EP3070220B1 - Method for treating thermal bridges - Google Patents

Method for treating thermal bridges Download PDF

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Publication number
EP3070220B1
EP3070220B1 EP16160910.2A EP16160910A EP3070220B1 EP 3070220 B1 EP3070220 B1 EP 3070220B1 EP 16160910 A EP16160910 A EP 16160910A EP 3070220 B1 EP3070220 B1 EP 3070220B1
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EP
European Patent Office
Prior art keywords
wall
thermal insulation
slab
block
concrete
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Application number
EP16160910.2A
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German (de)
French (fr)
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EP3070220A1 (en
Inventor
Luc Bresse
Jean-Paul Py
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KP1 SAS
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KP1 SAS
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/16—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material
    • E04B1/161—Structures made from masses, e.g. of concrete, cast or similarly formed in situ with or without making use of additional elements, such as permanent forms, substructures to be coated with load-bearing material with vertical and horizontal slabs, both being partially cast in situ
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
    • E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
    • E04B2001/7679—Means preventing cold bridging at the junction of an exterior wall with an interior wall or a floor
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • the invention relates to a method for treating thermal bridges between a floor and a wall adjacent to the floor.
  • the invention relates more particularly, although not exclusively, to a method for treating thermal bridges between a floor and a wall adjacent to one of the non-load-bearing edges of said floor (as opposed to the load-bearing edges of the floor which take up the majority of the forces applied to the floor). floor).
  • thermal bridges that is to say that of the path of conduction of heat or cold through the continuity of a heat-conducting material from the exterior of the building to the interior. This is particularly the case for floors which form thermal bridges due to their contact with the exterior walls of the building.
  • thermally insulating bodies between the wall and the floor, each body comprising reinforcements crossing the body so as to protrude on either side.
  • the reinforcements protruding towards the interior of the building are located coated so that they are rigidly attached to the floor.
  • the reinforcements protruding from the other side of the thermally insulating body are then in turn embedded in an external concrete element continuing the construction of the wall.
  • the floor and the wall are rigidly linked and the thermally insulating bodies arranged between them limit the corresponding thermal bridges.
  • thermally insulating bodies are for example described in the patent EP 0 866 185 .
  • the aim of the invention is to propose a method for treating thermal bridges between a floor and a wall adjacent to the floor which can be implemented easily.
  • the second reinforcements are embedded in the compression slab so that they are rigidly attached to the floor.
  • the first reinforcements are also embedded in an external concrete element continuing the construction of the wall. In this way, the floor and the wall are rigidly linked and the thermal insulation elements arranged between them limit the corresponding thermal bridges.
  • the invention thus makes it possible to alternate the rigid connection zones between the floor and the wall with the thermal insulation zones.
  • the reinforcements are therefore concentrated between the thermal insulation elements, at the level of the structural connection elements, so that the thermal insulation elements do not need to fulfill the function of anchoring the floor to the wall.
  • the various insulation elements are free of reinforcement, which simplifies their handling and handling.
  • the thermal insulation elements and the structural connection elements each need to perform only one function, they are small in size, which facilitates even more their handling and handling.
  • the method according to the invention therefore proves to be simple and quick to implement.
  • a thermal insulation element is proposed for the implementation of the process for treating thermal bridges which has just been described and in which a lower portion of the block made of thermally insulating material comprises a tab which forms a longitudinal extension of said portion lower and which is intended to receive the structural connecting element.
  • the structural connection element can simply be placed on the bracket which facilitates its installation along the portion of the wall. This further promotes the implementation of the method of the invention.
  • the tab ensures better treatment of thermal bridges by being arranged between the wall and the floor at the level of a rigid connection zone between the floor and the wall.
  • Such a tab ensures continuity of the thermal insulation in the lower part of the floor between two thermal insulation elements separated by the structural connection element resting on said tab.
  • a structural connection element is also proposed for the implementation of the thermal bridge treatment process which has just been described and in which the concrete of the block of the structural connection element is a concrete with lower thermal conductivity at 1 watt per meter-kelvin.
  • connection element also actively participates in reducing thermal bridges between the wall and the floor while fulfilling its function of anchoring the floor to the wall.
  • a structural connection element is also proposed for implementing the thermal bridge treatment process which has just been described and in which the concrete of the block of the structural connection element is a very high performance concrete.
  • a pre-slab intended to support the concrete of a compression slab is proposed to jointly constitute with this compression slab a floor, the pre-slab comprising a concrete body and at least one thermal insulation element as previously mentioned secured to an edge of said preslab.
  • the method according to a first implementation of the invention aims here to treat thermal bridges between a floor 1 and a wall 2 adjacent to one of the non-load-bearing edges of said floor.
  • the process is implemented during the construction of the building.
  • the wall 2 is mounted up to approximately the level where the floor 1 is intended to be laid.
  • the upper part of the mounted wall portion 3 has a stop 4 which allows a better connection with the rest of the wall 2 to be built as we will see later.
  • Beams P, supported by one or more props, are then positioned against the mounted portion 3 of the wall 2 so as to extend normal to said mounted portion 3 in order to serve as support for the construction of the floor 1.
  • pre-slabs (only one of which is referenced 5 here) are successively joined to each other on the beams P to delimit the surface of the floor 1.
  • One of the longitudinal edges 8 of at least one of the pre-slabs 5, forming partly one of the non-load-bearing edges of the floor 1, here runs along the portion 3 of the wall 2 considered.
  • Figure 3 thus illustrates the already mounted portion 3 of the wall 2 and said pre-slab 5.
  • the pre-slab 5 is mounted so that its longitudinal edge 8 extends along the mounted portion 3 of the wall 2 but with an offset relative to said portion 3 A space is therefore left between portion 3 and pre-slab 5.
  • thermal insulation elements 6 and connecting elements are then arranged along said longitudinal edge 8 of said pre-slab 5.
  • structural 7 of the floor so as to alternately arrange a thermal insulation element 6 and a structural connection element 7.
  • the different thermal insulation elements 6 and structural connection 7 are arranged between said longitudinal edge 8 of the pre-slab 5 and the portion 3 of the wall 2 at the level of the space which was left during step assembly of the pre-slabs.
  • the different thermal insulation elements 6 and structural connection elements 7 are arranged so that one of their faces comes to rest against the wall 2 (when it is completely mounted) and the corresponding opposite face comes into contact. support against the longitudinal edge 8 of the preslab 5.
  • the different thermal insulation elements 6 and structural connection 7 are attached so as to attach them to each other along the portion 3 of the wall 2. Said thermal insulation elements 6 and structural connection 7 form thus a border between the preslab 5 and the corresponding portion 3 of wall 2.
  • the different thermal insulation elements 6 and the different structural connection elements 7 are all elements independent of each other which facilitates their handling in particular to arrange them between the longitudinal edge 8 of the preslab 5 and the portion 2 of wall 3 already built.
  • All the structural connection elements 7 are here identical to each other and all the thermal insulation elements 6 are here identical to each other. In this way, the different thermal elements 6 and structural connection 7 together define a border between the pre-slab 5 and the wall 2, a continuous border of the same height along the entire length of the longitudinal edge 8 of the pre-slab 5 and therefore along the entire length of the corresponding wall.
  • the different thermal insulation elements 6 are secured to the pre-slab 5.
  • the preslab 5 comprises a concrete body, for example prestressed concrete comprising prestressing cables oriented longitudinally and parallel to each other, and an edge 10 anchored in said concrete body so as to form an edge of said body.
  • the different thermal insulation elements 6 are here secured to this edge 10 by interlocking in order to protrude from the upper face of the concrete body of the preslab 5.
  • the border 10 is rectilinear and extends along a straight line
  • the border 10 preferably comprises a honeycomb structure 11 made of plastic material which comprises raised cells extending from the structure 11 towards the outside of the border towards the pre-slab body 5.
  • the rectilinear border 10 therefore proves not only flexible and supple but also light. This facilitates the handling of the border 10 and makes it easier to secure it to the concrete body of the pre-slab 5. In addition, it proves possible to easily cut the rectilinear border 10 to modify its length according to production needs. This once again facilitates the fixing of the rectilinear border 10 to the preslab 5.
  • the different cells are here open towards the outside of the border 10 towards the body of the predalle 5.
  • Structure 11 is for example made of polypropylene.
  • the structure 11 comprises a first row 12 of cells arranged side by side along the straight line X (one of the cells of the first row being symbolized in dotted lines and designated by 13). All the cells of the first row 12 are joined here.
  • the structure 11 comprises a second row of cells 14 arranged side by side along the straight line adjacent cells (one of the blocks being symbolized in dashes and designated by 16) being separated by a space 17 from the next block of two adjacent cells. Thanks to the different spaces, structure 11 proves to be particularly flexible.
  • the second row of cells 14 extends under the first row of cells 12 so that a cell of the second row 14 is in the extension of a respective cell of the first row 12.
  • the second row of cells 14 s therefore extends parallel to the first row of cells 12.
  • the cells of the first row 12 are all identical to each other and the cells of the second row 14 are all identical to each other.
  • the cells of the first row 12 and the cells of the second row 14 have the same length (dimension taken along the straight line X) and substantially the same width (dimension taken along a straight line Y perpendicular to the line X and corresponding to the relief of the cells).
  • the cells of the second row 14 here have a height greater than the cells of the first row 12 (dimension taken along a line Z perpendicular to the line X and to the line Y).
  • the structure 11 comprises for example 29 cells for the first row 12 and 20 cells for the second row 14.
  • the structure 11 comprises recesses 18 (only part of which is referenced) passing through the structure 11 in its width. More precisely here a recess 18 passes through the structure 11 at the level of each of the cells of the second row 14 and at the level of each space 17 separating the blocks of two adjacent cells.
  • the recesses 18 are arranged in the upper part of the cells of the second row 14 and the associated spaces 17, substantially at the level of the border between the first row of cells 12 and the second row of cells 14.
  • the upper portion of the structure 11 comprises clipping notches 19 (only part of which is referenced) regularly distributed along the length of the structure 11 for nesting the thermal insulation elements 6 on the edge 10.
  • the clipping notches 19 are identical.
  • the clipping notches 19 are here provided at the border between the first row of cells 12 and the second row of cells 14 by an inflection in the walls of the cells. At each border there is here a clipping notch 19. When the thermal insulation elements 6 are in place on the border 10, they therefore cover the first row of cells 12.
  • each clipping notch 19 is surmounted by an anti-fouling nozzle 20 (only part of which is referenced).
  • the anti-fouling nozzles 20 are all identical. 20 anti-fouling nozzles are here formed in the walls of the first row of cells 12 so as to form a protuberance coming above the clipping notches 19.
  • the anti-fouling nozzles 20 are also configured so as to be inclined towards the lower portion of the structure 11 .
  • the lower portion of the structure here comprises anchoring feet 21.
  • the feet 21 are regularly distributed along the length of the structure 11.
  • the feet 21 are identical.
  • Each foot 21 extends here from a lower portion of the structure 11 towards the outside of the border 10 towards the lower portion of the body of the preslab 5.
  • Each foot 21 extends in the extension of one of the walls common to two adjacent cells of the second row 14 (i.e. a wall normal to the line X).
  • Structure 1 here includes a foot 21 at the level of each block of two adjacent cells.
  • Structure 11 has for example ten feet.
  • the structure 11 comprises two wings 22 associated with each foot 21.
  • Each wing 22 extends transversely to the foot 21 associated between a lower part of the foot 21 with the second row of cells 14. More precisely, each wing 22 s 'extends from the lower part of the foot 21 to the exterior wall of the block of two adjoining cells corresponding to said foot 21, exterior wall parallel to the wall common to the two adjoining cells of said block.
  • each positioning tab 23 is arranged so as to extend normal to the structure 11 towards the outside of the border 10 in the extension of the cells, in the direction of the width of the structure 11 (i.e. here so as to extend along the straight line Z towards the body of the preslab 2).
  • the structure here comprises several positioning tabs 23.
  • the structure 11 comprises two positioning tabs 23.
  • the positioning tabs 23 are identical, extend from the same level of the lower portion and are distributed over the length of the structure 11. Each positioning tab 23 extends here from the lower portion of one spaces 17 separating two blocks of adjacent cells.
  • the border 10 comprises a magnet (not visible here) which is arranged on the main face of the structure 11 opposite that from which the cells extend.
  • the magnet is arranged so as to project from the rest of said main face. More precisely here, the magnet is arranged below the different recesses 18 of the structure 11.
  • the magnet is in the form of a strip.
  • the magnet is arranged so as to extend along the line X. The magnet thus makes it possible to cover the entire length of the structure 11.
  • the border 10 which has just been described is preferably manufactured by injection.
  • the border 10 therefore turns out to be simple and quick to manufacture.
  • the border 10 is installed in a mold for manufacturing the body of the pre-slab 5 while being positioned along one of the longitudinal edges of this mold.
  • the feet 21 then come to rest on a bottom of the manufacturing mold.
  • the feet 21 allow an operator to correctly and easily and quickly position the border 10 in the manufacturing mold by serving as a reference point.
  • each positioning tab 23 is positioned in the manufacturing mold so as to extend just under the prestressing cables arranged in the manufacturing mold to be secured to the body of the pre-slab 5.
  • the positioning tabs 23 thus act also the role of reference point for the operator.
  • the concrete is then poured into the manufacturing mold to form the body of the pre-slab 5.
  • the anti-fouling nozzles 20 make it possible to protect the clipping notches 19 during the pouring of the body of the preslab 5 and in particular from the concrete which could accidentally be projected towards said clipping notches 19. This prevents concrete from freezing in the notches of clipping 19 which would be detrimental for interlocking subsequent thermal insulation elements 6 on said edge 10.
  • the recesses 18 make it possible to ensure balancing of the pressures experienced by the edge 10 during the pouring of the concrete.
  • the recesses 18 are of course arranged so as to be arranged at a height of the structure 11 greater than the height of the body of the pre-slab 5 so that concrete cannot penetrate through the recesses 18 between the manufacturing mold and the edge 10 .
  • the magnet makes it possible both to position the border 10 in the manufacturing mold, in the same way as the feet 21 or the positioning tabs 23, but also to maintain the border 10 in position, even during casting. concrete, pressing it against the associated edge.
  • the magnet allows the border 10 to be firmly pressed against the edge while adhering to the manufacturing mold. This avoids the infiltration of concrete between the border 10 and the manufacturing mold at the level of the upper portion of the border 10 during the casting of the body, which could hinder subsequent nesting of the thermal insulation elements 6 on said border 10.
  • the magnet Due to its elongated shape, the magnet also makes it possible to cover the entire length of the structure and therefore to press the entire edge 10 firmly against the manufacturing mold.
  • the edge 10 is shaped so as to be able to match the shape of the manufacturing mold so that its plating by the magnet proves possible.
  • the feet 21 are thus inclined relative to the rest of the structure 11 to be able to match the inclination of said chamfer.
  • the edge 10 finds itself rigidly attached to the pre-slab body 5 so as to form an all-rigid structure with it.
  • the pre-slab 5 can then be removed from the manufacturing mold.
  • edge 10 is easily and quickly joined to the body of the pre-slab 5 by overmolding during the manufacture of said body.
  • the edge 10 is therefore rigidly secured to the concrete body of the preslab 5 by being anchored therein.
  • the lower portion of the edge 10, corresponding to that of the structure 11 and extending here from the feet 21 to substantially the level of the recesses 18 without however reaching this, is coated in the concrete of the preslab body 5 .
  • the border 10 is thus arranged so that the cells extend towards the inside of the pre-slab 5. A part of the cells are therefore partially embedded in the concrete of the pre-slab body 5.
  • the smooth main face of the border 10 forms the free surface of the pre-slab 5 and therefore the longitudinal edge 8 of the pre-slab 5.
  • the thermal insulation elements 6 can then be fitted onto said upper portion.
  • thermal insulation elements 6 according to the first implementation of the invention will now be described.
  • the thermal insulation element 6 comprises a block of thermally insulating material. Said block is for example made of mineral wool.
  • a lower portion of said block comprises a tab 50 (or tongue) forming a longitudinal extension of the block.
  • Leg 50 came as one piece with the rest of the block.
  • the block therefore has roughly an L shape with a main part 24 of substantially parallelepiped shape and a secondary part formed of the longitudinal extension 50.
  • the tab 50 therefore has a height less than the height of the main part 24.
  • the tab 50 has a width identical to that of the main part 24.
  • the tab 50 here has a length less than the length of the main part 24.
  • the tab 50 has a length of between 20 and 40 centimeters and the main part 24 has a length of between 70 and 110 centimeters.
  • the main part 24 has a height substantially equal here to the total height of the floor 1. In this way, when the thermal insulation element 6 is fitted onto the edge 10, the upper face of the thermal insulation element 6 is at substantially the height of the compression slab 9 cast on the pre-slab 5 as we will see later.
  • the tab 50 is configured so as to have a height equal to the height of the body of the preslab 5.
  • the thermal insulation element 6 comprises a plate 25, the block of thermally insulating material being secured to said plate 25.
  • the thermal insulation element 6 comprises two straps 26 jointly surrounding the main part 24 of the block made of thermally insulating material and the plate 25 so as to fix said block to said plate 25.
  • Plate 25 is for example made of metal. Typically plate 25 is made of steel.
  • the plate 25 has a shape substantially identical to that of the block made of thermally insulating material to match the contours of said block when they are secured together.
  • the plate 25 here carries latching means 27 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for nesting the thermal insulation element 6 on said edge 10.
  • the latching means 27 of the thermal insulation element are here aimed at the plate 25.
  • Said latching means 27 here comprise two slightly elastically deformable fingers each comprising a Z-shaped gripping portion , one of the edges of the Z snaps into two successive clipping notches 19 of the edge 10 to secure the thermal insulation element 6 to the pre-slab 5.
  • the structural connecting element 7 comprises a concrete block 28 comprising reinforcements 29 passing through said block so as to protrude on either side of the block 28.
  • the reinforcements 29 are embedded in the concrete of the block 28 of the structural connection element 7 so that the reinforcements 29 and said block 28 form an all-rigid structure.
  • the frames 29 are for example made of steel.
  • the block 28 of the structural connection element 7 is configured to be placed on the tab 50 of one of the thermal insulation elements 6.
  • the block 28 of the structural connection element 7 is here shaped into a rectangular parallelepiped of the same width and the same length as the corresponding tab 50.
  • the block 28 of the structural connection element 7 has a height such that the sum of the height of the block 28 of the element structural connection 7 and the height of the tab 50 corresponds substantially to the height of the main part 24 of the block of thermally insulating material of the associated thermal insulation element 6.
  • the structural connection element 7 is therefore configured so that the sum of the height of the block 28 of said structural connection element 7 and the height of the associated tab 50 is substantially equal to the total height of the floor 1.
  • the reinforcements 29 are for their part of course arranged so as to be at a height greater than that of the edge 10 anchored in the body of the preslab 5, when the structural connecting element 7 is placed on the tab 50, for s extend on one side towards the pre-slab 5 above the pre-slab 5 and on the other side towards the wall 2 above at least part of the portion 3 of the wall 2 already constructed.
  • the concrete of the block 28 of the structural connecting element 7 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin.
  • the concrete of block 28 of structural connecting element 7 therefore has reduced thermal conductivity.
  • the structural connection element 7 also actively participates in the treatment of thermal bridges that may form between the wall 2 and the floor 1.
  • the concrete of block 28 of the structural connecting element 7 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces further treatment of thermal bridges by the structural connection element 7.
  • Thermetera concrete registered trademark of the Lafarge company
  • Thermetera concrete is used as concrete.
  • the structural connection elements 7 are not secured to the pre-slab 5 but only placed along the longitudinal edge 8 of the pre-slab 5.
  • the thermal insulation elements 6, the structural connection elements 7 and the edge 10 together constitute a formwork portion of a compression slab 9 intended to be cast on the pre-slab 5.
  • Implementation of the formwork of the compression slab 9 turns out to be very simple thanks to the invention by simply snapping the thermal insulation elements 6 onto the edge 10 of the pre-slab 5.
  • the joining of the different blocks together ensures good formwork of the compression slab 9.
  • Concrete is also poured above the already existing portion 3 of wall 2 to continue the construction of wall 2 so that the reinforcements 29 project from the other side of the structural connecting element 7 (and which are extend above portion 2 of wall 3 already constructed) are also found buried in concrete.
  • the frames 29 are thus anchored on one side in the floor 1 and on the other side in the wall 2 which ensures the load-bearing capacity of the floor 1.
  • the thermal bridges likely to form between the floor 1 and the wall 2 are very limited since the thermal insulation elements 6 form a thermal insulation barrier between the floor 1 and the wall 2 being arranged between the floor 1 and the wall 2 over substantially the entire height of the floor 1 (as clearly visible in the figures 4 And 5 ).
  • the thermal bridges are further limited by the presence of the tab 50 of a height substantially also at the height of the pre-slab 5 participating in the formation of a continuous thermal insulation barrier between the floor 1 and the wall 2: the entire lower portion of the floor 1 (corresponding substantially to the height of the pre-slab 5) is thus thermally insulated from the wall 2.
  • the thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 7, concrete which is much more thermally insulating than the concretes traditionally used in the field of buildings and which have a thermal conductivity of at least 2 watt per meter-kelvin.
  • the structural connection elements 7 thus also participate in the formation of a thermal insulation barrier between the floor 1 and wall 2.
  • the joining of the various structural connection elements 7 and thermal insulation elements 6 makes it possible both to ensure good thermal insulation of the floor 1 at the level of the wall 2 and at the same time to ensure good load-bearing capacity of the floor 1.
  • the use of mineral wool for the blocks of the thermal insulation elements 6 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 50 on the thermal insulation elements 6 makes it possible to improve these fire protection and sound insulation functions at the level of the lower portion of the floor 1.
  • thermal insulation elements 6 are secured by nesting to the edge 10 and that the structural connection elements 7 are positioned on the legs 50 of the thermal insulation elements 6, it is possible to 'free from a conventional smooth support of the relatively bulky prior art. A simple support by beam of the pre-slab 5 is sufficient here.
