Classifications

• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/84—Walls made by casting, pouring, or tamping in situ
  • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
  • E04B2/8647—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties going through the forms
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/84—Walls made by casting, pouring, or tamping in situ
  • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
  • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms
• • E—FIXED CONSTRUCTIONS
  • E04—BUILDING
  • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
  • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
  • E04B2/84—Walls made by casting, pouring, or tamping in situ
  • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
  • E04B2002/867—Corner details

Definitions

• said structure is made of reinforced concrete.
• concrete is known for its compressive strength, but has a low tensile strength.
• a typical example of concrete weakness is the case of a concrete floor of a floor which is supported only at its contour, the central part of said floor then having a good chance of collapsing under its own weight of the fact its lower part is stretched and the traction forces are not resumed.
• the plate In order to fix this plate to the structure to be manufactured, the plate has anchor rods which are arranged so as to pass through the metal frame.
• the metal reinforcement component becomes complicated, and it is sometimes necessary to twist the anchor rods to pass said anchor rods through the metal frame. It may also be necessary to move the initial position of the plate to be able to pass the anchor rods through the metal frame.
• JP S6047140, US 421 1045 and JP 2012 087538 are also known.
• An object of the invention is to provide a permanent metal formwork for concrete for manufacturing a composite structure metal and concrete which has a high resistance to mechanical forces, on which a plate can be easily fixed, and the maximum load that can to support platinum is certain and important.
• Another object of the invention is to propose a method of manufacturing a concrete structure having a high resistance to mechanical forces, the method being simple to implement, and makes it possible to easily fix a plate to the structure, the load maximum that can support said platen being certain and important.
• a permanent formwork concrete for the manufacture of a composite structure metal / concrete comprising: two walls each formed of at least one metal plate, said walls being parallel, located opposite one another, and spaced apart from each other so as to define an internal volume of the formwork;
• Spacers which connect the two walls and which fix said two walls together, the spacers passing right through said two walls and thus protruding on each side of the formwork;
• the device according to the invention is advantageously completed by the following features, taken alone or in any of their technically possible combinations:
• the assembly bar is adapted to be placed inside the internal volume of the formwork opposite the connection between the two metal plates,
• the formwork comprises a sealing plate disposed on the formwork outside the internal volume and removably fixed to spacers, the sealing plate being located at the ends of two adjacent metal plates over an entire height of the two plates; metal, so that the sealing plate overlaps said two adjacent metal plates over their entire height;
• the formwork comprises an alignment spar disposed on the formwork outside the internal volume and removably fixed to spacers, said alignment spar being attached to two adjacent metal plates over at least half a length of the metal plates.
• the invention also relates to an assembly comprising four permanent concrete forms according to any one of the features set out above, wherein said formwork is assembled so that the assembly is in the shape of a cross and that the internal volumes of said forms communicate with each other.
• said assembly further comprising connecting bars for attaching said forms to each other, a first connecting bar comprising a first end comprising a protuberance and being located in the internal volume of a first form, and a second end comprising a protuberance and being located in the internal volume of a second formwork, a second connecting bar comprising a first end comprising a protuberance and being located in the internal volume of a third form, and a second end comprising a protrusion and being located in the internal volume of a fourth coffra ge.
• the invention also relates to a method of manufacturing a concrete structure characterized in that it comprises the following steps:
• the method may include the following step:
• two walls each formed of at least two metal plates butt end, said walls being parallel, located opposite one another, and spaced apart from each other so as to define an internal volume of the formwork ;
• spacers which connect the two walls and which fix said two walls together
• an assembly bar only deposited on the spacers and / or on the bars facing a connection between two metal plates of the same wall, said assembly bar comprising a protrusion at each of its ends.
• Such formwork may include the optional features described above.
