EP0017630B1 - Shuttering system for casting concrete walls or partitions, and process for realizing this system - Google Patents

Shuttering system for casting concrete walls or partitions, and process for realizing this system Download PDF

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Publication number
EP0017630B1
EP0017630B1 EP80830018A EP80830018A EP0017630B1 EP 0017630 B1 EP0017630 B1 EP 0017630B1 EP 80830018 A EP80830018 A EP 80830018A EP 80830018 A EP80830018 A EP 80830018A EP 0017630 B1 EP0017630 B1 EP 0017630B1
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EP
European Patent Office
Prior art keywords
members
panels
elongate members
elongate
fixing
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.)
Expired
Application number
EP80830018A
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German (de)
French (fr)
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EP0017630A1 (en
Inventor
Giuseppe Barale
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Individual
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Individual
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Priority to AT80830018T priority Critical patent/ATE5091T1/en
Publication of EP0017630A1 publication Critical patent/EP0017630A1/en
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Publication of EP0017630B1 publication Critical patent/EP0017630B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/12—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring of elements and beams which are mounted during erection of the shuttering to brace or couple the elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/02—Connecting or fastening means for non-metallic forming or stiffening elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/04—Connecting or fastening means for metallic forming or stiffening elements, e.g. for connecting metallic elements to non-metallic elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
    • E04G17/14—Bracing or strutting arrangements for formwalls; Devices for aligning forms

