FR2516962A1 - Sectional flooring panel shuttering - comprises frame supporting trellis and sheet of synthetic material over which concrete is cast - Google Patents

Abstract

The modular flooring panel comprises a sheet of synthetic material (FC) placed over a support grill (TS) forming the bottom of a shuttering element over which a slab of concrete is cast. The shuttering element is supported by a frame consisting of two parallel rails (PF) containing regularly spaced cavities into which the ends of transverse floorboards (TP) engage. The trellis (TS) and the sheet (FC) are secured to the frame by clips.

Description

 The present invention relates to the building, more particularly the construction, in particular of individual houses.

 In patent application NO 79 09 041, published under the number 2 453 955, the applicant has already proposed a device for constructing floors articulated around elements comprising a sheet of synthetic material, placed on a support trellis, the latter being advantageously made of welded metal rounds. In this proposal, the shuttering element is produced by the effect of a frame supported by a metal box.

 This element requires only lifting means, while being fairly light and fairly easy to transport.

 Although allowing real progress, the realization of patent application NO 79 09 041 has the disadvantage of comprising relatively heavy boxes (of the order of 120 kg) and leading to a relatively complex manufacturing.

 The present invention aims to provide a construction device which requires no mechanical lifting means, while being significantly reduced in weight.

 Another object of the invention is to provide a modular building element, of reduced size, allowing greater architectural diversity.

 The invention also aims to improve the productivity of construction operations by transferring a significant part of the worksite tasks to the workshop.

 The invention also aims to provide a construction device which allows, in a simple way, a seduction of the energy consumption of housing.

 On the other hand, the invention aims to provide a construction device which is easily compatible with the installation of vertical walls or light roofs.

 Finally, the invention aims to allow a simplified and rapid assembly of the entire framework of an individual dwelling, as well as the continuous pouring of concrete to achieve the high floor and the low floor of a construction.

According to a first characteristic of the invention, the proposed construction device is articulated around construction elements with support trellis and sheet of synthetic material, intended in particular for formwork of floors with membrane effect. These construction elements are rod-joint panels comprising - in one direction, two rigid elongated profiles,
substantially parallel, and - in the other direction, flat sleepers of the kind
board, regularly distributed, and engaged
in holes made at regular intervals
in the side wall of the profiles.

 In most cases, the mesh and the polyethylene film are stretched and fixed to the profiles and the crosspieces by fixing means such as stapling.

 According to another characteristic of the invention, the profiles are angle brackets in the shape of 2, the groin of their cross section receiving said orifices, while holes in the upper branch of the angle iron are regularly distributed, located at said level holes, and allowing the fixing of the crosspieces.

 Very advantageously, the lower branch of the profiles has other holes of not equal or multiple pitch than that of the upper holes. Preferably, these lower holes are offset from the upper holes.

 Under these conditions, another aspect of the invention involves a metal floor frame with primary and secondary elements. The secondary elements then include joists fitted with studs or pairs of studs turned upwards, at the same pace as the lower holes.

 In addition to the fixing of the above-mentioned self-forming construction elements, or else the fixing of a non-load-bearing ceiling, these studs serve as metal concrete connectors, and therefore play a positive role in the reinforcement.

 For their part, the primary framework elements include smooth fixing bolts mounted on stringers, or on gantries supported by them.

 More precisely, in a construction comprising at least two load-bearing floors, the device comprises a vertical frame forming a gantry and comprising posts fixed in the lower part on a plate, and comprising at the head a platform capable of supporting the aforementioned floor frame , as well as fixing beams forming dies, which extend perpendicular to the joists.

 According to another advantageous aspect of the invention, the primary and secondary framework of the floor (s) is provided on the underside with a thermal insulating coating such as a plastic foam and / or acoustic absorbent such as glass wool. , while a thickness of insulating material is fixed on the underside on the crosspieces of the pBuwauxemDdules.

Other characteristics and advantages of the invention will appear on reading the detailed description which follows, and on examining the appended drawings, in which - Figure 1 is a perspective view of a panel
floor module according to the invention, before assembly; - Figure 2 is a perspective view of the profile PF of
Figure 1 - Figure 3 is a perspective view, partially
exploded view of a concrete floor according to the invention - Figure 4 is a perspective view before assembly
a frame of a detached house with two floors
carriers; and - Figures 5 to 13 illustrate in more detail some
elements of Figures 1 to 4.

