WO2005038158A1 - Connector for a self-supporting formwork for the production of a concrete and steel composite floor - Google Patents

Connector for a self-supporting formwork for the production of a concrete and steel composite floor Download PDF

Info

Publication number
WO2005038158A1
WO2005038158A1 PCT/FR2004/002586 FR2004002586W WO2005038158A1 WO 2005038158 A1 WO2005038158 A1 WO 2005038158A1 FR 2004002586 W FR2004002586 W FR 2004002586W WO 2005038158 A1 WO2005038158 A1 WO 2005038158A1
Authority
WO
WIPO (PCT)
Prior art keywords
support lever
self
transverse beam
fixing
bearing face
Prior art date
Application number
PCT/FR2004/002586
Other languages
French (fr)
Inventor
Léopold SOKOL
Original Assignee
Usinor
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Usinor filed Critical Usinor
Priority to SI200430853T priority Critical patent/SI1689948T1/en
Priority to DE602004016881T priority patent/DE602004016881D1/en
Priority to PL04791515T priority patent/PL1689948T3/en
Priority to DK04791515T priority patent/DK1689948T3/en
Priority to EP04791515A priority patent/EP1689948B1/en
Publication of WO2005038158A1 publication Critical patent/WO2005038158A1/en
Priority to HR20080672T priority patent/HRP20080672T3/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
    • E04B5/40Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element with metal form-slabs
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/17Floor structures partly formed in situ
    • E04B5/23Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
    • E04B5/29Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated the prefabricated parts of the beams consisting wholly of metal

Definitions

  • the present invention relates to the connection of a self-supporting metal formwork with the transverse beams on which it is supported.
  • the formwork is intended in particular for the manufacture of a concrete-steel composite floor.
  • To manufacture floors consisting of a concrete slab supported by metal beams it is known to use self-supporting forms consisting of profiled metal panels arranged side by side, supported by their ends on two parallel metal beams.
  • To manufacture panels of omega section having a central upper rib longitudinally ribbed and two lateral wings extended by lower flanges. It is known to put such panels supported by their lower flanges on the upper flanges of the transverse beams.
  • the object of the present invention is to overcome these disadvantages by proposing a connection between a profiled panel of a self-supporting metal formwork and a transverse support beam making it possible at the same time to make a floor of reduced thickness, to modify the calpinage at the same time. during the installation of the panels, to reduce the geometric imperfections of the panels and to ensure a good hold of the formwork to the right of its supports.
  • the subject of the invention is a connection of a self-supporting formwork for the manufacture of a concrete-steel composite floor, of the type comprising at least one profiled panel comprising an upper central zone provided with longitudinal ribs, supporting at least one of its ends on the upper flange of a transverse beam by means of a support lever which protrudes transversely to the transverse beam in the manner of a cantilever arm.
  • the support lever is a profile having an upper bearing face, and a lower bearing face, the upper bearing face having a longitudinal opening.
  • the support lever is arranged on the upper flange of the transverse beam in line with a longitudinal rib of the upper central region of the at least one profiled panel, so that the longitudinal rib cooperates with the edges of the opening longitudinal of the upper bearing face.
  • the support lever is held in position on the transverse beam by at least one fastening means.
  • the support lever has a dovetail section, and the upper support face has two flanges extending laterally outwardly of the support lever.
  • the support lever may also have a trapezoidal section, the upper bearing face having two upper flanges extending laterally towards each other, on either side of the longitudinal opening of the face of the upper support. In both cases, the edges of the upper flanges can be folded down.
  • the lower bearing face may comprise longitudinal stiffening folds.
  • the at least one means for fixing the support lever on the transverse beam may comprise at least one distribution plate and at least one bolt type fastening means, self-tapping screw or nail sealing, cooperating with the transverse beam.
  • the fixing means of the support lever on the transverse beam may also comprise a fixing means disposed at each of the ends of the support lever, at least one fastening means comprising a plate comprising a recess disposed at one end of the support lever so as to pinching the wing of the transverse beam between said plate comprising a recess and the lower bearing surface of the support lever, and at least one fixing bolt and a clamping bolt cooperating with said plate comprising a recess, and with the face of lower support of the support lever via a distribution plate.
  • the fixing means of the support lever may comprise a U-shaped clip fixed on the upper bearing surface of the support lever and cooperating with the lower face of a wing of the transverse beam.
  • the profiled panel is fixed on at least one support lever by means of screws.
  • the invention also relates to a device for fixing a self-supporting formwork on a transverse beam comprising a support lever consisting of a hollow profile having an upper bearing face having a longitudinal opening, and a means for fixing the support lever on a beam disposed on a first end of the hollow profile, at least one of said means for fixing the support lever on a beam consisting of a plate having a recess, a distribution plate and at least one fixing bolt and at least one clamping bolt.
  • One of the means for fixing the support lever on a beam may consist of a U-shaped clip fixed on the upper face of the support lever via at least one screw or a bolt.
  • the total thickness of the floor is reduced to a strict minimum, since the height of the formwork trays is not added in full to that of the beams, but instead, the trays are inserted in the height of the beams,
  • FIG. 1 is a partial perspective view of a self-supporting formwork consisting of profiled panels supported by transverse beams.
  • FIG. 2 is a schematic front view of a fixed connection of a profiled panel of a self-supporting formwork and a transverse support beam.
  • FIG. 1 The self-supporting metal formwork generally indicated by 1 in FIG. 1, consists of a plurality of profiled panels 2 or 3 arranged side by side and between support beams 4 and 5 on which they rest by means of support levers 6, 6 'or 7, so as to form a continuous web on which it will be possible to pour concrete to achieve a concrete slab.
  • FIG. 1 The self-supporting metal formwork generally indicated by 1 in FIG. 1, consists of a plurality of profiled panels 2 or 3 arranged side by side and between support beams 4 and 5 on which they rest by means of support levers 6, 6 'or 7, so as to form a continuous web on which it will be possible to pour concrete to achieve a concrete slab.
  • the beam 4 corresponds to a bank beam of the concrete slab on which rests only a series of profiled panels 22 all arranged on the same side, whereas the beam 5 is an intermediate beam on which two series of profiled panels 2 and 3.
  • a first series located on one side, consists of the identified panels 2, which also rest on the edge beam 4.
  • a second series of marked panels 3 which rest on the other side of the beam 5 and another beam not shown in the figure.