Definitions

  • the invention relates to a formwork system for pouring a concrete wall or partition and a method for assembling this system, in which two opposite planar walls which define a pouring cavity between them are formed by adjoining panels. fixed to horizontal beams by push-in fixing members, said beams being supported by vertical uprights provided with means which make it possible to adjust the balance and the spacing of the walls.
  • the uprights and the side members are metallic profiles.
  • the side members are fixed to the uprights by a system of clamping plates provided with bolts.
  • the bolt heads are retained in longitudinal T-shaped grooves in the side members.
  • the uprights have side wings which, thanks to the bolts, are clamped between the plates and the side members.
  • wooden slats which receive fixing nails for the panels.
  • US-A-4,033,544 lends itself to the assembly of large wall segments outside the construction site, for example in a workshop. Although the fixing system with clamping plates and bolts allows an adjustment of the reciprocal positions of the side members and the uprights this structure would however require, if it were to be assembled on site, a long and awkward work, given the large number of bolts installers should tighten.
  • FR-A-1 478 907 the above drawbacks are partially eliminated by using elongated metal panels arranged horizontally and which are applied one above the other against the uprights.
  • the panels are fixed to the uprights by means of a fairly complex hanging system which allows them to slide horizontally.
  • special and therefore expensive panels are used, which it is in every interest to reuse as much as possible.
  • FR-A-742 964 and FR-A-1 478 907 have in common the disadvantage of not allowing, on the one hand, the use of economical panels, such as the wooden planks commonly used in the construction industry. building industry, and on the other hand not to allow the use of panels intended to be left on the spot, after the setting of the concrete, to constitute a covering of the wall or the partition, such as a covering of thermal and / or sound insulation.
  • the object of the invention is to provide a system which allows on the one hand the use of economical panels, such as wooden planks, and on the other hand the use of panels intended to be left in place, and this by allowing at the same time the pouring of walls or partitions of any length.
  • the invention as characterized in claims 1 and 7, achieves this goal thanks to the fact that the side members allow the fastening side by side of very economical panels, such as wooden planks. This makes it possible to provide, at low cost, a large assortment of panels of different widths, thereby eliminating the difficulty of obtaining the desired lengths of wall or partition.
  • the beams allow the hydrostatic thrust of the fluid concrete to be properly transferred to the uprights.
  • the spacing of the latter can be chosen in an arbitrary manner, since this spacing does not depend on the width of the panels.
  • a pair of wooden planks 10 and 12 ( Figures 1, 2 and 7), parallel and spaced, are placed on a base or other preconstituted base surface. one of the other.
  • the two planks 10 and 12 are arranged at a predetermined distance from one another and with the plank 10 parallel and situated at a predetermined distance from the baseline LB from one face of the wall or partition to flow.
  • tripods 14 ( Figures 1 to 5).
  • Each tripod 14 is constituted by a frame of profiles which, seen from the side, has a configuration in a right triangle.
  • the substantially horizontal lower side of the triangle is defined by a pair of elements 16, the substantially vertical other side is defined by a pair of elements 18, and the oblique side is defined by a pair of elements 20 or struts.
  • the connection angle zones of the elements 16 and 18 are placed on the board 10.
  • Each of the elements 18 is provided with a lateral leg 22.
  • the two legs 22 also bear on the board 10 and serve to prevent the tripod 14 to tip aside.
  • connection angle zone of the elements 16 and 20 is provided with a foot 24 provided with an adjustment screw 26.
  • the screw 26 serves to adjust the plumb of the elements 18, for a purpose which will be better clarified by the after.
  • the tripods 14 are placed on the boards 10, 12 so that they are as much as possible aligned.
  • each of them is associated with an upright 28 ( Figures 1 to 5, 7, 9 and 10).
  • Each upright 28 comprises a U-shaped sheet metal element robust, indicated by 30. To the wings of this element is welded a lattice reinforcement structure 32.
  • the wings of the element 30 are welded lateral attachment members 34 which engage in corresponding attachment members 36 parallel elements 18 of the tripod 14.
  • the reciprocal attachment of the members 34 and 36 is carried out so as to maintain the upright 28 in an upright position in which the planar outer face 38 of the profiled element 30 is parallel to the elements 18.
  • the elements 18 also carry, near the hooking members 36 located uppermost, pivoting hooks 40 which are intended to engage the attachment members 34 to make the connection between the upright 28 and the tripod 14 more solid.
  • Each upright 28 has a length slightly greater than the height of the wall or of the partition to be produced (3.25 m for example).
  • transverse plumb of these uprights 28 is adjusted by means of the screws 26 associated with the feet 24.
  • transverse plumb is meant the plumb in a vertical plane normal to said baseline LB ( Figure 1).
  • each profiled element 30 that is to say in its wall which defines the flat face 38, a series of transverse slots arranged in pairs is provided.
  • the slots of each pair are indicated by 42a and 42b.
  • the pitch of the slots 42a, on the one hand, and the pitch of the slots 42b, on the other hand, are constant.
  • the spacing between the slots 42a, 42b of each pair has a predetermined value, which will be specified later.
  • the slots 42a, 42b constitute for mation to attachment to these formations 88 1 it possible to combine, according to the provision deemed more suitable, the latching tabs 44, visible in Figures 2, 4, 7 and 10 in the installed position and which is shown with more details in Figure 6.
  • the lugs 44 are made of sheet metal folded so that they have a housing 46 substantially U-shaped, having in cross section a square shape allowing to receive a profile of corresponding section .
  • the housing 46 is defined, among other things, by a pair of sheet metal cheeks 48 and 50. The free end of the cheek 50 is bent square towards the outside to form a flat tongue 52 which is pierced with a hole 54.
  • a hooking lug 44 is carried out by inserting the tongue 52 into the selected slot 42a or 42b, so that the cheek 50 is applied against the flat face 38 and the hole 54 is on the side of the inner face of the core of the profiled element 30.
  • the hole 54 in this position, receives a retaining pin 56.
  • the lugs 44 in the installed condition are clearly visible in FIGS. 7 and 10. Under these conditions the housings 46 are open upwards.
  • tabs 44 along the uprights 28 at suitable arbitrary intervals, from 30 cm to 80 cm for example, as is shown, among others in FIG. 7.
  • beams 58 are visible in the housings 46 thereof, visible in FIGS. 1, 2, 4, 10 and 11.
  • Each spar 58 comprises a C 60 iron with flat outer faces which are parallel to each other.
  • the cavity of the iron 60 is filled with a square slat made of wood or similar soft material.
  • the slat 62 is retained in the iron 60 by means of nails or screws such as 64.
  • the slat 62 has an accessible face, indicated by 66, which corresponds to the open face of the iron 60 and which is at the same level as the edges of the wings of the latter.
  • the cross section of the side members 58 is preferably square with flat faces, as shown, and the spacing of the cheeks 48, 50 of the legs 44 corresponds to the length of the section side of the side members 58.
  • the two cheeks 48, 50 have on the other hand, a height greater than the length of said side, in order to be able to receive in each housing 46 at least two beams 58 superimposed.
  • the longitudinal members 58 have a suitable length, from 2 to 4 m for example, so that they can extend at least between two adjacent uprights 28 and arranged at a reasonable distance from one another.
  • the adjacent uprights 28 are connected in this way at least two by two, and this at intervals in the direction of the height of the uprights.
  • one Beul peliey uh upright 199 adjacent ulterior by inserting into the housing 46 of a lug 44, already occupied by a spar 58, one end of another spar 58 superimposed, as shown in Figure 4.
  • the latter spar 58 may be superimposed, in the same lug 44, on another spar 58 connecting to an upright 28 still successive of the series. According to an alternative, this other end may be applied to the bottom of the housing 46 with a tab 44.
  • a tab 44 in which there are two superimposed longitudinal members 58 will be fixed in the lower slot 42a of a pair of slots an upright 28, while at its other end of the upper side member 58 will be supported by the bottom of the housing 46 with a tab 44 fixed in an upper slot 42b of a pair of slots located at the same level of the pair of 28 adjacent post slots.
  • the arrangement of the side members 58 for connecting together the different uprights 28 of the series can be chosen in the manner deemed most suitable.
  • the first result is that of perfecting the alignment of the uprights 28, and this thanks to the rather precise embedding of the longitudinal members 58 in the housings 46.
  • this alignment has been achieved we can later adjust the transverse plumb by means of the screws 26, if that should prove necessary.
  • planar faces 67 of the side members 58 opposite to those facing the faces 38 of the uprights in turn define a vertical plane.
  • the horizontal beams 58 thanks to the way they are received in the housings 46 of the legs 44, can slide in their longitudinal direction.
  • the longitudinal members 58 therefore do not have an imposed position with respect to the uprights 28. This makes it possible on the one hand to choose the distance between the consecutive uprights 28 at discretion and on the other hand not to cause the longitudinal members 58 to exceed the position in which a wall or a partition must terminate, for example to connect to a wall or partition arranged at 90 ° or to continuously execute a wall or partition provided at 90 °.
  • a first wall P (FIGS. 1, 7 and 10) is then formed for delimiting the concrete pouring cavity.
  • consecutive panels 68 are pressed against the flat faces 67 of the side members 58.
  • the panels 68 are arranged vertically, while their horizontal width could be chosen at discretion.
  • Each flange 70 is constituted by a cut and folded sheet metal element.
  • This element comprises a wing 72 capable of being applied to the accessible upper face 66 of the slat 62.
  • the wing 72 is pierced with a hole 74 (or several holes) for the passage of a nail 76 or the like. , capable of being driven into wood or other soft material of the batten 62.
  • the wing 72 is connected, by means of a triangular gusset 75 folded at right angles, to a veil 77 arranged in a plane perpendicular to that of the wing 72.
  • the veil 77 ends, at its end opposite to the gusset 74, by a pair of flanges 78a, 78b folded at right angles to the veil 77 and on both sides of the latter.
  • a flange 70 is placed on each side member 58, as shown in FIG. 4, so that the flange 78a encloses the panel 68 between said flange 78a and the face 67, and that the web 77 is pressed against the edge of the panel 68. Under these conditions the nail 76 is driven into the batten 62. The panel 68 is pressed against the faces 67 by inserting it between them and the rim 78b of the flange 70. In this way the veil 77 extends in the vertical light existing between the two edges of the adjoining and adjoining panels 68.
  • the assembly of the first wall P of the formwork is completed when the adjoining panels 68 have been fixed over the entire length of the wall or of the partition to be poured.
  • the choice of an economical material, such as wood, for the panels 68 makes it possible to have a whole assortment of these panels of different widths, to allow the realization of a wall formed of panels 68 having exactly the same length as the wall or partition to sink.
  • Subsequent disassembly of the wall formed of panels 68, after setting of the concrete, can be carried out in a simple manner by removing the nails 76, after which the panels 68 and the flanges 70 can be recovered.
  • a second wall of panels 68 opposite to that described above, must be produced. This second wall is indicated by P 2 in FIGS. 1, 7 and 10.
  • the second wall P 2 can be built directly at a distance from the first P corresponding to the thickness of a wall to be obtained insofar as this distance is such that it allows a person to pass between the two walls P 1 , P 2 for example if it is a question of pouring a concrete wall without reinforcing bars.
  • the reinforcing bars (not shown) are put in place and the panels 68 of the first wall P l are fixed in the desired positions. possible frames (not shown) delimiting the openings of doors, windows and other cavities, for the passage of pipes for example.
  • the first wall P 1 has been formed, place on the ground, in transverse alignment with its uprights 28, respective transverse elements or lower cross members 82 (FIG. 1, 2, 4, 5, 7, 9 and 10 ).
  • Each crosspiece 82 is constituted by a metal element profiled in an inverted U, the core of which is pierced with a series of holes 84 spaced apart by a pitch d 1 (FIG. 5). At its other end, the core of the element 82 is pierced with a pair of holes 86 spaced a distance d 2 less than d 1 .
  • the lower parts of the uprights 28 and 80 have openings 88 for the passage of a crosspiece 82 which is fixed inside these openings to the profiled elements 30 of the uprights 28 and 80.
  • an upper transverse L-shaped iron 90 and a lower transverse U-shaped iron 92 provide said fixing.
  • the cross member 82 having passed through the openings 88 of the two uprights 28 and 80, the uprights 28 and 80 are fixed to the cross member 82 using fastening members 94, one of which is visible in FIG. 9.
  • Each of these members 94 comprises a pin 96, preferably frustoconical, which can be engaged selectively in the holes 84 or in the holes 86 and the end of which can be housed in the hollow of the U-shaped section 92.
  • the pin 96 is provided with a head 98 in coated L, a branch 100 of which is capable of being hooked to the iron 90, the whole as shown in FIGS. 7 and 10.
  • the pitch d, of the holes 84 can be 5 cm, while the spacing d 2 of the two holes 86 can be 2.5 cm. This makes it possible to obtain wall or partition thicknesses staggered from 2.5 to 2.5 cm.
  • the uprights 80 are fixed, in the upright position, at the cross members 82, using the fixing members 94 and at a suitable distance from the first wall P l , as shown in FIG. 10. Then the second wall P 2 is constructed in the manner described above.
  • the structure of the second wall P 2 If the structure of the second wall P 2 is very heavy, the corresponding ends of the crosspieces 82 are coupled to a carriage 102 (FIG. 10) fitted with a running roller 104 and which comprises a slide 106 capable of being moved vertically at by means of a screw 108 and nut device.
  • the slide 106 has a double fork 110 in which the end of the crosspiece 82 can be engaged.
  • the displacement of the second wall is then done with the uprights 80 raised from the ground, by bearings of the carriages 102 on their rollers 104.
  • the cross members 82 are introduced into the openings 88 of the uprights 28 (if they had not already been introduced before), and are then locked using the fasteners 94, so that, at its base, the inner face of the second wall P 2 is at a distance from the opposite inner face of the first wall P, equal to the wall thickness or the partition to obtain.
  • a sleeve 112 (FIGS. 2, 7 and 10) is slid around each crosspiece 82 (made of rigid material, such as sheet metal or plastic, for example). With the sleeve 112, a pair of flanged end sleeves 114 is also slid around the crosspiece 82. The flanges of the sockets 114 are intended to seal against the internal faces of the two walls of the casting cavity and the sleeve 112, interposed between the flanges of the sockets 114, is intended to isolate the crosspiece 82 with respect to the concrete.
  • the sleeves 112 will remain embedded in the hardened concrete and the sleepers 82 and the sockets 114 can be removed.
  • each upright 28 and 80 has, at its top, a pair of pins 116, preferably frustoconical ( Figures 1, 2, 4 and 7).
  • the vertices of the pairs of uprights 28 and 30 are connected, as shown in FIGS. 1, 2 and 7, by means of pairs of transverse elements or upper crosspieces 118.
  • the crosspieces 118 are identical to the lower crosspieces 82 and have holes 122 similar to holes 84 and 86 of the lower crosspieces.
  • the pins 116 are capable of being selectively engaged in the holes 122 so as to also obtain, at the top of the two walls P 1 and P 2, a spacing of their internal faces equal to the thickness of the wall or of the partition to be obtained.
  • Figure 10 is shown a variant of the arrangement of the beams and the fixing of the panels to these beams.
  • the lugs 44 are also the lugs 44, but the side members, referenced 57a, are embedded in these lugs 44 with their face of soft material, referenced 66a, facing the panels referenced 68a.
  • This variant lends itself to the fixing of panels 68a of soft material, such as wood, capable of receiving nails 76a driven from the face of the panels 68a facing the casting cavity.
  • the panels 68a can be the usual wooden planks as mentioned above, but the variant of FIG. 10 lends itself in particular to the application of panels 68a intended to form an integral part of the wall or the partition, such as for example panels in thermal and sound insulation material.
  • a formwork system as shown lends itself to the casting, at a single stroke, of several perimeter walls and interior partitions of a floor of a building, according to an arrangement which can be deduced immediately from FIG. 1.
  • each stop element 124 comprises a section of C section 126 intended to embrace the spar 58 and which has holes 128 for fixing it by means nails to the batten 62 in soft material.
  • the element 124 comprises a pair of shoulder fins 130 reinforced by gussets 132 and intended to be applied against the longitudinal members 58, at their intersections, to oppose the thrust of the concrete fluid without that for this purpose the presence of amounts, such as 28 or 80, at the location of the edge is necessary.
  • connection elements or side members are used, such as that shown in FIG. 13, the structure of which is similar to that of the side members 58.
  • An element as shown in FIG. 13 comprises two sections of C-shaped sections 60a, 60b, welded together at a right angle and in each of which is inserted and fixed by means of nails a strip 62a and 62b of wood or a similar soft material.
  • the accessible faces of soft material are those facing upwards, to allow use with the flanges 70.
  • the accessible faces would then be those facing the panels 68a.

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

Abstract

A shuttering system and a method for its assembly, employing metal uprights which are arranged to face each other in pairs and have fixing means spaced along the uprights on their sides facing the casting cavity. Stringers are inserted in removable hooked coupling elements attached to the fixing means, and panels are attached to the stringers to form two opposing shuttering surfaces. The panels are fixed to the stringers by nails or the like which are driven into parts of the stringers made from a soft material such as wood.

Description

L'invention concerne un système de coffrage pour la coulée d'un mur ou cloison en béton et un procédé pour l'assemblage de ce système, dans lesquels deux parois planes opposées qui définissent entre elles une cavité de coulée sont constituées par des panneaux jointifs fixés sur des longerons horizontaux par des organes de fixation à enfoncement, lesdits longerons étant supportés par des montants verticaux pourvus de moyens qui permettent de régler l'aplomb et l'écartement des parois.The invention relates to a formwork system for pouring a concrete wall or partition and a method for assembling this system, in which two opposite planar walls which define a pouring cavity between them are formed by adjoining panels. fixed to horizontal beams by push-in fixing members, said beams being supported by vertical uprights provided with means which make it possible to adjust the balance and the spacing of the walls.