  • the different thermal insulation elements 6 are this time not provided with a tab. Apart from the absence of a tab, the different thermal insulation elements 6 are identical to those previously described.
  • the thermal insulation element 6 comprises a block 30 of thermally insulating material.
  • Said block 30 is for example made of mineral wool.
  • Block 30 therefore simply has the shape of a rectangular parallelepiped here.
  • the block 30 has a height substantially equal here to the total height of the floor. In this way, when the thermal insulation element 6 is fitted onto the edge 10 anchored in the pre-slab 5, the upper face of the structural connection element 7 is at substantially the height of the compression slab cast on the pre-slab.
  • the thermal insulation element 6 comprises a plate 31, the block 30 of thermally insulating material being secured to said plate 31.
  • the thermal insulation element 6 comprises two straps (of which only one strap 32 is visible here) jointly surrounding the block 30 of thermally insulating material and the plate 31 so as to fix said block 30 to said plate 31.
  • Plate 31 is for example made of metal. Typically plate 31 is made of steel.
  • the plate 31 has a shape substantially identical to that of the block 30 of thermally insulating material to match the contours of said block 30 when they are secured together.
  • the plate 31 here carries latching means 40 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for nesting the thermal insulation element 6 on said edge 10.
  • the latching means 40 of the thermal insulation element 6 are here aimed at the plate 31.
  • Said latching means 40 here comprise two slightly elastically deformable fingers each comprising a hooking portion shaped like Z, one of the edges of the Z snaps into two successive clipping notches 19 of the edge 10 to secure the thermal insulation element 6 to the pre-slab 5.
  • the structural connection elements 7 of the variant described are shaped so that they can also be secured to the preslab 5.
  • the structural connection element 7 comprises a block 33 in concrete and latching means 43 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for the nesting of the structural connecting element 7 on said edge 10
  • the latching means 43 of the element of the structural connection element 7 are here referred to in block 33.
  • Said latching means 43 here comprise two slightly elastically deformable fingers each comprising a hooking portion shaped in Z, one of the edges of the Z snapping into two successive clipping notches 19 of the edge 10 for secure the structural connection element 7 to the pre-slab 5.
  • the concrete block 33 comprises reinforcements 34 passing through said block 33 so as to protrude on either side of the block 33.
  • the block 33 of the structural connection element 7 is here shaped into a rectangular parallelepiped.
  • the block 33 of the structural connection element 7 has a height substantially identical to the height of the block 30 of thermally insulating material of the associated thermal insulation element 6.
  • the structural connection element 7 is therefore configured so as to have a height substantially identical to the total height of the floor.
  • the upper face of the structural connection element 7 is at substantially of the compression slab cast on the pre-slab 5.
  • the reinforcements 34 are for their part of course arranged so as to be at a height greater than that of the edge 10 anchored in the body of the pre-slab 5, when the connecting element structural 7 is arranged along the edge 10, to extend on one side towards the pre-slab 5 above the pre-slab 5 and on the other side towards the wall 2 above at least part of portion 3 of wall 2 already constructed.
  • the reinforcements 34 are embedded in the concrete of the block 33 of the structural connecting element 7 so that the frames 34 and said block 33 form an all-rigid structure.
  • the frames 34 are for example made of steel, typically stainless steel.
  • the concrete of block 33 of the structural connection element 7 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin.
  • the concrete of block 33 of structural connection element 7 therefore has reduced thermal conductivity.
  • the concrete of block 33 of the structural connection element 7 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 7.
  • a second implementation of the method according to the invention will be described with reference to the figures 8 has 10 .
  • the elements in common with the first implementation retain the same numbering increased by a hundred.
  • floor 101 of the second implementation is a solid slab floor.
  • the wall 102 is mounted up to substantially the level where the floor 101 is intended to be laid.
  • the upper part of the portion of wall already assembled has a stop which allows a better connection with the rest of the wall to be built.
  • a rail support for the construction of the floor 101 is then positioned against the mounted portion of the wall 102.
  • Thermal insulation elements 106 and structural connection elements 107 are then arranged along the wall 102, directly on the support, so as to arrange alternately a thermal insulation element 106 and a structural connection element 107 along said wall 102.
  • the different thermal insulation elements 106 and structural connection 107 substantially at the level where a compression slab 109 of the floor 101 must be poured.
  • the different thermal insulation elements 106 and structural connection elements 107 are arranged so as to have one of their faces resting against the wall 102 (when it is completely mounted).
  • Each thermal insulation element 106 comprises a block of thermally insulating material. Said block is for example made of mineral wool.
  • a lower portion of said block comprises a tab 150 (or tongue) forming a longitudinal extension of the block.
  • the lug 150 came as one piece with the rest of the block.
  • the block therefore has roughly an L shape with a main part 124 of substantially parallelepiped shape and a secondary part formed by the tab 150.
  • the tab 150 therefore has a height less than the height of the main part 124.
  • the tab 150 has a width identical to that of the main part 124.
  • the tab 150 here has a length less than the length of the main part 124.
  • the tab 150 has a length of between 20 and 40 centimeters and the main part 124 has a length of between 70 and 110 centimeters.
  • the main part 124 has a height substantially equal here to the total height of the floor 101. In this way, the upper face of the thermal insulation element 106 is at substantially the height of the cast compression slab 109.
  • the thermal insulation element 106 does not include any plate, strap or latching means. This is explained by the fact that the thermal insulation element 106 is simply arranged along the wall but is not attached to any pre-slab or other part of the building already assembled.
  • each structural connecting element 107 comprises a concrete block 128 comprising reinforcements 129 passing through said block 128 so as to protrude on either side of the block 128.
  • the reinforcements 129 are embedded in the concrete of the block 128 of the structural connection element 107 so that the reinforcements 129 and said block 128 form an all-rigid structure.
  • the frames 129 are for example made of steel, typically stainless steel.
  • the block 128 of the structural connection element 107 is configured to be placed on the tab 150 of one of the thermal insulation elements 106.
  • the block 128 of the structural connection element 107 is here shaped into a rectangular parallelepiped of the same width and the same length as the corresponding leg 150.
  • the block 128 of the structural connecting element 107 has a height such that the sum of the height of the block 128 of the structural connecting element 107 and the height of the tab 150 corresponds substantially to the height of the main part 124 of the block of thermally insulating material of the associated thermal insulation element 106.
  • the structural connection element 107 is therefore configured so that the sum of the height of the block 128 of said structural connection element 107 and the height of the tab 150 is substantially equal to the total height of the floor 101.
  • the upper face of the structural connection element 107 is at substantially the height of the cast compression slab 109.
  • the concrete of the block 128 of the structural connection element 107 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin.
  • the concrete of block 128 of structural connecting element 107 therefore has reduced thermal conductivity.
  • the concrete of block 128 of the structural connection element 107 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 107.
  • the compression slab 109 is formed by pouring concrete so that the reinforcements 129 projecting from the structural connecting element 107 extending above the support find themselves embedded in the concrete.
  • the compression slab 109 is cast so as to come at the height of the various structural connection elements 107 and thermal insulation 106 running along the wall 102.
  • Concrete is also poured above the already existing wall portion 103 to continue the construction of the wall 102 so that the projecting reinforcements 129 on the other side of the structural connection element 107 (and which extend above wall 102) are also found buried in concrete.
  • the frames 129 are thus anchored on one side in the floor 101 and on the other side in the wall 102 which ensures the load-bearing capacity of the floor 101.
  • the thermal bridges likely to form between the floor 101 and the wall 102 are very limited since the thermal insulation elements 106 form a thermal insulation barrier between the floor 101 and the wall 102 by being arranged between the floor 101 and the wall 102 over substantially the entire height of the floor 101.
  • the thermal bridges are further limited by the presence of the tab 150 participating in the formation of a continuous thermal insulation barrier between the floor 101 and the wall 102: the entire lower portion of the floor 101 is thus thermally insulated from the wall 102.
  • the thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 107, concrete which is much more thermally insulating than the concretes traditionally used in buildings and which have a thermal conductivity of at least 2 watts per meter-kelvin. The structural connection elements 107 thus also participate in the formation of a thermal insulation barrier between the floor 101 and wall 102.
  • the thermal bridges likely to form between the floor 101 and the wall 102 therefore prove to be extremely reduced here along the entire length of the wall 102 considered and over the entire height of the floor 101.
  • the adjoining of the various structural connection elements 107 and thermal insulation elements 106 makes it possible both to ensure good thermal insulation of the floor 101 at the level of the wall 102 and at the same time to ensure good load-bearing capacity of the floor 101.
  • the use of mineral wool for the blocks of the thermal insulation elements 106 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 150 on the thermal insulation elements makes it possible to improve these fire protection and acoustic insulation functions at the level of the lower portion of the floor 101.
  • a third implementation of the method according to the invention will be described with reference to the figures 11 to 13 .
  • the elements in common with the first implementation retain the same numbering increased by two hundred.
  • the floor of the third implementation is a floor with interjoists and beams.
  • the wall 202 is raised up to substantially the level where the floor is intended to be laid.
  • the upper part of the mounted wall portion has a stop which allows a better connection with the rest of the wall to be built.
  • a network of joists and beams 235 is arranged to delimit the floor of the building.
  • One of the beams 236 extends parallel to the wall 202 considered with an offset relative to the wall 202.
  • thermal insulation elements 206 and structural connecting elements 207 so as to alternately arrange a thermal insulation element 206 and a connecting element structural 207 along said wall 202.
  • thermal insulation elements 206 and structural connection elements 207 are arranged so as to have one of their faces resting against the wall portion 202 (when it is completely assembled).
  • the thermal insulation element 206 comprises a block of thermally insulating material.
  • Said block is for example made of polystyrene.
  • Said block here is a longitudinal floor breaker.
  • the block thus comprises a lower portion which comprises two tabs (or tongues) 237 each forming a distinct longitudinal extension of said block.
  • the legs 237 come as a single piece with the rest of the block.
  • the block therefore has two secondary parts each formed of one of the legs 237 and a main part 238 framed by the two secondary parts.
  • the legs 237 therefore have a height less than the height of the main part 238.
  • the legs 237 have a width identical to that of the main part 238.
  • the legs 237 here have a length less than the length of the main part 238.
  • the main part 238 has a height substantially equal here to the total height of the floor. In this way, the upper face of the structural connection element 207 is at substantially the height of the compression slab cast on the network of beams and joists 235.
  • the main part 238 comprises support portions 239, a part of which is intended to rest on the beam 236 adjacent to the portion of the wall 202 and the other part of which is intended to come on said portion of wall 202 already formed .
  • said thermal insulation element 206 is thus inserted between the wall 202 and the adjacent beam 236 so that it rests on said wall 202 and said beam 236 by its support portions 239.
  • the structural connecting element 207 comprises a concrete block 228 comprising reinforcements 229 passing through said block 228 so as to protrude on either side of the block 228.
  • the reinforcements 229 are embedded in the concrete of the block 228 of the structural connection element 207 so that the reinforcements 229 and said block 228 form an all-rigid structure.
  • the frames 229 are for example made of steel, typically stainless steel.
  • the block 228 of the structural connection element 207 is configured to be placed on one of the legs 237 of one of the thermal insulation elements 206.
  • the block 228 of the structural connection element 207 is here shaped into a parallelepiped rectangle of the same width and the same length as the corresponding tab 237.
  • the block 228 of the structural connection element 207 has a height such that the sum of the height of the block 228 of the structural connection element 207 and the height of the tab 237 corresponds substantially to the total height of the floor.
  • the upper face of the structural connection element 207 is at substantially the height of the cast compression slab .
  • the concrete of the block 228 of the structural connection element 207 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin.
  • the concrete of block 228 of structural connecting element 207 therefore has reduced thermal conductivity.
  • the concrete of block 228 of the structural connection element 207 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 207.
  • Concrete is also poured above the already existing wall portion 202 to continue the construction of the wall 202 so that the reinforcements 229 project on the other side of the structural connection element 207 (and which extend above wall 202) are also found buried in concrete.
  • the frames 229 are thus anchored on one side in the floor and on the other side in the wall 202 which ensures the load-bearing capacity of the floor.
  • thermal bridges likely to form between the floor and the wall 202 are very limited since the thermal insulation elements 206 form a thermal insulation barrier between the floor and the wall 202 by being arranged between the floor and the wall. wall 202 over substantially the entire height of the floor.
  • the thermal bridges are further limited by the presence of the tab 237 participating in the formation of a continuous thermal insulation barrier between the floor and the wall 202: the entire lower portion of the floor is thus thermally isolated from the wall 202.
  • thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 207, concrete which is much more thermally insulating than concretes traditionally used in buildings and which have a thermal conductivity of at least 2 watts per meter-kelvin.
  • the structural connection elements 207 thus also participate in the formation of a thermal insulation barrier between the floor and wall 202.
  • the thermal bridges likely to form between the floor and the wall 202 therefore prove to be extremely reduced here along the entire length of the wall 202 considered and over the entire height of the floor.
  • the joining of the various structural connection elements 207 and thermal insulation elements 206 makes it possible both to ensure good thermal insulation of the floor at the level of the wall 202 and at the same time to ensure good load-bearing capacity of the floor.
  • the use of mineral wool for the blocks of thermal insulation elements 206 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 237 on the thermal insulation elements 206 makes it possible to improve these fire protection and sound insulation functions at the level of the lower portion of the floor.
  • the various thermal insulation elements 306 are not here secured to the pre-slab 305 by snap-fastening but by being directly anchored in the concrete body of said pre-slab 305.
  • the pre-slab 305 has no border and that the thermal insulation elements 306 do not include any snap-fastening means as in the first implementation.
  • the thermal insulation elements 306 are thus secured to the pre-slab 305 during the manufacturing of the pre-slab 305.
  • the thermal insulation elements 306 are arranged in the manufacturing mold of the pre-slab 305 so that 'they are attached to the bank of said mold. Then the concrete body of the pre-slab 305 is poured, which makes it possible to anchor the thermal insulation elements 306 in said concrete body and thus to secure the thermal insulation elements 306 to the pre-slab 305.
  • the thermal insulation elements 306 are thus located at the edge of the pre-slab 305 and not offset from the edge of the pre-slab 305.
  • thermal insulation elements 306 and the structural connection elements 307 are here identical to those of the first implementation and the structural connection elements 307 are attached along the wall by being placed on the tab 350 of the adjacent thermal insulation element.
  • the different elements are united to the pre-slab once the pre-slab is in place against the wall, the different elements can be secured to the pre-slab before installing the pre-slab against the wall (for example directly on the production site of the pre-slab or on the manufacturing site of the building before assembly of the pre-slab).
  • the preslab may have a greater number of borders to form one of its edges.
  • the successive borders intended to form an edge of the preslab can either be fitted together at their ends, or be joined together without being fitted together or be separated by a space.
  • edges can be recut to a desired length to form the edge of the preslab so that the cut end does not have any means of snapping, unlike the initial formed end, that one of the cells is not complete after cutting. ..
  • the border may be different from what has been described.
  • the second row of cells can thus only include cells adjacent to each other.
  • the first row of cells and the second row of cells will then have the same number of cells.
  • the tabs will then extend under one of the cells of the second row, a cell not associated with an anchoring foot.
  • the border may not have feet, tabs, etc.
  • the cells, feet, tabs, anti-fouling nozzles, clipping notches may not all be identical.
  • the border may have a different number of rows of cells. The cells will not necessarily be organized in a row.
  • the border may not have a magnet.
  • the edge can simply be placed in the mold for manufacturing the pre-slab body, being positioned along the edges of this mold and, if necessary, simply being held in position by external holding members.
  • the edge is secured to the body of the pre-slab by overmolding during the manufacture of said body, it may be secured to the body of the pre-slab differently, for example by screw-type fixing elements or the like.
  • the border has a cellular structure made of plastic, the border could be in another material, for example concrete or even metal.
  • each of the variants of the thermal insulation elements can be associated with any of the aforementioned borders.
  • each of the variants of the structural connection elements can be associated with any of the aforementioned borders.
  • the thermal insulation element can thus be secured to the pre-slab other than what has been described.
  • the thermal insulation element may include at least one receiving tray in which the block of thermally insulating material will be arranged, the thermal insulation element then being secured to the edge by nesting the receiving tray to said border so that the thermal insulation element extends between the wall and the border.
  • the thermal insulation element can be secured to the pre-slab other than by fitting to the edge of the pre-slab.
  • the pre-slab may thus not have a border.
  • the thermal insulation element can thus be secured to the pre-slab by gluing, screwing or even by anchoring in the concrete body of the pre-slab. as has already been indicated (the thermal insulation element then being secured to the pre-slab during the manufacturing of the pre-slab)...
  • the thermal insulation element could simply be arranged between the pre-slab and the wall without being secured to the pre-slab.
  • the thermal insulation element may be different from what has been described.
  • the block of the thermal insulation element could be in a material different from what has been described, for example based on polystyrene, based on expanded polystyrene, based on mineral wool, based on expanded perlite, etc.
  • the tab of the block of the thermal insulation element is integral with the rest of said block, the tab can form an element independent of the rest of the block but fixed to the block (by screwing, by gluing, etc.). .) so that the tab and the rest of the block form an all-rigid unit.
  • the thermal insulation element comprises a plate carrying the latching means
  • said plate may not be of a shape identical to that of the block of corresponding thermally insulating material.
  • the plate can be secured to the block differently than by a strap, for example by gluing or screwing or even using an elastic band.
  • the thermal insulation element may not include a plate.
  • the thermal insulation element includes snap-fit or nesting means on the pre-slab, the snap-fit means can be directly fixed to the block of the thermal insulation element, for example by gluing or by face.
  • the block of the thermal insulation element could in this case be based on expanded perlite.
  • the different thermal insulation elements are all identical to each other the along the same wall, the different thermal insulation elements may of course be different from each other along the same wall.
  • certain thermal insulation elements may include a tab as illustrated in figure 1 and others do not behave as illustrated in the Figure 7 .
  • the thermal insulation elements may be of different dimensions from each other, in particular of different lengths.
  • Certain thermal insulation elements may be formed from a single block of thermally insulating material and others from several blocks of thermally insulating material joined together. In the case of a pre-slab floor, certain elements may be secured to the pre-slab and others only arranged along the pre-slab without being secured to it.
  • connection element may be different from what has been described.
  • the structural connection element may not be arranged along the wall by being placed on the leg of the adjoining thermal insulation element but rest directly on the rail support allowing the assembly of the floor (floor with pre-slabs or floor with solid slab), rest directly on the network of beams and joists (joist and joist floor) or be secured to a pre-slab (pre-slab floor).
  • the structural connecting element can be secured to the pre-slab by fitting onto the edge of the pre-slab.
  • the structural connection element may include latching means capable of cooperating with corresponding latching means of the edge (such as clipping notches of the edge) anchored in the preslab.
  • the structural connection element may include at least one receiving tray in which the concrete block is arranged, the element structural connection then being secured to the border by nesting said receiving tray to the border.
  • the structural connecting element can be secured to the pre-slab other than by fitting onto the pre-slab edge.
  • the pre-slab may thus not have a border.
  • the structural connection element can thus be secured to the pre-slab by gluing, screwing, by anchoring in the concrete body of the pre-slab, etc.
  • the structural connection element can simply be arranged between the pre-slab and the wall without being attached to the pre-slab.
  • the concrete block of the structural connection element may be in a material different from what has been described.
  • the concrete of the block of the structural connection element could be a very high performance concrete.
  • the concrete chosen will thus be able to have a compressive strength greater than 80 MegaPascal.
  • the concrete of the block of the structural connecting element could be a high-performance concrete or even an ultra-high performance concrete.
  • the different structural connection elements are all identical to each other along the same wall, the different structural connection elements could of course be different from each other along the same wall.
  • certain structural connection elements could be arranged on the legs of the thermal insulation elements and others could be arranged directly along the wall without resting on such legs.
  • the structural connection elements may be of different dimensions from each other, in particular be of different length.
  • certain elements may be attached to the pre-slab and others only arranged along the pre-slab.
  • the different elements are attached to each other, we can arrange the different elements so as to leave a slight space between two consecutive elements. We can also join the different elements together once they are joined and arranged along the wall (by gluing or screwing for example). Although here the different elements are all independent of each other before their assembly along the wall, we could consider joining one or more elements together initially and then arranging said assembly along the wall in a second step instead of joining them together once they are already arranged along the wall.
  • Structural connecting elements such as thermal insulation elements may also include an additional layer of fire protection such as for example a layer of mineral wool.
  • the material of the blocks of the various structural connection elements such as the material of the thermal insulation elements can themselves provide a fire protection function.
  • the method according to the invention has been implemented for the treatment of thermal bridges between the non-load-bearing edge of the floor and the wall adjacent to said edge, the method could also be implemented for the treatment of thermal bridges between a load-bearing edge of the floor and a wall adjacent to said edge.