  • a profiled panel 2 or 3 with an Omega-shaped section so as to have a central zone 8 or 8 'extended on either side by side wings 9 (only one visible in the figure) or 9' extended by lower flanges 10 (only one visible in the figure) or 10 '.
  • the upper central zone 8 or 8 ' comprises two longitudinal stiffening ribs 11, separated by a transverse groove 12 or 12'.
  • the support levers 6, 6 'or 7 which rest on the one hand on the upper flanges 13 or 14 of the transverse support beams 4 or 5, consist of hollow sections extending partially under the central upper panels 8 or 8' of the panels sections 2 or 3, to the right of the ribs 11 or 11 'of the upper central range.
  • the support lever 6 has a dovetail section which rests on its underside. 18 on the upper flange 13 of the support beam 4.
  • the upper bearing surface 16 of the support lever 6 has a longitudinal opening 17 of width equal to the width of the longitudinal rib 11 of stiffening the upper central region 8 of the profiled panel 2, so that the stiffening rib 11 of the profiled panel 2 are embedded in the longitudinal opening 17 of the support lever.
  • the longitudinal rib of the panel 11 of the profiled panel 2 co-operates with the edges of the longitudinal opening 17 of the support lever and thus makes it possible to center and maintain in position the profiled panel 2.
  • the lever support 6 is attached to the sole
  • the profiled panel 2 can be fixed on the supports 6 by means of self-tapping screws 21 which come to be fixed in the upper bearing face 16 of the support lever 6 by passing through the upper central zone 8 of the profiled panel 2.
  • the connection between the panels of the formwork self-supporting and transverse support beams is adjustable and not fixed as in the previous case, which allows adjustments on sites on the one hand to change the calpinage, and secondly to compensate for geometric defects that can present the profiled panels.
  • FIG. 3 corresponding to a first variant, there is shown the connection of two profiled panels 2 and 3 of a self-supporting formwork with an intermediate transverse beam 5 disposed between the two profiled panels 2 and 3.
  • the panels 2 and 3 are supported by a support lever 7 extending cantilevered on either side of the upper flange 14 of the beam 5.
  • the support lever 7 is a hollow section having a tail-shaped section. dovetail whose upper bearing surface 26 has a longitudinal opening 27 intended to cooperate with the rib 11 of the profiled panel 2 and with the longitudinal rib 11 'of the profiled panel 3.
  • the panel 2 and the panel 3 are fixed on the upper bearing face 26 of the support lever 7 by means of self-tapping screws 34.
  • the support lever 7 rests by its lower bearing face 28 on the upper flange 14 of the transverse beam. intermediate 5.
  • the support lever 7 is fixed on the upper flange 14 of the intermediate transverse beam 5 by two identical Z-clip devices generally marked with 40, arranged at each of the ends 7 A and 7 B of the support lever 7. the corresponding parts of the two connecting means are identified by the same references. Only one of its clip fasteners will be described.
  • the fastening device Z clip consists of a lower plate 29 having a recess 30, fixed under the lower bearing surface 28 of the support lever 7 so as to pinch the upper flange 14 of the beam 5, between the lower plate 29 and the lower bearing face 28 of the support lever 7.
  • the lower plate with crocheting 29 is fixed on the support lever 7 by means of a fixing screw 31 disposed in the part of the lower plate 29 which is in contact with the lower bearing surface 28 of the support lever 7, and a bolt of tightening 32 disposed beyond the recess of the plate 29, so as to clamp the sole 14 of the transverse beam 5 between the plate 29 and the bearing face 28 of the support lever 7.
  • the two bolts 31 and 32 cooperate with the lower wall of the support lever 7 by means of a distribution plate 33.
  • FIG 4 corresponding to the second variant, there is shown a support lever 6 'on a transverse beam 4 located at the edge of a concrete slab.
  • the support lever 6 ' supports only one profiled panel, and therefore only protrudes in cantilever on one side of the upper flange 13 of the transverse beam 4.
  • the support lever 6' On the side where the support lever 6' supports a profiled panel 2, the support lever 6 'is fixed on the upper flange 13 of the transverse beam 4 by means of a Z-shaped clip generally marked 40 identical to that which has been described above.
  • the support lever 6 'does On the other side, where the support lever 6 'does not have to support profiled panel and therefore does not exceed the edge of the upper flange 13 of the beam 4, the support lever 6' is maintained on the upper flange 13 of the beam 4 by means of a U-shaped clip generally indicated by 41 whose function is to take up the torque tending to raise the end of the support lever 6 'when a large load is supported by the profiled panel 2.
  • This U-shaped clip 41 comprises a lower sole 42 which bears under the sole 13 of the beam 4, and an upper sole 43 which bears against the upper bearing face 16 'of the support lever 6'. and which is fixed on this upper bearing surface by a plurality of self-tapping screws 44.
  • the flanges 42 and 43 of the U-shaped clip are interconnected by a web 45.
  • This U-shaped clip is intended solely to prevent the tilting up the end of the support lever 6 which does not support profiled panel does not prevent to move laterally along the beam 4 the support lever 6 'when the Z-shaped clip 40 is loosened.
  • the section of the support lever can have various shapes as shown in FIG. 5. It can for example, as in FIG. 5A, have a dovetail-shaped section with upper lateral wings 50A and 51A extending outwardly and flanking an opening 52A. They can also be as in FIG. 5B have a dovetail shape with wings 50 B and 51 B surrounding an opening 52 B, the wings 50 B and 51 B extending outwards and the banks 53 B and 54 B of these wings being folded towards the bottom.
  • the lower bearing surface 55 B of the support lever may comprise stiffening ribs 56 B.
  • FIG. 5A have a dovetail-shaped section with upper lateral wings 50A and 51A extending outwardly and flanking an opening 52A. They can also be as in FIG. 5B have a dovetail shape with wings 50 B and 51 B surrounding an opening 52 B, the wings 50 B and 51 B extending outwards and the banks 53 B and 54 B of these wings being folded towards the bottom.
  • the lower bearing surface 55 B of the support lever may comprise stiff
  • the profile may be trapezoidal in shape and the upper bearing face may comprise flanges 50 C and 51 C extending inwardly of the profile on either side of a longitudinal opening 52 C.
  • the upper flanges 50D and 51D of the profile may have 53D and 54D rims folded downwards, these 53D and 54D edges surrounding the longitudinal opening 52D.
  • the lower support faces of these profiles may also comprise longitudinal stiffening ribs. Any other form of profile is possible as long as they allow the support of the profiled panels for the soles upper transverse beams, being arranged in line with the longitudinal ribs of the upper surfaces of the profiled panels, so as to maintain in lateral position the profiled panels.
  • any mode of attachment of the support levers on the upper flanges of the transverse beams can be adjusted at will is possible.
  • the Z-shaped clip can be replaced by any clamping plate fulfilling the same function and the number of clamping or fixing bolts can be adapted according to the particular needs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Rod-Shaped Construction Members (AREA)