• Figure 1 shows a perspective view of a permanent concrete formwork according to one embodiment before concrete is poured inside
• Figure 2 shows a sectional view of the formwork of Part 1 at a central portion of a metal plate forming a wall of the formwork;
• FIG. 3 shows a sectional view of the formwork of the part 1 at a peripheral portion of metal plates forming a wall of the formwork and showing the connecting bars forming the assembly system for evading the "butt" weld at the end of the sheets;
• Figure 4 shows a possible variant of the formwork of Figure 1;
• FIG. 5 represents a concrete structure obtained by using the formwork of FIG. 1, said structure comprising first and second possible variants of plates fixed to the formwork;
• FIG. 6 represents a concrete structure obtained using the formwork of FIG. 1, said structure comprising a third possible variant of plates fixed to the formwork;
• Figure 7 shows a perspective view of an L-shaped assembly formed by two forms assembled together, before concrete is poured inside;
• Figure 8 shows a sectional view of the assembly of Figure 7;
• Figure 9 shows a perspective view of a T-shaped assembly formed by two formwork assembled together, before concrete is poured inside;
• Figure 10 shows a more detailed view of the assembly of Figure 9 at the connection zone between the forms;
• Figure 1 1 shows a sectional view of all of Figures 9 and 10;
• Figure 12 shows a perspective view of a cross-shaped assembly formed four forms assembled together, before concrete is poured inside;
• Figure 13 shows a sectional view of the assembly of Figure 12
• FIG. 14 represents in schematic form a possible implementation of the method of manufacturing a concrete structure according to the invention. Description of the invention
• a permanent concrete formwork for the manufacture of a metal / concrete composite structure comprises two walls 20 and 30 which are located opposite one another and which are parallel between them.
• the two walls 20 and 30 are spaced apart so that the formwork 10 comprises an internal volume 40 delimited by said two walls 20 and 30.
• the two walls 20 and 30 each comprise at least one metal plate 50.
• the walls 20 and 30 each comprise two metal plates 50 arranged one after the other in the same plan.
• the metal plates 50 may be for example steel.
• the formwork 10 comprises spacers 60.
• the spacers 60 pass right through said two walls 20 and 30 projecting from each side of the formwork 10.
• the spacers 60 are intended to be taken in the concrete once the concrete has been poured inside the volume 40 of the formwork 10.
• a plurality of spacers 60 is distributed over the entire surface of the walls 20 and 30 of the formwork 10, preferably in a regular manner.
• the spacers 60 make it possible to withstand the mechanical stresses of the formwork 10.
• the spacers 60 also make it possible to ensure that the spacing between the walls 20 and 30 is constant.
• each metal plate 50 is fixed to the metal plate 50 facing it by at least 3 spacers 60.
• a first spacer 60 is located at a first end of the metal plate 50
• a second spacer 60 is located at a second end of said metal plate 50 opposite the first end
• a third spacer 60 is located in a central zone of said metal plate 50.
• the bolts that fix the spacers 60 to the walls 20 and 30 of the formwork 10 may be formed by 2 nuts.
• the formwork 10 comprises an assembly bar 80 situated inside the internal volume 40 facing the connection between two metal plates 50 forming the walls 20 and 30.
• the formwork 10 comprises a plurality of assembly bars 80.
• the assembly bar 80 is located at the connection between two metal plates 50 forming the same wall 20 or 30, so as to be opposite the two metal plates 50 forming said same wall 20 or 30.
• a portion of the connecting bar 80 is located facing a peripheral zone of a first metal plate 50 forming a wall 20 or 30, and a second part of said assembly bar 80 is located facing a peripheral zone of a second metal plate 50 forming said same wall 30.
• Assembly bar 80 includes a first end 81 and a second end 82 both of which comprise a protuberance.
• the protuberances at the ends 81 and 82 of the assembly bar 80 may be formed by nuts screwed to the ends 81 and 82 of said assembly bar 80.
• the assembly bar 80 serves to maintain the position in position. metal plates 50 forming the same wall 20 or 30. Indeed, when the concrete is poured inside the internal volume 40 and the latter has hardened, the presence of the assembly bar 80 can create a mechanical connection of the metal plates 50 forming the same wall 20 or 30.
• the assembly bar 80 and preferably only deposited on the bars 70 and / or the spacers 60 so that its installation in the formwork 10 is particularly easy.
• the assembly bar 80 is thus not attached to the struts 60 to the bars 70.
• the assembly bar 80 can be fixed by a plastic insert to the bars 70, to the struts 60, or to the walls 20, 30.
• the assembly bar 80 may also be fixed by a wire, for example a wire, the bars 70, the struts 60, or the walls 20,30 to hold it in position.
• the formwork 10 may also include an alignment spar 91 whose function is to ensure that the metal plates 50 forming the same walls 20 or 30 are in the same plane.
• the formwork 10 advantageously comprises at least one alignment spar 91 on each of its walls 20 and 30.