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Description

L'invention concerne un procédé de traitement de ponts thermiques entre un plancher et un mur adjacent au plancher.The invention relates to a method for treating thermal bridges between a floor and a wall adjacent to the floor.

L'invention concerne plus particulièrement bien que non exclusivement un procédé de traitement de ponts thermiques entre un plancher et un mur adjacent à l'une des rives non porteuse dudit plancher (par opposition aux rives porteuses du plancher qui reprennent la majorité des efforts appliqués au plancher).The invention relates more particularly, although not exclusively, to a method for treating thermal bridges between a floor and a wall adjacent to one of the non-load-bearing edges of said floor (as opposed to the load-bearing edges of the floor which take up the majority of the forces applied to the floor). floor).

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

Il existe deux manières de traiter l'isolation d'un bâtiment, soit en enfermant l'ensemble de la construction dans une enveloppe isolante, soit en pratiquant une isolation à l'intérieur d'un mur dont une face est au contact avec l'atmosphère extérieure.There are two ways of treating the insulation of a building, either by enclosing the entire construction in an insulating envelope, or by providing insulation inside a wall, one side of which is in contact with the exterior atmosphere.

Dans le cas du traitement de l'isolation par l'intérieur, l'un des principaux problèmes à résoudre est celui posé par les ponts thermiques, c'est-à-dire celui du chemin de conduction de la chaleur ou du froid par la continuité d'un matériau conducteur de calorie depuis l'extérieur du bâtiment jusqu'à l'intérieur. C'est notamment le cas des planchers qui forment des ponts thermiques du fait de leur contact avec les murs extérieurs du bâtiment.In the case of the treatment of insulation from the inside, one of the main problems to be solved is that posed by thermal bridges, that is to say that of the path of conduction of heat or cold through the continuity of a heat-conducting material from the exterior of the building to the interior. This is particularly the case for floors which form thermal bridges due to their contact with the exterior walls of the building.

Pour tenter de traiter ce type de pont thermique mur/plancher, il est connu d'agencer des corps thermiquement isolant entre le mur et le plancher, chaque corps comportant des armatures traversant le corps de sorte à être saillantes de part et d'autre. Après coulage de la dalle de compression pour former le plancher, les armatures dépassant vers l'intérieur du bâtiment se trouvent enrobées de sorte qu'elles sont rigidement solidarisées au plancher. Les armatures dépassant de l'autre côté du corps thermiquement isolant sont alors à leur tour noyées dans un élément de béton externe poursuivant la construction du mur. De la sorte, le plancher et le mur se trouvent liés rigidement et les corps thermiquement isolant agencés entre eux limitent les ponts thermiques correspondants. De tels corps thermiquement isolant sont par exemple décrits dans le brevet EP 0 866 185 .To try to deal with this type of wall/floor thermal bridge, it is known to arrange thermally insulating bodies between the wall and the floor, each body comprising reinforcements crossing the body so as to protrude on either side. After pouring the compression slab to form the floor, the reinforcements protruding towards the interior of the building are located coated so that they are rigidly attached to the floor. The reinforcements protruding from the other side of the thermally insulating body are then in turn embedded in an external concrete element continuing the construction of the wall. In this way, the floor and the wall are rigidly linked and the thermally insulating bodies arranged between them limit the corresponding thermal bridges. Such thermally insulating bodies are for example described in the patent EP 0 866 185 .

Toutefois le transport de tels corps thermiquement isolant du site de production jusqu'au chantier du bâtiment concerné ainsi que la mise en place desdits corps sur le chantier peut s'avérer fastidieux du fait de leur volume important.However, the transport of such thermally insulating bodies from the production site to the site of the building concerned as well as the installation of said bodies on the site can prove tedious due to their large volume.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Le but de l'invention est de proposer un procédé de traitement de ponts thermiques entre un plancher et un mur adjacent au plancher qui puisse être mis en oeuvre facilement.The aim of the invention is to propose a method for treating thermal bridges between a floor and a wall adjacent to the floor which can be implemented easily.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet, l'invention a pour objet un procédé de traitement de ponts thermiques entre un plancher à prédalles et un mur adjacent au plancher à prédalles, le procédé comportant les étapes de :

  • rapporter à proximité d'une portion du mur, sensiblement au niveau où une dalle de compression du plancher doit être coulée, des éléments d'isolation thermique et des éléments de liaison structurelle du plancher de sorte à agencer en alternance un élément d'isolation thermique et un élément de liaison structurelle le long de la portion du mur, chaque élément d'isolation thermique comportant un bloc en matériau isolant thermiquement et chaque élément de liaison structurelle comportant un bloc en béton comportant des armatures traversant le bloc en béton de sorte à être saillantes de part et d'autre du bloc en béton, chaque élément de liaison structurelle étant agencé le long du mur de sorte que des premières armatures en saillie d'un côté du bloc en béton soient positionnées au-dessus de la portion du mur et que des deuxièmes armatures en saillie de l'autre côté du bloc en béton soient positionnées au niveau de la future dalle de compression et au-dessus d'un corps en béton d'une prédalle du plancher à prédalles,
  • couler du béton pour prolonger la portion du mur de sorte que les premières armatures se retrouvent noyées dans le béton du prolongement du mur et couler le béton pour former la dalle de compression du plancher à prédalles de sorte que les deuxièmes armatures en saillie se retrouvent noyées dans le béton de la dalle de compression du plancher à prédalles.
To this end, the subject of the invention is a method for treating thermal bridges between a pre-slab floor and a wall adjacent to the pre-slab floor, the method comprising the steps of:
  • bring near a portion of the wall, substantially at the level where a compression slab of the floor must be poured, thermal insulation elements and structural connection elements of the floor so as to alternately arrange a thermal insulation element and a structural connection element along the portion of the wall, each thermal insulation element comprising a block of thermally insulating material and each structural connection element comprising a concrete block comprising reinforcements passing through the concrete block so as to be protruding on both sides other side of the concrete block, each structural connection element being arranged along the wall so that first reinforcements projecting from one side of the concrete block are positioned above the portion of the wall and that second reinforcements projecting from the other side of the concrete block are positioned at the level of the future compression slab and above a concrete body of a pre-slab of the pre-slab floor,
  • pour concrete to extend the portion of the wall so that the first reinforcements find themselves embedded in the concrete of the wall extension and pour the concrete to form the compression slab of the pre-slab floor so that the second projecting reinforcements find themselves embedded in the concrete of the compression slab of the pre-slab floor.

Après coulage de la dalle de compression pour former le plancher, les deuxièmes armatures se trouvent enrobées dans la dalle de compression de sorte qu'elles sont rigidement solidarisées au plancher. Les premières armatures se trouvent également enrobées dans un élément de béton externe poursuivant la construction du mur. De la sorte, le plancher et le mur se trouvent liés rigidement et les éléments d'isolation thermique agencés entre eux limitent les ponts thermiques correspondants.After pouring the compression slab to form the floor, the second reinforcements are embedded in the compression slab so that they are rigidly attached to the floor. The first reinforcements are also embedded in an external concrete element continuing the construction of the wall. In this way, the floor and the wall are rigidly linked and the thermal insulation elements arranged between them limit the corresponding thermal bridges.

L'invention permet ainsi d'alterner les zones de liaison rigides entre le plancher et le mur avec les zones d'isolation thermique. Les armatures se retrouvent donc concentrées entre les éléments d'isolation thermique, au niveau des éléments de liaison structurelle, de sorte que les éléments d'isolation thermique n'ont pas besoin de remplir de fonction d'ancrage du plancher au mur. De la sorte, les différents éléments d'isolation sont exempts d'armatures ce qui simplifie leur manutention et leur manipulation. En outre, comme les éléments d'isolation thermique et les éléments de liaison structurelle n'ont besoin de remplir chacun qu'une seule fonction, ils s'avèrent de tailles réduites ce qui facilite encore davantage leur manutention et leur manipulation.The invention thus makes it possible to alternate the rigid connection zones between the floor and the wall with the thermal insulation zones. The reinforcements are therefore concentrated between the thermal insulation elements, at the level of the structural connection elements, so that the thermal insulation elements do not need to fulfill the function of anchoring the floor to the wall. In this way, the various insulation elements are free of reinforcement, which simplifies their handling and handling. In addition, as the thermal insulation elements and the structural connection elements each need to perform only one function, they are small in size, which facilitates even more their handling and handling.

Un opérateur peut ainsi facilement et rapidement venir positionner les uns à la suite des autres les éléments d'isolation thermique et les éléments de liaison structurelle le long de la portion du mur avant de couler le béton pour lier rigidement le plancher et le mur.An operator can thus easily and quickly position the thermal insulation elements and the structural connection elements one after the other along the portion of the wall before pouring the concrete to rigidly connect the floor and the wall.

Le procédé selon l'invention s'avère donc simple et rapide à être mis en oeuvre.The method according to the invention therefore proves to be simple and quick to implement.

Il est proposé un élément d'isolation thermique pour la mise en œuvre du procédé de traitement de ponts thermiques qui vient d'être décrit et dans lequel une portion inférieure du bloc en matériau isolant thermiquement comporte une patte qui forme une extension longitudinale de ladite portion inférieure et qui est destinée à recevoir l'élément de liaison structurelle.A thermal insulation element is proposed for the implementation of the process for treating thermal bridges which has just been described and in which a lower portion of the block made of thermally insulating material comprises a tab which forms a longitudinal extension of said portion lower and which is intended to receive the structural connecting element.

Grâce à la forme particulière de l'élément d'isolation thermique, l'élément de liaison structurelle peut être simplement posé sur la patte ce qui facilite sa mise en place le long de la portion du mur. Ceci favorise encore davantage la mise en oeuvre du procédé de l'invention.Thanks to the particular shape of the thermal insulation element, the structural connection element can simply be placed on the bracket which facilitates its installation along the portion of the wall. This further promotes the implementation of the method of the invention.

En outre, la patte assure un meilleur traitement des ponts thermiques en étant agencée entre le mur et le plancher au niveau d'une zone de liaison rigide entre le plancher et le mur. Une telle patte permet d'assurer une continuité de l'isolation thermique en partie basse du plancher entre deux éléments d'isolation thermique séparés par l'élément de liaison structurelle reposant sur ladite patte.In addition, the tab ensures better treatment of thermal bridges by being arranged between the wall and the floor at the level of a rigid connection zone between the floor and the wall. Such a tab ensures continuity of the thermal insulation in the lower part of the floor between two thermal insulation elements separated by the structural connection element resting on said tab.

Il est proposé aussi un élément de liaison structurelle pour la mise en oeuvre du procédé de traitement de ponts thermiques qui vient d'être décrit et dans lequel le béton du bloc de l'élément de liaison structurelle est un béton à conductivité thermique inférieure à 1 watt par mètre-kelvin.A structural connection element is also proposed for the implementation of the thermal bridge treatment process which has just been described and in which the concrete of the block of the structural connection element is a concrete with lower thermal conductivity at 1 watt per meter-kelvin.

Ainsi, l'élément de liaison structurelle participe également activement à la réduction des ponts thermiques entre le mur et le plancher tout en remplissant sa fonction d'ancrage du plancher au mur.Thus, the structural connection element also actively participates in reducing thermal bridges between the wall and the floor while fulfilling its function of anchoring the floor to the wall.

Il est aussi proposé un élément de liaison structurelle pour la mise en oeuvre du procédé de traitement de ponts thermiques qui vient d'être décrit et dans lequel le béton du bloc de l'élément de liaison structurelle est un béton à très haute performance.A structural connection element is also proposed for implementing the thermal bridge treatment process which has just been described and in which the concrete of the block of the structural connection element is a very high performance concrete.

Ceci permet de renforcer le soutien structurel apporté au plancher par les éléments de liaison structurelle.This makes it possible to reinforce the structural support provided to the floor by the structural connection elements.

Il est proposé finalement une prédalle destinée à supporter le béton d'une dalle de compression pour constituer conjointement avec cette dalle de compression un plancher, la prédalle comportant un corps en béton et au moins un élément d'isolation thermique tel que précédemment cité solidarisé à un bord de ladite prédalle.Finally, a pre-slab intended to support the concrete of a compression slab is proposed to jointly constitute with this compression slab a floor, the pre-slab comprising a concrete body and at least one thermal insulation element as previously mentioned secured to an edge of said preslab.

Pour toute la présente demande, les termes « inférieur », « supérieur », « hauteur », « longueur » ... doivent être entendus par rapport à la position du plancher et de la portion de mur correspondant une fois qu'ils sont montés.For the entire present application, the terms “lower”, “upper”, “height”, “length” ... must be understood in relation to the position of the floor and the corresponding portion of wall once they are mounted .

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise à la lumière de la description qui suit de mises en oeuvre particulières, non limitatives de l'invention. Il sera fait référence aux figures ci-jointes, parmi lesquelles :

  • les figures 1 et 2 sont des vues en perspective de respectivement un élément d'isolation thermique et un élément de liaison structurelle pour une première mise en oeuvre du procédé selon l'invention,
  • les figures 3, 4 et 5 représentent schématiquement des étapes de la première mise en œuvre du procédé selon l'invention à l'aide des éléments illustrés aux figures 1 et 2,
  • la figure 6 est une vue en perspective d'un insert de la prédalle illustrée aux figures 3, 4 et 5,
  • la figure 7 est une vue en perspective d'un plancher et d'une portion de mur, avant le coulage de la dalle de compression du plancher, le plancher et la portion de mur étant isolés thermiquement par une variante d'une première mise en oeuvre du procédé selon l'invention,
  • la figure 8 est une vue en perspective d'un plancher et d'une portion de mur isolés thermiquement par une deuxième mise en œuvre du procédé selon l'invention,
  • la figure 9 est une vue en perspective d'un élément d'isolation thermique agencé entre le plancher et la portion du mur illustrés à la figure 8,
  • la figure 10 est une vue en perspective d'un élément de liaison structurelle agencé entre le plancher et la portion du mur illustrés à la figure 8,
  • la figure 11 est une vue en perspective d'un plancher et d'une portion de mur, avant le coulage de la dalle de compression du plancher, le plancher et le mur étant isolés thermiquement par une troisième mise en oeuvre du procédé selon l'invention,
  • la figure 12 est une vue en perspective d'un élément d'isolation thermique agencé entre le plancher et la portion du mur illustrés à la figure 11,
  • la figure 13 est une vue en perspective d'un élément d'isolation thermique agencé entre le plancher et la portion du mur illustrés à la figure 11,
  • la figure 14 est une vue en perspective d'un plancher et d'une portion de mur, avant le coulage de la dalle de compression du plancher, le plancher et la portion de mur étant isolés thermiquement par une quatrième mise en oeuvre du procédé selon l'invention.
The invention will be better understood in the light of the following description of particular, non-limiting implementations of the invention. Reference will be made to the attached figures, including:
  • THE figures 1 and 2 are perspective views of respectively a thermal insulation element and a structural connection element for a first implementation of the method according to the invention,
  • THE figures 3 , 4 And 5 schematically represent steps of the first implementation of the method according to the invention using the elements illustrated in figures 1 and 2 ,
  • there Figure 6 is a perspective view of an insert of the pre-slab illustrated in figures 3 , 4 And 5 ,
  • there Figure 7 is a perspective view of a floor and a portion of wall, before the pouring of the compression slab of the floor, the floor and the portion of wall being thermally insulated by a variant of a first implementation of the method according to the invention,
  • there figure 8 is a perspective view of a floor and a portion of a wall thermally insulated by a second implementation of the method according to the invention,
  • there Figure 9 is a perspective view of a thermal insulation element arranged between the floor and the portion of the wall illustrated in figure 8 ,
  • there Figure 10 is a perspective view of a structural connection element arranged between the floor and the portion of the wall illustrated in figure 8 ,
  • there Figure 11 is a perspective view of a floor and a portion of a wall, before the pouring of the compression slab of the floor, the floor and the wall being thermally insulated by a third implementation of the method according to the invention,
  • there Figure 12 is a perspective view of a thermal insulation element arranged between the floor and the portion of the wall illustrated in Figure 11 ,
  • there Figure 13 is a perspective view of a thermal insulation element arranged between the floor and the portion of the wall illustrated in Figure 11 ,
  • there Figure 14 is a perspective view of a floor and a portion of wall, before the pouring of the compression slab of the floor, the floor and the portion of wall being thermally insulated by a fourth implementation of the method according to the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence aux figures 1 à 6, le procédé selon une première mise en oeuvre de l'invention vise ici à traiter les ponts thermiques entre un plancher 1 et un mur 2 adjacent à l'une des rives non porteuse dudit plancher.With reference to figures 1 to 6 , the method according to a first implementation of the invention aims here to treat thermal bridges between a floor 1 and a wall 2 adjacent to one of the non-load-bearing edges of said floor.

Le procédé est mis en oeuvre au cours de la construction du bâtiment.The process is implemented during the construction of the building.

A cet effet, le mur 2 est monté jusqu'à sensiblement le niveau où le plancher 1 est destiné à être posé. De préférence, la partie supérieure de la portion de mur montée 3 présente un arrêt 4 qui permet une meilleure jonction avec la suite du mur 2 à construire comme nous le verrons par la suite.For this purpose, the wall 2 is mounted up to approximately the level where the floor 1 is intended to be laid. Preferably, the upper part of the mounted wall portion 3 has a stop 4 which allows a better connection with the rest of the wall 2 to be built as we will see later.

Des poutres P, soutenues par un ou plusieurs étais, sont alors positionnées contre la portion montée 3 du mur 2 de sorte à s'étendre à la normale de ladite portion montée 3 afin de servir de support à la construction du plancher 1.Beams P, supported by one or more props, are then positioned against the mounted portion 3 of the wall 2 so as to extend normal to said mounted portion 3 in order to serve as support for the construction of the floor 1.

Puis des prédalles (dont une seule est référencée 5 ici) sont successivement accolées les unes aux autres sur les poutres P pour délimiter la surface du plancher 1. L'un des bords longitudinaux 8 d'au moins l'une des prédalles 5, formant en partie l'une des rives non porteuse du plancher 1, longe ici la portion 3 du mur 2 considéré. La figure 3 illustre ainsi la portion déjà montée 3 du mur 2 et ladite prédalle 5. La prédalle 5 est montée de sorte que son bord longitudinal 8 s'étende le long de la portion montée 3 du mur 2 mais avec un décalage par rapport à ladite portion 3. Un espace est donc laissé entre la portion 3 et la prédalle 5.Then pre-slabs (only one of which is referenced 5 here) are successively joined to each other on the beams P to delimit the surface of the floor 1. One of the longitudinal edges 8 of at least one of the pre-slabs 5, forming partly one of the non-load-bearing edges of the floor 1, here runs along the portion 3 of the wall 2 considered. There Figure 3 thus illustrates the already mounted portion 3 of the wall 2 and said pre-slab 5. The pre-slab 5 is mounted so that its longitudinal edge 8 extends along the mounted portion 3 of the wall 2 but with an offset relative to said portion 3 A space is therefore left between portion 3 and pre-slab 5.

En référence à la figure 4, on agence alors le long dudit bord longitudinal 8 de ladite prédalle 5 des éléments d'isolation thermique 6 et des éléments de liaison structurelle 7 du plancher de sorte à agencer en alternance un élément d'isolation thermique 6 et un élément de liaison structurelle 7. On rapporte ainsi à proximité de la portion 3 du mur 2, le long de ladite portion 3 de mur 2, les différents éléments d'isolation thermique 6 et de liaison structurelle 7 sensiblement au niveau où une dalle de compression 9 du plancher 1 doit être coulée. Plus précisément ici, les différents éléments d'isolation thermique 6 et de liaison structurelle 7 sont agencés entre ledit bord longitudinal 8 de la prédalle 5 et la portion 3 du mur 2 au niveau de l'espace qui a été laissé lors de l'étape de montage des prédalles. De façon préférée, les différents éléments d'isolation thermique 6 et de liaison structurelle 7 sont agencés de sorte qu'une de leur face viennent en appui contre le mur 2 (lorsque celui-ci est complètement monté) et la face opposée correspondante viennent en appui contre le bord longitudinale 8 de la prédalle 5.In reference to the Figure 4 , thermal insulation elements 6 and connecting elements are then arranged along said longitudinal edge 8 of said pre-slab 5. structural 7 of the floor so as to alternately arrange a thermal insulation element 6 and a structural connection element 7. We thus report near the portion 3 of the wall 2, along said portion 3 of wall 2, the different thermal insulation elements 6 and structural connection 7 substantially at the level where a compression slab 9 of the floor 1 must be poured. More precisely here, the different thermal insulation elements 6 and structural connection 7 are arranged between said longitudinal edge 8 of the pre-slab 5 and the portion 3 of the wall 2 at the level of the space which was left during step assembly of the pre-slabs. Preferably, the different thermal insulation elements 6 and structural connection elements 7 are arranged so that one of their faces comes to rest against the wall 2 (when it is completely mounted) and the corresponding opposite face comes into contact. support against the longitudinal edge 8 of the preslab 5.

De préférence, on rapporte les différents éléments d'isolation thermique 6 et de liaison structurelle 7 de sorte à les accoler les uns aux autres le long de la portion 3 du mur 2. Lesdits éléments d'isolation thermique 6 et de liaison structurelle 7 forment ainsi une frontière entre la prédalle 5 et la portion 3 de mur 2 correspondante.Preferably, the different thermal insulation elements 6 and structural connection 7 are attached so as to attach them to each other along the portion 3 of the wall 2. Said thermal insulation elements 6 and structural connection 7 form thus a border between the preslab 5 and the corresponding portion 3 of wall 2.

Les différents éléments d'isolation thermique 6 et les différents éléments de liaison structurelle 7 sont tous des éléments indépendants les uns des autres ce qui facilite leur manipulation notamment pour les agencer entre le bord longitudinal 8 de la prédalle 5 et la portion 2 de mur 3 déjà construite.The different thermal insulation elements 6 and the different structural connection elements 7 are all elements independent of each other which facilitates their handling in particular to arrange them between the longitudinal edge 8 of the preslab 5 and the portion 2 of wall 3 already built.