Abstract

The invention relates to a connector, for a self-supporting formwork for the production of a concrete and steel composite floor of the type comprising at least one profiled sheet (2), with an upper central sheet (8), provided with longitudinal ribs (11), resting with at least one extremity thereof on the upper flange (13) of a transverse beam (4) by means of a support bar (6), projecting transversely from the transverse beam in the manner of a cantilevered arm in which the support bar (6) is a profile comprising an upper support face (16) with a longitudinal opening (17) and a lower support face (18). The support bar (6) is arranged on the upper flange (13) of the transverse beam (4), along a longitudinal rib (11) of the upper central sheet (8) of the at least one profiled sheet (2), such that said longitudinal rib (11) cooperates with said longitudinal opening (17), the support bar (6) being held in position on the transverse beam by means of at least one fixing means. The invention further relates to a means for fixing a profiled sheet.

Description

Liaison d'un coffrage autoportant pour la fabrication d'un plancher composite béton-acier. Bonding a freestanding formwork for the manufacture of a concrete-steel composite floor.
La présente invention est relative à la liaison d'un coffrage métallique autoportant avec les poutres transversales sur lesquelles il est en appui. Le coffrage est destiné notamment à la fabrication d'un plancher composite béton-acier. Pour fabriquer des planchers constitués d'une dalle de béton supportée par des poutres métalliques, il est connu d'utiliser des coffrages autoportants constitués de panneaux métalliques profilés disposés côte à côte, en appui par leurs extrémités sur deux poutres parallèles métalliques. En particulier, il est connu d'utilisé des panneaux de section en oméga comportant une plage centrale supérieure nervurée longitudinalement et deux ailes latérales prolongées par des semelles inférieures. Il est connu de mettre de tels panneaux en appui par leurs semelles inférieures sur les semelles supérieures des poutres transversales. Mais cette disposition présente l'inconvénient de conduire à une épaisseur totale de plancher très importante puisqu'elle correspond à la somme de la hauteur d'une poutre transversale et de l'épaisseur de la dalle en béton. Afin de réduire l'épaisseur du plancher, on a proposé d'élargir les semelles inférieures des poutres transversales et de faire reposer les extrémités des panneaux sur les semelles inférieures des poutres. Cette technique présente cependant l'inconvénient d'augmenter le coût des poutres transversales et de nécessiter un renforcement de l'extrémité des panneaux afin d'éviter le poinçonnement des âmes de ceux-ci. Afin de réaliser des planchers pas trop épais et d'éviter le poinçonnement par mise en compression des âmes des panneaux, on a proposé de faire reposer les plages centrales des panneaux sur les semelles supérieures des poutres transversales par l'intermédiaire de supports qui font saillie transversalement à la manière de bras en porte-à-faux au-delà des poutres transversales. Les supports sont fixés sur les poutres transversales avant la pose des panneaux dans des positions telles qu'ils coopèrent avec les panneaux le long des arrêtes de liaison entre les plages centrales supérieures et les ailes latérales des panneaux. Cette disposition présente l'inconvénient d'être difficile à mettre en œuvre sur un chantier du fait, notamment, des imperfections géométriques des panneaux. En outre, avec cette disposition, l'écartement latéral des points d'appui d'un panneau est maximal, ce qui n'est pas favorable au bon maintien de la plage centrale du panneau. Le but de la présente invention est de remédier à ces inconvénients en proposant une liaison entre un panneau profilé d'un coffrage métallique autoportant et une poutre support transversale permettant tout à la fois de réaliser un plancher d'épaisseur réduite, de modifier le calpinage au cours de la pose des panneaux, de résorber les imperfections géométriques des panneaux et d'assurer une bonne tenue du coffrage au droit de ses appuis. A cet effet, l'invention a pour objet une liaison d'un coffrage autoportant pour la fabrication d'un plancher composite béton-acier, du type comprenant au moins un panneau profilé comportant une plage centrale supérieure munie de nervures longitudinales, s'appuyant en au moins une de ses extrémités sur la semelle supérieure d'une poutre transversale par l'intermédiaire d'un levier support qui fait saillie transversalement à la poutre transversale à la manière d'un bras en porte-à-faux. Dans cette liaison, le levier support est un profilé ayant une face d'appui supérieure, et une face d'appui inférieure, la face d'appui supérieure comportant une ouverture longitudinale. Le levier support est disposé sur l'aile supérieure de la poutre transversale au droit d'une nervure longitudinale de la plage centrale supérieure de l'au moins un panneau profilé, de telle sorte que la nervure longitudinale coopère avec les bords de l'ouverture longitudinale de la face d'appui supérieure. Le levier support est maintenu en position sur la poutre transversale par au moins un moyen de fixation. De préférence, le levier support a une section en queue d'aronde, et la face d'appui supérieure comporte deux semelles s'étendant latéralement vers l'extérieur du levier support. Le levier support peut également avoir une section en forme de trapèze, la face d'appui supérieure comportant deux semelles supérieures s'étendant latéralement l'une vers l'autre, de part et d'autre de l'ouverture longitudinale de la face d'appui supérieure. Dans les deux cas, les rives des semelles supérieures peuvent être rabattues vers le bas. En outre, la face d'appui inférieure peut comporter des plis raidisseurs longitudinaux. L'au moins un moyen de fixation du levier support sur la poutre transversale peut comprendre au moins une plaquette de répartition et au moins un moyen de solidarisation du type boulon, vis auto-taraudeuse ou clou de scellement, coopérant avec la poutre transversale. Le moyen de fixation du levier support sur la poutre transversale, peut également comprendre un moyen de fixation disposé à chacune des extrémités du levier support, au moins un moyen de fixation comprenant une plaque comportant un décrochement disposé sous une extrémité du levier support de façon à pincer l'aile de la poutre transversale entre ladite plaque comprenant un décrochement et la face d'appui inférieure du levier support, et au moins un boulon de fixation et un boulon de serrage coopérant avec ladite plaque comprenant un décrochement, et avec la face d'appui inférieure du levier support par l'intermédiaire d'une plaquette de répartition. Le moyen de fixation du levier support peut comprendre un clip en U fixé sur la face d'appui supérieure du levier support et coopérant avec la face inférieure d'une aile de la poutre transversale. De préférence, le panneau profilé est fixé sur au moins un levier support par l'intermédiaire de vis. L'invention concerne également un dispositif de fixation d'un coffrage autoportant sur une poutre transversale comprenant un levier support constitué d'un profilé creux comportant une face d'appui supérieure présentant une ouverture longitudinale, et un moyen de fixation du levier support sur une poutre disposé sur une première extrémité du profilé creux, au moins un desdits moyens de fixation du levier support sur une poutre étant constitué d'une plaque comportant un décrochement, d'une plaque de répartition et d'au moins un boulon de fixation et d'au moins un boulon de serrage. Un des moyens de fixation du levier support sur une poutre peut être constitué d'un clip en U fixé sur la face supérieure du levier support par l'intermédiaire d'au moins une vis ou un boulon. Avec le dispositif d'appui proposé on satisfait en même temps tous les critères essentiels d'optimisation recherchés :The present invention relates to the connection of a self-supporting metal formwork with the transverse beams on which it is supported. The formwork is intended in particular for the manufacture of a concrete-steel composite floor. To manufacture floors consisting of a concrete slab supported by metal beams, it is known to use self-supporting forms consisting of profiled metal panels arranged side by side, supported by their ends on two parallel metal beams. In particular, it is known to use panels of omega section having a central upper rib longitudinally ribbed and two lateral wings extended by lower flanges. It is known to put such panels supported by their lower flanges on the upper flanges of the transverse beams. But this arrangement has the disadvantage of leading to a very large total floor thickness since it corresponds to the sum of the height of a transverse beam and the thickness of the concrete slab. In order to reduce the thickness of the floor, it has been proposed to widen the bottom flanges of the transverse beams and to rest the ends of the panels on the lower flanges of the beams. However, this technique has the disadvantage of increasing the cost of the transverse beams and requiring a strengthening of the ends of the panels to avoid punching souls thereof. In order to achieve not too thick