D'après le US-A-4 033 544, on connaît déjà des systèmes correspondant au préambule de la revendication 1 et qui permettent de réaliser un procédé d'assemblage correspondant au préambule de la revendication 7. Selon ce document les montants et les longerons sont des profils métalliques. Les longerons sont fixés aux montants par un système de plaques de serrage munies de boulons. Les têtes des boulons sont retenues dans des rainures longitudinales en T des longerons. Les montants présentent des ailes latérales qui, grâce aux boulons, sont serrées entre les plaques et les longerons. Dans ceux-ci sont incorporées des lattes de bois qui reçoivent des clous de fixation des panneaux.According to US-A-4,033,544, systems are already known which correspond to the preamble of claim 1 and which make it possible to carry out an assembly process corresponding to the preamble of claim 7. According to this document the uprights and the side members are metallic profiles. The side members are fixed to the uprights by a system of clamping plates provided with bolts. The bolt heads are retained in longitudinal T-shaped grooves in the side members. The uprights have side wings which, thanks to the bolts, are clamped between the plates and the side members. In these are incorporated wooden slats which receive fixing nails for the panels.

La structure du US-A-4 033 544 se prête à l'assemblage de grands segments de paroi hors du chantier, par exemple dans un atelier. Bien que le système de fixation par plaques de serrage et boulons permette un ajustement des positions réciproques des longerons et des montants cette structure demanderait toutefois, si on devait l'assembler sur chantier, un travail long et malaisé, étant donné le grand nombre de boulons que les installateurs devraient serrer.The structure of US-A-4,033,544 lends itself to the assembly of large wall segments outside the construction site, for example in a workshop. Although the fixing system with clamping plates and bolts allows an adjustment of the reciprocal positions of the side members and the uprights this structure would however require, if it were to be assembled on site, a long and awkward work, given the large number of bolts installers should tighten.

Il est aussi connu selon le FR-A-742 964 d'utiliser, pour constituer les parois de la cavité de coulée, des panneaux qui sont fixés directement aux faces intérieures des montants. Ces panneaux, qui peuvent être en bois, ont une longueur variable et sont divisés en deux ou plusieurs parties jointives. Ces parties sont reliées par des joints verticaux, tels que par exemple des charnières ou des emboîtements. Cette division des panneaux vise à permettre leur transport sous un faible encombrement. Il est toutefois évident que des joints verticaux, tels que des charnières ou des emboîtements, d'une part rendent ces panneaux coûteux, d'où la nécessité de les réutiliser autant que possible, et d'autre part constituent autant de points faibles, c'est-à-dire des endroits où les panneaux sont susceptibles de céder sous la poussée latérale hydrostatique du béton fluide, à moins qu'on n'adopte des des joints très robustes et donc coûteux. La présence de ces points faibles n'a pas beaucoup d'importance dans le cas de panneaux de hauteur limitée. Ces panneaux ne permettent toutefois que de couler un mur ou cloison par reprises successives de cette hauteur limitée.It is also known according to FR-A-742 964 to use, to constitute the walls of the casting cavity, panels which are fixed directly to the internal faces of the uprights. These panels, which can be made of wood, have a variable length and are divided into two or more contiguous parts. These parts are connected by vertical joints, such as for example hinges or sockets. This division of the panels aims to allow their transport in a small footprint. It is however obvious that vertical joints, such as hinges or sockets, on the one hand make these panels expensive, hence the need to reuse them as much as possible, and on the other hand constitute as many weak points, c that is to say places where the panels are liable to give way under the hydrostatic lateral thrust of the fluid concrete, unless very robust and therefore costly joints are adopted. The presence of these weak points does not matter much in the case of panels of limited height. However, these panels only allow a wall or partition to be poured over successively from this limited height.

Selon le FR-A-1 478 907 les inconvénients ci-dessus sont éliminés en partie en utilisant des panneaux métalliques allongés disposés horizontalement et qui sont appliqués les uns au-dessus des autres contre les montants. Les panneaux sont assujettis aux montants au moyen d'un système d'accrochage assez complexe qui leur permet de coulisser horizontalement. Dans ce cas également on utilise des panneaux spéciaux et donc coûteux, que l'on a tout intérêt à réutiliser autant que possible.According to FR-A-1 478 907 the above drawbacks are partially eliminated by using elongated metal panels arranged horizontally and which are applied one above the other against the uprights. The panels are fixed to the uprights by means of a fairly complex hanging system which allows them to slide horizontally. In this case too, special and therefore expensive panels are used, which it is in every interest to reuse as much as possible.

Cette solution présente encore un autre inconvénient: les longueurs des murs que l'on peut obtenir sont dictées par les longueurs des panneaux disponibles. Or, étant donné qu'il s'agit de panneux spéciaux, il ne serait pas économique de prévoir toute une gamme de panneaux d'un grand nombre de longueurs différentes.This solution has yet another drawback: the lengths of the walls that can be obtained are dictated by the lengths of the panels available. However, since these are special panels, it would not be economical to provide a whole range of panels of a large number of different lengths.

Les systèmes des FR-A-742 964 et FR-A-1 478 907 ont en commun l'inconvénient de ne pas permettre, d'une part, l'utilisation de panneaux économiques, tels que les planches de bois utilisées couramment dans l'industrie du bâtiment, et d'autre part de ne pas permettre l'utilisation de panneux destinés à être laissés sur place, après la prise du béton, pour constituer un revêtement du mur ou de la cloison, tel qu'un revêtement d'isolation thermique et/ou phonique.The systems of FR-A-742 964 and FR-A-1 478 907 have in common the disadvantage of not allowing, on the one hand, the use of economical panels, such as the wooden planks commonly used in the construction industry. building industry, and on the other hand not to allow the use of panels intended to be left on the spot, after the setting of the concrete, to constitute a covering of the wall or the partition, such as a covering of thermal and / or sound insulation.

Le but de l'invention est celui de réaliser un système qui permette d'une part l'utilisation de panneaux économiques, tels que des planches de bois, et d'autre part l'utilisation de panneaux destinés à être laissés sur place, et ceci en permettant en même temps la coulée de murs ou de cloisons de n'importe quelle longueur.The object of the invention is to provide a system which allows on the one hand the use of economical panels, such as wooden planks, and on the other hand the use of panels intended to be left in place, and this by allowing at the same time the pouring of walls or partitions of any length.

L'invention, telle qu'elle est caractérisée dans les revendications 1 et 7, permet d'atteindre ce but grâce au fait que les longerons permettent la fixation côte à côte de panneaux très économiques, tels que des planches de bois. Ceci permet de prévoir, à peu de frais, un grand assortiment de panneaux de largeurs différentes, en éliminant de ce fait la difficulté d'obtention des longueurs de mur ou de cloison voulues.The invention, as characterized in claims 1 and 7, achieves this goal thanks to the fact that the side members allow the fastening side by side of very economical panels, such as wooden planks. This makes it possible to provide, at low cost, a large assortment of panels of different widths, thereby eliminating the difficulty of obtaining the desired lengths of wall or partition.

Les longerons, dont le nombre et la distribution peuvent être choisis de la manière qui convient le plus, permettent de transférer convenablement la poussée hydrostatique du béton fluide aux montants. En plus, l'espacement de ces derniers peut être choisi d'un façon arbitraire, étant donné que cet espacement ne dépend pas de la largeur des panneaux.The beams, the number and distribution of which can be chosen in the most suitable manner, allow the hydrostatic thrust of the fluid concrete to be properly transferred to the uprights. In addition, the spacing of the latter can be chosen in an arbitrary manner, since this spacing does not depend on the width of the panels.

L'invention sera exposé dans ce qui suit avec plus de détails en faisant référence aux dessins qui représentent une forme de réalisation préférée et quelques variantes.The invention will be set out in the following in more detail with reference to the drawings which represent a preferred embodiment and some variants.

Sur les dessins:

  • la figure 1 est une vue en perspective d'un système de coffrage appliqué à la réalisation d'un ensemble de murs ou de cloisons;
  • la figure 2 est une vue en perspective éclatée, à plus grande échelle, d'une partie du système de la figure 1;
  • la figure 3 est une vue en perspective d'une partie inférieure d'un montant du système et d'un trépied de soutien de ce montant;
  • la figure 4 est une vue en perspective qui représente avec plus de détails la façon dont on réalise la liaison entre les montants et les panneaux du système;
  • la figure 5 est une vue de dessus cfun montant, de son trépied de soutien et d'une traverse inférieure associée au montant;
  • la figure 6 est une vue en perspective d'une patte d'accrochage utilisée pour assujettir à un montant un longeron dy système;
  • la figure 7 est une coupe transversale exécutée, à plus grande échelle, dans le plan indiqué par la ligne VII-VII de la figure 1;
  • la figure 8 est une vue en perspective d'une bride pour la fixation de panneaux consécutifs à un longeron;
  • la figure 9 est une vue en perspective de la partie inférieure d'un montant et de la partie d'extrémité correspondante d'une traverse inférieure;
  • la figure 10 est une coupe transversale, semblable à la figure 7, d'une partie inférieure du système, dans laquelle est représentée une variante de la disposition des longerons, et dans laquelle est représenté en outre un chariot susceptible d'être engagé avec une traverse inférieure pour obtenir la translation d'une paroi de pannaux vers l'autre;
  • la figure 11 est une vue en perspective à plus grande échelle d'une zone d'angle telle que celle entourée du cercle XI de la figure 1;
  • la figure 12 est une vue en perspective à plus grande échelle d'un élément de butée utilisé dans une liaison d'angle comme celle de la figure 11, et
  • la figure 13 est une vue en perspective d'un longeron en équerre utilisable dans une zone d'angle.
In the drawings:
  • Figure 1 is a perspective view of a formwork system applied to the production of a set of walls or partitions;
  • Figure 2 is an exploded perspective view, on a larger scale, of part of the system of Figure 1;
  • FIG. 3 is a perspective view of a lower part of an upright of the system and of a tripod for supporting this upright;
  • Figure 4 is a perspective view which shows in more detail how the connection is made between the uprights and the panels of the system;
  • Figure 5 is a top view of an upright, its support tripod and a lower cross member associated with the upright;
  • Figure 6 is a perspective view of a fastening lug used to secure an upright a system member;
  • Figure 7 is a cross section taken, on a larger scale, in the plane indicated by line VII-VII of Figure 1;
  • Figure 8 is a perspective view of a flange for fixing consecutive panels to a beam;
  • FIG. 9 is a perspective view of the lower part of an upright and of the corresponding end part of a lower cross member;
  • Figure 10 is a cross section, similar to Figure 7, of a lower part of the system, in which is shown a variant of the arrangement of the side members, and in which is further shown a carriage capable of being engaged with a lower cross member to obtain the translation of one wall of panels towards the other;
  • Figure 11 is a perspective view on a larger scale of a corner area such as that surrounded by the circle XI of Figure 1;
  • FIG. 12 is a perspective view on a larger scale of a stop element used in a corner connection like that of FIG. 11, and
  • Figure 13 is a perspective view of a square beam usable in a corner area.

Les différentes parties du système de coffrage représenté ainsi qui leurs détails sont décrits ci-dessous, en faisant référence aux dessins; au cours de l'exposé le procédé d'assemblage de ce système est aussi décrit.The different parts of the formwork system shown as well, their details are described below, with reference to the drawings; during the presentation the method of assembling this system is also described.

Préalablement à la coulée d'un mur ou d'une cloison en béton, on pose sur une semelle ou autre surface de base préconstituée, une paire de planches de bois 10 et 12 (figures 1, 2 et 7), parallèles et espacées l'une de l'autre. Les deux planches 10 et 12 sont disposées à une distance prédéterminée l'une de l'autre et avec la planche 10 parallèle et située à une distance prédéterminée par rapport à la ligne de base LB d'une face du mur ou de la cloison à couler.Before pouring a concrete wall or partition, a pair of wooden planks 10 and 12 (Figures 1, 2 and 7), parallel and spaced, are placed on a base or other preconstituted base surface. one of the other. The two planks 10 and 12 are arranged at a predetermined distance from one another and with the plank 10 parallel and situated at a predetermined distance from the baseline LB from one face of the wall or partition to flow.

Sur les planches 10 et 12 on place, à des intervalles prédéterminés ou voulus, des trépieds 14 (figures 1 à 5).On the boards 10 and 12 are placed, at predetermined or desired intervals, tripods 14 (Figures 1 to 5).

Chaque trépied 14 est constitué par un châssis de profilés qui, vu de côté, présente une conformation en triangle rectangle. Le côté inférieur, sensiblement horizontal, du triangle est défini par une paire d'éléments 16, l'autre côté, sensiblement vertical, est défini par une paire d'éléments 18, et le côté oblique est défini par une paire d'éléments 20 ou contrefiches. Les zones d'angle de liaison des éléments 16 et 18 sont posées sur la planche 10. Chacun des éléments 18 est muni d'une jambe latérale 22. Les deux jambes 22 prennent également appui sur la planche 10 et servent à empêcher le trépied 14 de basculer de côté.Each tripod 14 is constituted by a frame of profiles which, seen from the side, has a configuration in a right triangle. The substantially horizontal lower side of the triangle is defined by a pair of elements 16, the substantially vertical other side is defined by a pair of elements 18, and the oblique side is defined by a pair of elements 20 or struts. The connection angle zones of the elements 16 and 18 are placed on the board 10. Each of the elements 18 is provided with a lateral leg 22. The two legs 22 also bear on the board 10 and serve to prevent the tripod 14 to tip aside.

La zone d'angle de liaison des éléments 16 et 20 est munie d'un pied 24 pourvu d'une vis de réglage 26. La vis 26 sert à régler l'aplomb des éléments 18, dans un but qui sera mieux éclairci par la suite.The connection angle zone of the elements 16 and 20 is provided with a foot 24 provided with an adjustment screw 26. The screw 26 serves to adjust the plumb of the elements 18, for a purpose which will be better clarified by the after.

Les trépieds 14 sont placés sur les planches 10, 12 de façon qu'ils se trouvent autant que possible alignés.The tripods 14 are placed on the boards 10, 12 so that they are as much as possible aligned.

Après que la pose des trépieds 14 a été accomplie, à chacun d'eux on associe un montant 28 (figures 1 à 5, 7, 9 et 10).After the installation of the tripods 14 has been completed, each of them is associated with an upright 28 (Figures 1 to 5, 7, 9 and 10).

Chaque montant 28 comprend un élément profilé en U tôle robuste, indiqué par 30. Aux ailes de cet élément est soudée une structure de renfort en treillis 32.Each upright 28 comprises a U-shaped sheet metal element robust, indicated by 30. To the wings of this element is welded a lattice reinforcement structure 32.

Aux ailes de l'élément 30 sont soudés des organes d'accrochage latéraux 34 qui s'engagent dans des organes d'accrochage correspondants 36 des éléments parallèles 18 du trépied 14. L'accrochage réciproque des organes 34 et 36 est réalisé de façon à maintenir le montant 28 dans une position dressée dans laquelle la face extérieure plane 38 de l'élément profilé 30 est parallèle aux éléments 18. Les éléments 18 portent en outre, près des organes d'accrochage 36 situés le plus en haut, des crochets pivotants respectifs 40 qui sont destinés à s'engager sur les organes d'accrochage 34 pour rendre plus solide la liaison entre le montant 28 et sont trépied 14.The wings of the element 30 are welded lateral attachment members 34 which engage in corresponding attachment members 36 parallel elements 18 of the tripod 14. The reciprocal attachment of the members 34 and 36 is carried out so as to maintain the upright 28 in an upright position in which the planar outer face 38 of the profiled element 30 is parallel to the elements 18. The elements 18 also carry, near the hooking members 36 located uppermost, pivoting hooks 40 which are intended to engage the attachment members 34 to make the connection between the upright 28 and the tripod 14 more solid.

Chaque montant 28 a une longueur un peu plus grande que la hauteur de mur ou de la cloison à réaliser (3,25 m par exemple).Each upright 28 has a length slightly greater than the height of the wall or of the partition to be produced (3.25 m for example).

Lorsque les montants 28 ont été fixés aux trépieds 14 de la façon décrite ci-dessus, on règle l'aplomb transversal de ces montants 28 au moyen des vis 26 associées aux pieds 24. Par aplomb transversal on entend l'aplomb dans un plan vertical normal à ladite ligne de base LB (figure 1).When the uprights 28 have been fixed to the tripods 14 in the manner described above, the transverse plumb of these uprights 28 is adjusted by means of the screws 26 associated with the feet 24. By transverse plumb is meant the plumb in a vertical plane normal to said baseline LB (Figure 1).

Dans l'âme de chaque élément profilé 30, c'est-à-dire dans sa paroi qui définit la face plane 38, est ménagée une série de fentes transversales disposées par paires. Les fentes de chaque paire sont indiquées par 42a et 42b. Le pas des fentes 42a, d'une part, et le pas des fentes 42b, d'autre part, sont constants. L'écartement entre les fentes 42a, 42b de chaque paire a une valeur prédéterminée, qui sera spécifiée plus loin.In the core of each profiled element 30, that is to say in its wall which defines the flat face 38, a series of transverse slots arranged in pairs is provided. The slots of each pair are indicated by 42a and 42b. The pitch of the slots 42a, on the one hand, and the pitch of the slots 42b, on the other hand, are constant. The spacing between the slots 42a, 42b of each pair has a predetermined value, which will be specified later.

Les fentes 42a, 42b constituent des formations to fixation A ces formations il 881 possible d'associer, selon la disposition réputée la plus convenable, des pattes d'accrochage 44, visibles sur les figures 2, 4, 7 et 10 dans la position installée et dont une est représentée avec plus de détails à la figure 6. Les pattes d'accrochage 44 sont en tôle pliée de façon à ce qu'elles présentent un logement 46 sensiblement en forme de U, ayant en coupe transversale une forme équarrie permettant de recevoir un profil de section correspondante. Le logement 46 est défini, entre autres, par une paire de joues en tôle 48 et 50. L'extrémité libre de la joue 50 est pliée d'équerre vers l'extérieur pour former une languette plane 52 qui est percée d'un trou 54.The slots 42a, 42b constitute for mation to attachment to these formations 88 1 it possible to combine, according to the provision deemed more suitable, the latching tabs 44, visible in Figures 2, 4, 7 and 10 in the installed position and which is shown with more details in Figure 6. The lugs 44 are made of sheet metal folded so that they have a housing 46 substantially U-shaped, having in cross section a square shape allowing to receive a profile of corresponding section . The housing 46 is defined, among other things, by a pair of sheet metal cheeks 48 and 50. The free end of the cheek 50 is bent square towards the outside to form a flat tongue 52 which is pierced with a hole 54.