Tous les éléments de liaison structurelle 7 sont ici identiques entre eux et tous les éléments d'isolation thermique 6 sont ici identiques entre eux. De la sorte, les différents éléments thermique 6 et de liaison structurelle 7 définissent ensemble une frontière entre la prédalle 5 et le mur 2, frontière continue et d'une même hauteur sur tout le long du bord longitudinal 8 de la prédalle 5 et donc sur tout le long du mur correspondant.All the structural connection elements 7 are here identical to each other and all the thermal insulation elements 6 are here identical to each other. In this way, the different thermal elements 6 and structural connection 7 together define a border between the pre-slab 5 and the wall 2, a continuous border of the same height along the entire length of the longitudinal edge 8 of the pre-slab 5 and therefore along the entire length of the corresponding wall.

De façon particulière, les différents éléments d'isolation thermique 6 sont solidarisés à la prédalle 5.In particular, the different thermal insulation elements 6 are secured to the pre-slab 5.

De préférence, la prédalle 5 comporte un corps en béton, par exemple en béton précontraint comprenant des câbles de précontrainte orientés longitudinalement et parallèlement les uns aux autres, et une bordure 10 ancrée dans ledit corps en béton de sorte à former un bord dudit corps. Les différents éléments d'isolation thermique 6 sont ici solidarisés à cette bordure 10 par emboîtement afin de dépasser de la face supérieure du corps en béton de la prédalle 5.Preferably, the preslab 5 comprises a concrete body, for example prestressed concrete comprising prestressing cables oriented longitudinally and parallel to each other, and an edge 10 anchored in said concrete body so as to form an edge of said body. The different thermal insulation elements 6 are here secured to this edge 10 by interlocking in order to protrude from the upper face of the concrete body of the preslab 5.

En référence à la figure 6, la bordure 10 est rectiligne et s'étend selon une droite X correspondant ici au bord longitudinal 8 de la prédalle 5 formant l'une des rives non porteuse du plancher 1.In reference to the Figure 6 , the border 10 is rectilinear and extends along a straight line

La bordure 10 comporte de façon préférée une structure alvéolée 11 en matière plastique qui comprend des cellules en relief s'étendant à partir de la structure 11 vers l'extérieur de la bordure en direction du corps de prédalle 5.The border 10 preferably comprises a honeycomb structure 11 made of plastic material which comprises raised cells extending from the structure 11 towards the outside of the border towards the pre-slab body 5.

La bordure 10 rectiligne s'avère donc non seulement flexible et souple mais également légère. Ceci facilite la manipulation de la bordure 10 et permet plus facilement de la solidariser au corps en béton de la prédalle 5. En outre, il s'avère possible de découper facilement la bordure 10 rectiligne pour en modifier la longueur selon les besoins de production. Ceci facilite encore une fois la fixation de la bordure 10 rectiligne à la prédalle 5.The rectilinear border 10 therefore proves not only flexible and supple but also light. This facilitates the handling of the border 10 and makes it easier to secure it to the concrete body of the pre-slab 5. In addition, it proves possible to easily cut the rectilinear border 10 to modify its length according to production needs. This once again facilitates the fixing of the rectilinear border 10 to the preslab 5.

Les différentes cellules sont ici ouvertes vers l'extérieur de la bordure 10 en direction du corps de la prédalle 5.The different cells are here open towards the outside of the border 10 towards the body of the predalle 5.

La structure 11 est par exemple en polypropylène.Structure 11 is for example made of polypropylene.

De façon particulière, la structure 11 comporte une première rangée 12 de cellules agencées côte à côte le long de la droite X (une des cellules de la première rangée étant symbolisée en pointillés et désignée par 13). Toutes les cellules de la première rangée 12 sont ici accolées. La structure 11 comporte une deuxième rangée de cellules 14 agencées côte à côte le long de la droite X et accolées deux à deux (une des cellules de la deuxième rangée 14 étant symbolisée en points-tirets et désignée par 15), chaque bloc de deux cellules accolées (un des blocs étant symbolisé en tirets et désigné par 16) étant séparé par un espace 17 du bloc suivant de deux cellules accolées. Grâce aux différents espaces, la structure 11 s'avère particulièrement flexible.In particular, the structure 11 comprises a first row 12 of cells arranged side by side along the straight line X (one of the cells of the first row being symbolized in dotted lines and designated by 13). All the cells of the first row 12 are joined here. The structure 11 comprises a second row of cells 14 arranged side by side along the straight line adjacent cells (one of the blocks being symbolized in dashes and designated by 16) being separated by a space 17 from the next block of two adjacent cells. Thanks to the different spaces, structure 11 proves to be particularly flexible.

La deuxième rangée de cellules 14 s'étend sous la première rangée de cellules 12 de sorte qu'une cellule de la deuxième rangée 14 se trouve dans le prolongement d'une cellule respective de la première rangée 12. La deuxième rangée de cellules 14 s'étend donc parallèlement à la première rangée de cellules 12.The second row of cells 14 extends under the first row of cells 12 so that a cell of the second row 14 is in the extension of a respective cell of the first row 12. The second row of cells 14 s therefore extends parallel to the first row of cells 12.

Ici, les cellules de la première rangée 12 sont toutes identiques entre elles et les cellules de la deuxième rangée 14 sont toutes identiques entre elles. De façon particulière, les cellules de la première rangée 12 et les cellules de la deuxième rangée 14 ont une même longueur (dimension prise le long de la droite X) et sensiblement une même largeur (dimension prise le long d'une droite Y perpendiculaire à la droite X et correspondant au relief des cellules). Les cellules de la deuxième rangée 14 ont ici une hauteur supérieure aux cellules de la première rangée 12 (dimension prise le long d'une droite Z perpendiculaire à la droite X et à la droite Y).Here, the cells of the first row 12 are all identical to each other and the cells of the second row 14 are all identical to each other. In particular, the cells of the first row 12 and the cells of the second row 14 have the same length (dimension taken along the straight line X) and substantially the same width (dimension taken along a straight line Y perpendicular to the line X and corresponding to the relief of the cells). The cells of the second row 14 here have a height greater than the cells of the first row 12 (dimension taken along a line Z perpendicular to the line X and to the line Y).

De la sorte, toutes les cellules de la structure 11 s'étendent à partir d'une même face principale de la structure 11. L'autre face principale de la structure 11 s'avère alors exempte de cellules et est donc sensiblement lisse.In this way, all the cells of the structure 11 extend from the same main face of the structure 11. The other main face of the structure 11 then turns out to be free of cells and is therefore substantially smooth.

La structure 11 comporte par exemple 29 cellules pour la première rangée 12 et 20 cellules pour la deuxième rangée 14.The structure 11 comprises for example 29 cells for the first row 12 and 20 cells for the second row 14.

De préférence, la structure 11 comporte des évidements 18 (dont une partie seulement est référencée) traversant la structure 11 dans sa largeur. Plus précisément ici un évidement 18 traverse la structure 11 au niveau de chacune des cellules de la deuxième rangée 14 et au niveau de chaque espace 17 séparant les blocs de deux cellules accolées. Les évidements 18 sont agencés en partie haute des cellules de la deuxième rangée 14 et des espaces 17 associés, sensiblement au niveau de la frontière entre la première rangée de cellules 12 et la deuxième rangée de cellule 14.Preferably, the structure 11 comprises recesses 18 (only part of which is referenced) passing through the structure 11 in its width. More precisely here a recess 18 passes through the structure 11 at the level of each of the cells of the second row 14 and at the level of each space 17 separating the blocks of two adjacent cells. The recesses 18 are arranged in the upper part of the cells of the second row 14 and the associated spaces 17, substantially at the level of the border between the first row of cells 12 and the second row of cells 14.

La portion supérieure de la structure 11 comporte des encoches de clipage 19 (dont une partie seulement est référencée) régulièrement réparties sur la longueur de la structure 11 pour l'emboîtement des éléments d'isolation thermique 6 sur la bordure 10. Les encoches de clipage 19 sont identiques. Les encoches de clipage 19 sont ici ménagées à la frontière entre la première rangée de cellules 12 et la deuxième rangée de cellule 14 par une inflexion dans les parois des cellules. A chaque frontière se trouve ici une encoche de clipage 19. Lorsque les éléments d'isolation thermique 6 sont en place sur la bordure 10, ils recouvrent donc la première rangée de cellules 12.The upper portion of the structure 11 comprises clipping notches 19 (only part of which is referenced) regularly distributed along the length of the structure 11 for nesting the thermal insulation elements 6 on the edge 10. The clipping notches 19 are identical. The clipping notches 19 are here provided at the border between the first row of cells 12 and the second row of cells 14 by an inflection in the walls of the cells. At each border there is here a clipping notch 19. When the thermal insulation elements 6 are in place on the border 10, they therefore cover the first row of cells 12.

De façon particulière, chaque encoche de clipage 19 est surmontée d'un bec antisalissure 20 (dont une partie seulement est référencée). Les becs antisalissure 20 sont tous identiques. Les becs antisalissure 20 sont ici ménagés dans les parois de la première rangée de cellules 12 de sorte à former une protubérance venant au-dessus des encoches de clipage 19. Les becs antisalissure 20 sont en outre configurés de sorte à être inclinés en direction de la portion basse de la structure 11.In particular, each clipping notch 19 is surmounted by an anti-fouling nozzle 20 (only part of which is referenced). The anti-fouling nozzles 20 are all identical. 20 anti-fouling nozzles are here formed in the walls of the first row of cells 12 so as to form a protuberance coming above the clipping notches 19. The anti-fouling nozzles 20 are also configured so as to be inclined towards the lower portion of the structure 11 .

La portion inférieure de la structure comporte ici des pieds d'ancrage 21. Les pieds 21 sont régulièrement répartis sur la longueur de la structure 11. Les pieds 21 sont identiques. Chaque pied 21 s'étend ici d'une portion inférieure de la structure 11 vers l'extérieur de la bordure 10 vers la portion inférieure du corps de la prédalle 5. Chaque pied 21 s'étend dans le prolongement de l'une des parois communes à deux cellules accolées de la deuxième rangée 14 (soit une paroi de normale la droite X). La structure 1 comporte ici un pied 21 au niveau de chaque bloc de deux cellules accolées. La structure 11 comporte par exemple dix pieds.The lower portion of the structure here comprises anchoring feet 21. The feet 21 are regularly distributed along the length of the structure 11. The feet 21 are identical. Each foot 21 extends here from a lower portion of the structure 11 towards the outside of the border 10 towards the lower portion of the body of the preslab 5. Each foot 21 extends in the extension of one of the walls common to two adjacent cells of the second row 14 (i.e. a wall normal to the line X). Structure 1 here includes a foot 21 at the level of each block of two adjacent cells. Structure 11 has for example ten feet.

De façon particulière, la structure 11 comporte deux ailes 22 associées à chaque pied 21. Chaque aile 22 s'étend transversalement au pied 21 associé entre une partie basse du pied 21 à la deuxième rangée de cellule 14. Plus précisément, chaque aile 22 s'étend de la partie basse du pied 21 jusqu'à la paroi extérieure du bloc de deux cellules accolées correspondant audit pied 21, paroi extérieure parallèle à la paroi commune aux deux cellules accolées dudit bloc.In particular, the structure 11 comprises two wings 22 associated with each foot 21. Each wing 22 extends transversely to the foot 21 associated between a lower part of the foot 21 with the second row of cells 14. More precisely, each wing 22 s 'extends from the lower part of the foot 21 to the exterior wall of the block of two adjoining cells corresponding to said foot 21, exterior wall parallel to the wall common to the two adjoining cells of said block.

Ici, la portion inférieure de la structure 11 comporte au moins une languette de positionnement 23 de la bordure 10. Plus précisément, chaque languette de positionnement 23 est agencée de sorte à s'étendre à la normale de la structure 11 vers l'extérieur de la bordure 10 dans le prolongement des cellules, dans le sens de la largeur de la structure 11 (soit donc ici de sorte à s'étendre selon la droite Z en direction du corps de la prédalle 2).Here, the lower portion of the structure 11 comprises at least one positioning tab 23 of the edge 10. More precisely, each positioning tab 23 is arranged so as to extend normal to the structure 11 towards the outside of the border 10 in the extension of the cells, in the direction of the width of the structure 11 (i.e. here so as to extend along the straight line Z towards the body of the preslab 2).

La structure comporte ici plusieurs languettes de positionnement 23. Par exemple, la structure 11 comporte deux languettes de positionnement 23.The structure here comprises several positioning tabs 23. For example, the structure 11 comprises two positioning tabs 23.

Les languettes de positionnement 23 sont identiques, s'étendent à partir du même niveau de la portion inférieure et sont réparties sur la longueur de la structure 11. Chaque languette de positionnement 23 s'étend ici à partir de la portion inférieure de l'un des espaces 17 séparant deux blocs de cellules accolées.The positioning tabs 23 are identical, extend from the same level of the lower portion and are distributed over the length of the structure 11. Each positioning tab 23 extends here from the lower portion of one spaces 17 separating two blocks of adjacent cells.

Les deux extrémités longitudinales (selon l'axe X) de la structure 11 comportent respectivement des moyens d'encliquetage mâle 41 et des moyens d'encliquetage femelle 42 par exemple de type tenon/mortaise. De la sorte, il s'avère possible d'emboîter très simplement les uns à la suite des autres plusieurs bordures 10 en encliquetant les moyens d'encliquetage femelle 42 avec les moyens d'encliquetage mâle 41 de deux bordures 10 consécutives.The two longitudinal ends (along the axis In this way, it turns out to be possible to very simply fit several edges 10 one after the other by snapping into place the female latching means 42 with the male latching means 41 of two consecutive edges 10.

De façon particulière, la bordure 10 comporte un aimant (non visible ici) qui est agencé sur la face principale de la structure 11 opposée de celle à partir de laquelle s'étendent les cellules. L'aimant est agencé de sorte à saillir du reste de ladite face principale. Plus précisément ici, l'aimant est agencé en-dessous des différents évidements 18 de la structure 11.In particular, the border 10 comprises a magnet (not visible here) which is arranged on the main face of the structure 11 opposite that from which the cells extend. The magnet is arranged so as to project from the rest of said main face. More precisely here, the magnet is arranged below the different recesses 18 of the structure 11.

De préférence, l'aimant se présente sous la forme d'une bande. L'aimant est agencé de sorte à s'étendre selon la droite X. L'aimant permet ainsi de bien couvrir toute la longueur de la structure 11.Preferably, the magnet is in the form of a strip. The magnet is arranged so as to extend along the line X. The magnet thus makes it possible to cover the entire length of the structure 11.

La bordure 10 qui vient d'être décrite est de façon préférée fabriquée par injection. La bordure 10 s'avère donc simple et rapide à fabriquer.The border 10 which has just been described is preferably manufactured by injection. The border 10 therefore turns out to be simple and quick to manufacture.

De façon particulière, la bordure 10 est fabriquée en deux étapes :

  • au cours d'une première étape, l'aimant est rapporté dans un moule d'injection de la structure 11,
  • au cours de la deuxième étape, la structure 11 est formée et l'aimant est simultanément surmoulé sur la structure 11 de sorte que l'aimant et la structure 11 forment un tout-rigide.
In particular, the border 10 is manufactured in two stages:
  • during a first step, the magnet is reported in an injection mold of structure 11,
  • during the second step, the structure 11 is formed and the magnet is simultaneously overmolded on the structure 11 so that the magnet and the structure 11 form an all-rigid structure.

Typiquement pour fixer la bordure 10 à la prédalle 5, la bordure 10 est installée dans un moule de fabrication du corps de la prédalle 5 en étant positionnée le long de l'une des rives longitudinales de ce moule.Typically to fix the border 10 to the pre-slab 5, the border 10 is installed in a mold for manufacturing the body of the pre-slab 5 while being positioned along one of the longitudinal edges of this mold.

Les pieds 21 viennent alors reposer sur un fond du moule de fabrication. Les pieds 21 permettent à un opérateur de positionner correctement de façon aisée et rapide la bordure 10 dans le moule de fabrication en servant de point de repérage.The feet 21 then come to rest on a bottom of the manufacturing mold. The feet 21 allow an operator to correctly and easily and quickly position the border 10 in the manufacturing mold by serving as a reference point.

De même, chaque languette de positionnement 23 est positionnée dans le moule de fabrication de sorte à s'étendre juste sous les câbles de précontrainte agencés dans le moule de fabrication pour être solidarisés au corps de la prédalle 5. Les languettes de positionnement 23 jouent ainsi également le rôle de point de repérage pour l'opérateur.Likewise, each positioning tab 23 is positioned in the manufacturing mold so as to extend just under the prestressing cables arranged in the manufacturing mold to be secured to the body of the pre-slab 5. The positioning tabs 23 thus act also the role of reference point for the operator.

Il s'avère donc très simple de positionner la bordure 10 dans le moule de fabrication et de vérifier le bon positionnement de celle-ci en repérant simplement si les câbles de précontrainte sont bien au-dessus des languettes de positionnement 23 et si les pieds 21 reposent bien sur le fond du moule de fabrication.It therefore turns out to be very simple to position the edge 10 in the manufacturing mold and to check the correct positioning of the latter by simply locating whether the prestressing cables are well above the positioning tabs 23 and whether the feet 21 rest well on the bottom of the manufacturing mold.

Le béton est ensuite coulé dans le moule de fabrication pour former le corps de la prédalle 5.The concrete is then poured into the manufacturing mold to form the body of the pre-slab 5.

Les becs antisalissure 20 permettent de protéger les encoches de clipage 19 lors du coulage du corps de la prédalle 5 et notamment du béton qui pourrait accidentellement être projeté vers lesdites encoches de clipage 19. On évite ainsi que du béton ne se fige dans les encoches de clipage 19 ce qui serait préjudiciable pour un emboîtement ultérieur des éléments d'isolation thermique 6 sur ladite bordure 10.The anti-fouling nozzles 20 make it possible to protect the clipping notches 19 during the pouring of the body of the preslab 5 and in particular from the concrete which could accidentally be projected towards said clipping notches 19. This prevents concrete from freezing in the notches of clipping 19 which would be detrimental for interlocking subsequent thermal insulation elements 6 on said edge 10.

De façon avantageuse, les évidements 18 permettent d'assurer un équilibrage des pressions subies par la bordure 10 lors du coulage du béton. Les évidements 18 sont bien entendu agencés de sorte à se trouver agencés à une hauteur de la structure 11 supérieure à la hauteur du corps de la prédalle 5 afin que du béton ne puisse pénétrer par les évidements 18 entre le moule de fabrication et la bordure 10.Advantageously, the recesses 18 make it possible to ensure balancing of the pressures experienced by the edge 10 during the pouring of the concrete. The recesses 18 are of course arranged so as to be arranged at a height of the structure 11 greater than the height of the body of the pre-slab 5 so that concrete cannot penetrate through the recesses 18 between the manufacturing mold and the edge 10 .

Par ailleurs, l'aimant permet tout à la fois de positionner la bordure 10 dans le moule de fabrication, au même titre que les pieds 21 ou les languettes de positionnement 23, mais également de maintenir la bordure 10 en position, même pendant le coulage du béton, en la plaquant contre la rive associée.Furthermore, the magnet makes it possible both to position the border 10 in the manufacturing mold, in the same way as the feet 21 or the positioning tabs 23, but also to maintain the border 10 in position, even during casting. concrete, pressing it against the associated edge.

En effet, lorsque la bordure 10 est agencée dans le moule de fabrication, l'aimant permet de bien plaquer la bordure 10 contre la rive en adhérant au moule de fabrication. Ceci évite l'infiltration du béton entre la bordure 10 et le moule de fabrication au niveau de la portion supérieure de la bordure 10 lors du coulage du corps ce qui pourrait gêner un emboîtement ultérieur des éléments d'isolation thermique 6 sur ladite bordure 10.Indeed, when the border 10 is arranged in the manufacturing mold, the magnet allows the border 10 to be firmly pressed against the edge while adhering to the manufacturing mold. This avoids the infiltration of concrete between the border 10 and the manufacturing mold at the level of the upper portion of the border 10 during the casting of the body, which could hinder subsequent nesting of the thermal insulation elements 6 on said border 10.

De par sa forme allongée, l'aimant permet en outre de bien couvrir toute la longueur de la structure et donc de bien plaquer toute la bordure 10 contre le moule de fabrication.Due to its elongated shape, the magnet also makes it possible to cover the entire length of the structure and therefore to press the entire edge 10 firmly against the manufacturing mold.

Bien entendu, la bordure 10 est conformée de sorte à pouvoir épouser la forme du moule de fabrication afin que son plaquage par l'aimant s'avère possible. Dans le cas d'un chanfrein entre le fond du moule et les parois latérales du moule, les pieds 21 sont ainsi inclinés par rapport au reste de la structure 11 pour pouvoir épouser l'inclinaison dudit chanfrein.Of course, the edge 10 is shaped so as to be able to match the shape of the manufacturing mold so that its plating by the magnet proves possible. In the case of a chamfer between the bottom of the mold and the side walls of the mold, the feet 21 are thus inclined relative to the rest of the structure 11 to be able to match the inclination of said chamfer.

Une fois que le béton a été coulé et a terminé de prendre, la bordure 10 se retrouve alors rigidement solidarisée au corps de prédalle 5 de sorte à former avec celui-ci un tout-rigide. La prédalle 5 peut alors être retirée du moule de fabrication.Once the concrete has been poured and has finished setting, the edge 10 then finds itself rigidly attached to the pre-slab body 5 so as to form an all-rigid structure with it. The pre-slab 5 can then be removed from the manufacturing mold.

De la sorte, on solidarise facilement et rapidement la bordure 10 au corps de la prédalle 5 par surmoulage durant la fabrication dudit corps.In this way, the edge 10 is easily and quickly joined to the body of the pre-slab 5 by overmolding during the manufacture of said body.

