Together for the construction of a prefabricated building

Abstract

Assembly (1) for the construction of a prefabricated building, said assembly (1) comprising at least one stringer (2), one prefabricated wall panel (3) and one prefabricated slab (4). The beam (2) supports the slab (4) and the wall (3). The slab (4) and the wall (3) are positioned side by side on said beam (2) without touching to create a gap. The slab (4) has a peripheral shoulder (6) defining a peripheral upper gap that communicates with the gap between the slab (4) and the wall (3) to form a filling area suitable for receiving fill material. The wall (3) has an anchor tube positioned at least partially inside said wall (3), and the beam (2) is equipped with at least two stiffeners projecting from the beam (2), one extending inside the anchor tube of the wall (3), the other into the filling area (8). Figure for the abbreviation: Fig. 1

Description

Title of the invention: Assembly for the construction of a prefabricated building

[0001] The present invention relates to the field of construction. The invention relates to an assembly for the production of a prefabricated building and a method for assembling such an assembly.

[0002] The invention relates in particular to an assembly for the construction of a prefabricated building, said assembly comprising at least one stringer, a prefabricated wall panel and a prefabricated slab.

[0003] To manufacture buildings such as detached houses, it is known to use prefabricated elements, including prefabricated walls and slabs.

[0004] Construction methods with such prefabricated elements are proposed in documents CN101503888, FR2766852, WO1997035079, and WO1990015202. These methods are not, however, entirely satisfactory, particularly in terms of ease of assembly and mechanical resistance.

[0005] There is a need to further improve the manufacture of buildings from prefabricated elements to facilitate assembly without loss of mechanical strength.

[0006] One object of the invention is to provide an assembly for the realization of a prefabricated construction whose design allows for easy assembly without loss of mechanical resistance.

[0007] To this end, the invention relates to an assembly for the construction of a prefabricated building, said assembly comprising at least one stringer, a prefabricated wall panel and a prefabricated slab, characterized in that the stringer supports the slab and the wall, in that the slab and the wall are positioned side by side on said stringer in a non-contiguous manner to provide a free space, in that the slab is provided with a peripheral shoulder delimiting a peripheral upper void space communicating with the space left free between the slab and the wall to form a filling area suitable for receiving a filling material, in that the wall is provided with an anchor tube positioned at least partially inside said wall and in that the stringer is equipped with at least two stiffeners projecting from the stringer to extend, one, inside the anchor tube of the wall, the other in the filling area.

[0008] In the present invention, the positioning of the slab and the wall is simple because they are positioned side by side on said stringer. Furthermore, a good mechanical connection is ensured between the slab, the wall, and the stringer by means of said at least two stiffeners projecting from the stringer, one extending inside the wall's anchor tube, the other into the infill zone.

[0009] The filling area includes at least the peripheral upper void space and the space left free between the slab and the wall. The presence of a space between the slab and the wall suitable for being filled with infill material offers the advantage of being able to position the various prefabricated elements simultaneously without an intermediate concreting step, thus saving time and simplifying site logistics.

[0010] According to one embodiment of the invention, the wall comprises a reinforcement extending projecting from the wall towards the filling area.

[0011] According to one embodiment of the invention, the stringer is a solid reinforced concrete beam.

[0012] According to one embodiment of the invention, each stiffener is in the form of a metal bar or rod.

[0013] According to one embodiment of the invention, at least one of the metal bars or rods is bent at least once.

[0014] Said stiffener extending inside the wall anchor tube can be a metal bar with a diameter between 10 and 30 mm, in particular substantially equal to 20 mm.

[0015] According to one embodiment of the invention, the slab is a prefabricated reinforced concrete slab and / or the wall is a prefabricated reinforced concrete wall.

[0016] The stringer can extend along a longitudinal axis.

[0017] The stringer advantageously comprises a top face, a bottom face and two lateral faces.

[0018] The slab and the wall are advantageously positioned side by side on the upper face of said stringer in a non-contiguous manner.

[0019] The wall can extend in a substantially vertical plane.

[0020] The slab can extend in a substantially horizontal plane.

[0021] The assembly may comprise a plurality of slabs, in particular between 2 and 30.

[0022] The assembly may comprise a plurality of stringers, in particular between 4 and 20.

[0023] The assembly may comprise a plurality of walls, in particular between 4 and 20.

[0024] According to one embodiment of the invention, the tube extends between a first opening of the wall, in particular an opening on a lower face of the wall, and a second opening of the wall, in particular an opening on a lateral face of the wall.

[0025] The slab may have a substantially polygonal shape, in particular rectangular.

[0026] The invention further relates to a method for assembling an assembly comprising at least one stringer, a prefabricated wall panel and a prefabricated slab for the construction of a building, characterized in that said assembly conforms to that described above, said method comprises a step of positioning the slab and the wall side by side in a non-contiguous manner on the contiguous stringer to provide a free space, in that the slab is provided with a peripheral shoulder delimiting a peripheral upper void space communicating with the space left free between the slab and the wall to form a filling zone, and in that the wall is provided with an anchor tube positioned at least partially inside said wall and the stringer being equipped with at least two stiffeners projecting from the stringer, one extending inside the anchor tube of the wall, the other into the filling zone,The said process comprises a step of filling the said filling zone with a filling material and a step of filling the anchor tube with a shrinkage-free mortar.