floors and to avoid punching by compressing the souls of the panels, it has been proposed to rest the central panels of the panels on the upper flanges of the transverse beams by means of supports that protrude transversely in the manner of cantilever arms beyond the transverse beams. The supports are fixed on the transverse beams before the panels are laid in positions such that they cooperate with the panels along the connecting edges between the upper central and the lateral wings of the panels. This arrangement has the disadvantage of being difficult to implement on a site because, in particular, geometric imperfections panels. In addition, with this arrangement, the lateral spacing of the support points of a panel is maximum, which is not conducive to the proper maintenance of the central range of the panel. The object of the present invention is to overcome these disadvantages by proposing a connection between a profiled panel of a self-supporting metal formwork and a transverse support beam making it possible at the same time to make a floor of reduced thickness, to modify the calpinage at the same time. during the installation of the panels, to reduce the geometric imperfections of the panels and to ensure a good hold of the formwork to the right of its supports. For this purpose, the subject of the invention is a connection of a self-supporting formwork for the manufacture of a concrete-steel composite floor, of the type comprising at least one profiled panel comprising an upper central zone provided with longitudinal ribs, supporting at least one of its ends on the upper flange of a transverse beam by means of a support lever which protrudes transversely to the transverse beam in the manner of a cantilever arm. In this connection, the support lever is a profile having an upper bearing face, and a lower bearing face, the upper bearing face having a longitudinal opening. The support lever is arranged on the upper flange of the transverse beam in line with a longitudinal rib of the upper central region of the at least one profiled panel, so that the longitudinal rib cooperates with the edges of the opening longitudinal of the upper bearing face. The support lever is held in position on the transverse beam by at least one fastening means. Preferably, the support lever has a dovetail section, and the upper support face has two flanges extending laterally outwardly of the support lever. The support lever may also have a trapezoidal section, the upper bearing face having two upper flanges extending laterally towards each other, on either side of the longitudinal opening of the face of the upper support. In both cases, the edges of the upper flanges can be folded down. In addition, the lower bearing face may comprise longitudinal stiffening folds. The at least one means for fixing the support lever on the transverse beam may comprise at least one distribution plate and at least one bolt type fastening means, self-tapping screw or nail sealing, cooperating with the transverse beam. The fixing means of the support lever on the transverse beam may also comprise a fixing means disposed at each of the ends of the support lever, at least one fastening means comprising a plate comprising a recess disposed at one end of the support lever so as to pinching the wing of the transverse beam between said plate comprising a recess and the lower bearing surface of the support lever, and at least one fixing bolt and a clamping bolt cooperating with said plate comprising a recess, and with the face of lower support of the support lever via a distribution plate. The fixing means of the support lever may comprise a U-shaped clip fixed on the upper bearing surface of the support lever and cooperating with the lower face of a wing of the transverse beam. Preferably, the profiled panel is fixed on at least one support lever by means of screws. The invention also relates to a device for fixing a self-supporting formwork on a transverse beam comprising a support lever consisting of a hollow profile having an upper bearing face having a longitudinal opening, and a means for fixing the support lever on a beam disposed on a first end of the hollow profile, at least one of said means for fixing the support lever on a beam consisting of a plate having a recess, a distribution plate and at least one fixing bolt and at least one clamping bolt. One of the means for fixing the support lever on a beam may consist of a U-shaped clip fixed on the upper face of the support lever via at least one screw or a bolt. With the proposed support device, all the essential optimization criteria sought are satisfied at the same time:
- l'épaisseur totale du plancher est réduite à un strict minimum, étant donné que la hauteur des plateaux de coffrage ne se rajoute pas intégralement à celle des poutres, mais au contraire, les plateaux s'insèrent dans la hauteur des poutres,- The total thickness of the floor is reduced to a strict minimum, since the height of the formwork trays is not added in full to that of the beams, but instead, the trays are inserted in the height of the beams,
- on évite tout risque de poinçonnement des âmes étant donné que celles-ci se trouvent en traction,- there is no risk of punching souls as they are in tension,
- en phase de chantier, le système de coffrage est rendu insensible aux imperfections des dimensions géométriques des panneaux de coffrage et d'imprécision de montage. L'invention va maintenant être décrite de façon plus précise, mais non limitative, en regard des figures annexées dans lesquelles:- In the construction phase, the formwork system is rendered insensitive to the imperfections of the geometric dimensions of the shuttering panels and imprecision of assembly. The invention will now be described more precisely, but not limitatively, with reference to the appended figures in which:
- la figure 1 est une vue en perspective partielle d'un coffrage autoportant constitué de panneaux profilés supportés par des poutres transversales.- Figure 1 is a partial perspective view of a self-supporting formwork consisting of profiled panels supported by transverse beams.
- la figure 2 est une vue schématique de face d'une liaison fixe d'un panneau profilé d'un coffrage autoportant et d'une poutre support transversale.- Figure 2 is a schematic front view of a fixed connection of a profiled panel of a self-supporting formwork and a transverse support beam.
- les figures 3 A et 3 B sont des vues schématiques de face et de côté d'une liaison ajustable de deux panneaux profilés d'un coffrage autoportant et d'une poutre support transversale, partiellement en coupe. - les figures 4 A et 4 B sont des vues schématiques de face et de côté d'une liaison ajustable d'un panneau profilé d'un coffrage autoportant et de poutres support transversales, partiellement en coupe. Le coffrage métallique autoportant repéré généralement par 1 à la figure 1 , est constitué d'une pluralité de panneaux profilés 2 ou 3 disposés côte à côte et entre des poutres support 4 et 5 sur lesquelles ils reposent par l'intermédiaire de leviers support 6, 6' ou 7, de façon à former une nappe continue sur lequel il sera possible de couler du béton afin de réaliser une dalle en béton. Sur la figure 1 , la poutre 4 correspond à une poutre de rive de la dalle en béton sur laquelle ne repose qu'une série de panneaux profilés 22 tous disposés du même côté, alors que la poutre 5 est une poutre intermédiaire sur laquelle reposent deux séries de panneaux profilés 2 et 3. D'une part, une première série, située d'un côté, est constituée des panneaux repérés 2, qui reposent également sur la poutre de rive 4. D'autre part une deuxième série de panneaux repérés 3 qui s'appuient sur l'autre côté de la poutre 5 et sur une autre poutre non représentée sur la figure. Un panneau profilé 2 ou 3 à une section en forme d'Oméga de façon à comporter une plage centrale 8 ou 8' prolongée de part et d'autre par des ailes latérales 9 (une seule visible sur la figure) ou 9' prolongées par des semelles inférieures 10 (une seule visible sur la figure) ou 10'. La plage centrale supérieure 8 ou 8' comporte deux nervures longitudinales 11 de raidissement, séparé par un rainurage transversal 12 ou 12'. Les leviers supports 6, 6' ou 7 qui reposent d'une part sur les semelles supérieures 13 ou 14 des poutres supports transversales 4 ou 5, sont constitués de profilés creux s'étendant partiellement sous les plages centrales supérieures 8 ou 8' des panneaux profilés 2 ou 3, au droit des nervures 11 ou 11' de la plage supérieure centrale. Dans un premier mode de réalisation, représenté à la figure 2, le levier support 6 a une section en queue d'aronde qui repose par sa face inférieure 18 sur la semelle supérieure 13 de la poutre d'appuie 4. La face d'appui supérieure 16 du levier support 6 comporte une ouverture longitudinale 17 de largeur égale à la largeur de la nervure longitudinale 11 de rigidification de la plage centrale supérieure 8 du panneau profilé 2, de façon à ce que la nervure de rigidification 11 du panneau profilé 2 viennent s'encastrer dans l'ouverture longitudinale 17 du levier support. Avec cette disposition, la nervure longitudinale du panneau 11 du panneau profilé 2 vient coopérer avec les bords de l'ouverture longitudinale 17 du