En référence à la figure 3, la bordure 10 est donc rigidement solidarisée au corps en béton de la prédalle 5 en étant ancrée dans celui-ci. La portion inférieure de la bordure 10, correspondant à celle de la structure 11 et s'étendant ici des pieds 21 jusqu'à sensiblement le niveau des évidements 18 sans toutefois atteindre celui-ci, se trouve enrobée dans le béton du corps de prédalle 5.In reference to the Figure 3 , the edge 10 is therefore rigidly secured to the concrete body of the preslab 5 by being anchored therein. The lower portion of the edge 10, corresponding to that of the structure 11 and extending here from the feet 21 to substantially the level of the recesses 18 without however reaching this, is coated in the concrete of the preslab body 5 .

La bordure 10 est ainsi agencée de sorte que les cellules s'étendent vers l'intérieur de la prédalle 5. Une partie des cellules se retrouvent donc partiellement noyées dans le béton du corps de prédalle 5. La face principale lisse de la bordure 10 forme la surface libre de la prédalle 5 et donc le bord longitudinal 8 de la prédalle 5.The border 10 is thus arranged so that the cells extend towards the inside of the pre-slab 5. A part of the cells are therefore partially embedded in the concrete of the pre-slab body 5. The smooth main face of the border 10 forms the free surface of the pre-slab 5 and therefore the longitudinal edge 8 of the pre-slab 5.

La portion supérieure de la structure 11, correspondant à celle de la bordure 10, dépasse donc de la face supérieure du corps de prédalle 5. Les éléments d'isolation thermique 6 peuvent alors être emboîtés sur ladite portion supérieure.The upper portion of the structure 11, corresponding to that of the edge 10, therefore protrudes from the upper face of the pre-slab body 5. The thermal insulation elements 6 can then be fitted onto said upper portion.

En référence à la figure 1, l'un de ces éléments d'isolation thermique 6 selon la première mise en oeuvre de l'invention va être à présent décrit.In reference to the figure 1 , one of these thermal insulation elements 6 according to the first implementation of the invention will now be described.

L'élément d'isolation thermique 6 comporte un bloc en matériau isolant thermiquement. Ledit bloc est par exemple en laine minérale.The thermal insulation element 6 comprises a block of thermally insulating material. Said block is for example made of mineral wool.

Une portion inférieure dudit bloc comporte une patte 50 (ou languette) formant une extension longitudinale du bloc. La patte 50 est venue de matière avec le reste du bloc.A lower portion of said block comprises a tab 50 (or tongue) forming a longitudinal extension of the block. Leg 50 came as one piece with the rest of the block.

Le bloc a donc grossièrement une forme de L avec une partie principale 24 de forme sensiblement parallélépipédique et une partie secondaire formée de l'extension longitudinale 50.The block therefore has roughly an L shape with a main part 24 of substantially parallelepiped shape and a secondary part formed of the longitudinal extension 50.

La patte 50 présente donc une hauteur inférieure à la hauteur de la partie principale 24. La patte 50 a une largeur identique à celle de la partie principale 24. La patte 50 a ici une longueur inférieure à la longueur de la partie principale 24. Par exemple, la patte 50 à une longueur comprise entre 20 et 40 centimètres et la partie principale 24 a une longueur comprise entre 70 et 110 centimètres.The tab 50 therefore has a height less than the height of the main part 24. The tab 50 has a width identical to that of the main part 24. The tab 50 here has a length less than the length of the main part 24. By example, the tab 50 has a length of between 20 and 40 centimeters and the main part 24 has a length of between 70 and 110 centimeters.

La partie principale 24 a une hauteur sensiblement égale ici à la hauteur totale du plancher 1. De la sorte, lorsque l'élément d'isolation thermique 6 est emboîté sur la bordure 10, la face supérieure de l'élément d'isolation thermique 6 est à hauteur sensiblement de la dalle de compression 9 coulée sur la prédalle 5 comme nous le verrons par la suite.The main part 24 has a height substantially equal here to the total height of the floor 1. In this way, when the thermal insulation element 6 is fitted onto the edge 10, the upper face of the thermal insulation element 6 is at substantially the height of the compression slab 9 cast on the pre-slab 5 as we will see later.

De façon préférée, la patte 50 est configurée de sorte à présenter une hauteur égale à la hauteur du corps de la prédalle 5.Preferably, the tab 50 is configured so as to have a height equal to the height of the body of the preslab 5.

De préférence, l'élément d'isolation thermique 6 comporte une plaque 25, le bloc en matériau isolant thermiquement étant solidarisé à ladite plaque 25. A cet effet, l'élément d'isolation thermique 6 comporte deux sangles 26 entourant conjointement la partie principale 24 du bloc en matériau isolant thermiquement et la plaque 25 de sorte à fixer ledit bloc à ladite plaque 25.Preferably, the thermal insulation element 6 comprises a plate 25, the block of thermally insulating material being secured to said plate 25. For this purpose, the thermal insulation element 6 comprises two straps 26 jointly surrounding the main part 24 of the block made of thermally insulating material and the plate 25 so as to fix said block to said plate 25.

La plaque 25 est par exemple en métal. Typiquement la plaque 25 est en acier.Plate 25 is for example made of metal. Typically plate 25 is made of steel.

De préférence, la plaque 25 a une forme sensiblement identique à celle du bloc en matériau isolant thermiquement pour épouser les contours dudit bloc lorsqu'ils sont solidarisés ensemble.Preferably, the plate 25 has a shape substantially identical to that of the block made of thermally insulating material to match the contours of said block when they are secured together.

La plaque 25 porte ici des moyens d'encliquetage 27 aptes à coopérer avec des moyens d'encliquetage correspondants (ici les encoches de clipage 19) de la bordure 10 de la prédalle 5 pour l'emboîtement de l'élément d'isolation thermique 6 sur ladite bordure 10. Les moyens d'encliquetage 27 de l'élément d'isolation thermique sont ici visés à la plaque 25. Lesdits moyens d'encliquetage 27 comportent ici deux doigts légèrement élastiquement déformables comprenant chacun une portion d'accroche conformée en Z, un des bords du Z venant s'encliqueter dans deux encoches de clipage 19 successives de la bordure 10 pour solidariser l'élément d'isolation thermique 6 à la prédalle 5.The plate 25 here carries latching means 27 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for nesting the thermal insulation element 6 on said edge 10. The latching means 27 of the thermal insulation element are here aimed at the plate 25. Said latching means 27 here comprise two slightly elastically deformable fingers each comprising a Z-shaped gripping portion , one of the edges of the Z snaps into two successive clipping notches 19 of the edge 10 to secure the thermal insulation element 6 to the pre-slab 5.

En référence à la figure 2, l'un des éléments de liaison structurelle 7 selon la première mise en oeuvre de l'invention va être à présent décrit.In reference to the figure 2 , one of the structural connection elements 7 according to the first implementation of the invention will now be described.

L'élément de liaison structurelle 7 comporte un bloc 28 en béton comportant des armatures 29 traversant ledit bloc de sorte à être saillantes de part et d'autre du bloc 28.The structural connecting element 7 comprises a concrete block 28 comprising reinforcements 29 passing through said block so as to protrude on either side of the block 28.

Les armatures 29 sont noyées dans le béton du bloc 28 de l'élément de liaison structurelle 7 de sorte que les armatures 29 et ledit bloc 28 forment un tout-rigide. Les armatures 29 sont par exemple en acier. De préférence, le bloc 28 de l'élément de liaison structurelle 7 est configuré pour être posé sur la patte 50 de l'un des éléments d'isolation thermique 6. Ainsi, le bloc 28 de l'élément de liaison structurelle 7 est ici conformé en un parallélépipède rectangle de même largeur et de même longueur que la patte 50 correspondante. Le bloc 28 de l'élément de liaison structurelle 7 a une hauteur telle que la somme de la hauteur du bloc 28 de l'élément de liaison structurelle 7 et de la hauteur de la patte 50 correspond sensiblement à la hauteur de la partie principale 24 du bloc en matériau isolant thermiquement de l'élément d'isolation thermique 6 associé.The reinforcements 29 are embedded in the concrete of the block 28 of the structural connection element 7 so that the reinforcements 29 and said block 28 form an all-rigid structure. The frames 29 are for example made of steel. Preferably, the block 28 of the structural connection element 7 is configured to be placed on the tab 50 of one of the thermal insulation elements 6. Thus, the block 28 of the structural connection element 7 is here shaped into a rectangular parallelepiped of the same width and the same length as the corresponding tab 50. The block 28 of the structural connection element 7 has a height such that the sum of the height of the block 28 of the element structural connection 7 and the height of the tab 50 corresponds substantially to the height of the main part 24 of the block of thermally insulating material of the associated thermal insulation element 6.

L'élément de liaison structurelle 7 est donc configuré de sorte que la somme de la hauteur du bloc 28 dudit élément de liaison structurelle 7 et de la hauteur de la patte 50 associée est égale a sensiblement la hauteur totale du plancher 1.The structural connection element 7 is therefore configured so that the sum of the height of the block 28 of said structural connection element 7 and the height of the associated tab 50 is substantially equal to the total height of the floor 1.

De la sorte, lorsque l'élément de liaison structurelle 7 est posé sur la patte 50 de l'élément d'isolation thermique 6 associé, la face supérieure de l'élément de liaison structurelle 7 est à hauteur sensiblement de la dalle de compression 9 coulée sur la prédalle 5 comme nous le verrons par la suite.In this way, when the structural connection element 7 is placed on the tab 50 of the associated thermal insulation element 6, the upper face of the structural connection element 7 is at substantially the height of the compression slab 9 cast on preslab 5 as we will see later.

Les armatures 29 sont quant à elles bien entendu agencées de sorte à être à une hauteur supérieure à celle de la bordure 10 ancrée dans le corps de la prédalle 5, lorsque l'élément de liaison structurelle 7 est posé sur la patte 50, pour s'étendre d'un côté en direction de la prédalle 5 au-dessus de la prédalle 5 et de l'autre côté en direction du mur 2 au-dessus d'au moins une partie de la portion 3 du mur 2 déjà construite.The reinforcements 29 are for their part of course arranged so as to be at a height greater than that of the edge 10 anchored in the body of the preslab 5, when the structural connecting element 7 is placed on the tab 50, for s extend on one side towards the pre-slab 5 above the pre-slab 5 and on the other side towards the wall 2 above at least part of the portion 3 of the wall 2 already constructed.

De façon préférée, le béton du bloc 28 de l'élément de liaison structurelle 7 est un béton ayant une conductivité thermique inférieure à 1 watt par mètre-kelvin. Le béton du bloc 28 de l'élément de liaison structurelle 7 présente donc une conductivité thermique réduite. De la sorte, l'élément de liaison structurelle 7 participe également activement au traitement des ponts thermiques pouvant se former entre le mur 2 et le plancher 1.Preferably, the concrete of the block 28 of the structural connecting element 7 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin. The concrete of block 28 of structural connecting element 7 therefore has reduced thermal conductivity. In this way, the structural connection element 7 also actively participates in the treatment of thermal bridges that may form between the wall 2 and the floor 1.

Ici, le béton du bloc 28 de l'élément de liaison structurelle 7 est un béton à conductivité thermique inférieure à 0.6 watt par mètre-kelvin ce qui renforce encore davantage le traitement des ponts thermiques par l'élément de liaison structurelle 7. Par exemple, on utilise comme béton du béton Thermédia (marque déposée par la société Lafarge).Here, the concrete of block 28 of the structural connecting element 7 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces further treatment of thermal bridges by the structural connection element 7. For example, Thermédia concrete (registered trademark of the Lafarge company) is used as concrete.

De la sorte, en référence à la figure 4, lorsque l'opérateur souhaite agencer les éléments d'isolation thermique 6 et les éléments de liaison structurelle 7 le long de la portion 2 du mur 3, il effectue successivement les étapes suivantes :

  • emboîtement d'un élément d'isolation thermique 6 tel que précédemment décrit sur la bordure 10 de la prédalle 5, la patte 50 de l'élément d'isolation thermique définissant alors l'espace séparant les deux parties principales 24 de deux éléments d'isolation thermique consécutifs,
  • dépose d'un élément de liaison structurelle 7 tel que précédemment décrit sur la patte de l'un des éléments d'isolation thermique de sorte que les armatures 29 en saillie d'un côté de l'élément de liaison structurelle 7 soient positionnées au-dessus d'au moins une partie de la portion 2 du mur 3 et que les armatures 29 en saillie de l'autre côté de l'élément de liaison structurelle 7 soient positionnées au-dessus du corps en béton de la prédalle 5.
In this way, with reference to the Figure 4 , when the operator wishes to arrange the thermal insulation elements 6 and the structural connection elements 7 along the portion 2 of the wall 3, he successively carries out the following steps:
  • nesting of a thermal insulation element 6 as previously described on the edge 10 of the pre-slab 5, the tab 50 of the thermal insulation element then defining the space separating the two main parts 24 of two elements of consecutive thermal insulation,
  • removal of a structural connecting element 7 as previously described on the tab of one of the thermal insulation elements so that the reinforcements 29 projecting from one side of the structural connecting element 7 are positioned au- above at least part of portion 2 of wall 3 and that the reinforcements 29 projecting from the other side of the structural connecting element 7 are positioned above the concrete body of the preslab 5.

On note que contrairement aux éléments d'isolation thermique 6, les éléments de liaison structurelle 7 ne sont pas solidarisés à la prédalle 5 mais seulement posés le long du bord longitudinal 8 de la prédalle 5.Note that unlike the thermal insulation elements 6, the structural connection elements 7 are not secured to the pre-slab 5 but only placed along the longitudinal edge 8 of the pre-slab 5.

Il s'avère donc très simple pour un opérateur d'agencer les différents éléments d'isolation thermique 6 et de liaison structurelle 7 le long du mur 2 tout en s'assurant de leur bon positionnement puisqu'il suffit à l'opérateur d'emboîter un élément d'isolation thermique 6 sur la bordure 10 déjà en place sur la prédalle 5 puis de poser un élément de liaison structurelle 7 sur la patte de l'élément d'isolation thermique 6 déjà en place également.It therefore turns out to be very simple for an operator to arrange the different thermal insulation elements 6 and structural connection elements 7 along the wall 2 while ensuring their correct positioning since the operator only needs to fit a thermal insulation element 6 onto the edge 10 already in place on the pre-slab 5 then place a structural connection element 7 on the tab of the thermal insulation element 6 already in place as well.

De façon avantageuse, les éléments d'isolation thermique 6, les éléments de liaison structurelle 7 et la bordure 10 constituent ensemble une portion de coffrage d'une dalle de compression 9 destinée à être coulée sur la prédalle 5. La mise en oeuvre du coffrage de la dalle de compression 9 s'avère très simple grâce à l'invention par simple encliquetage des éléments d'isolation thermique 6 sur la bordure 10 de la prédalle 5. L'accolement des différents blocs entre eux permet d'assurer un bon coffrage de la dalle de compression 9.Advantageously, the thermal insulation elements 6, the structural connection elements 7 and the edge 10 together constitute a formwork portion of a compression slab 9 intended to be cast on the pre-slab 5. Implementation of the formwork of the compression slab 9 turns out to be very simple thanks to the invention by simply snapping the thermal insulation elements 6 onto the edge 10 of the pre-slab 5. The joining of the different blocks together ensures good formwork of the compression slab 9.

Dès lors, en référence à la figure 5, il ne reste plus qu'à former la dalle de compression 9 en coulant du béton sur la prédalle 5 de sorte que les armatures 29 en saillie de l'élément de liaison structurelle 7 s'étendant au-dessus de la prédalle 5 se retrouvent noyées dans le béton. La dalle de compression 9 est coulée de sorte à venir à hauteur des différents éléments de liaison structurelle 7 et d'isolation thermique 6 longeant le mur 2.Therefore, with reference to the Figure 5 , all that remains is to form the compression slab 9 by pouring concrete onto the pre-slab 5 so that the reinforcements 29 projecting from the structural connecting element 7 extending above the pre-slab 5 are found embedded in concrete. The compression slab 9 is cast so as to come at the height of the various structural connection elements 7 and thermal insulation 6 running along the wall 2.

Du béton est également coulé au-dessus de la portion 3 de mur 2 déjà existante pour continuer la construction du mur 2 de sorte que les armatures 29 en saillie de l'autre côté de l'élément de liaison structurelle 7 (et qui s'étendent au-dessus de la portion 2 du mur 3 déjà construite) se retrouvent également noyées dans le béton.Concrete is also poured above the already existing portion 3 of wall 2 to continue the construction of wall 2 so that the reinforcements 29 project from the other side of the structural connecting element 7 (and which are extend above portion 2 of wall 3 already constructed) are also found buried in concrete.

Les armatures 29 se retrouvent ainsi ancrées d'un côté dans le plancher 1 et de l'autre côté dans le mur 2 ce qui assure la portance du plancher 1.The frames 29 are thus anchored on one side in the floor 1 and on the other side in the wall 2 which ensures the load-bearing capacity of the floor 1.

Par ailleurs, les ponts thermiques susceptibles de se former entre le plancher 1 et le mur 2 sont très limités puisque les éléments d'isolation thermique 6 forment une barrière d'isolation thermique entre le plancher 1 et le mur 2 en étant agencés entre le plancher 1 et le mur 2 sur sensiblement toute la hauteur du plancher 1 (comme bien visibles aux figures 4 et 5). De plus, les ponts thermiques sont encore davantage limités par la présence de la patte 50 d'une hauteur sensiblement également à la hauteur de la prédalle 5 participant à la formation d'une barrière d'isolation thermique continue entre le plancher 1 et le mur 2 : toute la portion inférieure du plancher 1 (correspondant sensiblement à la hauteur de la prédalle 5) se retrouve ainsi isolée thermiquement du mur 2. En outre, les ponts thermiques sont encore davantage limités du fait de l'utilisation d'un béton particulier pour les éléments de liaison structurelle 7, béton qui est bien plus isolant thermiquement que les bétons traditionnellement utilisés dans le domaine des bâtiments et qui ont une conductivité thermique d'au moins 2 watt par mètre-kelvin. Les éléments de liaison structurelle 7 participent ainsi également à la formation d'une barrière d'isolation thermique entre le plancher 1 et mur 2.Furthermore, the thermal bridges likely to form between the floor 1 and the wall 2 are very limited since the thermal insulation elements 6 form a thermal insulation barrier between the floor 1 and the wall 2 being arranged between the floor 1 and the wall 2 over substantially the entire height of the floor 1 (as clearly visible in the figures 4 And 5 ). In addition, the thermal bridges are further limited by the presence of the tab 50 of a height substantially also at the height of the pre-slab 5 participating in the formation of a continuous thermal insulation barrier between the floor 1 and the wall 2: the entire lower portion of the floor 1 (corresponding substantially to the height of the pre-slab 5) is thus thermally insulated from the wall 2. In addition, the thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 7, concrete which is much more thermally insulating than the concretes traditionally used in the field of buildings and which have a thermal conductivity of at least 2 watt per meter-kelvin. The structural connection elements 7 thus also participate in the formation of a thermal insulation barrier between the floor 1 and wall 2.

Les ponts thermiques susceptibles de se former entre le plancher 1 et le mur 2 s'avèrent donc extrêmement réduits ici sur tout le long du mur 2 considéré et sur toute la hauteur du plancher 1.The thermal bridges likely to form between floor 1 and wall 2 are therefore extremely reduced here along the entire length of wall 2 considered and over the entire height of floor 1.

Par ailleurs, l'accolement des différents éléments de liaison structurelle 7 et d'isolation thermique 6 permet à la fois d'assurer une bonne isolation thermique du plancher 1 au niveau du mur 2 et à la fois d'assurer une bonne portance du plancher 1.Furthermore, the joining of the various structural connection elements 7 and thermal insulation elements 6 makes it possible both to ensure good thermal insulation of the floor 1 at the level of the wall 2 and at the same time to ensure good load-bearing capacity of the floor 1.

En outre, l'utilisation de la laine minérale pour les blocs des éléments d'isolation thermique 6 permet, en plus de la fonction d'isolation thermique, de remplir une fonction supplémentaire de protection contre les incendies ainsi qu'une fonction supplémentaire d'isolation acoustique. Il convient de noter que la présence de la patte 50 sur les éléments d'isolation thermique 6 permet d'améliorer ces fonctions de protection incendie et d'isolation acoustique au niveau de la portion inférieure du plancher 1.Furthermore, the use of mineral wool for the blocks of the thermal insulation elements 6 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 50 on the thermal insulation elements 6 makes it possible to improve these fire protection and sound insulation functions at the level of the lower portion of the floor 1.

De plus, de par le fait que les éléments d'isolation thermique 6 soient solidarisés par emboîtement à la bordure 10 et que les éléments de liaison structurelle 7 soient positionnés sur les pattes 50 des éléments d'isolation thermique 6, il est possible de s'affranchir d'un support de lisse classique de l'art antérieur relativement volumineux. Un simple soutien par poutre de la prédalle 5 suffit ici.Furthermore, due to the fact that the thermal insulation elements 6 are secured by nesting to the edge 10 and that the structural connection elements 7 are positioned on the legs 50 of the thermal insulation elements 6, it is possible to 'free from a conventional smooth support of the relatively bulky prior art. A simple support by beam of the pre-slab 5 is sufficient here.

Une première mise en oeuvre non limitative du procédé selon l'invention vient d'être décrite. La figure 7 illustre une variante de cette première mise en oeuvre.A first non-limiting implementation of the method according to the invention has just been described. There Figure 7 illustrates a variant of this first implementation.

Dans cette variante, les différents éléments d'isolation thermique 6 ne sont cette fois pas pourvus d'une patte. Mis à part l'absence de patte, les différents éléments d'isolation thermique 6 s'avèrent identiques à ceux précédemment décrits.In this variant, the different thermal insulation elements 6 are this time not provided with a tab. Apart from the absence of a tab, the different thermal insulation elements 6 are identical to those previously described.

