EP2657423B1 - Dalle en béton - Google Patents

Dalle en béton Download PDF

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Publication number
EP2657423B1
EP2657423B1 EP12165549.2A EP12165549A EP2657423B1 EP 2657423 B1 EP2657423 B1 EP 2657423B1 EP 12165549 A EP12165549 A EP 12165549A EP 2657423 B1 EP2657423 B1 EP 2657423B1
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EP
European Patent Office
Prior art keywords
concrete slab
concrete
slab
wall
hook portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP12165549.2A
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German (de)
English (en)
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EP2657423A1 (fr
Inventor
Ronald Klein-Holte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VBI Ontwikkeling BV
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VBI Ontwikkeling BV
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Priority to EP12165549.2A priority Critical patent/EP2657423B1/fr
Publication of EP2657423A1 publication Critical patent/EP2657423A1/fr
Application granted granted Critical
Publication of EP2657423B1 publication Critical patent/EP2657423B1/fr
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Classifications

    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/04—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement
    • E04B5/043—Load-carrying floor structures formed substantially of prefabricated units with beams or slabs of concrete or other stone-like material, e.g. asbestos cement having elongated hollow cores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00—Producing shaped prefabricated articles from the material
    • B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
    • B28B1/084—Producing shaped prefabricated articles from the material by vibrating or jolting the vibrating moulds or cores being moved horizontally for making strands of moulded articles
    • 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
    • E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
    • E04B5/023—Separate connecting devices for prefabricated floor-slabs
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0645—Shear reinforcements, e.g. shearheads for floor slabs
    • 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
    • E04B1/02—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements
    • E04B1/04—Structures consisting primarily of load-supporting, block-shaped, or slab-shaped elements the elements consisting of concrete, e.g. reinforced concrete, or other stone-like material
    • E04B1/043—Connections specially adapted therefor