The self-shuttering deck of Figure 1 has - in the lower part, crosspieces TP, for example
country fir boards, engaging on both sides and
else in metallic PF or material profiles
synthetic; - above a welded TS mesh, which can be for example
in square or rectangular thread, - in the upper part, a membrane forming a waterproof screen
in polyethylene rope, such as those known under the ncm of 'XPOLYANE'
or under the nc of 'NWUSN GRInTE> C ", presenting a
excellent resistance to tearing and puncturing.

 The fixing of the mesh and the membrane on the lower support is done by staples and galvanized points, and / or by special adhesive polyethylene / steel.

 The manufacturing of the modular panels of the self-shuttering decking (as well as of non-modular complementary panels) can be done entirely in the workshop, on a preparation bench possibly including tabs for positioning sleepers.

The manufacturing operations are then as follows (fig. 1A): 1) laying boards or cross members approximately at
not intended ; 2) pose PF profiles which come to engage on the
boards; the PF profiles are then kept at
inclined angle as shown in Figure 1A.

Note that the boards are engaged in the holes such as PF 21 PF 23 (a dei-oriice has
the PF 20 end for a half-notched board).

The nailing of the profiles on the boards can be done
by the upper holes PF 10 to PF 13, respectively
centered on the orifices PF 20 to PF 23, or else by
clan pistol.

3) laying the welded mesh on the boards so
such that the distribution wire is in the axis of the
half-frame, or symmetrical with respect to this axis: the
trellis comes between the boards and the branches
upper PF1 of the PF profiles 4) unwinding of the polyethylene film, which overflows for example
15 cm on the panel in each direction 5) after tensioning the mesh and the film if
necessary, fixing by stapling at the 4 angles; then
stapling of the welded mesh and the membrane with the
ENZ profiles at each end of the board, and all
the 30 cm on each of the boards.

 Thus are obtained the module panels serving as self-forming floor elements with collaborating slabs. Such panels are visible in Figure 3, one of which before mounting. This same figure shows how the module panels are connected to the vertical studs GJ fixed laterally or on top of the joists SF or SP. For two contiguous longitudinal panels, the membrane projecting from the end of one is overlapped on the other.

We see that the invention allows, in a very
simple, the realization of a floor using self-shuttering panels mounted on joists of a special kind while very simply obtaining a structure with collaborating slabs without secondary bending in the GJ studs or connectors, which will be fully embedded in concrete. The assembly is very fast, and a concrete slab can then be poured continuously.

 In a still more elaborate version, the invention allows the mounting of the framework of a dwelling with two floors, then the pouring of the concrete continuously.

 The framework is illustrated in Figure 4: we start, in the lower part, concrete sills marked LG.

At the edge of it are placed metal rails
LI, provided at regular intervals with U-shaped irons turned upwards, on which will be able to come and bolt the joists SF (Figure 12) of the type with transversely bolted end.

The sill is also provided with squares or support plates PF (figure 5), fixed above the sill by nuts PL 10 and PL 11 on threaded rod PL 12, the latter being mounted on a self-drilling dowel
CAF introduced in the sill. The PL plate is placed in a blowing bath and positioned to be flush with the zero level provided for the finishing concrete.

On the PL square (Figure 6) is fixed by bolting a U AP 1 iron, held by a counter plate
AP 2 and an AP 20 bolt on the PL 12 threaded rod. In turn, the U receives with transverse fixing (AP 10 and AP 11 bolts) vertical posts whose head is symmetrical - central post PC (Figure 7) or asymmetrical - peripheral post PP (figure 8).

 As shown in Figures 4, 7 and 8, the column heads include a plate, consisting for example of two sections of flat tubes welded side by side (P 11 and P 12).

 On this plate is mounted a rectangular arch centered PC 13 (Figure 7), or off center PP 13. (Figure 8). The sides of the arch are provided with holes such as P 14 and P 15.

 Figure 4 shows that these holes will allow to attach recessed special beams forming FI dies (Figures 4 and 9) running parallel to the sill, and / or joists SP provided at the end with an axial bolting iron.

The FI die (Figure 9) consists of a FI 10 base plate carrying jumpers at regular intervals
FI 11, drilled laterally F 12 at the same level as P 14 or P 15. Above, the jumpers support concrete reinforcement wires F 21 and F 22, running parallel to the tube FI 10.

 Between the jumpers PP 13 or PC 13, posts will come from the cross beams, which are, with the vertical edges of the floors, the only non-self-shuttering elements ".

Finally, the joists (SP 10; Figure 10) or demisolives (SP 11; Figure 11) of the first level floor
SP are fixed, directly or through the channels FI, on the poles PC 13 of the posts. Corner angles CA (figure 13) are provided at the four corners of the floors.