Ainsi, l'élément d'isolation thermique 6 comporte un bloc 30 en matériau isolant thermiquement. Ledit bloc 30 est par exemple en laine minérale.Thus, the thermal insulation element 6 comprises a block 30 of thermally insulating material. Said block 30 is for example made of mineral wool.

Le bloc 30 a donc ici simplement une forme de parallélépipède rectangle.Block 30 therefore simply has the shape of a rectangular parallelepiped here.

Le bloc 30 a une hauteur sensiblement égale ici à la hauteur totale du plancher. De la sorte, lorsque l'élément d'isolation thermique 6 est emboîté sur la bordure 10 ancrée dans la prédalle 5, la face supérieure de l'élément de liaison structurelle 7 est à hauteur sensiblement de la dalle de compression coulée sur la prédalle.The block 30 has a height substantially equal here to the total height of the floor. In this way, when the thermal insulation element 6 is fitted onto the edge 10 anchored in the pre-slab 5, the upper face of the structural connection element 7 is at substantially the height of the compression slab cast on the pre-slab.

De préférence, l'élément d'isolation thermique 6 comporte une plaque 31, le bloc 30 en matériau isolant thermiquement étant solidarisé à ladite plaque 31. A cet effet, l'élément d'isolation thermique 6 comporte deux sangles (dont une seule sangle 32 est visible ici) entourant conjointement le bloc 30 en matériau isolant thermiquement et la plaque 31 de sorte à fixer ledit bloc 30 à ladite plaque 31.Preferably, the thermal insulation element 6 comprises a plate 31, the block 30 of thermally insulating material being secured to said plate 31. At this Indeed, the thermal insulation element 6 comprises two straps (of which only one strap 32 is visible here) jointly surrounding the block 30 of thermally insulating material and the plate 31 so as to fix said block 30 to said plate 31.

La plaque 31 est par exemple en métal. Typiquement la plaque 31 est en acier.Plate 31 is for example made of metal. Typically plate 31 is made of steel.

De préférence, la plaque 31 a une forme sensiblement identique à celle du bloc 30 en matériau isolant thermiquement pour épouser les contours dudit bloc 30 lorsqu'ils sont solidarisés ensemble.Preferably, the plate 31 has a shape substantially identical to that of the block 30 of thermally insulating material to match the contours of said block 30 when they are secured together.

La plaque 31 porte ici des moyens d'encliquetage 40 aptes à coopérer avec des moyens d'encliquetage correspondants (ici les encoches 19 de clipage) de la bordure 10 de la prédalle 5 pour l'emboîtement de l'élément d'isolation thermique 6 sur ladite bordure 10. Les moyens d'encliquetage 40 de l'élément d'isolation thermique 6 sont ici visés à la plaque 31. Lesdits moyens d'encliquetage 40 comportent ici deux doigts légèrement élastiquement déformables comprenant chacun une portion d'accroche conformée en Z, un des bords du Z venant s'encliqueter dans deux encoches de clipage 19 successives de la bordure 10 pour solidariser l'élément d'isolation thermique 6 à la prédalle 5.The plate 31 here carries latching means 40 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for nesting the thermal insulation element 6 on said edge 10. The latching means 40 of the thermal insulation element 6 are here aimed at the plate 31. Said latching means 40 here comprise two slightly elastically deformable fingers each comprising a hooking portion shaped like Z, one of the edges of the Z snaps into two successive clipping notches 19 of the edge 10 to secure the thermal insulation element 6 to the pre-slab 5.

Du fait de l'absence de patte sur lesquelles reposer, les éléments de liaison structurelle 7 de la variante décrite sont conformés pour pouvoir être également solidarisés à la prédalle 5. A cet effet, l'élément de liaison structurelle 7 comporte un bloc 33 en béton et des moyens d'encliquetage 43 aptes à coopérer avec des moyens d'encliquetage correspondants (ici les encoches 19 de clipage) de la bordure 10 de la prédalle 5 pour l'emboîtement de l'élément de liaison structurelle 7 sur ladite bordure 10. Les moyens d'encliquetage 43 de l'élément de l'élément de liaison structurelle 7 sont ici visés au bloc 33. Lesdits moyens d'encliquetage 43 comportent ici deux doigts légèrement élastiquement déformables comprenant chacun une portion d'accroche conformée en Z, un des bords du Z venant s'encliqueter dans deux encoches de clipage 19 successives de la bordure 10 pour solidariser l'élément de liaison structurelle 7 à la prédalle 5.Due to the absence of a tab on which to rest, the structural connection elements 7 of the variant described are shaped so that they can also be secured to the preslab 5. For this purpose, the structural connection element 7 comprises a block 33 in concrete and latching means 43 capable of cooperating with corresponding latching means (here the clipping notches 19) of the edge 10 of the preslab 5 for the nesting of the structural connecting element 7 on said edge 10 The latching means 43 of the element of the structural connection element 7 are here referred to in block 33. Said latching means 43 here comprise two slightly elastically deformable fingers each comprising a hooking portion shaped in Z, one of the edges of the Z snapping into two successive clipping notches 19 of the edge 10 for secure the structural connection element 7 to the pre-slab 5.

En outre, comme précédemment décrit, le bloc 33 en béton comporte des armatures 34 traversant ledit bloc 33 de sorte à être saillantes de part et d'autre du bloc 33.Furthermore, as previously described, the concrete block 33 comprises reinforcements 34 passing through said block 33 so as to protrude on either side of the block 33.

Ainsi, le bloc 33 de l'élément de liaison structurelle 7 est ici conformé en un parallélépipède rectangle. Le bloc 33 de l'élément de liaison structurelle 7 a une hauteur sensiblement identique à la hauteur du bloc 30 en matériau isolant thermiquement de l'élément d'isolation thermique 6 associé. L'élément de liaison structurelle 7 est donc configuré de sorte à avoir une hauteur sensiblement identique à la hauteur totale du plancher.Thus, the block 33 of the structural connection element 7 is here shaped into a rectangular parallelepiped. The block 33 of the structural connection element 7 has a height substantially identical to the height of the block 30 of thermally insulating material of the associated thermal insulation element 6. The structural connection element 7 is therefore configured so as to have a height substantially identical to the total height of the floor.

De la sorte, lorsque l'élément de liaison structurelle 7 est solidarisé à la bordure 10 de la prédalle 5, entre la bordure 10 et la portion 2 de mur 3, la face supérieure de l'élément de liaison structurelle 7 est à hauteur sensiblement de la dalle de compression coulée sur la prédalle 5. Les armatures 34 sont quant à elles bien entendu agencées de sorte à être à une hauteur supérieure à celle de la bordure 10 ancrée dans le corps de la prédalle 5, lorsque l'élément de liaison structurelle 7 est agencé le long de la bordure 10, pour s'étendre d'un côté en direction de la prédalle 5 au-dessus de la prédalle 5 et de l'autre côté en direction du mur 2 au-dessus d'au moins une partie de la portion 3 du mur 2 déjà construite.In this way, when the structural connection element 7 is secured to the edge 10 of the preslab 5, between the edge 10 and the portion 2 of wall 3, the upper face of the structural connection element 7 is at substantially of the compression slab cast on the pre-slab 5. The reinforcements 34 are for their part of course arranged so as to be at a height greater than that of the edge 10 anchored in the body of the pre-slab 5, when the connecting element structural 7 is arranged along the edge 10, to extend on one side towards the pre-slab 5 above the pre-slab 5 and on the other side towards the wall 2 above at least part of portion 3 of wall 2 already constructed.

Les armatures 34 sont noyées dans le béton du bloc 33 de l'élément de liaison structurelle 7 de sorte que les armatures 34 et ledit bloc 33 forment un tout-rigide. Les armatures 34 sont par exemple en acier, typiquement en acier inoxydable.The reinforcements 34 are embedded in the concrete of the block 33 of the structural connecting element 7 so that the frames 34 and said block 33 form an all-rigid structure. The frames 34 are for example made of steel, typically stainless steel.

De façon préférée, le béton du bloc 33 de l'élément de liaison structurelle 7 est un béton ayant une conductivité thermique inférieure à 1 watt par mètre-kelvin. Le béton du bloc 33 de l'élément de liaison structurelle 7 présente donc une conductivité thermique réduite.Preferably, the concrete of block 33 of the structural connection element 7 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin. The concrete of block 33 of structural connection element 7 therefore has reduced thermal conductivity.

Ici, le béton du bloc 33 de l'élément de liaison structurelle 7 est un béton à conductivité thermique inférieure à 0.6 watt par mètre-kelvin ce qui renforce encore davantage le traitement des ponts thermiques par l'élément de liaison structurelle 7.Here, the concrete of block 33 of the structural connection element 7 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 7.

Une deuxième mise en oeuvre du procédé selon l'invention va être présent décrite en référence aux figures 8 à 10. Les éléments en commun avec la première mise en oeuvre conservent la même numérotation augmentée d'une centaine.A second implementation of the method according to the invention will be described with reference to the figures 8 has 10 . The elements in common with the first implementation retain the same numbering increased by a hundred.

Contrairement à la première mise en oeuvre dans laquelle le plancher 1 était un plancher à prédalles, le plancher 101 de la deuxième mise en oeuvre est un plancher à dalle pleine.Unlike the first implementation in which floor 1 was a pre-slab floor, floor 101 of the second implementation is a solid slab floor.

Dès lors, le mur 102 est monté jusqu'à sensiblement le niveau où le plancher 101 est destiné à être posé. De préférence, la partie supérieure de la portion de mur déjà montée présente un arrêt qui permet une meilleure jonction avec la suite du mur à construire.From then on, the wall 102 is mounted up to substantially the level where the floor 101 is intended to be laid. Preferably, the upper part of the portion of wall already assembled has a stop which allows a better connection with the rest of the wall to be built.

Un support de lisse pour la construction du plancher 101 est alors positionné contre la portion montée du mur 102.A rail support for the construction of the floor 101 is then positioned against the mounted portion of the wall 102.

On agence alors le long du mur 102, directement sur le support, des éléments d'isolation thermique 106 et des éléments de liaison structurelle 107 de sorte à agencer en alternance un élément d'isolation thermique 106 et un élément de liaison structurelle 107 le long dudit mur 102. On rapporte ainsi à proximité de la portion du mur 102, le long de ladite portion, les différents éléments d'isolation thermique 106 et de liaison structurelle 107 sensiblement au niveau où une dalle de compression 109 du plancher 101 doit être coulée. De façon préférée, les différents éléments d'isolation thermique 106 et de liaison structurelle 107 sont agencés de sorte à avoir une de leur face en appui contre le mur 102 (lorsque celui-ci est complètement monté).Thermal insulation elements 106 and structural connection elements 107 are then arranged along the wall 102, directly on the support, so as to arrange alternately a thermal insulation element 106 and a structural connection element 107 along said wall 102. We thus relate near the portion of the wall 102, along said portion, the different thermal insulation elements 106 and structural connection 107 substantially at the level where a compression slab 109 of the floor 101 must be poured. Preferably, the different thermal insulation elements 106 and structural connection elements 107 are arranged so as to have one of their faces resting against the wall 102 (when it is completely mounted).

Chaque élément d'isolation thermique 106 comporte un bloc en matériau isolant thermiquement. Ledit bloc est par exemple en laine minérale.Each thermal insulation element 106 comprises a block of thermally insulating material. Said block is for example made of mineral wool.

Une portion inférieure dudit bloc comporte une patte 150 (ou languette) formant une extension longitudinale du bloc. La patte 150 est venue de matière avec le reste du bloc.A lower portion of said block comprises a tab 150 (or tongue) forming a longitudinal extension of the block. The lug 150 came as one piece with the rest of the block.

Le bloc a donc grossièrement une forme de L avec une partie principale 124 de forme sensiblement parallélépipédique et une partie secondaire formée de la patte 150.The block therefore has roughly an L shape with a main part 124 of substantially parallelepiped shape and a secondary part formed by the tab 150.

La patte 150 présente donc une hauteur inférieure à la hauteur de la partie principale 124. La patte 150 a une largeur identique à celle de la partie principale 124. La patte 150 a ici une longueur inférieure à la longueur de la partie principale 124. Par exemple, la patte 150 à une longueur comprise entre 20 et 40 centimètres et la partie principale 124 a une longueur comprise entre 70 et 110 centimètres.The tab 150 therefore has a height less than the height of the main part 124. The tab 150 has a width identical to that of the main part 124. The tab 150 here has a length less than the length of the main part 124. By example, the tab 150 has a length of between 20 and 40 centimeters and the main part 124 has a length of between 70 and 110 centimeters.

La partie principale 124 a une hauteur sensiblement égale ici à la hauteur totale du plancher 101. De la sorte, la face supérieure de l'élément d'isolation thermique 106 est à hauteur sensiblement de la dalle de compression 109 coulée.The main part 124 has a height substantially equal here to the total height of the floor 101. In this way, the upper face of the thermal insulation element 106 is at substantially the height of the cast compression slab 109.

On note que contrairement à la première mise en oeuvre et à sa variante, l'élément d'isolation thermique 106 ne comporte ni plaque, ni sangle ni moyens d'encliquetage. Ceci s'explique par le fait que l'élément d'isolation thermique 106 est simplement agencé le long du mur mais n'est pas solidarisé à une quelconque prédalle ou autre partie du bâtiment déjà monté.Note that unlike the first implementation and its variant, the thermal insulation element 106 does not include any plate, strap or latching means. This is explained by the fact that the thermal insulation element 106 is simply arranged along the wall but is not attached to any pre-slab or other part of the building already assembled.

Par ailleurs, chaque élément de liaison structurelle 107 comporte un bloc 128 en béton comportant des armatures 129 traversant ledit bloc 128 de sorte à être saillantes de part et d'autre du bloc 128.Furthermore, each structural connecting element 107 comprises a concrete block 128 comprising reinforcements 129 passing through said block 128 so as to protrude on either side of the block 128.

Les armatures 129 sont noyées dans le béton du bloc 128 de l'élément de liaison structurelle 107 de sorte que les armatures 129 et ledit bloc 128 forment un tout-rigide. Les armatures 129 sont par exemple en acier, typiquement en acier inoxydable.The reinforcements 129 are embedded in the concrete of the block 128 of the structural connection element 107 so that the reinforcements 129 and said block 128 form an all-rigid structure. The frames 129 are for example made of steel, typically stainless steel.

De préférence, le bloc 128 de l'élément de liaison structurelle 107 est configuré pour être posé sur la patte 150 de l'un des éléments d'isolation thermique 106. Ainsi, le bloc 128 de l'élément de liaison structurelle 107 est ici conformé en un parallélépipède rectangle de même largeur et de même longueur que la patte 150 correspondante. Le bloc 128 de l'élément de liaison structurelle 107 a une hauteur telle que la somme de la hauteur du bloc 128 de l'élément de liaison structurelle 107 et de la hauteur de la patte 150 correspond sensiblement à la hauteur de la partie principale 124 du bloc en matériau isolant thermiquement de l'élément d'isolation thermique 106 associé.Preferably, the block 128 of the structural connection element 107 is configured to be placed on the tab 150 of one of the thermal insulation elements 106. Thus, the block 128 of the structural connection element 107 is here shaped into a rectangular parallelepiped of the same width and the same length as the corresponding leg 150. The block 128 of the structural connecting element 107 has a height such that the sum of the height of the block 128 of the structural connecting element 107 and the height of the tab 150 corresponds substantially to the height of the main part 124 of the block of thermally insulating material of the associated thermal insulation element 106.

L'élément de liaison structurelle 107 est donc configuré de sorte que la somme de la hauteur du bloc 128 dudit élément de liaison structurelle 107 et de la hauteur de la patte 150 est égale a sensiblement la hauteur totale du plancher 101.The structural connection element 107 is therefore configured so that the sum of the height of the block 128 of said structural connection element 107 and the height of the tab 150 is substantially equal to the total height of the floor 101.

De la sorte, lorsque l'élément de liaison structurelle 107 est posé sur la patte 150 de l'élément d'isolation thermique 106 associé, la face supérieure de l'élément de liaison structurelle 107 est à hauteur sensiblement de la dalle de compression 109 coulée.In this way, when the structural connecting element 107 is placed on the tab 150 of the associated thermal insulation element 106, the upper face of the structural connection element 107 is at substantially the height of the cast compression slab 109.

De façon préférée, le béton du bloc 128 de l'élément de liaison structurelle 107 est un béton ayant une conductivité thermique inférieure à 1 watt par mètre-kelvin. Le béton du bloc 128 de l'élément de liaison structurelle 107 présente donc une conductivité thermique réduite.Preferably, the concrete of the block 128 of the structural connection element 107 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin. The concrete of block 128 of structural connecting element 107 therefore has reduced thermal conductivity.

Ici, le béton du bloc 128 de l'élément de liaison structurelle 107 est un béton à conductivité thermique inférieure à 0.6 watt par mètre-kelvin ce qui renforce encore davantage le traitement des ponts thermiques par l'élément de liaison structurelle 107.Here, the concrete of block 128 of the structural connection element 107 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 107.

De la sorte, lorsque l'opérateur souhaite agencer les éléments d'isolation thermique 106 et les éléments de liaison structurelle 107 le long de la portion 3 du mur 2, il effectue successivement les étapes suivantes :

  • dépose d'un élément d'isolation thermique 106 tel que précédemment décrit le long du mur 2, la patte 150 de l'élément d'isolation thermique définissant alors l'espace séparant les deux parties principales 124 de deux éléments d'isolation thermique consécutifs,
  • dépose d'un élément de liaison structurelle 107 tel que précédemment décrit sur la patte 150 de l'un des éléments d'isolation thermique 106 de sorte que les armatures 129 en saillie d'un côté des éléments de liaison structurelle 107 sont positionnées au-dessus de la portion 2 du mur 3 et les armatures 129 en saillie de l'autre côté des éléments de liaison structurelle 107 sont positionnées au-dessus du support.
In this way, when the operator wishes to arrange the thermal insulation elements 106 and the structural connection elements 107 along the portion 3 of the wall 2, he successively carries out the following steps:
  • removal of a thermal insulation element 106 as previously described along the wall 2, the tab 150 of the thermal insulation element then defining the space separating the two main parts 124 of two consecutive thermal insulation elements ,
  • removal of a structural connection element 107 as previously described on the tab 150 of one of the thermal insulation elements 106 so that the reinforcements 129 projecting from one side of the structural connection elements 107 are positioned at the above portion 2 of wall 3 and the frames 129 projecting from the other side of the structural connection elements 107 are positioned above the support.

Dès lors, il ne reste plus qu'à former la dalle de compression 109 en coulant du béton de sorte que les armatures 129 en saillie de l'élément de liaison structurelle 107 s'étendant au-dessus du support se retrouvent noyées dans le béton. La dalle de compression 109 est coulée de sorte à venir à hauteur des différents éléments de liaison structurelle 107 et d'isolation thermique 106 longeant le mur 102.From then on, all that remains is to form the compression slab 109 by pouring concrete so that the reinforcements 129 projecting from the structural connecting element 107 extending above the support find themselves embedded in the concrete. The compression slab 109 is cast so as to come at the height of the various structural connection elements 107 and thermal insulation 106 running along the wall 102.

Du béton est également coulé au-dessus de la portion de mur 103 déjà existante pour continuer la construction du mur 102 de sorte que les armatures en saillie 129 de l'autre côté de l'élément de liaison structurelle 107 (et qui s'étendent au-dessus du mur 102) se retrouvent également noyées dans le béton.Concrete is also poured above the already existing wall portion 103 to continue the construction of the wall 102 so that the projecting reinforcements 129 on the other side of the structural connection element 107 (and which extend above wall 102) are also found buried in concrete.

Les armatures 129 se retrouvent ainsi ancrées d'un côté dans le plancher 101 et de l'autre côté dans le mur 102 ce qui assure la portance du plancher 101.The frames 129 are thus anchored on one side in the floor 101 and on the other side in the wall 102 which ensures the load-bearing capacity of the floor 101.

Par ailleurs, les ponts thermiques susceptibles de se former entre le plancher 101 et le mur 102 sont très limités puisque les éléments d'isolation thermique 106 forment une barrière d'isolation thermique entre le plancher 101 et le mur 102 en étant agencés entre le plancher 101 et le mur 102 sur sensiblement toute la hauteur du plancher 101. De plus, les ponts thermiques sont encore davantage limités par la présence de la patte 150 participant à la formation d'une barrière d'isolation thermique continue entre le plancher 101 et le mur 102: toute la portion inférieure du plancher 101 se retrouve ainsi isolée thermiquement du mur 102. En outre, les ponts thermiques sont encore davantage limités du fait de l'utilisation d'un béton particulier pour les éléments de liaison structurelle 107, béton qui est bien plus isolant thermiquement que les bétons traditionnellement utilisés dans le domaine des bâtiments et qui ont une conductivité thermique d'au moins 2 watt par mètre-kelvin. Les éléments de liaison structurelle 107 participent ainsi également à la formation d'une barrière d'isolation thermique entre le plancher 101 et mur 102.Furthermore, the thermal bridges likely to form between the floor 101 and the wall 102 are very limited since the thermal insulation elements 106 form a thermal insulation barrier between the floor 101 and the wall 102 by being arranged between the floor 101 and the wall 102 over substantially the entire height of the floor 101. In addition, the thermal bridges are further limited by the presence of the tab 150 participating in the formation of a continuous thermal insulation barrier between the floor 101 and the wall 102: the entire lower portion of the floor 101 is thus thermally insulated from the wall 102. In addition, the thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 107, concrete which is much more thermally insulating than the concretes traditionally used in buildings and which have a thermal conductivity of at least 2 watts per meter-kelvin. The structural connection elements 107 thus also participate in the formation of a thermal insulation barrier between the floor 101 and wall 102.