Definitions

  • the present invention pertains to a concrete slab.
  • Concrete slabs are widely known in the field of construction of buildings. Particularly, hollow core concrete slabs are manufactured in a factory; after curing, the slabs are transported to a construction site. Such slabs are typically used for making floors of a building. After erecting side walls the concrete slabs are placed on and supported by the side walls. Additionally, it is often desired to secure the concrete slabs to the side walls, which is possible by inserting and connecting reinforcing bars in the concrete slab and the wall. Remaining spaces around reinforcing bars may be filled with grout.
  • EP 0 643 178 A2 discloses a hollow core concrete slab.
  • a reinforcing member of the building structure can be received therein. This means that in a mounted condition of the concrete slab and the building structure, the hook portion of the concrete slab and the reinforcing member of the building structure are disposed in a mutual position such that they can exert a force onto each other. This provides the opportunity to transfer a force via the reinforcing element instead of the concrete of the concrete slab only.
  • the connecting portion may be provided at an end of the concrete slab.
  • a concrete slab is often block-shaped having opposite short side edges and opposite long side edges, whereas the small side edges mostly rest on vertical walls.
  • the hook portion may extend parallel to the plane of the concrete slab.
  • the hook portion is curved with respect to the fixed portion within a plane.
  • the hook portion is part of a U-shaped reinforcing element.
  • the fixed portion may extend in longitudinal direction of the concrete slab whereas the hook portion extends transversely with respect to the longitudinal direction.
  • the recess is at least partly surrounded by the hook portion. This does not necessarily mean that the hook portion forms a wall of the recess, since a layer of concrete may be present between the hook portion and the recess.
  • the hook portion protrudes laterally with respect to the longitudinal direction of the concrete slab. This provides the opportunity to secure the concrete slab to a neighbouring concrete slab having a similar protruding hook portion.
  • This slab may also comprise a second hooked reinforcing element which has a hook portion that protrudes at the opposite side of the concrete slab, whereas the second hooked reinforcing element is fixed to the hooked reinforcing element.
  • the concrete slab can be fixed to neighbouring concrete slabs at both sides.
  • a building not belonging to the invention, comprises a building structure which is provided with a building structure reinforcing element, and a concrete slab which is provided with a hooked reinforcing element, wherein the building structure and the concrete slab are mounted to each other such that a hook portion of the hooked reinforcing element and at least a portion of the building structure reinforcing element lie in a plane parallel to the plane of the concrete slab.
  • the hook portion and the building structure reinforcing element are located behind each other. This means that the hook portion and the reinforcing element can exert a force onto each other in a direction parallel to the plane of the concrete slab. It is advantageous that the force can be transferred via reinforcing elements instead of concrete only.
  • a concrete slab as described hereinbefore can be mounted on a building structure, wherein the building structure includes a protrusion projecting upwardly and a building structure contact surface directed upwardly, wherein the concrete slab is placed downwardly onto the building structure such that the protrusion is inserted into the recess until the slab contact surface of the connecting portion of the concrete slab rests on the building structure contact surface, wherein the hooked reinforcing element and the protrusion are adapted such that when the concrete slab rests on the building structure contact surface the hooked reinforcing element and at least a portion of the protrusion lie in a plane parallel to the plane of the concrete slab.
  • a method of manufacturing a hollow core concrete slab comprises the steps of preparing a mould in which channel recess elements are provided for obtaining channels in the concrete slab to be made and pouring concrete into the mould, wherein the steps of preparing the mould and pouring concrete are performed simultaneously whereas the mould is at least partly moved in a manufacturing direction, wherein at least a hooked reinforcing element is located within the mould at a predetermined location outside the channel recess elements, i.e. outside a path that the channel recess elements follow during manufacturing.
  • Known production steps of preparing a mould and pouring concrete are formed by a slipformer or extruder. In case of an extruder the concrete is pressurized.
  • the hooked reinforcing element may have a U-shape of which the legs direct from an end portion towards the core of the intended slab.
  • the hooked reinforcing element may have a fixed portion extending in the manufacturing direction and a hook portion which extends transversely to the manufacturing direction.
  • the resulting product may be cut in transverse direction of the manufacturing direction at a predetermined location of cutting in order to make a separate slab thereof, whereas the fixed portion of the hooked reinforcing element extends beyond the hook portion thereof as seen from the location of cutting.
  • the legs thereof will direct away from the location of cutting such that the hook portion is located at the location of cutting.
  • the hooked reinforcing element may be provided with an extension which is directed to and ends at the intended location of cutting.
  • the extension may be used to fix the hooked reinforcing element of the concrete slab to a building structure after finishing and/or cutting the concrete slab.
  • the extension may be a threaded pin to which a bolt can be attached.
  • the hooked reinforcing element may be part of a lattice member, for example a cage-shape.
  • a recess element can be placed at the hooked reinforcing element such that the hook portion and the recess element are aligned in the manufacturing direction.
  • the recess element is located behind the hooked portion as seen from the location of cutting.
  • the recess element may be an upright tube, for example. After finishing the concrete slab the recess element may be removed. Due to the presence of the recess element in the mould, a recess arises in the concrete slab as described in relation to several embodiments of concrete slabs hereinbefore.
  • Fig. 1 shows a part of a building including an end portion of an embodiment of a concrete slab 1 according to the invention.
  • An end of the concrete slab 1 is supported by a building structure, in this case a wall 2.
  • Fig. 1 shows a condition in which the wall 2 and the concrete slab 1 extend transversely with respect to each other.
  • the concrete slab 1 is of the type of a hollow core slab which is often used for making floors in buildings.
  • the concrete slab 1 can have different sizes and shapes, but mostly it is block-shaped whereas the hollow channels extend parallel to its longitudinal centre line.