L'installation d'une patte d'accrochage 44 est effectuée en introduisant la languette 52 dans la fente 42a ou 42b sélectionnée, de façon à ce que la joue 50 soit appliquée contre la face plane 38 et que le trou 54 se trouve du côté de la face intérieure de l'âme de l'élément profilé 30. Le trou 54, dans cette position, reçoit une cheville de retenue 56. Les pattes 44 dans la condition installée sont clairement visibles sur les figures 7 et 10. Dans ces conditions les logements 46 sont ouverts vers le haut.The installation of a hooking lug 44 is carried out by inserting the tongue 52 into the selected slot 42a or 42b, so that the cheek 50 is applied against the flat face 38 and the hole 54 is on the side of the inner face of the core of the profiled element 30. The hole 54, in this position, receives a retaining pin 56. The lugs 44 in the installed condition are clearly visible in FIGS. 7 and 10. Under these conditions the housings 46 are open upwards.

On dispose des pattes 44 le long des montants 28 à des intervalles arbitraires convenables, de 30 cm à 80 cm par exemple, ainsi qu'il est représenté entre autres à la figure 7.There are tabs 44 along the uprights 28 at suitable arbitrary intervals, from 30 cm to 80 cm for example, as is shown, among others in FIG. 7.

Lorsque les pattes 44 ont été fixées, on introduit dans les logements 46 de celles-ci des longerons 58, visibles sur les figures 1, 2, 4, 10 et 11.When the lugs 44 have been fixed, beams 58 are visible in the housings 46 thereof, visible in FIGS. 1, 2, 4, 10 and 11.

Chaque longeron 58 comprend un fer en C 60 à faces extérieures planes et parallèles entre elles. La cavité du fer 60 est remplie par une latte équarrie en bois ou matière tendre analogue. La latte 62 est retenue dans le fer 60 au moyen de clous ou de vis tels que 64. La latte 62 présente une face accessible, indiquée par 66, qui correspond à la face ouverte du fer 60 et qui se trouve au même niveau que les bords des ailes de ce dernier.Each spar 58 comprises a C 60 iron with flat outer faces which are parallel to each other. The cavity of the iron 60 is filled with a square slat made of wood or similar soft material. The slat 62 is retained in the iron 60 by means of nails or screws such as 64. The slat 62 has an accessible face, indicated by 66, which corresponds to the open face of the iron 60 and which is at the same level as the edges of the wings of the latter.

La section transversale des longerons 58 est de préférence carrée à faces planes, ainsi que représenté, et l'écartement des joues 48, 50 des pattes 44 correspond à la longueur du côté de la section des longerons 58. Les deux joues 48, 50 ont par contre une hauteur plus grande que la longueur dudit côté, pour pouvoir recevoir dans chaque logement 46 au moins deux longerons 58 superposés.The cross section of the side members 58 is preferably square with flat faces, as shown, and the spacing of the cheeks 48, 50 of the legs 44 corresponds to the length of the section side of the side members 58. The two cheeks 48, 50 have on the other hand, a height greater than the length of said side, in order to be able to receive in each housing 46 at least two beams 58 superimposed.

Les longerons 58 ont une longueur convenable, de 2 à 4 m par exemple, de façon à ce qu'ils puissent s'étendre au moins entre deux montants 28 adjacents et disposés à une distance raisonnable l'un de l'autre.The longitudinal members 58 have a suitable length, from 2 to 4 m for example, so that they can extend at least between two adjacent uprights 28 and arranged at a reasonable distance from one another.

Au moyen des longerons 58 insérés dans les pattes 44, on relie de cette façon les montants 28 adjacents au moins deux par deux, et ceci par intervalles dans le sens de la hauteur des montants. Lorsque la liaison d'une paire de montants 28 a été réalisée de cette façon, on Beul peliey uh montant 199 adjacent ulténeur en insérant dans le logement 46 d'une patte 44, déjà occupé par un longeron 58, une extrémité d'un autre longeron 58 superposé, ainsi qu'il est représente en figure 4. Vers son autre extrémité, ce dernier longeron 58 pourra être superposé, dans une même patte 44, à un autre longeron 58 de liaison à un montant 28 encore successif de la série. Selon une alternative, cette autre extrémité pourra être appliquée sur le fond du logement 46 d'une patte 44. Dans cette alternative, une patte 44 dans laquelle se trouvent deux longerons 58 superposés sera fixée dans la fente inférieure 42a d'une paire de fentes d'un montant 28, tandis qu'à son autre extrémité de longeron 58 supérieur sera supporté par le fond du logement 46 d'une patte 44 fixée dans une fente supérieure 42b d'une paire de fentes situées au même niveau de la paire de fentes du montant 28 adjacent.By means of the side members 58 inserted in the lugs 44, the adjacent uprights 28 are connected in this way at least two by two, and this at intervals in the direction of the height of the uprights. When the connection of a pair of uprights 28 has been carried out in this way, one Beul peliey uh upright 199 adjacent ulterior by inserting into the housing 46 of a lug 44, already occupied by a spar 58, one end of another spar 58 superimposed, as shown in Figure 4. Towards its other end, the latter spar 58 may be superimposed, in the same lug 44, on another spar 58 connecting to an upright 28 still successive of the series. According to an alternative, this other end may be applied to the bottom of the housing 46 with a tab 44. In this alternative, a tab 44 in which there are two superimposed longitudinal members 58 will be fixed in the lower slot 42a of a pair of slots an upright 28, while at its other end of the upper side member 58 will be supported by the bottom of the housing 46 with a tab 44 fixed in an upper slot 42b of a pair of slots located at the same level of the pair of 28 adjacent post slots.

En tous cas, la disposition des longerons 58 pour relier entre eux les différents montants 28 de la série peut être choisie de la façon réputée la plus convenable.In any case, the arrangement of the side members 58 for connecting together the different uprights 28 of the series can be chosen in the manner deemed most suitable.

Grâce à la liaison des montants 28 au moyen des longerons 58 on obtient comme premier résultat celui de parfaire l'alignement des montants 28, et ceci grâce à l'encastrement plutôt précis des longerons 58 dans les logements 46. Lorsque cet alignement a été réalisé on pourra régler ultérieurement l'aplomb transversal au moyen des vis 26, si cela devait s'avérer nécessaire.Thanks to the connection of the uprights 28 by means of the longitudinal members 58, the first result is that of perfecting the alignment of the uprights 28, and this thanks to the rather precise embedding of the longitudinal members 58 in the housings 46. When this alignment has been achieved we can later adjust the transverse plumb by means of the screws 26, if that should prove necessary.

Lorsque l'alignement des montants 27 a été réalisé, les faces planes 67 des longerons 58 opposées à celles tournées vers les faces 38 des montants définissent à leur tour un plan vertical.When the alignment of the uprights 27 has been achieved, the planar faces 67 of the side members 58 opposite to those facing the faces 38 of the uprights in turn define a vertical plane.

Les longerons horizontaux 58, grâce à la façon dont ils sont reçus dans les logements 46 des pattes 44, peuvent coulisser suivant leur direction longitudinale. Les longerons 58 n'ont donc pas une position imposée par rapport aux montants 28. Ceci permet d'une part de choisir à discrétion la distance entre les montants 28 consécutifs et d'autre part de ne pas faire dépasser les longerons 58 par rapport à la position dans laquelle un mur ou une cloison doit se terminer, par exemple pour se raccorder à un mur ou cloison disposé à 90° ou pour exécuter sans discontinuité de coulée un mur ou une cloison diposé à 90°.The horizontal beams 58, thanks to the way they are received in the housings 46 of the legs 44, can slide in their longitudinal direction. The longitudinal members 58 therefore do not have an imposed position with respect to the uprights 28. This makes it possible on the one hand to choose the distance between the consecutive uprights 28 at discretion and on the other hand not to cause the longitudinal members 58 to exceed the position in which a wall or a partition must terminate, for example to connect to a wall or partition arranged at 90 ° or to continuously execute a wall or partition provided at 90 °.

Dans les figures 4 et 7 les longerons 58 sont installés avec leurs faces 66 en matière tendre (bois de la latte 62) tournées vers le haut.In Figures 4 and 7 the side members 58 are installed with their faces 66 of soft material (wood of the slat 62) facing upwards.

Lorsque la structure composée des montants 28 et des longerons 58 décrite ci-dessus a été formée, on forme ensuite une première paroi P (figures 1, 7 et 10) de délimitation de la cavité de coulée du béton. Pour constituer cette paroi P on plaque des panneaux consécutifs 68 contre les faces planes 67 des longerons 58. Les panneaux 68 sont disposés verticalement, tandis que leur largeur horizontale put être choisie à discrétion. On peut utiliser des panneaux 68 en n'importe quelle matière convenable et notamment des simples planches de bois du type usuel utilisé pour la réalisation des coffrages.When the structure composed of the uprights 28 and the longitudinal members 58 described above has been formed, a first wall P (FIGS. 1, 7 and 10) is then formed for delimiting the concrete pouring cavity. To form this wall P, consecutive panels 68 are pressed against the flat faces 67 of the side members 58. The panels 68 are arranged vertically, while their horizontal width could be chosen at discretion. We can use panels 68 in any suitable material and in particular simple wooden planks of the usual type used for the production of formwork.

Chaque fois qu'un panneau 68 a été plaqué contre les longerons 58, on le fixe à ces longerons au moyen de brides 70, visibles sur les figures 2 et 4 et dont une est représentée en détail à la figure 8.Each time a panel 68 has been pressed against the beams 58, it is fixed to these beams by means of flanges 70, visible in FIGS. 2 and 4 and one of which is shown in detail in FIG. 8.