Les ponts thermiques susceptibles de se former entre le plancher 101 et le mur 102 s'avèrent donc extrêmement réduits ici sur tout le long du mur 102 considéré et sur toute la hauteur du plancher 101.The thermal bridges likely to form between the floor 101 and the wall 102 therefore prove to be extremely reduced here along the entire length of the wall 102 considered and over the entire height of the floor 101.

Par ailleurs, l'accolement des différents éléments de liaison structurelle 107 et d'isolation thermique 106 permet à la fois d'assurer une bonne isolation thermique du plancher 101 au niveau du mur 102 et à la fois d'assurer une bonne portance du plancher 101.Furthermore, the adjoining of the various structural connection elements 107 and thermal insulation elements 106 makes it possible both to ensure good thermal insulation of the floor 101 at the level of the wall 102 and at the same time to ensure good load-bearing capacity of the floor 101.

En outre, l'utilisation de la laine minérale pour les blocs des éléments d'isolation thermique 106 permet, en plus de la fonction d'isolation thermique, de remplir une fonction supplémentaire de protection contre les incendies ainsi qu'une fonction supplémentaire d'isolation acoustique. Il convient de noter que la présence de la patte 150 sur les éléments d'isolation thermique permet d'améliorer ces fonctions de protection incendie et d'isolation acoustique au niveau de la portion inférieure du plancher 101.Furthermore, the use of mineral wool for the blocks of the thermal insulation elements 106 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 150 on the thermal insulation elements makes it possible to improve these fire protection and acoustic insulation functions at the level of the lower portion of the floor 101.

Une deuxième mise en oeuvre non limitative du procédé selon l'invention vient d'être décrite. La variante illustrée à la figure 7 en relation avec la première mise en oeuvre est également applicable ici de sorte que la deuxième mise en oeuvre pourra également comprendre des éléments d'isolation thermique 106 ne comprenant pas de patte.A second non-limiting implementation of the method according to the invention has just been described. The variant illustrated in Figure 7 in relation to the first implementation is also applicable here so that the second implementation may also include thermal insulation elements 106 not comprising a tab.

Une troisième mise en oeuvre du procédé selon l'invention va être présent décrite en référence aux figures 11 à 13. Les éléments en commun avec la première mise en oeuvre conservent la même numérotation augmentée de deux centaines.A third implementation of the method according to the invention will be described with reference to the figures 11 to 13 . The elements in common with the first implementation retain the same numbering increased by two hundred.

Contrairement à la première mise en oeuvre dans laquelle le plancher 1 était un plancher à prédalles, le plancher de la troisième mise en oeuvre est un plancher à entrevous et poutrelles.Unlike the first implementation in which floor 1 was a pre-slab floor, the floor of the third implementation is a floor with interjoists and beams.

Dès lors, le mur 202 est monté jusqu'à sensiblement le niveau où le plancher est destiné à être posé. De préférence, la partie supérieure de la portion de mur montée présente un arrêt qui permet une meilleure jonction avec la suite du mur à construire.From then on, the wall 202 is raised up to substantially the level where the floor is intended to be laid. Preferably, the upper part of the mounted wall portion has a stop which allows a better connection with the rest of the wall to be built.

De façon connue en soi, un réseau de poutrelles et de poutres 235 est agencé pour délimiter le plancher du bâtiment. L'une des poutrelles 236 s'étend parallèlement à au mur 202 considéré avec un décalage par rapport au mur 202.In a manner known per se, a network of joists and beams 235 is arranged to delimit the floor of the building. One of the beams 236 extends parallel to the wall 202 considered with an offset relative to the wall 202.

On agence alors le long du mur 202, en s'aidant de ladite poutrelle 236, des éléments d'isolation thermique 206 et des éléments de liaison structurelle 207 de sorte à agencer en alternance un élément d'isolation thermique 206 et un élément de liaison structurelle 207 le long dudit mur 202. On rapporte ainsi à proximité de la portion du mur 202, le long de ladite portion, les différents éléments d'isolation thermique 206 et de liaison structurelle 207 sensiblement au niveau où une dalle de compression du plancher doit être coulée. De façon préférée, les différents éléments d'isolation thermique 206 et de liaison structurelle 207 sont agencés de sorte à avoir une de leur face en appui contre la portion de mur 202 (lorsque celui-ci est complètement monté).We then arrange along the wall 202, with the help of said beam 236, thermal insulation elements 206 and structural connecting elements 207 so as to alternately arrange a thermal insulation element 206 and a connecting element structural 207 along said wall 202. We thus relate near the portion of the wall 202, along said portion, the different thermal insulation elements 206 and structural connection 207 substantially at the level where a compression slab of the floor must be cast. Preferably, the different thermal insulation elements 206 and structural connection elements 207 are arranged so as to have one of their faces resting against the wall portion 202 (when it is completely assembled).

L'élément d'isolation thermique 206 comporte un bloc en matériau isolant thermiquement. Ledit bloc est par exemple en polystyrène. Ledit bloc est ici un rupteur longitudinal de plancher.The thermal insulation element 206 comprises a block of thermally insulating material. Said block is for example made of polystyrene. Said block here is a longitudinal floor breaker.

Le bloc comporte ainsi une portion inférieure qui comporte deux pattes (ou languettes) 237 formant chacune une extension longitudinale distincte dudit bloc. Les pattes 237 sont venues de matière avec le reste du bloc.The block thus comprises a lower portion which comprises two tabs (or tongues) 237 each forming a distinct longitudinal extension of said block. The legs 237 come as a single piece with the rest of the block.

Le bloc a donc deux parties secondaires formées chacune de l'une des pattes 237 et une partie principale 238 encadrée des deux parties secondaires.The block therefore has two secondary parts each formed of one of the legs 237 and a main part 238 framed by the two secondary parts.

Les pattes 237 présentent donc une hauteur inférieure à la hauteur de la partie principale 238. Les pattes 237 ont une largeur identique à celle de la partie principale 238. Les pattes 237 ont ici une longueur inférieure à la longueur de la partie principale 238.The legs 237 therefore have a height less than the height of the main part 238. The legs 237 have a width identical to that of the main part 238. The legs 237 here have a length less than the length of the main part 238.

La partie principale 238 a une hauteur sensiblement égale ici à la hauteur totale du plancher. De la sorte, la face supérieure de l'élément de liaison structurelle 207 est à hauteur sensiblement de la dalle de compression coulée sur le réseau de poutres et de poutrelles 235.The main part 238 has a height substantially equal here to the total height of the floor. In this way, the upper face of the structural connection element 207 is at substantially the height of the compression slab cast on the network of beams and joists 235.

De préférence, la partie principale 238 comporte des portions de support 239 dont une partie est destinée à venir reposer sur la poutrelle 236 adjacente à la portion du mur 202 et dont l'autre partie est destinée à venir sur ladite portion de mur 202 déjà formée. Pour venir agencer l'élément d'isolation thermique 206 le long du mur, on vient ainsi insérer ledit élément d'isolation thermique 206 entre le mur 202 et la poutrelle 236 adjacente de sorte qu'il repose sur ledit mur 202 et ladite poutrelle 236 par ses portions de support 239.Preferably, the main part 238 comprises support portions 239, a part of which is intended to rest on the beam 236 adjacent to the portion of the wall 202 and the other part of which is intended to come on said portion of wall 202 already formed . To arrange the thermal insulation element 206 along the wall, said thermal insulation element 206 is thus inserted between the wall 202 and the adjacent beam 236 so that it rests on said wall 202 and said beam 236 by its support portions 239.

L'élément de liaison structurelle 207 comporte un bloc 228 en béton comportant des armatures 229 traversant ledit bloc 228 de sorte à être saillantes de part et d'autre du bloc 228.The structural connecting element 207 comprises a concrete block 228 comprising reinforcements 229 passing through said block 228 so as to protrude on either side of the block 228.

Les armatures 229 sont noyées dans le béton du bloc 228 de l'élément de liaison structurelle 207 de sorte que les armatures 229 et ledit bloc 228 forment un tout-rigide. Les armatures 229 sont par exemple en acier, typiquement en acier inoxydable.The reinforcements 229 are embedded in the concrete of the block 228 of the structural connection element 207 so that the reinforcements 229 and said block 228 form an all-rigid structure. The frames 229 are for example made of steel, typically stainless steel.

De préférence, le bloc 228 de l'élément de liaison structurelle 207 est configuré pour être posé sur l'une des pattes 237 de l'un des éléments d'isolation thermique 206. Ainsi, le bloc 228 de l'élément de liaison structurelle 207 est ici conformé en un parallélépipède rectangle de même largeur et de même longueur que la patte 237 correspondante. Le bloc 228 de l'élément de liaison structurelle 207 a une hauteur telle que la somme de la hauteur du bloc 228 de l'élément de liaison structurelle 207 et de la hauteur de la patte 237 correspond sensiblement à la hauteur totale du plancher.Preferably, the block 228 of the structural connection element 207 is configured to be placed on one of the legs 237 of one of the thermal insulation elements 206. Thus, the block 228 of the structural connection element 207 is here shaped into a parallelepiped rectangle of the same width and the same length as the corresponding tab 237. The block 228 of the structural connection element 207 has a height such that the sum of the height of the block 228 of the structural connection element 207 and the height of the tab 237 corresponds substantially to the total height of the floor.

De la sorte, lorsque l'élément de liaison structurelle 207 est posé sur la patte 237 de l'élément d'isolation thermique 206 associé, la face supérieure de l'élément de liaison structurelle 207 est à hauteur sensiblement de la dalle de compression coulée.In this way, when the structural connection element 207 is placed on the tab 237 of the associated thermal insulation element 206, the upper face of the structural connection element 207 is at substantially the height of the cast compression slab .

De façon préférée, le béton du bloc 228 de l'élément de liaison structurelle 207 est un béton ayant une conductivité thermique inférieure à 1 watt par mètre-kelvin. Le béton du bloc 228 de l'élément de liaison structurelle 207 présente donc une conductivité thermique réduite.Preferably, the concrete of the block 228 of the structural connection element 207 is a concrete having a thermal conductivity of less than 1 watt per meter-kelvin. The concrete of block 228 of structural connecting element 207 therefore has reduced thermal conductivity.

Ici, le béton du bloc 228 de l'élément de liaison structurelle 207 est un béton à conductivité thermique inférieure à 0.6 watt par mètre-kelvin ce qui renforce encore davantage le traitement des ponts thermiques par l'élément de liaison structurelle 207.Here, the concrete of block 228 of the structural connection element 207 is a concrete with thermal conductivity less than 0.6 watt per meter-kelvin which further reinforces the treatment of thermal bridges by the structural connection element 207.

De la sorte, lorsque l'opérateur souhaite agencer les éléments d'isolation thermique 206 et les éléments de liaison structurelle 207 le long de la portion du mur 202, il effectue successivement les étapes suivantes :

  • dépose d'un élément d'isolation thermique 206 tel que précédemment décrit le long du mur 202, entre le mur 202 et la poutrelle 236 adjacente au mur,
  • dépose d'un élément de liaison structurelle 207 tel que précédemment décrit sur la patte 237 de l'un des éléments d'isolation thermique 206 de sorte que les armatures 229 en saillie d'un côté des éléments de soutien structurel 207 sont positionnées au-dessus de la portion du mur 202 et les armatures 229 en saillie de l'autre côté des éléments de liaison structurelle 207 sont positionnées au-dessus du réseau de poutrelles et poutres 235.
In this way, when the operator wishes to arrange the thermal insulation elements 206 and the structural connection elements 207 along the portion of the wall 202, he successively performs the following steps:
  • removal of a thermal insulation element 206 as previously described along the wall 202, between the wall 202 and the beam 236 adjacent to the wall,
  • removal of a structural connecting element 207 as previously described on the tab 237 of one of the thermal insulation elements 206 so that the reinforcements 229 projecting from one side of the structural support elements 207 are positioned au- above the portion of the wall 202 and the frames 229 projecting from the other side structural connection elements 207 are positioned above the network of joists and beams 235.

Dès lors, il ne reste plus qu'à former la dalle de compression en coulant du béton de sorte que les armatures 229 en saillie de l'élément de liaison structurelle 207 s'étendant au-dessus du réseau de poutrelles et poutres 235 se retrouvent noyées dans le béton. La dalle de compression est coulée de sorte à venir à hauteur des différents éléments de liaison structurelle 207 et d'isolation thermique 206 longeant le mur 202.From then on, all that remains is to form the compression slab by pouring concrete so that the reinforcements 229 projecting from the structural connection element 207 extending above the network of joists and beams 235 are found embedded in concrete. The compression slab is cast so as to come at the height of the various structural connection elements 207 and thermal insulation 206 running along the wall 202.

Du béton est également coulé au-dessus de la portion de mur 202 déjà existante pour continuer la construction du mur 202 de sorte que les armatures 229 en saillie de l'autre côté de l'élément de liaison structurelle 207 (et qui s'étendent au-dessus du mur 202) se retrouvent également noyées dans le béton.Concrete is also poured above the already existing wall portion 202 to continue the construction of the wall 202 so that the reinforcements 229 project on the other side of the structural connection element 207 (and which extend above wall 202) are also found buried in concrete.

Les armatures 229 se retrouvent ainsi ancrées d'un côté dans le plancher et de l'autre côté dans le mur 202 ce qui assure la portance du plancher.The frames 229 are thus anchored on one side in the floor and on the other side in the wall 202 which ensures the load-bearing capacity of the floor.

Par ailleurs, les ponts thermiques susceptibles de se former entre le plancher et le mur 202 sont très limités puisque les éléments d'isolation thermique 206 forment une barrière d'isolation thermique entre le plancher et le mur 202 en étant agencés entre le plancher et le mur 202 sur sensiblement toute la hauteur du plancher. De plus, les ponts thermiques sont encore davantage limités par la présence de la patte 237 participant à la formation d'une barrière d'isolation thermique continue entre le plancher et le mur 202 : toute la portion inférieure du plancher se retrouve ainsi isolée thermiquement du mur 202. En outre, les ponts thermiques sont encore davantage limités du fait de l'utilisation d'un béton particulier pour les éléments de liaison structurelle 207, béton qui est bien plus isolant thermiquement que les bétons traditionnellement utilisés dans le domaine des bâtiments et qui ont une conductivité thermique d'au moins 2 watt par mètre-kelvin. Les éléments de liaison structurelle 207 participent ainsi également à la formation d'une barrière d'isolation thermique entre le plancher et mur 202.Furthermore, the thermal bridges likely to form between the floor and the wall 202 are very limited since the thermal insulation elements 206 form a thermal insulation barrier between the floor and the wall 202 by being arranged between the floor and the wall. wall 202 over substantially the entire height of the floor. In addition, the thermal bridges are further limited by the presence of the tab 237 participating in the formation of a continuous thermal insulation barrier between the floor and the wall 202: the entire lower portion of the floor is thus thermally isolated from the wall 202. In addition, thermal bridges are even more limited due to the use of a particular concrete for the structural connection elements 207, concrete which is much more thermally insulating than concretes traditionally used in buildings and which have a thermal conductivity of at least 2 watts per meter-kelvin. The structural connection elements 207 thus also participate in the formation of a thermal insulation barrier between the floor and wall 202.

Les ponts thermiques susceptibles de se former entre le plancher et le mur 202 s'avèrent donc extrêmement réduits ici sur tout le long du mur 202 considéré et sur toute la hauteur du plancher.The thermal bridges likely to form between the floor and the wall 202 therefore prove to be extremely reduced here along the entire length of the wall 202 considered and over the entire height of the floor.

Par ailleurs, l'accolement des différents éléments de liaison structurelle 207 et d'isolation thermique 206 permet à la fois d'assurer une bonne isolation thermique du plancher au niveau du mur 202 et à la fois d'assurer une bonne portance du plancher.Furthermore, the joining of the various structural connection elements 207 and thermal insulation elements 206 makes it possible both to ensure good thermal insulation of the floor at the level of the wall 202 and at the same time to ensure good load-bearing capacity of the floor.

En outre, l'utilisation de la laine minérale pour les blocs des éléments d'isolation thermique 206 permet, en plus de la fonction d'isolation thermique, de remplir une fonction supplémentaire de protection contre les incendies ainsi qu'une fonction supplémentaire d'isolation acoustique. Il convient de noter que la présence de la patte 237 sur les éléments d'isolation thermique 206 permet d'améliorer ces fonctions de protection incendie et d'isolation acoustique au niveau de la portion inférieure du plancher.Furthermore, the use of mineral wool for the blocks of thermal insulation elements 206 makes it possible, in addition to the thermal insulation function, to fulfill an additional fire protection function as well as an additional fire protection function. soundproofing. It should be noted that the presence of the tab 237 on the thermal insulation elements 206 makes it possible to improve these fire protection and sound insulation functions at the level of the lower portion of the floor.

Une troisième mise en oeuvre non limitative du procédé selon l'invention vient d'être décrite. La variante illustrée à la figure 7 en relation avec la première mise en oeuvre est également applicable ici de sorte que la troisième mise en oeuvre pourra également comprendre des éléments d'isolation thermique 206 ne comprenant pas de patte.A third non-limiting implementation of the method according to the invention has just been described. The variant illustrated in Figure 7 in relation to the first implementation is also applicable here so that the third implementation may also include thermal insulation elements 206 not comprising a tab.

Une quatrième mise en oeuvre du procédé selon l'invention va être présent décrite en référence à la figure 14. Les éléments en commun avec la première mise en oeuvre conservent la même numérotation augmentée de trois centaines.A fourth implementation of the method according to the invention will be described with reference to the Figure 14 . The elements in common with the first implementation work retains the same numbering increased by three hundreds.

Contrairement à la première mise en oeuvre, bien que le plancher 301 soit également un plancher à prédalles, les différents éléments d'isolation thermique 306 ne sont pas ici solidarisés à la prédalle 305 par encliquetage mais en étant directement ancrés dans le corps en béton de ladite prédalle 305. On note ainsi que la prédalle 305 ne comporte aucune bordure et que les éléments d'isolation thermique 306 ne comportent aucuns moyens d'encliquetage comme dans la première mise en oeuvre.Unlike the first implementation, although the floor 301 is also a pre-slab floor, the various thermal insulation elements 306 are not here secured to the pre-slab 305 by snap-fastening but by being directly anchored in the concrete body of said pre-slab 305. We thus note that the pre-slab 305 has no border and that the thermal insulation elements 306 do not include any snap-fastening means as in the first implementation.

Les éléments d'isolation thermique 306 sont ainsi solidarisés à la prédalle 305 au cours même de la fabrication de la prédalle 305. A cet effet, on agence les éléments d'isolation thermique 306 dans le moule de fabrication de la prédalle 305 de sorte qu'ils se trouvent accolés à la rive dudit moule. Puis on coule le corps en béton de la prédalle 305 ce qui permet d'ancrer les éléments d'isolation thermique 306 dans ledit corps en béton et ainsi de solidariser les éléments d'isolation thermique 306 à la prédalle 305.The thermal insulation elements 306 are thus secured to the pre-slab 305 during the manufacturing of the pre-slab 305. To this end, the thermal insulation elements 306 are arranged in the manufacturing mold of the pre-slab 305 so that 'they are attached to the bank of said mold. Then the concrete body of the pre-slab 305 is poured, which makes it possible to anchor the thermal insulation elements 306 in said concrete body and thus to secure the thermal insulation elements 306 to the pre-slab 305.

Les éléments d'isolation thermique 306 se trouvent ainsi au bord de la prédalle 305 et non décalés du bord de la prédalle 305.The thermal insulation elements 306 are thus located at the edge of the pre-slab 305 and not offset from the edge of the pre-slab 305.

Pour le reste, les éléments d'isolation thermique 306 et les éléments de liaison structurelle 307 sont ici identiques à ceux de la première mise en oeuvre et les éléments de liaison structurelle 307 sont rapportés le long du mur en étant posés sur la patte 350 de l'élément d'isolation thermique adjacent.For the rest, the thermal insulation elements 306 and the structural connection elements 307 are here identical to those of the first implementation and the structural connection elements 307 are attached along the wall by being placed on the tab 350 of the adjacent thermal insulation element.

Bien entendu l'invention n'est pas limitée aux mises en oeuvre décrites et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the implementations described and alternative embodiments can be made without departing from the scope of the invention as defined by the claims.

Bien qu'ici les différents éléments soient solidarisés à la prédalle une fois la prédalle en place contre le mur, les différents éléments pourront être solidarisés à la prédalle avant la pose de la prédalle contre le mur (par exemple directement sur le site de production de la prédalle ou alors sur le site de fabrication du bâtiment avant montage de la prédalle).Although here the different elements are united to the pre-slab once the pre-slab is in place against the wall, the different elements can be secured to the pre-slab before installing the pre-slab against the wall (for example directly on the production site of the pre-slab or on the manufacturing site of the building before assembly of the pre-slab).

Bien qu'ici la prédalle ne comporte qu'une seule bordure, la prédalle pourra comporter un plus grand nombre de bordures pour former l'un de ses bords. Les bordures successives destinées à former un bord de la prédalle pourront soit être emboîtées les unes aux autres au niveau de leurs extrémités, soit être accolées les unes aux autres sans être emboîtées soit être séparées par un espace.Although here the preslab has only one border, the preslab may have a greater number of borders to form one of its edges. The successive borders intended to form an edge of the preslab can either be fitted together at their ends, or be joined together without being fitted together or be separated by a space.

Les bordures pourront être redécoupées à une longueur voulue pour former le bord de la prédalle de sorte que l'extrémité découpée ne comporte aucun moyen d'encliquetage contrairement à l'extrémité formée initiale, qu'une des cellules ne soit pas complète après découpage ...The edges can be recut to a desired length to form the edge of the preslab so that the cut end does not have any means of snapping, unlike the initial formed end, that one of the cells is not complete after cutting. ..