  • the wall 2 may be made of concrete, as well.
  • the concrete slab 1 according to Fig. 1 has a staggered end portion where the thickness of the concrete slab 1 is thinner than an adjacent portion of the concrete slab 1 remote from the corresponding end of the concrete slab 1.
  • the hollow channels of the embodiment as shown in Fig. 1 extend beyond the lowered end portion as seen from the corresponding end of the concrete slab 1 and extend above an upper face of the end portion.
  • Fig. 1 illustrates a manner of connecting the concrete slab 1 to the wall 2.
  • the wall 2 is provided with one or more protrusions 3 that extend upwardly from the wall 2.
  • the protrusions 3 are reinforcing bars that are made of steel.
  • the protrusions 3 may be integrated in the wall 2 upon manufacturing the wall 2 in a factory or mounted on the wall 2 at the construction site.
  • the end portion of the concrete slab 1 of the embodiment of Fig. 1 forms a connecting portion 4 for connecting the concrete slab 1 to the wall 2.
  • the connecting portion 4 comprises a slab contact surface 5 at its lower side, which contacts a wall contact surface 6 in the connected condition.
  • the concrete slab 1 is vertically supported at the wall contact surface 6.
  • Fig. 1 shows that the protrusions 3 of the wall 2 extend through a through-hole 7 of the concrete slab 1.
  • the through-hole 7 is broader than the total thickness of the protrusions 3 that extend through the through-hole 7.
  • the remaining space between the protrusions 3 and the surrounding wall of the through-hole 7 can be filled with grout. Due to this construction the concrete slab 1 is fixed with respect to the wall 2 in a direction parallel to the plane of the concrete slab 1.
  • the concrete slab 1 according to the invention is provided with a hooked reinforcing element 8.
  • the hooked reinforcing element 8 comprises a U-shaped reinforcing bar 8 in the concrete slab 1.
  • the reinforcing bar 8 comprises a fixed portion 8a which is embedded in the concrete of the concrete slab 1, and a hook portion 8b which partly surrounds the through-hole 7.
  • the fixed portion 8a comprises two parallel linear bars in this case.
  • the hook portion 8b is also embedded in the concrete of the concrete slab 1. A different shape of the hook portion 8b is conceivable.
  • the function of the hook portion 8b is to transfer a force between the wall 2 and the concrete slab 1 in a direction parallel to the plane of the concrete slab 2 via the protrusions 3 and the reinforcing bar 8.
  • the U-shape of the reinforcing bar 8 may also be formed by two separate bars having angled end portions, for example.
  • the concrete slab 1 may be provided with a recess at the hook portion 8b which opens at the side of the slab contact surface 5 only.
  • Figs. 2 and 3 also show auxiliary reinforcing bars 9 which extend transversely with respect to the longitudinal direction of the concrete slab 1.
  • One of the auxiliary reinforcing bars 9 is fixed to the reinforcing bar 8.
  • the through-hole 7 is entirely surrounded by reinforcing bars: the hook portion 8b and a portion of one of the auxiliary reinforcing bars 9.
  • the auxiliary reinforcing bars 9 are also fixed to eight U-shaped longitudinal reinforcing elements 10 at the end portion of the concrete slab 1.
  • Each longitudinal reinforcing element 10 extends within a plane that extends in longitudinal direction of the concrete slab 1 and transversely to the plane of the concrete slab 1.
  • a function of the longitudinal reinforcing elements 10 is to reinforce the end portion of the concrete slab 1 against bending near the wall 2 where it is supported.
  • the hooked reinforcing element 8, the auxiliary reinforcing bars 9 and the longitudinal reinforcing elements 10 are part of a lattice member 20 which is embedded in the concrete of the concrete slab 1.
  • the through-hole 7 is applied at a location where the lattice member forms a hook portion 8b.
  • the concrete slab 1 may further comprise reinforcing bars, pipes, wires, prestressing tendons, or the like, at a lower portion of the slab 1 which extend along substantially the entire slab 1 in longitudinal direction thereof, like conventional hollow core concrete slabs.
  • reinforcing bars, pipes, wires, prestressing tendons, or the like at a lower portion of the slab 1 which extend along substantially the entire slab 1 in longitudinal direction thereof, like conventional hollow core concrete slabs.
  • Figs. 1-3 the presence of tendons are illustrated by a horizontal row of small circles near the bottom of the slab 1.
  • the wall 2 and the concrete slab 1 form part of a building.
  • the concrete slab 1 is placed downwardly onto the wall 2 such that the protrusions 3 are inserted into the recess 7 until the slab contact surface 5 of the connecting portion 4 of the concrete slab 1 rests on the wall contact surface 6.
  • the protrusions 3 extend through the through-hole 7 beyond the hook portion 8b in upward direction.
  • the hook portion 8b may be located such and the protrusions 3 may have a length such that when the concrete slab 1 rests on the wall contact surface 6, the hook portion 8b and end portions of the protrusions 3 lie in a plane parallel to the plane of the concrete slab 1. This provides the opportunity to transfer a horizontal force between the wall 2 and the concrete slab 1 via the hook portion 8b and the protrusions 3.
  • Fig. 4 shows a concrete slab 1, not belonging to the invention.
  • the connecting portion 4 is provided with a protruding hook portion 8b.
  • the hook portion 8b protrudes laterally with respect to the longitudinal direction of the concrete slab 1.
  • the concrete slab 1 comprises a second hooked reinforcing element 8' which has a hook portion 8b'.
  • the respective hook portions 8b and 8b' are located at opposite sides of the concrete slab 1. Both hook portions 8b, 8b' are fixed to common fixed portions, in this case parallel bars, that extend transversely through the concrete slab 1 and are embedded in the concrete.
  • Fig. 5 illustrates a situation where two concrete slabs 1 are installed next to each other.
  • the slab contact surfaces 5 of the respective concrete slabs 1 rest on the wall 2.
  • the hook portions 8b, 8b' of the neighbouring concrete slabs 1 can be easily coupled to each other and to the protrusion 3 of the wall 2, as illustrated in Fig. 5 .
  • the protrusion 3 extends through the overlapping hook portions 8b, 8b' which together form a closed loop that surrounds the protrusion 3.
  • Figs. 6-9 show still another embodiment of a concrete slab 1 according to the invention.
  • two concrete slabs 1 have identical connecting portions 4 for connecting the concrete slabs 1 to the wall 2.
  • Their slab contact surfaces 5 rest on the wall contact surface 6 of the wall 2 close to each other.
  • both concrete slabs 1 are vertically supported at the wall contact surface 6.
  • Figs. 8 and 9 clearly show that the protrusion 3 projects upwardly from the wall 2 between the opposite ends of the respective concrete slabs 1.
  • each concrete slab 1 of Figs. 6-9 comprises eight parallel U-shaped longitudinal reinforcing elements 10 which are fixed to the auxiliary reinforcing bars 9.
  • the U-shaped hooked reinforcing bar 8 of Figs. 2 and 3 is omitted.