Chaque bride 70 est constituée par un élément en tôle découpé et plié. Cet élément comprend un aile 72 susceptible d'être appliquée sur la face supérieure accessible 66 de la latte 62. L'aile 72 est percée d'un trou 74 (ou de plusieurs trous) pour le passage d'un clou 76 ou organe analogue, susceptible d'être enfoncé dans le bois ou autre matière tendre de la latte 62. L'aile 72 est reliée, au moyen d'un gousset triangulaire 75 plié d'équerre, à un voile 77 disposé dans un plan perpendiculaire à celui de l'aile 72. Le voile 77 se termine, à son extrémité opposée au gousset 74, par un couple de rebords 78a, 78b pliés à angle droit par rapport au voile 77 et des deux côtés de celui-ci.Each flange 70 is constituted by a cut and folded sheet metal element. This element comprises a wing 72 capable of being applied to the accessible upper face 66 of the slat 62. The wing 72 is pierced with a hole 74 (or several holes) for the passage of a nail 76 or the like. , capable of being driven into wood or other soft material of the batten 62. The wing 72 is connected, by means of a triangular gusset 75 folded at right angles, to a veil 77 arranged in a plane perpendicular to that of the wing 72. The veil 77 ends, at its end opposite to the gusset 74, by a pair of flanges 78a, 78b folded at right angles to the veil 77 and on both sides of the latter.

Pour retenir un panneau 68 plaqué contre les faces planes 67 des longerons 58, on place sur chaque longeron 58 une bride 70, ainsi que représenté en figure 4, de façon à ce que le rebord 78a enserre le panneau 68 entre ledit rebord 78a et la face 67, et que le voile 77 soit plaqué contre le chant du panneau 68. Dans ces conditions on enfonce le clou 76 dans la latte 62. On plaque le panneau 68 successif contre les faces 67 en l'insérant entre celles-ci et le rebord 78b de la bride 70. De cette façon le voile 77 s'étend dans le jour vertical existant entre les deux chants des panneaux 68 contigus et jointifs.To retain a panel 68 pressed against the flat faces 67 of the side members 58, a flange 70 is placed on each side member 58, as shown in FIG. 4, so that the flange 78a encloses the panel 68 between said flange 78a and the face 67, and that the web 77 is pressed against the edge of the panel 68. Under these conditions the nail 76 is driven into the batten 62. The panel 68 is pressed against the faces 67 by inserting it between them and the rim 78b of the flange 70. In this way the veil 77 extends in the vertical light existing between the two edges of the adjoining and adjoining panels 68.

L'assemblage de la première paroi P du coffrage est terminé lorsque les panneaux jointifs 68 ont été fixés sur toute la longueur de mur ou de la cloison à couler.The assembly of the first wall P of the formwork is completed when the adjoining panels 68 have been fixed over the entire length of the wall or of the partition to be poured.

Le choix d'un matériau économique, tel que le bois, pour les panneaux 68 permet de disposer de tout un assortiment de ces panneaux de largeurs différentes, pour permettre la réalisation d'une paroi formée de panneaux 68 ayant exactement la même longueur que le mur ou la cloison à couler.The choice of an economical material, such as wood, for the panels 68 makes it possible to have a whole assortment of these panels of different widths, to allow the realization of a wall formed of panels 68 having exactly the same length as the wall or partition to sink.

Le démontage ultérieur de la paroi formée de panneaux 68, après la prise du béton, peut être effectué d'une façon simple en enlevant les clous 76, après quoi les panneaux 68 et les brides 70 peuvent être récupérés.Subsequent disassembly of the wall formed of panels 68, after setting of the concrete, can be carried out in a simple manner by removing the nails 76, after which the panels 68 and the flanges 70 can be recovered.

Pour compléter le coffrage de coulée d'un mur ou d'une cloison il faut réaliser une deuxième paroi de panneaux 68, opposée à celle décrite ci-dessus. Cette deuxième paroi est indiquée par P2 sur les figures 1, 7 et 10.To complete the casting formwork for a wall or a partition, a second wall of panels 68, opposite to that described above, must be produced. This second wall is indicated by P 2 in FIGS. 1, 7 and 10.

Dans ce but on utilise une deuxième série de montants 80 semblables aux montants 28, mais auxquels on n'associe pas de trépieds de soutien tels que 14. On relie les montants 80 entre eux au moyen de longerons, toujours référencés 58, qui sont accrochés dans des pattes d'accrochage, toujours référencées 44. Pour les mêmes motifs exposés ci-dessus, l'encastrement des longerons 58 dans les pattes 44 assure l'alignement des montants 80, en réalisant un châssis assez rigide et plan, même si les montants 80 sont dépourvus de trépieds de soutien. A ce châssis on fixe des panneaux 69, analogues aux précédents, au moyen de brides telles que 70, en constituant de cette façon la deuxième paroi P2 du coffrage.For this purpose we use a second series of uprights 80 similar to the uprights 28, but to which we do not associate support tripods such as 14. We connect the uprights 80 to each other by means of side members, still referenced 58, which are hooked in lugs, always referenced 44. For the same reasons explained above, the embedding of the side members 58 in the lugs 44 ensures the alignment of the uprights 80, making a fairly rigid and flat chassis, even if the 80 uprights do not have support tripods. Panels 69, similar to the previous ones, are fixed to this frame by means of flanges such as 70, thereby constituting the second wall P 2 of the formwork.

La deuxième paroi P2 peut être construite directement à une distance de la première P correspondant à l'épaisseur d'un mur à obtenir dans la mesure où cette distance est telle qu'elle permet de passage d'une personne entre les deux parois P1, P2 par exemple s'il s'agit de couler un mur en béton sans fers d'armature.The second wall P 2 can be built directly at a distance from the first P corresponding to the thickness of a wall to be obtained insofar as this distance is such that it allows a person to pass between the two walls P 1 , P 2 for example if it is a question of pouring a concrete wall without reinforcing bars.

Dans le cas le plus fréquent, toutefois, après la réalisation de la première paroi P1 on met en place les fers d'armature (non représentés) et on fixe aux panneaux 68 de la première paroi Pl, dans les positions voulues, des cadres éventuels (non représentés) de délimitation des ouvertures des portes, des fenêtres et d'autres cavités, pour le passage de canalisations par exemple. Dans ce cas il convient mieux de réaliser la deuxième paroi P2 dans une position éloignée de la première Pl. Dans ce but, après que la première paroi P1 a été formée on place au sol, en alignement transversal avec ses montants 28, des éléments transversaux respectifs ou traverses inférieures 82 (figure 1, 2, 4, 5, 7, 9 et 10).In the most frequent case, however, after the first wall P 1 has been produced, the reinforcing bars (not shown) are put in place and the panels 68 of the first wall P l are fixed in the desired positions. possible frames (not shown) delimiting the openings of doors, windows and other cavities, for the passage of pipes for example. In this case, it is better to produce the second wall P 2 in a position remote from the first P l . For this purpose, after the first wall P 1 has been formed, place on the ground, in transverse alignment with its uprights 28, respective transverse elements or lower cross members 82 (FIG. 1, 2, 4, 5, 7, 9 and 10 ).

Chaque traverse 82 est constituée par un élément métallique profilé en U renversé dont l'âme est percée d'une série de trous 84 espacés d'un pas d1 (figure 5). A son autre extrémité l'âme de l'élément 82 est percée d'une paire de trous 86 espacés d'une distance d2 inférieure à d1.Each crosspiece 82 is constituted by a metal element profiled in an inverted U, the core of which is pierced with a series of holes 84 spaced apart by a pitch d 1 (FIG. 5). At its other end, the core of the element 82 is pierced with a pair of holes 86 spaced a distance d 2 less than d 1 .

Les parties inférieures des montants 28 et 80 présentent des ouvertures 88 pour le passage d'une traverse 82 qui est fixée à l'intérieur de ces ouvertures aux éléments profilés 30 des montants 28 et 80. Ainsi qu'il est mieux visible sur la figure 9, un fer en L transversal supérieur 90 et un fer en U transversal inférieur 92 assurent ladite fixation. La traverse 82 étant passée au travers des ouvertures 88 des deux montants 28 et 80, on fixe les montants 28 et 80 à la traverse 82 en utilisant des organes de fixation 94, dont l'une est visible à la figure 9. Chacun de ces organes 94 comprend une broche 96, de préférence tronconique, qui peut être engagée sélectivement dans les trous 84 ou dans les trous 86 et dont l'extrémité peut être logée dans le creux du profilé en U 92. La broche 96 est pourvue d'une tête 98 en L couché, dont une branche 100 est susceptible d'être accrochée au fer 90, le tout comme représenté sur les figures 7 et 10.The lower parts of the uprights 28 and 80 have openings 88 for the passage of a crosspiece 82 which is fixed inside these openings to the profiled elements 30 of the uprights 28 and 80. As is better visible in the figure 9, an upper transverse L-shaped iron 90 and a lower transverse U-shaped iron 92 provide said fixing. The cross member 82 having passed through the openings 88 of the two uprights 28 and 80, the uprights 28 and 80 are fixed to the cross member 82 using fastening members 94, one of which is visible in FIG. 9. Each of these members 94 comprises a pin 96, preferably frustoconical, which can be engaged selectively in the holes 84 or in the holes 86 and the end of which can be housed in the hollow of the U-shaped section 92. The pin 96 is provided with a head 98 in coated L, a branch 100 of which is capable of being hooked to the iron 90, the whole as shown in FIGS. 7 and 10.