[0027] According to one embodiment, the process includes a preliminary step of on-site fabrication of at least two foundations, the process including a step of positioning said at least one stringer on said at least two foundations.

[0028] According to one embodiment, the filling material can be concrete. Brief description of the drawings

[0029] The invention will be better understood upon reading the following description of exemplary embodiments, with reference to the accompanying drawings in which:

[0030] [Fig-1] shows, partially, in cross-section, an example of an assembly according to the invention,

[0031] [Fig.2] is an enlargement of [Fig.1] according to II,

[0032] [Fig.3] represents, schematically and in perspective, a step in a method of assembling an assembly according to the invention,

[0033] [Fig.4] represents, schematically and in perspective, another step in a method of assembling an assembly according to the invention,

[0034] [Fig. 5] schematically and in perspective represents another step in a method of assembling an assembly according to the invention, and

[0035] [Fig.6] represents, schematically, partially and in perspective, another step of a method of assembling an assembly according to the invention.

[0036] In the following description, identical elements or elements with identical functions bear the same reference numeral. For the sake of brevity, they are not described opposite each figure; only the differences between the embodiments are described.

[0037] In the figures, the actual proportions have not always been respected, for the sake of clarity.

[0038] Figures 1 and 2 illustrate an assembly 1 for the production of a prefabricated construction according to the invention.

[0039] Assembly 1 comprises at least one prefabricated stringer 2, one prefabricated wall 3 and one prefabricated slab 4.

[0040] The stringer 2, the wall 3 and the slab 4 are, in this example, made of reinforced concrete, in particular concrete reinforced by steel reinforcement.

[0041] The stringer 2 is a long, thin element extending along a longitudinal axis and having a substantially rectangular cross-section. The stringer 2 comprises a top face 21, a bottom face 22, and two lateral faces 23.

[0042] The wall 3 and the slab 4 are positioned side by side on the upper face 21 of the stringer 2 without being joined together to create a space 5, for example with a width L between 5 mm and 60 mm, in particular a width L of approximately 50 mm. The stringer 2 thus supports the wall 3 and the slab 4.

[0043] In this example, wall 3 extends in a substantially vertical plane.

[0044] In this example, slab 4 extends in a substantially horizontal plane.

[0045] The slab 4 includes a shoulder 6 at its periphery which delimits an upper empty space 7 in communication with the space 5. The spaces 5 and 7 thus form a filling zone 8 suitable for receiving or, after manufacture, receiving a filling material, in particular concrete.

[0046] As illustrated in [Fig.2], the filling zone 8 can have, in cross-section, a horizontal L-shape.

[0047] The stringer 2 also includes a first stiffener 11, in this example a metal rod, extending into the space 5 formed between the wall 3 and slab 4 positioned side by side without being joined. In particular, the stiffener 11 includes a first portion 111 extending vertically and embedded in the concrete of the stringer 2, a second portion 112 extending vertically into said space 5 in continuity with the first portion 111, and a third portion 113, connected by a 90° bend to the second portion 112, extending into the upper void 7 delimited by the shoulder 6 of the slab 4.

[0048] For example, the combined length of the first portion 111 and the second portion 112 is between 40 cm and 60 cm.

[0049] For example, the length of the third portion 113 is between 30 and 60 cm.

[0050] The diameter of the rod of the first stiffener 11 can be substantially constant, in particular between 6 and 10 mm.

[0051] The closed space 5 between the wall 3 and the slab 4 positioned side by side in a non-contiguous manner allows the passage of the stiffener 11 in the upper empty space 7 delimited by the shoulder 6 of the slab 4 and can also allow a play in the positioning of the slab 4, facilitating the construction of the assembly 1.

[0052] The stringer 2 also includes a second stiffener 10 which extends vertically into an anchor tube 9 positioned at least partially, in this example entirely, inside the wall 3.

[0053] In this example, the tube 9 extends between a lower opening 91 on the lower face of the wall 3 and a lateral opening 92 on a lateral face of the wall 3 facing the interior of the structure. The tube 9 comprises a straight portion 93 extending vertically from the lower opening 91 to a curved portion 94 of the tube 9, the curved portion 94 extending from the lateral opening 92.

[0054] The second stiffener 10 extends vertically over a first portion 101 in the straight portion 93 of the tube 9 over at least 80% of its length, vertically over a second portion 102 in continuity with the first portion 101 and horizontally over a third portion 103, connected by a 90° bend to the second portion 102. The second portion 102 and the third portion 103 are advantageously embedded in the concrete of the stringer 2.

[0055] The second stiffener 10 can be formed by a bar with a diameter between 10 and 30 mm, in particular a diameter of about 20 mm.

[0056] In the example illustrated in [Fig.2], the wall 3 includes a rod 30 comprising an L-shaped portion 31 embedded in the concrete and a portion 32 extending horizontally into the filling zone 8.