  • its function is accomplished by at least a part of the auxiliary reinforcing bars 9 and the longitudinal reinforcing elements 10, which is illustrated by broken lines in Figs. 7 and 8 .
  • Each of the formed virtual hooked reinforcing elements has a longitudinal portion that is directed from the end of the concrete slab towards its core and a hook portion that extends transversely to the longitudinal direction of the concrete slab 1. As seen from the end of the slab 1 the through-hole 7 is located beyond the hook portion 8b.
  • the space between the opposite concrete slabs 1 and between the legs of the U-shaped links 11 and the inner walls of the respective through-holes 7 can be filled with grout.
  • the link 11 and the protrusion 3 are fixed to each other by additional means, for example by means of welding.
  • Figs. 10-14 show several concrete slabs 1, not belonging to the invention, which are provided with reinforcing elements at end-portions thereof, but in which a through-hole or recess for receiving a reinforcing element of a supporting structure lacks.
  • Figs. 10 and 11 show U-shaped longitudinal reinforcing elements 12 which are embedded in the concrete slabs 1.
  • the three U-shaped longitudinal reinforcing elements 12 are fixed together by the auxiliary reinforcing bar 9.
  • the reinforcing elements 12 extend within a plane which is substantially parallel to the plane of the concrete slab 1.
  • the embodiment of Fig. 11 comprises two U-shaped longitudinal reinforcing elements 12. Each of the latter elements 12 extends within a plane substantially perpendicularly to the plane of the concrete slab 1.
  • a function of the U-shaped longitudinal reinforcing elements 12 is to improve the bending stiffness of the end portion of the concrete slab 1 when it is supported there by a supporting structure.
  • the slab 1 of Fig. 11 is also provided with extensions, or in this case threaded ends 13, which are fixed to the respective U-shaped longitudinal reinforcing elements 12.
  • the threaded ends 13 can be used for attaching the concrete slab 1 to a supporting structure. This is illustrated in Figs. 12-14 , which show how the concrete slab 1 of Fig. 11 is fixed to the wall 2.
  • a profile 14 which has a Z-shaped cross-section is attached to the concrete slab 1 by means of the threaded ends 13.
  • Fig. 13 shows that a horizontally-oriented lower portion of the profile 14 supports the concrete slab 1, whereas a horizontally-oriented upper portion of the profile 14 is supported by the wall 2.
  • the upper portion of the profile 14 comprises a through-hole 15 through which the protrusion 3 of the wall 2 extends.
  • a horizontal force on the concrete slab 1 is transferred to the wall 2 via the U-shaped longitudinal reinforcing elements 12, the threaded ends 13, the profile 14 and the protrusion 3.
  • the threaded ends 13 may be replaced by pins, bars or the like, without thread.
  • FIG. 15 shows an apparatus 16 for manufacturing a hollow core concrete slab 1.
  • the apparatus 16 comprises a pouring device 17 which can be moved by means of wheels over a work floor 18 in a manufacturing direction X.
  • Fig. 16 shows a cross-section of the apparatus 16 according to Fig. 15 in case when the pouring device 17 is at the location indicated by A-A.
  • the pouring device 17 is provided with channel recess elements 23 for obtaining the hollow channels in the hollow core concrete slab 1 to be made.
  • the channel recess elements 23 are elongated bodies that are fixed to the pouring device 17.
  • the length of a channel recess element 23 may be 1 m, for example, but a longer or shorter channel recess element 23 is conceivable.
  • the pouring device 17 including the channel recess elements 23 move continuously forward and concrete is supplied to the mould simultaneously. As a consequence, at the rear side of the pouring device 17 the intended slab appears, which is shown at the right side of Fig. 15 .
  • the mould parts 22 may be attached to the pouring device 17, as well. This is typically the case when using a slipformer.
  • the apparatus 16 may comprise an extruder.
  • the channel recess elements 23 may be part of a plate-shaped mould through which the concrete is pressed during displacement of the apparatus 16, hence forming the concrete slab 1.
  • the apparatus 16 may be provided with compacting members (not shown) for compacting the concrete.
  • the compacting members may comprise vibrating elements so as to fluidize the concrete.
  • Reinforcement wires 19, tubes, prestressing tendons, or the like, may lay on the work floor 18 before the pouring device including the channel recess elements 23 passes.
  • the wires 19 may be taken up by the pouring device 17 in a known manner such that they have a desired location within the mould when concrete is poured into the mould.
  • Fig. 15 shows that at different location along the work floor 18 the lattice members 20 are placed on the work floor 18. After the pouring device 17 has passed the lattice members 20 they are embedded in the concrete and several concrete slabs 1 can be made by cutting the resulting product on the work floor 18. An intended location of cutting is indicated by reference numeral 21 in Fig. 15 . This means that the resulting slabs 1 at both sides of the location of cutting 21 will have an end portion that is provided with the lattice member 20, such as shown in Figs. 2 , 3 , 6-9 , 12 , 13 . Within the lattice member 20 a recess element can be placed before pouring concrete in order to create a recess or through-hole 7 in the intended slab 1. The staggered end portions of the slabs can be created by removing concrete, which has not fully cured yet, locally.
  • the lattice member 20 can have numerous shapes and dimensions. For example, it may have a cage shape and comprise U-shaped reinforcing elements of which the legs direct from the end portion of the concrete slab 1 towards the core of the slab 1.
  • the lattice member 20 is located outside the channel recess elements 23. In the embodiment of Fig. 16 the lattice member 20 is located below the channel recess elements 23. Before starting pouring of concrete the lattice member 20 may be placed onto the work floor 18 directly or by means of supporting elements (not shown).
  • the concrete slab 1 according to Fig. 4 can also be made by means of the method according to the invention. This is illustrated in Fig. 17 .
  • the hook portions 8b and 8b' extend above the upright mould parts 22.
  • the concrete is poured such that at least a part of the hook portions 8b and 8b' extend above the upper surface of the resulting concrete slab 1.
  • the hook portions 8b and 8b' can be deformed to a horizontal position before installing the concrete slab 1.
  • Fig. 18 shows still another lattice member 20.
  • the lattice member 20 comprises vertical bushes 24 at its opposite side ends.
  • the bushes 24 are provided with internal threads and are located just below horizontal portions of the upright mould parts 22.
  • bolts can be fixed to the bushes 24.
  • a common link for example a steel plate, which is fixed by bolts to respective bushes 24 of adjacent slabs 1.
  • the concrete slab according to the invention can be easily and reliably fixed to a building structure such as a wall, whereas the concrete slabs can be manufactured in a simple manner.