levier support et ainsi permet de centrer et de maintenir en position le panneau profilé 2. Dans ce mode de réalisation, le levier support 6 est fixé sur la semelle- Figures 3A and 3B are schematic front and side views of an adjustable connection of two profiled panels of a self-supporting formwork and a transverse support beam, partially in section. - Figures 4 A and 4 B are schematic front and side views of an adjustable connection of a profiled panel of a self-supporting formwork and transverse support beams, partially in section. The self-supporting metal formwork generally indicated by 1 in FIG. 1, consists of a plurality of profiled panels 2 or 3 arranged side by side and between support beams 4 and 5 on which they rest by means of support levers 6, 6 'or 7, so as to form a continuous web on which it will be possible to pour concrete to achieve a concrete slab. In FIG. 1, the beam 4 corresponds to a bank beam of the concrete slab on which rests only a series of profiled panels 22 all arranged on the same side, whereas the beam 5 is an intermediate beam on which two series of profiled panels 2 and 3. On the one hand, a first series, located on one side, consists of the identified panels 2, which also rest on the edge beam 4. On the other hand a second series of marked panels 3 which rest on the other side of the beam 5 and another beam not shown in the figure. A profiled panel 2 or 3 with an Omega-shaped section so as to have a central zone 8 or 8 'extended on either side by side wings 9 (only one visible in the figure) or 9' extended by lower flanges 10 (only one visible in the figure) or 10 '. The upper central zone 8 or 8 'comprises two longitudinal stiffening ribs 11, separated by a transverse groove 12 or 12'. The support levers 6, 6 'or 7 which rest on the one hand on the upper flanges 13 or 14 of the transverse support beams 4 or 5, consist of hollow sections extending partially under the central upper panels 8 or 8' of the panels sections 2 or 3, to the right of the ribs 11 or 11 'of the upper central range. In a first embodiment, shown in FIG. 2, the support lever 6 has a dovetail section which rests on its underside. 18 on the upper flange 13 of the support beam 4. The upper bearing surface 16 of the support lever 6 has a longitudinal opening 17 of width equal to the width of the longitudinal rib 11 of stiffening the upper central region 8 of the profiled panel 2, so that the stiffening rib 11 of the profiled panel 2 are embedded in the longitudinal opening 17 of the support lever. With this arrangement, the longitudinal rib of the panel 11 of the profiled panel 2 co-operates with the edges of the longitudinal opening 17 of the support lever and thus makes it possible to center and maintain in position the profiled panel 2. In this embodiment, the lever support 6 is attached to the sole
13 de la poutre d'appui 4 par l'intermédiaire d'un moyen de fixation 20 tel qu'un boulon, un clou de scellement ou une vis auto-taraudeuse, dont la tête vient s'appuyer sur la face d'appui inférieure 15 du levier support 6 par l'intermédiaire d'une plaquette de répartition 19. Lorsque le levier support 6 est destiné à supporter un panneau 2 au voisinage de la rive de la dalle comme cela est représenté sur la figure 1 , ce levier support s'étend en porte à faux au-delà de la semelle supérieure 13 de la poutre 4 du côté où se trouvent des panneaux profilés 2, mais ils ne débordent pas des bords de la semelle supérieure 13 du côté où il n'y a pas de panneau. En revanche lorsque le levier support est destiné à reposer sur une poutre intermédiaire 5, et donc à supporter des panneaux disposés sur la poutre 5, ce levier support, repéré 7 à la figure 1, qui a la même forme que le levier support 6, a une longueur suffisante pour déborder en porte à faux de part et d'autre de la semelle supérieure 14 de la poutre intermédiaire 5. Le panneau profilé 2 peut être fixé sur les supports 6 à l'aide de vis auto-taraudeuse 21 qui viennent se fixer dans la face d'appui supérieure 16 du levier support 6 en passant à travers la plage centrale supérieure 8 du panneau profilé 2. Dans un deuxième mode de réalisation comportant deux variantes représentées aux figures 3 et 4, la liaison entre les panneaux des coffrages auto-portant et les poutres supports transversales, est ajustable et non plus fixe comme dans le cas précédent, ce qui permet des réglages sur les chantiers d'une part pour modifier le calpinage, et d'autre part pour compenser les défauts géométriques que peuvent présenter les panneaux profilés. A la figure 3 correspondant à une première variante, on a représenté la liaison de deux panneaux profilés 2 et 3 d'un coffrage auto portant avec une poutre transversale intermédiaire 5 disposée entre les deux panneaux profilés 2 et 3. Les panneaux 2 et 3 sont supportés par un levier support 7 s'étendant en porte à faux de part et d'autre de la semelle supérieure 14 de la poutre 5. Comme dans le cas précédent, le levier support 7 est un profilé creux ayant une section en de forme queue d'aronde dont la face supérieure d'appui 26 comporte une ouverture longitudinale 27 destinée à coopérer avec la nervure 11 du panneau profilé 2 et avec la nervure longitudinale 11' du panneau profilé 3. Comme le cas précédent, le panneau 2 et le panneau 3 sont fixés sur la face d'appui supérieure 26 du levier support 7 par l'intermédiaire de vis auto-taraudeuses 34. Le levier support 7 repose par sa face d'appui inférieure 28 sur la semelle supérieure 14 de la poutre transversale intermédiaire 5. Le levier support 7 est fixé sur la semelle supérieure 14 de la poutre transversale 5 intermédiaire par deux dispositifs à clip en Z identiques repérés généralement par 40, disposés à chacune des extrémités 7 A et 7 B du levier support 7. Sur la figure les pièces correspondantes des deux moyens de jonction sont repérées par les mêmes repères. On ne décrira que l'un de ses dispositifs de fixation par clip. Le dispositif de fixation par clip en Z est constitué d'une plaque inférieure 29 comportant un décrochement 30, fixée sous la face d'appui inférieure 28 du levier support 7 de façon à pouvoir pincer la semelle supérieure 14 de la poutre 5, entre la plaque inférieure 29 et la face d'appui inférieure 28 du levier support 7. La plaque inférieure avec de crochement 29 est fixée sur le levier support 7 par l'intermédiaire d'une vis de fixation 31 disposée dans la partie de la plaque inférieure 29 qui est au contact de la face d'appui inférieure 28 du levier support 7, et d'un boulon de serrage 32 disposé au delà du décrochement de la plaque 29, de façon à pouvoir serrer la semelle 14 de la poutre transversale 5 entre la plaque 29 et la face d'appui 28 du levier support 7. Les deux boulons 31 et 32 coopèrent avec la paroi inférieure du levier support 7 par l'intermédiaire d'une plaque de répartition 33. Ce moyen de fixation du levier supérieur 7 sur la semelle supérieure 14 de la poutre 5 a l'avantage de pouvoir être serré et desserré sur le chantier, ce qui permet de régler la position du levier support 7 le long de la poutre support transversale 5 et donc d'ajuster la position du levier support à la géométrie de tel ou tel panneau profilé. A la figure 4, correspondant à la deuxième variante, on a représenté un levier d'appui 6' sur une poutre transversale 4 situé en bordure d'une dalle en béton. Dans cette variante, le levier support 6' ne supporte qu'un seul panneau profilé, et donc ne déborde en porte à faux que d'un côté de la semelle supérieure 13 de la poutre transversale 4. Du côté où le levier support 6' supporte un panneau profilé 2, le levier support 6' est fixé sur la semelle supérieure 13 de la poutre transversale 4 par l'intermédiaire d'un clip en Z repéré généralement par 40 identique à celui qui a été décrit précédemment. De l'autre côté, où le levier support 6' n'a pas à supporter de panneau profilé et donc ne dépasse pas du bord de la semelle supérieure 13 de la poutre 4, le levier support 6' est maintenu sur la semelle supérieure 13 de la poutre 4 par l'intermédiaire d'un clip en U repéré généralement par 41 qui a pour fonction de reprendre le couple tendant à faire relever l'extrémité du levier support 6' lorsque une charge importante est supportée par le panneau profilé 2. Ce clip en U 41 comporte une semelle inférieure 42 qui vient s'appuyer sous la semelle 13 de la poutre 4, et une semelle supérieure 43 qui vient s'appuyer au dessus de la face d'appui supérieur 16' du levier support 6' et qui est fixé sur cette face d'appui supérieur par une pluralité de vis auto- taraudeuse 44. Les semelles 42 et 43 du clip en U sont reliées entre elles par une âme 45. Ce clip en U qui est destiné uniquement à empêcher le basculement vers le haut de l'extrémité du levier support 6 qui ne supporte pas de panneau profilé n'empêche pas de déplacer latéralement le long de la poutre 4 le levier support 6' lorsque le clip en Z 40 est desserré. Ainsi, il est possible de régler la position du levier support 6' en fonction des besoins et notamment des irrégularités de géométrie de panneau 2. La section du levier support peut avoir des formes diverses comme représenté à la figure 5. Il peut par exemple, comme à la figure 5 A, avoir une section en forme de queue d'aronde avec des ailes latérales supérieures 50 