La bordure pourra être différente de ce qui a été décrite. La deuxième rangée de cellules pourra ainsi ne comporter que des cellules accolées les unes aux autres. La première rangée de cellules et la deuxième rangée de cellules comporteront alors le même nombre de cellules. Les languettes s'étendront alors sous l'une des cellules de la deuxième rangée, cellule non associée à un pied d'ancrage.The border may be different from what has been described. The second row of cells can thus only include cells adjacent to each other. The first row of cells and the second row of cells will then have the same number of cells. The tabs will then extend under one of the cells of the second row, a cell not associated with an anchoring foot.

En variante, la bordure pourra ne pas comporter de pieds, de languette ... Les cellules, les pieds, les languettes, les becs antisalissure, les encoches de clipage pourront ne pas tous être identiques. La bordure pourra comporter un nombre différent de rangées de cellules. Les cellules ne seront pas nécessairement organisées en rangée.Alternatively, the border may not have feet, tabs, etc. The cells, feet, tabs, anti-fouling nozzles, clipping notches may not all be identical. The border may have a different number of rows of cells. The cells will not necessarily be organized in a row.

La bordure pourra ne pas comporter d'aimant. Dans ce cas, la bordure pourra être simplement posée dans le moule de fabrication du corps de prédalle en étant positionnée le long des rives de ce moule et en étant le cas échéant simplement maintenue en position par des organes de maintien externes.The border may not have a magnet. In this case, the edge can simply be placed in the mold for manufacturing the pre-slab body, being positioned along the edges of this mold and, if necessary, simply being held in position by external holding members.

Bien qu'ici, la bordure soit solidarisée au corps de la prédalle par surmoulage durant la fabrication dudit corps, elle pourra être solidarisée au corps de prédalle différemment par exemple par des éléments de fixation de type vis ou autre.Although here, the edge is secured to the body of the pre-slab by overmolding during the manufacture of said body, it may be secured to the body of the pre-slab differently, for example by screw-type fixing elements or the like.

Bien qu'ici la bordure comporte une structure alvéolaire en matière plastique, la bordure pourra être dans un autre matériau par exemple en béton ou encore en métal.Although here the border has a cellular structure made of plastic, the border could be in another material, for example concrete or even metal.

Chacune des variantes des éléments d'isolation thermique pourront être associées à n'importe laquelle des bordures précitées. De même, chacune des variantes des éléments de liaison structurelle pourront être associées à n'importe laquelle des bordures précitées.Each of the variants of the thermal insulation elements can be associated with any of the aforementioned borders. Likewise, each of the variants of the structural connection elements can be associated with any of the aforementioned borders.

L'élément d'isolation thermique pourra ainsi être solidarisé à la prédalle autrement que ce qui a été décrit. Par exemple, l'élément d'isolation thermique pourra comporter au moins un bac de réception dans lequel le bloc en matériau isolant thermiquement sera agencé, l'élément d'isolation thermique étant alors solidarisé à la bordure par emboîtement du bac de réception à ladite bordure de sorte que l'élément d'isolation thermique s'étende entre le mur et la bordure.The thermal insulation element can thus be secured to the pre-slab other than what has been described. For example, the thermal insulation element may include at least one receiving tray in which the block of thermally insulating material will be arranged, the thermal insulation element then being secured to the edge by nesting the receiving tray to said border so that the thermal insulation element extends between the wall and the border.

L'élément d'isolation thermique pourra être solidarisé à la prédalle autrement que par emboîtement à la bordure de prédalle. La prédalle pourra ainsi ne pas comporter de bordure. L'élément d'isolation thermique pourra ainsi être solidarisé à la prédalle par collage, vissage ou encore par ancrage dans le corps de béton de la prédalle comme cela a déjà été indiqué (l'élément d'isolation thermique étant alors solidarisé à la prédalle au cours même de la fabrication de la prédalle) ... En variante, l'élément d'isolation thermique pourra simplement être agencé entre la prédalle et le mur sans être solidarisé à la prédalle.The thermal insulation element can be secured to the pre-slab other than by fitting to the edge of the pre-slab. The pre-slab may thus not have a border. The thermal insulation element can thus be secured to the pre-slab by gluing, screwing or even by anchoring in the concrete body of the pre-slab. as has already been indicated (the thermal insulation element then being secured to the pre-slab during the manufacturing of the pre-slab)... Alternatively, the thermal insulation element could simply be arranged between the pre-slab and the wall without being secured to the pre-slab.

De même, indépendamment du type de plancher considéré, l'élément d'isolation thermique pourra être différent de ce qui a été décrit.Likewise, regardless of the type of floor considered, the thermal insulation element may be different from what has been described.

Ainsi, le bloc de l'élément d'isolation thermique pourra être dans un matériau différent de ce qui a été décrit par exemple à base de polystyrène, à base de polystyrène expansé, à base de laine minérale, à base de perlite expansée ... Bien qu'ici la patte du bloc de l'élément d'isolation thermique soit venue de matière avec le reste dudit bloc, la patte pourra former un élément indépendant du reste du bloc mais fixé au bloc (par vissage, par collage ...) de sorte que la patte et le reste du bloc forment un tout-rigide.Thus, the block of the thermal insulation element could be in a material different from what has been described, for example based on polystyrene, based on expanded polystyrene, based on mineral wool, based on expanded perlite, etc. Although here the tab of the block of the thermal insulation element is integral with the rest of said block, the tab can form an element independent of the rest of the block but fixed to the block (by screwing, by gluing, etc.). .) so that the tab and the rest of the block form an all-rigid unit.

Lorsque l'élément d'isolation thermique comporte une plaque portant les moyens d'encliquetage, ladite plaque pourra ne pas être d'une forme identique à celle du bloc en matériau thermiquement isolant correspondant. La plaque pourra être solidarisée différemment au bloc que par une sangle par exemple par collage ou vissage ou encore à l'aide d'un élastique. L'élément d'isolation thermique pourra ne pas comporter de plaque. Dans ce cas, si l'élément d'isolation thermique comporte des moyens d'encliquetage ou d'emboîtement à la prédalle, les moyens d'encliquetage pourront être directement fixés au bloc de l'élément d'isolation thermique par exemple par collage ou par visage. Le bloc de l'élément d'isolation thermique pourra dans ce cas être à base de perlite expansée.When the thermal insulation element comprises a plate carrying the latching means, said plate may not be of a shape identical to that of the block of corresponding thermally insulating material. The plate can be secured to the block differently than by a strap, for example by gluing or screwing or even using an elastic band. The thermal insulation element may not include a plate. In this case, if the thermal insulation element includes snap-fit or nesting means on the pre-slab, the snap-fit means can be directly fixed to the block of the thermal insulation element, for example by gluing or by face. The block of the thermal insulation element could in this case be based on expanded perlite.

En outre, bien qu'ici les différents éléments d'isolation thermique soient tous identiques entre eux le long d'un même mur, les différents éléments d'isolation thermique pourront bien entendu être différents entre eux le long d'un même mur. Par exemple, certains éléments d'isolation thermique pourront comporter une patte comme illustrés à la figure 1 et d'autre ne pas en comporter comme illustrés à la figure 7. Les éléments d'isolation thermique pourront être de dimensions différentes entre eux notamment de longueur différente. Certains éléments d'isolation thermique pourront être formés d'un seul bloc en matériau thermiquement isolant et d'autre de plusieurs blocs en matériau thermiquement isolant solidarisés entre eux. Dans le cas d'un plancher à prédalle, certains éléments pourront être solidarisés à la prédalle et d'autre seulement agencés le long de la prédalle sans y être solidarisé.Furthermore, although here the different thermal insulation elements are all identical to each other the along the same wall, the different thermal insulation elements may of course be different from each other along the same wall. For example, certain thermal insulation elements may include a tab as illustrated in figure 1 and others do not behave as illustrated in the Figure 7 . The thermal insulation elements may be of different dimensions from each other, in particular of different lengths. Certain thermal insulation elements may be formed from a single block of thermally insulating material and others from several blocks of thermally insulating material joined together. In the case of a pre-slab floor, certain elements may be secured to the pre-slab and others only arranged along the pre-slab without being secured to it.

De même, indépendamment du type de plancher considéré, l'élément de liaison structurelle pourra être différent de ce qui a été décrit.Likewise, regardless of the type of floor considered, the structural connection element may be different from what has been described.

L'élément de liaison structurelle pourra ne pas être agencé le long du mur en étant posé sur la patte de l'élément d'isolation thermique contigu mais reposer directement sur le support de lisse permettant le montage du plancher (plancher à prédalles ou plancher à dalle pleine), reposer directement sur le réseau de poutres et de poutrelle (plancher à entrevous et à poutrelles) ou être solidarisé à une prédalle (plancher à prédalle). Dans ce dernier cas, l'élément de liaison structurelle pourra être solidarisé à la prédalle par emboîtement à la bordure de la prédalle. A cet effet, l'élément de liaison structurelle pourra comporter des moyens d'encliquetage aptes à coopérer avec des moyens d'encliquetage correspondants de la bordure (comme des encoches de clipage de la bordure) ancrée dans la prédalle. L'élément de liaison structurelle pourra comporter au moins un bac de réception dans lequel le bloc en béton est agencé, l'élément de liaison structurelle étant alors solidarisé à la bordure par emboîtement dudit bac de réception à la bordure. L'élément de liaison structurelle pourra être solidarisé à la prédalle autrement que par emboîtement à la bordure de prédalle. La prédalle pourra ainsi ne pas comporter de bordure. L'élément de liaison structurelle pourra ainsi être solidarisé à la prédalle par collage, vissage, par ancrage dans le corps de béton de la prédalle ... En variante, l'élément de liaison structurelle pourra simplement être agencé entre la prédalle et le mur sans être solidarisé à la prédalle.The structural connection element may not be arranged along the wall by being placed on the leg of the adjoining thermal insulation element but rest directly on the rail support allowing the assembly of the floor (floor with pre-slabs or floor with solid slab), rest directly on the network of beams and joists (joist and joist floor) or be secured to a pre-slab (pre-slab floor). In the latter case, the structural connecting element can be secured to the pre-slab by fitting onto the edge of the pre-slab. For this purpose, the structural connection element may include latching means capable of cooperating with corresponding latching means of the edge (such as clipping notches of the edge) anchored in the preslab. The structural connection element may include at least one receiving tray in which the concrete block is arranged, the element structural connection then being secured to the border by nesting said receiving tray to the border. The structural connecting element can be secured to the pre-slab other than by fitting onto the pre-slab edge. The pre-slab may thus not have a border. The structural connection element can thus be secured to the pre-slab by gluing, screwing, by anchoring in the concrete body of the pre-slab, etc. Alternatively, the structural connection element can simply be arranged between the pre-slab and the wall without being attached to the pre-slab.

Le bloc en béton de l'élément de liaison structurelle pourra être dans un matériau différent de ce qui a été décrit. Par exemple, le béton du bloc de l'élément de liaison structurelle pourra être un béton à très haute performance. Le béton choisi pourra ainsi présenter une résistance à la compression supérieure à 80 MégaPascal.The concrete block of the structural connection element may be in a material different from what has been described. For example, the concrete of the block of the structural connection element could be a very high performance concrete. The concrete chosen will thus be able to have a compressive strength greater than 80 MegaPascal.

Ceci permettra de renforcer le soutien structurel apporté au plancher et notamment de permettre au bâtiment concerné de respecter les normes sismiques en vigueur. On utilisera par exemple comme béton du béton Ductal (marque déposée par la société Lafarge).This will strengthen the structural support provided to the floor and in particular enable the building concerned to comply with current seismic standards. For example, Ductal concrete (registered trademark of the Lafarge company) will be used as concrete.

En variante, le béton du bloc de l'élément de liaison structurelle pourra être un béton à haute performance ou encore un béton ultra-haute performance.Alternatively, the concrete of the block of the structural connecting element could be a high-performance concrete or even an ultra-high performance concrete.

En outre, bien qu'ici les différents éléments de liaison structurelle soient tous identiques entre eux le long d'un même mur, les différents éléments de liaison structurelle pourront bien entendu être différents entre eux le long d'un même mur. Par exemple, certains éléments de liaison structurelle pourront être agencés sur les pattes des éléments d'isolation thermique et d'autre être agencés directement le long du mur sans reposer sur de telles pattes. Les éléments de liaison structurelle pourront être de dimensions différentes entre eux, notamment être de longueur différente. Dans le cas d'un plancher à prédalles, certains éléments pourront être solidarisés à la prédalle et d'autre seulement agencés le long de la prédalle.Furthermore, although here the different structural connection elements are all identical to each other along the same wall, the different structural connection elements could of course be different from each other along the same wall. For example, certain structural connection elements could be arranged on the legs of the thermal insulation elements and others could be arranged directly along the wall without resting on such legs. The structural connection elements may be of different dimensions from each other, in particular be of different length. In the case of a pre-slab floor, certain elements may be attached to the pre-slab and others only arranged along the pre-slab.

De même, indépendamment du type de plancher considéré, bien qu'ici le béton soit d'abord coulé au niveau du plancher avant d'être coulé au niveau du mur, on pourra bien entendu couler d'abord le béton au niveau du mur pour poursuivre la construction du mur avant de couler le béton au niveau du plancher.Likewise, regardless of the type of floor considered, although here the concrete is first poured at the floor level before being poured at the wall level, we can of course pour the concrete first at the wall level to continue construction of the wall before pouring the concrete at floor level.

En outre, bien qu'ici les différents éléments soient accolés les uns aux autres, on pourra agencer les différents éléments de sorte à laisser un léger espace entre deux éléments consécutifs. On pourra également solidariser les différents éléments entre eux une fois qu'ils sont accolés et agencés le long du mur (par collage ou vissage par exemple). Bien qu'ici les différents éléments soient tous indépendants entre eux avant leur montage le long du mur, on pourra envisager de solidariser un ou plusieurs éléments entre eux dans un premier temps et d'agencer ensuite ledit ensemble le long du mur dans un deuxième temps au lieu de les solidariser l'un à l'autre une fois qu'ils sont déjà agencés le long du mur.In addition, although here the different elements are attached to each other, we can arrange the different elements so as to leave a slight space between two consecutive elements. We can also join the different elements together once they are joined and arranged along the wall (by gluing or screwing for example). Although here the different elements are all independent of each other before their assembly along the wall, we could consider joining one or more elements together initially and then arranging said assembly along the wall in a second step instead of joining them together once they are already arranged along the wall.

Les éléments de liaison structurelle comme les éléments d'isolation thermique pourront également comporter une couche supplémentaire de protection contre les incendies comme par exemple une couche en laine minérale. En variante, le matériau des blocs des différents éléments de liaison structurelle comme le matériau des éléments d'isolation thermique pourront eux-mêmes assurer une fonction de protection contre les incendies.Structural connecting elements such as thermal insulation elements may also include an additional layer of fire protection such as for example a layer of mineral wool. Alternatively, the material of the blocks of the various structural connection elements such as the material of the thermal insulation elements can themselves provide a fire protection function.

Bien qu'ici le procédé selon l'invention ait été mis en oeuvre pour le traitement de ponts thermiques entre la rive non porteuse du plancher et le mur adjacent à ladite rive, le procédé pourra également être mis en oeuvre pour le traitement de ponts thermiques entre une rive porteuse du plancher et un mur adjacent à ladite rive.Although here the method according to the invention has been implemented for the treatment of thermal bridges between the non-load-bearing edge of the floor and the wall adjacent to said edge, the method could also be implemented for the treatment of thermal bridges between a load-bearing edge of the floor and a wall adjacent to said edge.

Pour un même bâtiment, on pourra mettre en oeuvre le procédé selon l'invention pour isoler le plancher, au niveau de ses deux rives non porteuses, des murs adjacents et mettre en oeuvre un procédé de l'art antérieur pour isoler le plancher, au niveau de ses deux rives porteuses, des murs adjacents.For the same building, it is possible to implement the method according to the invention to insulate the floor, at its two non-load-bearing edges, from adjacent walls and to implement a method of the prior art to insulate the floor, at level of its two supporting banks, of the adjacent walls.

Claims (13)

  1. Method for treating thermal bridges between a pre-slab floor (1; 101) and a wall (2; 102; 202) adjacent to the pre-slab floor, the method comprising the steps of:
    - bringing thermal insulation elements (6; 106; 206; 306) and structural connection elements (7; 107; 207; 307) of the floor close to a portion of the wall, substantially at the level where a compression slab (9; 109) of the floor must be cast, in such a way as to arrange a thermal insulation element and a structural connection element in an alternating manner along the portion of the wall, each thermal insulation element comprising a block of thermally insulating material and each structural connection element comprising a concrete block (28; 128; 228; 328) comprising reinforcements (29; 129; 229; 329) extending through the concrete block so as to project from either side of the concrete block, each structural connection element being arranged along the wall such that first reinforcements projecting from one side of the concrete block are positioned above the portion of the wall and such that second reinforcements projecting from the other side of the concrete block are positioned at the level of the future compression slab and above a concrete body of a pre-slab of the pre-slab floor,
    - casting concrete in order to extend the portion of the wall such that the first reinforcements are embedded in the concrete of the extension of the wall and casting the concrete in order to form the compression slab of the pre-slab floor such that the second projecting reinforcements are embedded in the concrete of the compression slab of the pre-slab floor.
  2. Method according to claim 1, comprising the step of arranging the pre-slab (1; 301) along the portion of the wall, at least the thermal insulation elements (6; 306) being arranged along the portion of the wall while being rigidly connected to the pre-slab.
  3. Method according to claim 2, wherein the pre-slab (5) comprises the concrete body and a border (10) anchored to an edge of said concrete body, the pre-slab being arranged such that the border extends alongside the portion of the wall, at least the thermal insulation element (6) being rigidly connected to said border by means of interlocking in order to protrude from the upper face of the concrete body.
  4. Method according to claim 3, wherein the border (10) comprises latching means suitable for cooperating with corresponding latching means of the thermal insulation element (6).
  5. Method according to claim 4, wherein the thermal insulation element (6) comprises a plate (25) bearing the latching means (27) of the thermal insulation element, the block of thermally insulating material being rigidly connected to said plate.
  6. Method according to claim 4, wherein the latching means (27) are directly secured to the block of thermally insulating material.
  7. Method according to claim 4, wherein the thermal insulation element (6) comprises at least one receiving tray bearing the latching means (27) of the thermal insulation element, the block of thermally insulating material being arranged in said receiving tray.
  8. Method according to claim 1, wherein a lower portion of the block of thermally insulating material of the thermal insulation element (6; 306) comprises a projection (50; 350) forming a longitudinal extension of the block, the structural connection element (7; 307) then being placed on said projection so as to be arranged along the wall.
  9. Method according to claim 1, wherein the block of thermally insulating material is made of mineral wool.
  10. Method according to claim 1, wherein the block of thermally insulating material is based on expanded perlite.
  11. Method according to claim 1, wherein the block of thermally insulating material is made of expanded polystyrene.
  12. Method according to claim 1, wherein the concrete of the block of the structural connection element (7; 107; 207; 307) is a concrete having a thermal conductivity of less than 1 watt per metre kelvin.
  13. Method according to claim 1, wherein the concrete of the block of the structural connection element (7; 107; 207; 307) is an ultra-high performance concrete.
EP16160910.2A 2015-03-17 2016-03-17 Method for treating thermal bridges Active EP3070220B1 (en)

Applications Claiming Priority (1)

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FR1552193A FR3033810B1 (en) 2015-03-17 2015-03-17 METHOD OF PROCESSING THERMAL BRIDGES, THERMAL INSULATION ELEMENT AND ASSOCIATED STRUCTURAL BONDING ELEMENT AND PREDALLE EQUIPPED WITH SUCH ELEMENTS.

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EP3070220B1 true EP3070220B1 (en) 2023-10-04

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FR3096699B1 (en) * 2019-05-28 2023-03-03 Omnium Technique D’Etudes Et De Precontrainte O T E P CONSTRUCTION METHOD BASED ON PRE-SLAB OF A THERMAL BRIDGE FLOOR

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2854416A3 (en) * 2003-05-02 2004-11-05 Andre Loew Thermal bridge breaker for use in building construction, has thermally insulated layer supporting non-combustible layer, where breaker is partly broken up to create reinforced concrete joint between wall tie and floor
FR2951753A1 (en) * 2009-10-22 2011-04-29 Lafarge Sa Wall for building i.e. home/house, has interior and external panels aligned and fixed at two sets of supports, and filling material thermally insulating greater than another filling material and filling intermediate area

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Publication number Priority date Publication date Assignee Title
DE19711187A1 (en) * 1997-03-18 1998-09-24 Schoeck Bauteile Gmbh Thermal insulation system
FR2887905B1 (en) * 2005-06-30 2007-08-31 Lafarge Sa THERMAL BREAKER
DE202011001710U1 (en) * 2011-01-19 2014-02-26 Ouest Armatures Earthquake-proof profiles for the production of cold bridge interruptions
FR2995330B1 (en) * 2012-09-10 2014-09-05 Kp1 CONCRETE PREDALLE FOR CONSTRUCTION OF BUILDING FLOORS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2854416A3 (en) * 2003-05-02 2004-11-05 Andre Loew Thermal bridge breaker for use in building construction, has thermally insulated layer supporting non-combustible layer, where breaker is partly broken up to create reinforced concrete joint between wall tie and floor
FR2951753A1 (en) * 2009-10-22 2011-04-29 Lafarge Sa Wall for building i.e. home/house, has interior and external panels aligned and fixed at two sets of supports, and filling material thermally insulating greater than another filling material and filling intermediate area

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FR3033810A1 (en) 2016-09-23
PT3070220T (en) 2023-11-30
ES2965318T3 (en) 2024-04-12
FR3033810B1 (en) 2017-03-10

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