Claims (3)

  1. Dalle de béton à noyau creux (1) incluant des canaux creux qui s'étendent parallèlement à sa ligne centrale longitudinale et une portion d'extrémité en quinconces, comprenant une portion de raccordement (4) à une extrémité de la dalle de béton (1) pour raccorder la dalle de béton (1) à une structure de bâtiment sous la forme d'un mur (2), dans laquelle la portion de raccordement (4) comprend une surface (5) de contact avec la dalle pour entrer en contact avec une surface (6) de contact avec le mur d'un mur (2) et un élément d'armature accroché (8) ayant une portion fixe (8a) qui est noyée dans le béton de la dalle de béton (1) et une portion de crochet (8b) où la dalle de béton (1) est pourvue d'un évidement (7) qui débouche vers l'extérieur de la dalle de béton (1), dans laquelle la portion de crochet (8b) est également encastrée dans le béton de la dalle de béton (1), dans laquelle l'évidement (7) est au moins partiellement entouré par la portion de crochet (8b), dans laquelle l'évidement (7) est un trou traversant, traversé par un élément d'armature (3) du mur (2) et qui est rempli de coulis après installation de la dalle de béton (1) sur le mur (2), dans laquelle l'élément d'armature accroché (8) comprend une barre d'armature en forme de U.
  2. Dalle de béton à noyau creux (1) incluant des canaux creux qui s'étendent parallèlement à sa ligne centrale longitudinale et une portion d'extrémité en quinconces, comprenant une portion de raccordement (4) à une extrémité de la dalle de béton (1) pour raccorder la dalle de béton (1) à une structure de bâtiment sous la forme d'un mur (2), dans laquelle la portion de raccordement (4) comprend une surface (5) de contact avec la dalle pour entrer en contact avec une surface (6) de contact avec le mur d'un mur (2) et un élément d'armature accroché (8) ayant une portion fixe (8a) qui est noyée dans le béton de la dalle de béton (1) et une portion de crochet (8b) où la dalle de béton (1) est pourvue d'un évidement (7) qui débouche vers l'extérieur de la dalle de béton (1), dans laquelle la portion de crochet (8b) est également noyée dans le béton de la dalle de béton (1), dans laquelle l'évidement (7) est au moins partiellement entouré par la portion de crochet (8b), dans laquelle l'évidement est un trou traversant (7), qui reçoit une branche d'un lien en forme de U (11) et qui est rempli de coulis après installation de la dalle de béton (1) sur le mur (2), tandis qu'une autre branche du lien en forme de U (11) peut être reçue par un trou traversant d'une autre dalle à noyau creux, et le lien en forme de U (11) peut être fixé à un élément d'armature (3) du mur (2) qui passe entre des extrémités opposées de la dalle à noyau creux (1) et l'autre dalle à noyau creux, dans laquelle l'élément d'armature accroché (8) comprend un élément d'armature accroché virtuel qui comporte une portion longitudinale qui est dirigée depuis l'extrémité de la dalle de béton vers son noyau et une portion de crochet (8b) qui s'étend transversalement à la direction longitudinale de la dalle de béton (1), dans laquelle, tel qu'on le voit depuis l'extrémité de la dalle (1), le trou traversant (7) est situé au-delà de la portion de crochet (8b).
  3. Dalle de béton (1) selon l'une des revendications précédentes, dans laquelle la portion de crochet (8b) s'étend parallèlement au plan de la dalle de béton (1).
EP12165549.2A 2012-04-25 2012-04-25 Dalle en béton Active EP2657423B1 (fr)