A et 51 A s'étendant vers l'extérieur et encadrant une ouverture 52 A. Ils peuvent également comme à la figure 5 B avoir une forme de queue d'aronde avec des ailes 50 B et 51 B entourant une ouverture 52 B, les ailes 50 B et 51 B s'étendant vers l'extérieur et les rives 53 B et 54 B de ces ailes étant repliées vers le bas. En outre, et comme représentée dans ce cas particulier mais comme cela est possible également pour tout profil, la face d'appui inférieur 55 B du levier support peut comporter des nervures de rigidification 56 B. Dans un autre mode de réalisation, représenté sur la figure 5 C, le profil peut être de forme trapézoïdale et la face d'appui supérieure peut comporter des ailes 50 C et 51 C s'étendant vers l'intérieur du profilé de part et d'autre d'une ouverture longitudinale 52 C. Comme représenté à la figure 5 D, les semelles supérieures 50 D et 51 D du profilé peuvent avoir des rives 53 D et 54 D rabattues vers le bas, ces rives 53 D et 54 D entourant l'ouverture longitudinale 52 D. Comme indiqué précédemment les faces support inférieures de ces profilés peuvent également comporter des nervures de rigidifications longitudinales. Toute autre forme de profilé est possible pour autant qu'elles permettent d'assurer le support des panneaux profilés pour les semelles supérieures des poutres transversales, en étant disposé au droit des nervures longitudinales des plages supérieures des panneaux profilés, de façon à pouvoir maintenir en position latérale les panneaux profilés. De même, tout mode d'attache des leviers support sur les semelles supérieures des poutres transversales pouvant être réglé à volonté est possible. En particulier, le clip en Z peut être remplacé par toute plaque de serrage remplissant la même fonction et le nombre de boulons de serrage ou de fixation peut être adapté en fonction des besoins particuliers. 13 of the support beam 4 by means of a fastening means 20 such as a bolt, a nail or a self-tapping screw, whose head is supported on the lower bearing surface 15 of the support lever 6 by means of a distribution plate 19. When the support lever 6 is intended to support a panel 2 in the vicinity of the edge of the slab as shown in Figure 1, the support lever s extends cantilevered beyond the upper flange 13 of the beam 4 on the side where profiled panels 2 are located, but they do not protrude from the edges of the upper flange 13 on the side where there is no sign. On the other hand, when the support lever is intended to rest on an intermediate beam 5, and thus to support panels arranged on the beam 5, this support lever, identified 7 in FIG. 1, which has the same shape as the support lever 6, has a sufficient length to overflow cantilevered on either side of the upper flange 14 of the intermediate beam 5. The profiled panel 2 can be fixed on the supports 6 by means of self-tapping screws 21 which come to be fixed in the upper bearing face 16 of the support lever 6 by passing through the upper central zone 8 of the profiled panel 2. In a second embodiment comprising two variants shown in FIGS. 3 and 4, the connection between the panels of the formwork self-supporting and transverse support beams, is adjustable and not fixed as in the previous case, which allows adjustments on sites on the one hand to change the calpinage, and secondly to compensate for geometric defects that can present the profiled panels. In Figure 3 corresponding to a first variant, there is shown the connection of two profiled panels 2 and 3 of a self-supporting formwork with an intermediate transverse beam 5 disposed between the two profiled panels 2 and 3. The panels 2 and 3 are supported by a support lever 7 extending cantilevered on either side of the upper flange 14 of the beam 5. As in the previous case, the support lever 7 is a hollow section having a tail-shaped section. dovetail whose upper bearing surface 26 has a longitudinal opening 27 intended to cooperate with the rib 11 of the profiled panel 2 and with the longitudinal rib 11 'of the profiled panel 3. As in the previous case, the panel 2 and the panel 3 are fixed on the upper bearing face 26 of the support lever 7 by means of self-tapping screws 34. The support lever 7 rests by its lower bearing face 28 on the upper flange 14 of the transverse beam. intermediate 5. The support lever 7 is fixed on the upper flange 14 of the intermediate transverse beam 5 by two identical Z-clip devices generally marked with 40, arranged at each of the ends 7 A and 7 B of the support lever 7. the corresponding parts of the two connecting means are identified by the same references. Only one of its clip fasteners will be described. The fastening device Z clip consists of a lower plate 29 having a recess 30, fixed under the lower bearing surface 28 of the support lever 7 so as to pinch the upper flange 14 of the beam 5, between the lower plate 29 and the lower bearing face 28 of the support lever 7. The lower plate with crocheting 29 is fixed on the support lever 7 by means of a fixing screw 31 disposed in the part of the lower plate 29 which is in contact with the lower bearing surface 28 of the support lever 7, and a bolt of tightening 32 disposed beyond the recess of the plate 29, so as to clamp the sole 14 of the transverse beam 5 between the plate 29 and the bearing face 28 of the support lever 7. The two bolts 31 and 32 cooperate with the lower wall of the support lever 7 by means of a distribution plate 33. This attachment means of the upper lever 7 on the upper flange 14 of the beam 5 has the advantage of being tightened and loosened on site, this which makes it possible to adjust the position of the support lever 7 along the transverse support beam 5 and thus to adjust the position of the support lever to the geometry of such or such profiled panel. In Figure 4, corresponding to the second variant, there is shown a support lever 6 'on a transverse beam 4 located at the edge of a concrete slab. In this variant, the support lever 6 'supports only one profiled panel, and therefore only protrudes in cantilever on one side of the upper flange 13 of the transverse beam 4. On the side where the support lever 6' supports a profiled panel 2, the support lever 6 'is fixed on the upper flange 13 of the transverse beam 4 by means of a Z-shaped clip generally marked 40 identical to that which has been described above. On the other side, where the support lever 6 'does not have to support profiled panel and therefore does not exceed the edge of the upper flange 13 of the beam 4, the support lever 6' is maintained on the upper flange 13 of the beam 4 by means of a U-shaped clip generally indicated by 41 whose function is to take up the torque tending to raise the end of the support lever 6 'when a large load is supported by the profiled panel 2. This U-shaped clip 41 comprises a lower sole 42 which bears under the sole 13 of the beam 4, and an upper sole 43 which bears against the upper bearing face 16 'of the support lever 6'. and which is fixed on this upper bearing surface by a plurality of self-tapping screws 44. The flanges 42 and 43 of the U-shaped clip are interconnected by a web 45. This U-shaped clip is intended solely to prevent the tilting up the end of the support lever 6 which does not support profiled panel does not prevent to move laterally along the beam 4 the support lever 6 'when the Z-shaped clip 40 is loosened. Thus, it is possible to adjust the position of the support lever 6 'according to the needs and in particular irregularities of panel geometry 2. The section of the support lever can have various shapes as shown in FIG. 5. It can for example, as in FIG. 5A, have a dovetail-shaped section with upper lateral wings 50A and 51A extending outwardly and flanking an opening 52A. They can also be as in FIG. 5B have a dovetail shape with wings 50 B and 51 B surrounding an opening 52 B, the wings 50 B and 51 B extending outwards and the banks 53 B and 54 B of these wings being folded towards the bottom. In addition, and as shown in this particular case, but as is also possible for any profile, the lower bearing surface 55 B of the support lever may comprise stiffening ribs 56 B. In another embodiment, shown in FIG. 5 C, the profile may be trapezoidal in shape and the upper bearing face may comprise flanges 50 C and 51 C extending inwardly of the profile on either side of a longitudinal opening 52 C. As shown in FIG. 5D, the upper flanges 50D and 51D of the profile may have 53D and 54D rims folded downwards, these 53D and 54D edges surrounding the longitudinal opening 52D. As previously indicated. the lower support faces of these profiles may also comprise longitudinal stiffening ribs. Any other form of profile is possible as long as they allow the support of the profiled panels for the soles upper transverse beams, being arranged in line with the longitudinal ribs of the upper surfaces of the profiled panels, so as to maintain in lateral position the profiled panels. Similarly, any mode of attachment of the support levers on the upper flanges of the transverse beams can be adjusted at will is possible. In particular, the Z-shaped clip can be replaced by any clamping plate fulfilling the same function and the number of clamping or fixing bolts can be adapted according to the particular needs.