• FIGS. 5 and 6 show a composite metal / concrete structure 100 which has been manufactured with the permanent concrete formwork according to the invention.
• the structure 100 metal / concrete comprises a concrete layer B which is surrounded by the walls 20 and 30 of the formwork 10.
• the fact that the concrete layer B is surrounded by the formwork 10 allows the structure 100 to have great resistance to mechanical forces without being reinforced concrete.
• FIGS. 5 and 6 is illustrated a plate 1 10a, 1 10b, 1 10c which is fixed to said concrete structure 100.
• This plate 1 10a, 1 10b, or 1 10c makes it possible to fix elements of the second workpiece to said structure in concrete.
• the use of the formwork 10 makes it easy to fix the plates 1 10a, 100b, 1 10c to the structure 100 by fixing them by bolting to the ends of the spacers 60 which project out of the concrete structure 100.
• the assembly 200 comprises connecting bars 81 and 82 for fixing the forms 1 1 and 12 between them.
• a first connecting bar 81 comprises a first end which is fixed to a wall 20 of the first formwork 1 1, and a second end comprising a protuberance and which is located inside the internal volume 40 of the second formwork 12.
• a second bar linkage 82 comprises a first end which is fixed to a wall 20 of the second formwork 12, and a second end comprising a protuberance and which is located inside the internal volume 40 of the first formwork January 1.
• the connecting bars 81 and 82 are preferably bars similar to the connecting bars 80 described in FIGS. 1 to 4, the said connecting bars 81 and 82 being metal bars, generally of steel, the two ends of which are threaded. in order to screw a nut.
• FIGS. 9, 10 and 11 show a possible variant in which a first formwork 13 and a second formwork 14 are assembled to form a T-shaped assembly 210.
• the first formwork 13 and the second formwork 14 conform to FIG. embodiment shown in Figures 1 to 4.
• the first formwork 13 and the second formwork 14 are inclined with respect to each other, and the second formwork 14 is fixed by one of its ends to a central region of the first formwork 13.
• the internal volumes 40 of the forms 13 and 14 communicate with each other.
• the forms 13 and 14 are inclined at an angle of 90 °.
• the first formwork 13 comprises a first wall 20 which comprises two metal plates 50 which are located facing a metal plate 50 forming a second wall 30 of said first formwork 13.
• the second formwork 14 is fixed between the two metal plates 50 of the first wall 20 of the first formwork 13.
• the assembly 210 may comprise a plurality of first connecting bars 83 and a plurality of second connecting bars 84. number of connecting rods 83 and 84 is chosen to obtain the desired strength.
• the T-shaped assembly 210 may also be formed of at least three forms, this variant comprising two forms in place of the first formwork 13.
• the assembly 210 comprises connecting bars for fixing the forms 15, 16, 17 and 18 between them.
• a second connecting bar 86 comprises a first end comprising a protuberance which is located in the internal volume 40 of the third formwork 17, and a second end comprising a protuberance which is located in the internal volume 40 of the fourth formwork 18.
• the assembly 210 may comprise a plurality of first connecting bars 85 and a plurality of second connecting bars 86.
• the number of connecting bars 85 and 86 is chosen to obtain the desired mechanical strength.
• the protuberances formed at the ends of the connecting bars 85 and 86 may be formed by screwed nuts at the ends of said connecting bars 85 and 86.
• the connecting bars 85 and 86 may be similar to the connecting bars 81 and 82 illustrated in FIGS. and 8.
• the method according to one possible implementation of the invention comprises the following steps:
• Concrete formwork can be one of the variants described in the previous figures.
• the method may also comprise a step in which formwork is assembled to form an assembly comprising a plurality of forms, for example in the variants illustrated in FIGS. 9 to 13.
• the number of formwork assembled and the shape of the assembly are adapted in depending on the shape of the desired metal / concrete structure. Concrete is poured once the forms are assembled.

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• Engineering & Computer Science (AREA)
• Architecture (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Civil Engineering (AREA)
• Structural Engineering (AREA)
• Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
• Laminated Bodies (AREA)
• Moulds, Cores, Or Mandrels (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=58547602

Family Applications (1)

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Citations (8)

Family Cites Families (32)

• 2016
  • 2016-12-21 FR FR1663017A patent/FR3060622B1/fr active Active
• 2017
  • 2017-12-21 WO PCT/EP2017/084138 patent/WO2018115307A1/fr unknown
  • 2017-12-21 CN CN201780086938.1A patent/CN110337519B/zh active Active
  • 2017-12-21 US US16/471,890 patent/US20200123768A1/en not_active Abandoned
  • 2017-12-21 EP EP17818166.5A patent/EP3559364B1/fr active Active
• 2019
  • 2019-06-20 SA SA519402212A patent/SA519402212B1/ar unknown

Patent Citations (8)

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