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EP12165549.2A EP2657423B1 (fr) 2012-04-25 2012-04-25 Dalle en béton

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Application Number Priority Date Filing Date Title
EP12165549.2A EP2657423B1 (fr) 2012-04-25 2012-04-25 Dalle en béton

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EP2657423A1 EP2657423A1 (fr) 2013-10-30
EP2657423B1 true EP2657423B1 (fr) 2022-06-08

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2610951C1 (ru) * 2015-12-17 2017-02-17 федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" (ДГТУ) Конструкция усиления железобетонной многопустотной плиты перекрытия
RU2626499C1 (ru) * 2016-05-30 2017-07-28 Федеральное государственное бюджетное образовательное учреждение высшего образования "Донской государственный технический университет" Конструкция усиления железобетонной многопустотной плиты перекрытия
WO2019157041A1 (fr) * 2018-02-07 2019-08-15 Gregg Novick Dalle de béton poreux intelligente
ES2898226T3 (es) * 2018-03-12 2022-03-04 Elastic Potential S L Elemento prefabricado de losa de entrepiso, estructura que comprende elementos prefabricados de losa de entrepiso e instalación para obtener el elemento prefabricado de losa de entrepiso
FI129460B (en) * 2019-02-12 2022-02-28 Elematic Oyj Process for the production of prefabricated concrete products

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AT373659B (de) * 1979-10-30 1984-02-10 Ebenseer Betonwerke Gmbh Stahlbetonplatte fuer decken
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EP2288768A4 (fr) * 2008-01-17 2011-07-06 Milenko Kuzmanovic Panneau de béton préfabriqué
KR20090096813A (ko) * 2008-03-10 2009-09-15 주식회사 대흥 피씨 슬래브의 보 걸침 구조

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EP0643178A2 (fr) * 1993-09-09 1995-03-15 DLC S.r.L. Dispositif de raccordement d'éléments verticaux et horizontaux d'une structure préfabriquée

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