Claims

Revendications claims
1. Liaison d'un coffrage autoportant pour la fabrication d'un plancher composite béton-acier du type comprenant au moins un panneau profilé (2, 3) comportant une plage centrale supérieure (8, 8') munie de nervures longitudinales (11 , 11'), s'appuyant en au moins une de ses extrémités sur la semelle supérieure (13, 14) d'une poutre transversale (4, 5) par l'intermédiaire d'un levier support (6, 6', 7) qui fait saillie transversalement à la poutre transversale à la manière d'un bras en porte-à-faux, caractérisé en ce que :1. Connection of a self-supporting formwork for the manufacture of a concrete-steel composite floor of the type comprising at least one profiled panel (2, 3) comprising an upper central zone (8, 8 ') provided with longitudinal ribs (11, 11 '), resting on at least one of its ends on the upper flange (13, 14) of a transverse beam (4, 5) via a support lever (6, 6', 7) which protrudes transversely to the transverse beam in the manner of a cantilever arm, characterized in that:
- ledit levier support (6, 6', 7) est un profilé comportant une face d'appui supérieure (16, 16', 26) comportant une ouverture longitudinale, (17, 27) et une face d'appui inférieure (18, 28),said support lever (6, 6 ', 7) is a profile having an upper bearing face (16, 16', 26) having a longitudinal opening, (17, 27) and a lower bearing face (18, 28)
- ledit levier support (6, 7) est disposé sur l'aile supérieure (13, 14) de la poutre transversale (4, 5), au droit d'une nervure longitudinale (11 , 11') de la plage centrale supérieure (8, 8') de l'au moins un panneau profilé (2, 3), de telle sorte que ladite nervure longitudinale (11 , 11') coopère avec les bords de ladite ouverture longitudinale (17, 27),said support lever (6, 7) is arranged on the upper flange (13, 14) of the transverse beam (4, 5), in line with a longitudinal rib (11, 11 ') of the upper central region ( 8, 8 ') of the at least one profiled panel (2, 3), such that said longitudinal rib (11, 11') cooperates with the edges of said longitudinal opening (17, 27),
- ledit levier support (6, 6', 7) est maintenu en position sur la poutre transversale (4, 5) par au moins un moyen de fixation.- said support lever (6, 6 ', 7) is held in position on the transverse beam (4, 5) by at least one fastening means.
2. Liaison d'un coffrage autoportant selon la revendication 1 , caractérisé en ce que le levier support (6, 6', 7) a une section en queue d'aronde, la face d'appui supérieure (16, 16', 26) comportant deux semelles (50 A, 51 A, 50 B, 51 B) s'étendant latéralement vers l'extérieur du levier support. 2. Connection of a self-supporting formwork according to claim 1, characterized in that the support lever (6, 6 ', 7) has a dovetail section, the upper bearing face (16, 16', 26). ) having two flanges (50 A, 51 A, 50 B, 51 B) extending laterally outwardly of the support lever.
3. Liaison d'un coffrage autoportant selon la revendication 1 , caractérisé en ce que le levier support a une section en forme de trapèze, la face d'appui supérieure comportant deux semelles (50C, 51 C, 50 D, 51 D) s'étendant l'une vers l'autre, de part et d'autre de l'ouverture longitudinale (52 C, 52 D) de la face d'appui supérieure. 3. Connection of a self-supporting formwork according to claim 1, characterized in that the support lever has a trapezoid-shaped section, the upper bearing face having two flanges (50C, 51C, 50D, 51D). extending towards each other, on either side of the longitudinal opening (52 C, 52 D) of the upper bearing face.
4. Liaison d'un coffrage autoportant selon la revendication 2 ou la revendication 3, caractérisée en ce que les rives (53 B, 54 B, 53 D, 54 D) des semelles supérieures (50 B, 51 B, 50 D, 51 D) sont rabattues vers le bas. 5. Liaison d'un coffrage autoportant selon l'une quelconque des revendications 2 à 4, caractérisé en ce que la face d'appui inférieure (55 B)4. Connection of a self-supporting formwork according to claim 2 or claim 3, characterized in that the banks (53 B, 54 B, 53 D, 54 D) of the upper flanges (50 B, 51 B, 50 D, 51 D) are folded down. 5. Connection of a self-supporting formwork according to any one of claims 2 to 4, characterized in that the lower bearing face (55 B)
5 comporte des plis raidisseurs longitudinaux (56 B). 6. Liaison d'un coffrage autoportant selon l'une quelconque des revendications 1 à 5 caractérisé en ce que l'au moins un moyen de fixation du levier support (6) sur la poutre transversale comprend au moins une plaquette de répartition (19) et au moins un moyen de solidarisation (20) du type0 boulon, vis auto-taraudeuse ou clou de scellement, coopérant avec la poutre transversale. 7. Liaison d'un coffrage autoportant selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comprend un moyen (40, 41) de fixation du levier support sur la poutre transversale (40) disposé à chacune5 des extrémités du levier support (6, 5 comprises longitudinal stiffening folds (56 B). 6. Connection of a self-supporting formwork according to any one of claims 1 to 5 characterized in that the at least one fixing means of the support lever (6) on the transverse beam comprises at least one distribution plate (19) and at least one fastening means (20) of the bolt type, self-tapping screw or nail, cooperating with the transverse beam. 7. Connection of a self-supporting formwork according to any one of claims 1 to 5, characterized in that it comprises means (40, 41) for fixing the support lever on the transverse beam (40) disposed at each end 5 of the support lever (6,
6', 6 '
7), au moins un moyen de fixation comprenant une plaque (29) comportant un décrochement (30) disposée sous une extrémité du levier support de façon à pincer l'aile de la poutre transversale (5) entre ladite plaque (29) comprenant un décrochement et la face d'appui inférieure (28) du levier support (7), et un moyen de fixation et de o serrage. 7), at least one fastening means comprising a plate (29) having a recess (30) disposed under one end of the support lever so as to grip the flange of the transverse beam (5) between said plate (29) comprising a recess and the lower bearing face (28) of the support lever (7), and a fixing means and o clamping.
8. Liaison d'un coffrage autoportant selon la revendication 7 caractérisé en ce que le moyen de fixation et de serrage est constitué d'au moins un boulon de fixation (31 ) et un boulon de serrage (32) coopérant avec la plaque (29) comprenant un décrochement, et avec la face d'appui inférieure (28) du5 levier support (7) par l'intermédiaire d'une plaquette de répartition (33). 8. Connection of a self-supporting formwork according to claim 7 characterized in that the fastening and clamping means consists of at least one fastening bolt (31) and a clamping bolt (32) cooperating with the plate (29). ) comprising a recess, and with the lower bearing face (28) of the support lever (7) via a distribution plate (33).
9. Liaison d'un coffrage autoportant selon la revendication 7 caractérisé en ce que un moyen de fixation du levier support (6') comprend un clip en U (41 ) fixé sur la face d'appui supérieure (16') du levier support (6') et coopérant avec la face inférieure d'une aile (13) de la poutre transversale (4). 09. Connection of a self-supporting formwork according to claim 7 characterized in that a fixing means of the support lever (6 ') comprises a U-shaped clip (41) fixed on the upper bearing face (16') of the support lever (6 ') and cooperating with the underside of a wing (13) of the transverse beam (4). 0
10. Liaison d'un coffrage autoportant selon l'une quelconque des revendications 1 à 9 caractérisé en ce que le panneau profilé (2, 3) est fixé sur au moins un levier support (6, 6', 7) par l'intermédiaire de vis (21 , 34).10. Connection of a freestanding formwork according to any one of Claims 1 to 9, characterized in that the profiled panel (2, 3) is fixed on at least one support lever (6, 6 ', 7) by means of screws (21, 34).
11. Dispositif de fixation d'un coffrage autoportant sur une poutre transversale caractérisé en ce qu'il comprend un levier support (6, 6' 7) constitué d'un profilé creux comportant une face d'appui supérieure (16, 16', 26) présentant une ouverture longitudinale (17, 27), et un moyen de fixation du levier support sur une poutre disposé sur chacune des extrémités du profilé creux, au moins un desdits moyens de fixation du levier support sur une poutre étant un clip en Z (40) constitué d'une plaque (29) comportant un décrochement (30), d'une plaque de répartition (33) et d'un moyen de fixation et de serrage.11. Device for fixing a freestanding formwork on a transverse beam, characterized in that it comprises a support lever (6, 6 '7) consisting of a hollow section comprising an upper bearing face (16, 16', 26) having a longitudinal opening (17, 27), and means for fixing the support lever on a beam disposed on each of the ends of the hollow profile, at least one of said means for fixing the support lever on a beam being a Z-shaped clip. (40) consisting of a plate (29) having a recess (30), a distribution plate (33) and a fixing and clamping means.
12. Dispositif selon la revendication 11, caractérisé en ce que le moyen de fixation et de serrage est constitué d'au moins un boulon de fixation (31) et au moins un boulon de serrage (32). 12. Device according to claim 11, characterized in that the fixing and clamping means consists of at least one fixing bolt (31) and at least one clamping bolt (32).
13. Dispositif selon la revendication 11, caractérisé en ce qu'un des moyens de fixation du levier support (6') sur une poutre (4) est constitué d'un clip en U (41) fixé sur la face supérieure (16) du levier support (6) par l'intermédiaire d'au moins une vis ou un boulon (44). 13. Device according to claim 11, characterized in that one of the fixing means of the support lever (6 ') on a beam (4) consists of a U-shaped clip (41) fixed on the upper face (16). of the support lever (6) via at least one screw or bolt (44).
PCT/FR2004/002586 2003-10-14 2004-10-12 Connector for a self-supporting formwork for the production of a concrete and steel composite floor WO2005038158A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
SI200430853T SI1689948T1 (en) 2003-10-14 2004-10-12 Connector for a self-supporting formwork for the production of a concrete and steel composite floor
DE602004016881T DE602004016881D1 (en) 2003-10-14 2004-10-12 CONNECTOR FOR A SELF-SUPPORTING FORMWORK FOR THE PRODUCTION OF A CONCRETE AND STEEL COMPOSITE FLOOR
PL04791515T PL1689948T3 (en) 2003-10-14 2004-10-12 Connector for a self-supporting formwork for the production of a concrete and steel composite floor
DK04791515T DK1689948T3 (en) 2003-10-14 2004-10-12 Connection to a self-supporting formwork to produce a composite concrete steel floor
EP04791515A EP1689948B1 (en) 2003-10-14 2004-10-12 Connector for a self-supporting formwork for the production of a concrete and steel composite floor
HR20080672T HRP20080672T3 (en) 2003-10-14 2008-12-22 Connector for a self-supporting formwork for the production of a concrete and steel composite floor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0312001A FR2860815B1 (en) 2003-10-14 2003-10-14 CONNECTION OF A SELF-SUPPORTING FORMWORK FOR THE MANUFACTURE OF A CONCRETE COMPOSITE FLOOR
FR0312001 2003-10-14