[0057] A method for assembling an assembly according to the invention is described in Figures 3 to 6.

[0058] In a first step, stringers 2, walls 3 and slabs 4 are prefabricated, for example in a factory.

[0059] On the installation site of assembly 1, earthworks are carried out to obtain a substantially level surface. Holes are then made to allow for the on-site fabrication of reinforced concrete foundations 40. The site preparation does not involve a complete excavation for the slab, or possibly a crawl space. A smaller quantity of earth therefore needs to be removed.

[0060] Next, each end 25 of each stringer 2 is fixed on a block 40. Each block 40 thus supports two ends 25 of two stringers 2.

[0061] As illustrated in [Fig.4], the stringers 2 include the stiffeners 10 and 11. In this example, at this stage of the process, the stiffeners 11, which are intended to be positioned in the different filling zones 8, extend substantially vertically.

[0062] This substantially vertical positioning of the stiffeners 11 allows, as illustrated in [Fig.5], the installation of the slabs 4 on the stringers 2.

[0063] In this example, the slabs 4 have a substantially rectangular shape, with a shoulder 6 provided on each peripheral edge.

[0064] In a further step, illustrated in [Fig.5], the walls 3 are positioned on the stringers 2 so as to be next to the slabs 4, the stiffeners 10 being inserted into the tubes 9.

[0065] As illustrated, the walls 3 may include bays 35 configured to allow the installation of a wall element, such as a door or a window.

[0066] In a step illustrated in [Fig.6], the stiffeners 11 are bent so as to form an elbow and extend into the filling areas 8, as described previously.

[0067] Then, concrete is poured into the filling zones 8 and shrinkage-free mortar into the tubes 9 to fix the assembly 1. Advantageously, as illustrated in [Fig.1], the upper face 81 of the layer of concrete poured into the filling zone 8 is in continuity with the upper face 82 of the adjacent slab 4.

[0068] The assembly of set 1 is simple, quick, and helps to limit the environmental impact of the construction site by limiting fieldwork and residual waste.

Claims

Demands

1. Assembly (1) for the construction of a prefabricated building, said assembly (1) comprising at least one beam (2), a prefabricated wall panel (3) and a prefabricated slab (4), characterized in that the beam (2) supports the slab (4) and the wall panel (3), in that the slab (4) and the wall panel (3) are positioned side by side on said beam (2) in a non-contiguous manner to provide a free space (5), in that the slab (4) is provided with a peripheral shoulder (6) delimiting a peripheral upper void space (7) communicating with the space (5) left free between the slab (4) and the wall panel (3) to form a filling zone (8) suitable for receiving a filling material, in that the wall panel (3) is provided with an anchor tube (9) positioned at least partially inside said wall panel (3) and in that the beam (2) is equipped with at least two stiffeners (10, 11) projecting from the stringer (2) to extend one (10),inside the wall anchor tube (9), the other (11) in the filling zone (8).

2. Assembly (1) according to claim 1, characterized in that the wall (3) comprises a reinforcement (12) extending projecting from the wall (3) towards the filling zone (8).

3. Assembly (1) according to any one of claims 1 or 2, characterized in that the stringer (2) is a solid reinforced concrete beam.

4. Assembly (1) according to any one of claims 1 to 3, characterized in that each stiffener (10, 11) is in the form of a metal bar or rod.

5. Assembly (1) according to claim 4, characterized in that at least one of the metal bars or rods is bent at least once.

6. Assembly (1) according to any one of claims 1 to 5, characterized in that the slab (4) is a prefabricated reinforced concrete slab and in that the wall (3) is a prefabricated reinforced concrete wall.

7. Assembly (1) according to any one of the preceding claims, characterized in that the tube (9) extends between a first opening (91) and a second opening (92).

8. A method for assembling an assembly (1) comprising at least one stringer (2), a prefabricated wall panel (3) and a prefabricated slab (4) for constructing a building, characterized in that said assembly (1) conforming to any one of claims 1 to 7, said method comprises a step of positioning the slab (4) and the wall panel (3) side by side in a non-contiguous manner on the contiguous stringer (2) to provide a free space (5), in that the slab (4) is provided with a peripheral shoulder (6) delimiting a peripheral upper void space (7) communicating with the space left free between the slab (4) and the wall panel (3) to form a filling zone (8), and in that the wall panel (3) is provided with an anchor tube (9) positioned at least partially inside said wall panel (3) and the stringer (2) is equipped with at least two stiffeners (10, 11) projecting from the stringer (2) to extend one (10),inside the wall anchor tube (9) (3), the other (11) in the filling zone (8), said process comprises a step of filling said filling zone (8) with a filling material and a step of filling the anchor tube (9) with a shrinkage-free mortar.

9. A method according to the preceding claim, characterized in that it comprises a preliminary step of manufacturing on site at least two foundations, and in that it comprises a step of positioning said at least one stringer (2) on said at least two foundations.

10. A method according to any one of claims 8 and 9, characterized in that the filling material is concrete.

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