On comprendra que le choix des trous 84, d'une part, et 86, d'autre part, établit l'écartement entre les deux parois Pl, P2 du coffrage, c'est-à-dire l'épaisseur de mur ou de la cloison que l'on veut obtenir. Pour disposer d'une gamme de largeurs étendue, le pas d, des trous 84 peut être de 5 cm, tandis que l'écartement d2 des deux trous 86 peut être de 2,5 cm. Ceci permet d'obtenir des épaisseurs de mur ou cloison échelonnées de 2,5 en 2,5 cm.It will be understood that the choice of holes 84, on the one hand, and 86, on the other hand, establishes the spacing between the two walls P l , P 2 of the formwork, that is to say the wall thickness or partition that we want to get. To have a wide range of widths, the pitch d, of the holes 84 can be 5 cm, while the spacing d 2 of the two holes 86 can be 2.5 cm. This makes it possible to obtain wall or partition thicknesses staggered from 2.5 to 2.5 cm.

Pour construire la deuxième paroi P2 dans une position très éloignée de la première paroi P, déjà construite et mise d'aplomb on fixe les montants 80, en position dressée, aux traverses 82, à l'aide des organes de fixation 94 et à une distance convenable de la première paroi Pl, ainsi qu'il est représenté en figure 10. Ensuite on construit la deuxième paroi P2 de la façon décrite ci-dessus.To build the second wall P 2 in a position very far from the first wall P, already constructed and plumb, the uprights 80 are fixed, in the upright position, at the cross members 82, using the fixing members 94 and at a suitable distance from the first wall P l , as shown in FIG. 10. Then the second wall P 2 is constructed in the manner described above.

Par la suite on approche de la première paroi P, la structure de la deuxième paroi P2. Si la structure de la deuxième paroi P2 est très lourde, on accouple les extrémités correspondantes des traverses 82 à un chariot 102 (figure 10) muni d'un galet de roulement 104 et qui comprend un coulisseau 106 susceptible d'être déplacé verticalement au moyen d'un dispositif à vis 108 et écrou. Le coulisseau 106 présente une double fourchette 110 dans laquelle peut être engagée l'extrémité de la traverse 82. Le déplacement de la deuxième paroi se fait alors avec les montants 80 soulevés du sol, par roulements des chariots 102 sur leurs galets 104. Au cours de ce rapprochement de la deuxième paroi P2 de la première P1, les traverses 82 sont introduites dans les ouvertures 88 des montants 28 (si elles n'avaient pas été déjà introduites au préalable), et sont ensuite verrouillées à l'aide des organes de fixation 94, de façon à ce que, à sa base, la face intérieure de la deuxième paroi P2 se trouve à une distance de la face intérieure opposée de la première paroi P, égale à l'épaisseur de mur ou de la cloison à obtenir.Then we approach the first wall P, the structure of the second wall P 2 . If the structure of the second wall P 2 is very heavy, the corresponding ends of the crosspieces 82 are coupled to a carriage 102 (FIG. 10) fitted with a running roller 104 and which comprises a slide 106 capable of being moved vertically at by means of a screw 108 and nut device. The slide 106 has a double fork 110 in which the end of the crosspiece 82 can be engaged. The displacement of the second wall is then done with the uprights 80 raised from the ground, by bearings of the carriages 102 on their rollers 104. During of this approximation of the second wall P 2 of the first P 1 , the cross members 82 are introduced into the openings 88 of the uprights 28 (if they had not already been introduced before), and are then locked using the fasteners 94, so that, at its base, the inner face of the second wall P 2 is at a distance from the opposite inner face of the first wall P, equal to the wall thickness or the partition to obtain.

Les traverses 82, si on ne prenait pas des mesures appropriées, resteraient noyées dans la base de l'ouvrage en béton et ne pourraient pas être récupérées. Pour pouvoir les récupérer, on glisse autour de chaque traverse 82 un manchon 112 (figures 2, 7 et 10) en matière rigide, telle que de la tôle ou de la matière plastique par exemple. Avec le manchon 112 on glisse également autour de la traverse 82 une paire de douilles terminales 114 à bride. Les brides des douilles 114 sont destinées à assurer l'étanchéité contre les faces intérieures des deux parois de la cavité de coulée et le manchon 112, interposé entre les brides des douilles 114, est destiné à isoler la traverse 82 par rapport au béton.The sleepers 82, if proper measures were not taken, would remain embedded in the base of the concrete structure and could not be recovered. In order to be able to recover them, a sleeve 112 (FIGS. 2, 7 and 10) is slid around each crosspiece 82 (made of rigid material, such as sheet metal or plastic, for example). With the sleeve 112, a pair of flanged end sleeves 114 is also slid around the crosspiece 82. The flanges of the sockets 114 are intended to seal against the internal faces of the two walls of the casting cavity and the sleeve 112, interposed between the flanges of the sockets 114, is intended to isolate the crosspiece 82 with respect to the concrete.

Après que le coffrage aura été démonté, les manchons 112 resteront noyés dans le béton durci et les traverses 82 et les douilles 114 pourront être retirées.After the formwork has been dismantled, the sleeves 112 will remain embedded in the hardened concrete and the sleepers 82 and the sockets 114 can be removed.

Pour compléter la liaison transversale entre les deux parois P, et P2 on relie enfin transversalement les parties supérieures des paires de montants 28 et 80.To complete the transverse connection between the two walls P, and P 2, the upper parts of the pairs of uprights 28 and 80 are finally connected transversely.

Pour permettre cette liaison transversale, chaque montant 28 et 80 présente, à son sommet, une paire de broches 116, de préférence tronconiques (figures 1, 2, 4 et 7).To allow this transverse connection, each upright 28 and 80 has, at its top, a pair of pins 116, preferably frustoconical (Figures 1, 2, 4 and 7).

On relie les sommets des paires de montants 28 et 30, ainsi que représenté sur les figures 1, 2 et 7, au moyen de paires d'éléments transversaux ou traverses supérieures 118. Les traverses 118 sont identiques aux traverses inférieures 82 et présentent des trous 122 analogues aux trous 84 et 86 des traverses inférieures.The vertices of the pairs of uprights 28 and 30 are connected, as shown in FIGS. 1, 2 and 7, by means of pairs of transverse elements or upper crosspieces 118. The crosspieces 118 are identical to the lower crosspieces 82 and have holes 122 similar to holes 84 and 86 of the lower crosspieces.

Les broches 116 sont susceptibles d'être engagées sélectivement dans les trous 122 de façon à obtenir également au sommet des deux parois P1 et P2 un écartement de leurs faces intérieures égale à l'épaisseur de mur ou de la cloison à obtenir.The pins 116 are capable of being selectively engaged in the holes 122 so as to also obtain, at the top of the two walls P 1 and P 2, a spacing of their internal faces equal to the thickness of the wall or of the partition to be obtained.

Par ce réglage de l'écartement supérieur on obtient aussi l'aplomb de la deuxième paroi P2, car la première paroi P avait déjà été mise d'aplomb précédemment.By this adjustment of the upper spacing, the plumb of the second wall P 2 is also obtained, since the first wall P had already been plumbed previously.

A la figure 10 est représentée une variante de la disposition des longerons et de la fixation des panneaux a ces longerons. On y retrouve encore les pattes d'accrochage 44, mais les longerons, référencés 57a, sont encastrés dans ces pattes 44 avec leur face en matière tendre, référencée 66a, tournée vers le panneaux référencés 68a. Cette variante se prête à la fixation de panneaux 68a en matière tendre, telle que du bois, susceptible de recevoir des clous 76a enfoncés à partir de la face des panneaux 68a tournée vers la cavité de coulée. Les panneaux 68a peuvent être les planches de bois usuelles comme mentionné précédemment, mais la variante de la figure 10 se prête notamment à l'application de panneaux 68a destinés à faire partie intégrante du mur ou de la cloison, tels que par exemple des panneaux en matériau d'isolation thermique et phonique. Dans ce cas l'utilisation des brides 70 décrites ci-dessus ne serait pas possible, car ces brides 70 ne pourraient pas être enlevées, trandis qu'il est possible de déclouer les longerons 58a des panneaux 68a et de trancher ensuite au ras de ces panneaux les pointes en saillie des clous 76a.In Figure 10 is shown a variant of the arrangement of the beams and the fixing of the panels to these beams. There are also the lugs 44, but the side members, referenced 57a, are embedded in these lugs 44 with their face of soft material, referenced 66a, facing the panels referenced 68a. This variant lends itself to the fixing of panels 68a of soft material, such as wood, capable of receiving nails 76a driven from the face of the panels 68a facing the casting cavity. The panels 68a can be the usual wooden planks as mentioned above, but the variant of FIG. 10 lends itself in particular to the application of panels 68a intended to form an integral part of the wall or the partition, such as for example panels in thermal and sound insulation material. In this case the use of the flanges 70 described above would not be possible, because these flanges 70 could not be removed, while it is possible to unclip the side members 58a of the panels 68a and then cut flush with these panels projecting points of nails 76a.

Un système de coffrage tel que représenté se prête à la coulée, d'un seul coup, de plusieurs murs périmétraux et cloisons intérieures d'un étage d'un bâtiment, selon une disposition qui peut être déduite immédiatement de la figure 1.A formwork system as shown lends itself to the casting, at a single stroke, of several perimeter walls and interior partitions of a floor of a building, according to an arrangement which can be deduced immediately from FIG. 1.