 It immediately appears that the entire framework of an individual house can be assembled on site in a few hours from prefabricated elements.

Then the self-forming floor module modules are installed, and some additional formwork If necessary.

 After laying the reinforcement of the floors, the cross beams and the edges, the continuities, which use the studs of the joists and in particular the FI channels and the poles (P 14) of posts, we carry out the incorporation of equipment, fixings and various reservations : for example we set up reservations by pointing on the formwork boards.

 The concrete pouring of the floor gods can then be carried out continuously: the great simplification of the construction obtained according to the invention is immediately carried out.

 We also see that the structure with gantries and dies simply allows for the bracing of constructions with 1 or 2 levels, of the individual house type, and also cantilevers.

 In addition, the invention applies particularly well to the production of insulating floors: under the module panels intended for concrete formwork, insulating panels of the polystyrene or glass wool type (if applicable) have been fixed in the workshop.

In this case, the primary (FI in particular) and secondary (SP or SF) framework of the floor has a plastic foam covering of the Klegecell type on the underside. In addition, for floors supported by a vertical peripheral concrete structure, polyurethane foam insulation is installed on the edge of the floor, which is held to the adjacent concrete structure by bonding plates. We also do the right of the cross beams, horizontally on the sill, except at the level
continuity of beams or columns.

 The invention therefore also allows the simple and economical production of floors with high thermal insulation power (coefficient K down to 0.3), and also acoustic (double wall effect with interstitial absorbent material).

In a preferred embodiment,
the center distance between boards is 30 cm, the boards
your measuring 10 cm wide (for example 22 mm
thick and 90 cm long). The welded mesh is at
steps of 10 cm in length for 30 cm transversely
the transverse wire then falls at an equal distance between
two boards and attaches to the vertical studs
joists Alternatively, a trellis with a 10 x 10 cm pitch
is usable. Finally, the length of the module panels
may advantageously be 2.70 m. That works
good for making 8 mm thick concrete slabs.

The invention allows the production of - intermediate floors, - insulating floors on crawl spaces or even on
unheated room, - combination of two floors of these types with one
vertical structure, - possibly, continuous thermal break between each
floor of this type and a vertical envelope to
high insulation.

Claims (10)

 1. Construction device, of the type comprising a construction element comprising a sheet of synthetic material (FC) disposed on a support trellis (TS), and capable of forming the bottom of a formwork for the pouring of a concrete slab, characterized in that the building element is a module panel comprising - in one direction, two rigid elongated profiles (PF),  substantially parallel, and - in the other direction, flat crosspieces (TP) of the  planchette genre, regularly distributed, and engaged  in holes made at regular intervals in  the side wall of the profiles (PF).  2. Construction device according to claim 1, characterized in that the trellis (TS) and the polyethylene film (FC) are stretched and fixed to the profiles and the sleepers by fixing means such as stapling.  3. Construction device according to one of claims 1 and 2, characterized in that the profiles (PF) are Z-shaped angles, the aryl of their cross section receiving said orifices, while are made in the upper branch of the angle iron regularly distributed bores, located at said orifices, and allowing the fixing of the crosspieces.  4. Construction device according to claim 3, characterized in that the lower branch of the profiles (PF) comprises other bores of not equal or multiple of that of the upper bores.  5. Construction device according to claim 4, characterized in that the lower holes are offset from the upper holes.  6. Construction device according to one of claims 4 and 5, in which there is provided a metal floor frame with primary general support elements and secondary elements, characterized in that the secondary elements include joists (SF , SP, UF) fitted with pairs of pins turned upwards, at the same pace as the lower holes.  7. Construction device according to claim 6, characterized in that the joists comprise tubes with rectangular cross section (SF, SP) or U-shaped profiles (UP).  8. Construction device according to one of claims 6 and 7, characterized in that the primary framework elements comprise smooth fixing bolts (LI + UF or FI) mounted on stringers (LG) or on gantries (PC, FI) supported by them.  9. Device according to one of claims 6 to 8, comprising at least two floors, characterized in that it comprises a vertical frame forming a gantry and comprising posts (PC, PP) fixed in the lower part on a plate (PL , AP1, AP2), and comprising at the top a platform capable of supporting the aforementioned floor framework, as well as fixing beams forming dies (FI), which extend perpendicular to the joists (SP).  10. Device according to one of claims 6 to 9, characterized in that the primary and secondary framework of the floor (s) is provided on the underside with a thermal insulating coating such as a plastic mDusse, and / or acoustic absorbent such as glass wool, while a thickness of insulating material is fixed on the underside on the crosspieces of the psreauxmihles.