Les coffrages correspondant aux divers murs ou cloisons seront tous réalisés de la façon décrite ci-dessus et reliés entre eux aux angles. En ce qui concerne les angles extérieurs, les longerons 58 peuvent faire saillie par rapport aux arêtes, ainsi qu'il est représenté en figure 11. Cette saillie est même souhaitable, car elle permet d'installer, sur les parties en saillie, des éléments de butée 124, dont un est représenté à la figure 12. Chaque élément de butée 124 comprend un tronçon de profilé en C 126 destiné à embrasser le longeron 58 et qui présente des trous 128 pour sa fixation au moyen de clous à la latte 62 en matière tendre. A l'une de ses extrémités, l'élément 124 comporte une paire d'ailettes d'épaulement 130 renforcées par des goussets 132 et destinées à être appliquées contre les longerons 58, à leurs croisements, pour s'opposer à la poussée du béton fluide sans que dans ce but la présence de montants, tels que 28 ou 80, à l'endroit de l'arête soit nécessaire.The formwork corresponding to the various walls or partitions will all be made as described above and connected to each other at the corners. As regards the external angles, the side members 58 can project relative to the edges, as shown in FIG. 11. This projection is even desirable, because it makes it possible to install, on the projecting parts, elements stop 124, one of which is shown in FIG. 12. Each stop element 124 comprises a section of C section 126 intended to embrace the spar 58 and which has holes 128 for fixing it by means nails to the batten 62 in soft material. At one of its ends, the element 124 comprises a pair of shoulder fins 130 reinforced by gussets 132 and intended to be applied against the longitudinal members 58, at their intersections, to oppose the thrust of the concrete fluid without that for this purpose the presence of amounts, such as 28 or 80, at the location of the edge is necessary.

En ce qui concerne les angles intérieurs, où les longerons 58 ne peuvent pas faire saillie par rapport aux panneaux d'angle, on utilise des éléments de raccordement ou longerons en equerre, tel que celui représenté à la figure 13, dont la structure est analogue à celle des longerons 58. Un élément tel que représenté à la figure 13 comprend deux tronçons de profilés en forme de C 60a, 60b, soudés entre eux à .angle droit et dans chacun desquels est insérée et fixée au moyen de clous une latte 62a et 62b en bois ou en une matière tendre similaire.As regards the interior angles, where the side members 58 cannot protrude with respect to the corner panels, connection elements or side members are used, such as that shown in FIG. 13, the structure of which is similar to that of the side members 58. An element as shown in FIG. 13 comprises two sections of C-shaped sections 60a, 60b, welded together at a right angle and in each of which is inserted and fixed by means of nails a strip 62a and 62b of wood or a similar soft material.

Sur les figures 11 et 13 les faces accessibles en matière tendre sont celles tournées vers le haut, pour permettre l'utilisation avec les brides 70.In FIGS. 11 and 13 the accessible faces of soft material are those facing upwards, to allow use with the flanges 70.

Pour l'application à la variante de la figure 10, les faces accessibles seraient alors celles tournées vers les panneaux 68a.For application to the variant of Figure 10, the accessible faces would then be those facing the panels 68a.

Claims (7)

1. Shuttering system for casting a wall or concrete partition, in which two opposing flat surfaces (Pj, P2) which define between them a casting cavity are constituted by adjoining panels (68, 69, 68a) fixed to horizontal elongate members (58, 58a) by driven-in fixing members (76, 76a) such as nails, the said elongate members (58, 58a) being supported by vertical pillars (28, 80), characterised in that each pillar (28, 80) has a plurality of fixing formations (42a, 42b) along its face (38) facing into the casting cavity, to which formations are fixed, at a desired height, hook members (44) constituted by bent sheet steel elements which present an essentially U-shaped housing with a transverse section corresponding to that of two superimposed elongate members (58, 58a), the hook members (44) defining housings (46) which are open upwardly and a limb (50) of the housing (46) applied against the said interior face (38) of the pillar (28, 80), the housings (46) of the hook members (44) fixed substantially at the same level to two consecutive pillars (28, 80) supporting at least two superimposed elongate members (58, 58a) permitting these elongate members (58, 58a) to slide relative to each other longitudinally, and the faces (66a, 67) of the elongate members (58, 58a) engaged with the hook members (44), facing inwardly of the casting cavity, defining a common vertical plane, and in that the panels (68, 69, 68a) of the said surfaces (P1, P2) are elongate vertically and of arbitrary width, the panels (68, 68a) being fixed side by side against the said inner faces (66a, 67) of the elongate members (58, 58a) and being fixed to these elongate members by the said fixing members (76, 76a).
2. Shuttering system according to Claim 1, characterised in that each of the pillars (28, 80) has a plane sheet steel partition which defines the said interior face (38), the said fixing formations are constituted by horizontal slots (42a, 42b) formed in the partition and in that the bent sheet steel hook members (44) include a tongue (52) bent outwardly at right angles from the said limb (50) of the housing (46), the tongue (52) being passed through the slots (42a, 42b) and having a through hole (54) for receiving a retaining pin (56) behind the said sheet steel wall of the pillar (28, 80), and in that the said slots (42a, 42b) are located in pairs of which the two slots (42a, 42b) are spaced apart from each other longitudinally of the pillar (28, 80) by a distance equal to the dimension of an elongate member (58, 58a) in the same direction.
3. Shuttering system according to Claim 1 or Claim 2, characterised in that the elongate members (58, 58a) comprise C-sections (60, 60a) the channel of which is filled by a lath (62, 62a) of soft material in which the said fixing members (76, 76a) may be embedded through the accessible face (66, 66a) corresponding to the open face of the C-section (60, 60a).
4. Shuttering system according to Claim 3, characterised in that the housings (46) of the hook members (44) receive the elongate members (58a) with the said accessible faces (66a) of the laths (62a) facing inwardly of the casting cavity, and in that the said panels (68a) are of a material through which the said fixing members (76a) can pass to allow them to be fixed directly to the laths (62a).
5. Shuttering system according to Claim 3, characterised in that the housings (46) of the hook members (44) receive the elongate members (58) with the said accessible faces (66) of the laths (62) facing upwardly, and in which the system further includes bent sheet steel fixing bridges (70) cut in such a way that they have a wing (72) which is held on the said accessible face (66), the wing (72) having at least one through hole (74) for the passage of the said fixing members (76), a mask (77) located in a plane perpendicular to that of the wing (72) and passing through the slot formed between the edges of two adjoining panels (68), and a pair of flanges (78a, 78b) bent at a right angle with respect to the mask (77) on opposite sides thereof, the flanges (78a, 78b) being intended to maintain the two adjoining panels (68) with their faces facing inwardly of the casting cavity.
6. Shuttering system according to any one of the preceding claims, characterised in that it includes buttress elements (124) fixed to superimposed crossing parts of two elongate members (58) which project from the coin defined by two partitions of panels (68) between which an angle is formed, these buttress elements (124) comprising a C-shaped part (126) which is intended to embrace the projecting part of one of the elongate members (58) and shoulder tabs (130) intended to bear laterally against the projecting part of the other elongate member (58).
7. Method of assembly of a shuttering system for the casting of a wall or concrete partition, in which, in order to define a casting cavity, two opposing flat surfaces (Pj, P2) are formed by means of adjoining panels (68, 69, 68a) supported by pillars (28, 80) on which, when these have been aligned, there are hooked to the faces (38) facing inwardly of the casting cavity, a plurality of elongate members (58, 58a) located at random levels, these elongate members (58, 58a) being able to receive driven-in fixing members (76, 76a) such as nails for fixing the surfaces (P, and P2), characterised in that the hooking of the elongate members (58, 58a) to the pillars (28, 80) is effected by means of hook members (44), at least two superimposed elongate members (58, 58a) being placed in the said hook members (44) so that they can slide relative to each other longitudinally and the faces (66a, 67) of the elongate members (58, 58a) facing the casting cavity so as to define a common vertical plane, and in that the two surfaces (P,, P 2) are defined by means of elongate panels (68, 68a) of arbitrary width which are disposed vertically side by side against the said interior faces (66a, 67) of the elongate members (58, 58a) and which are fixed to the latter by means of the said fixing members (76, 76a).
EP80830018A 1979-03-28 1980-03-27 Shuttering system for casting concrete walls or partitions, and process for realizing this system Expired EP0017630B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80830018T ATE5091T1 (en) 1979-03-28 1980-03-27 FORMWORK SYSTEM FOR POURING CONCRETE WALLS OR WALLS AND METHOD OF ASSEMBLING THIS SYSTEM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT7967643A IT7967643A0 (en) 1979-03-28 1979-03-28 INTEGRAPID FLEXIBLE SYSTEM FOR VERTICAL REINFORCEMENT
IT6764379 1979-03-28

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EP0017630A1 EP0017630A1 (en) 1980-10-15
EP0017630B1 true EP0017630B1 (en) 1983-10-19

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EP (1) EP0017630B1 (en)
AT (1) ATE5091T1 (en)
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IT (1) IT7967643A0 (en)

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US3558095A (en) * 1968-01-10 1971-01-26 Ben D Marks Building wall apparatus
FR1596577A (en) * 1968-09-13 1970-06-22
CA946582A (en) * 1970-08-14 1974-05-07 Jean-Louis Manganese Structural element for building construction
US3734453A (en) * 1970-12-18 1973-05-22 A Bailey Tie rod assembly
US3730476A (en) * 1971-03-01 1973-05-01 H Prichard Unitized metal-stud concrete form structure
FR2129095A5 (en) * 1971-03-15 1972-10-27 Sogemat
US3790121A (en) * 1971-05-20 1974-02-05 Brock White Co Column form and clamp assembly
US3754729A (en) * 1971-12-27 1973-08-28 Symons Corp Groove-forming pattern assembly for a concrete wall form structure
US4033544A (en) * 1976-06-03 1977-07-05 Aluma Building Systems Incorporated Wall forming structure for poured concrete walls

Also Published As

Publication number Publication date
DE3065348D1 (en) 1983-11-24
ATE5091T1 (en) 1983-11-15
IT7967643A0 (en) 1979-03-28
US4290985A (en) 1981-09-22
EP0017630A1 (en) 1980-10-15

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