Publications (1)

Publication Number Publication Date
WO2005038158A1 true WO2005038158A1 (en) 2005-04-28

Family

ID=34355467

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2004/002586 WO2005038158A1 (en) 2003-10-14 2004-10-12 Connector for a self-supporting formwork for the production of a concrete and steel composite floor

Country Status (11)

Country Link
EP (1) EP1689948B1 (en)
AT (1) ATE409787T1 (en)
DE (1) DE602004016881D1 (en)
DK (1) DK1689948T3 (en)
ES (1) ES2315718T3 (en)
FR (1) FR2860815B1 (en)
HR (1) HRP20080672T3 (en)
PL (1) PL1689948T3 (en)
PT (1) PT1689948E (en)
SI (1) SI1689948T1 (en)
WO (1) WO2005038158A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111608308A (en) * 2020-05-19 2020-09-01 黄通 Distributed three-dimensional factory floor and preparation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872984A (en) * 1928-03-21 1932-08-23 Mary Haines Marks Building construction
US3320704A (en) * 1964-05-21 1967-05-23 Nat Rolling Mills Co Roof deck and method of construction
US4741134A (en) * 1984-07-02 1988-05-03 Consolidated Systems, Inc. Composite metal/concrete bar joist floor and method
DE4215686C1 (en) * 1992-05-14 1993-11-11 Hoesch Siegerlandwerke Gmbh Connection for steel trapezoidal profiles with under construction - is used for roof or ceiling plates formed as concrete-steel union constructions
DE4442211A1 (en) * 1994-11-29 1996-06-05 Hoesch Siegerlandwerke Gmbh Roofing sheets with corrugations of trapezium-shaped cross=section

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1872984A (en) * 1928-03-21 1932-08-23 Mary Haines Marks Building construction
US3320704A (en) * 1964-05-21 1967-05-23 Nat Rolling Mills Co Roof deck and method of construction
US4741134A (en) * 1984-07-02 1988-05-03 Consolidated Systems, Inc. Composite metal/concrete bar joist floor and method
DE4215686C1 (en) * 1992-05-14 1993-11-11 Hoesch Siegerlandwerke Gmbh Connection for steel trapezoidal profiles with under construction - is used for roof or ceiling plates formed as concrete-steel union constructions
DE4442211A1 (en) * 1994-11-29 1996-06-05 Hoesch Siegerlandwerke Gmbh Roofing sheets with corrugations of trapezium-shaped cross=section

Also Published As

Publication number Publication date
PT1689948E (en) 2008-12-31
FR2860815A1 (en) 2005-04-15
DE602004016881D1 (en) 2008-11-13
PL1689948T3 (en) 2009-03-31
ES2315718T3 (en) 2009-04-01
HRP20080672T3 (en) 2009-02-28
DK1689948T3 (en) 2009-02-02
EP1689948A1 (en) 2006-08-16
EP1689948B1 (en) 2008-10-01
SI1689948T1 (en) 2008-12-31
ATE409787T1 (en) 2008-10-15
FR2860815B1 (en) 2006-02-24

Similar Documents

Publication Publication Date Title
EP2022150B1 (en) Separation and/or reinforcement device for a wire cable duct
EP3073028B1 (en) Beam with hinged connection ends
EA033943B1 (en) Expansion joint
EP0170597B1 (en) Cornice for bridges
FR2475099A1 (en) MODULAR FORMWORK WITH FALLING HEADS FOR CONCRETE FLOORS
FR2644193A1 (en) METHOD AND APPARATUS FOR PLACING A NEW CEILING OVERLAYING AN EXISTING CEILING
EP1689948B1 (en) Connector for a self-supporting formwork for the production of a concrete and steel composite floor
FR2606123A1 (en) SMOOTHED SLIT FOR SUPPORTING LOADS, ESPECIALLY FOR STORAGE LOCKERS
BE1017376A5 (en) METAL JOINT FOR EXPANSION BETWEEN CONCRETE SLABS.
FR2669957A1 (en) Method for the positioning of rectangular tiles on a facade, and rail profile for carrying out this method
EP2607564B1 (en) Rail for false-wall frame, in particular of a suspended ceiling
EP0767282A1 (en) Collaborating metallic girder
BE1003846A3 (en) Adjustable support device for construction components and use of same
FR2656020A1 (en) ASSEMBLY BY EMBOITEMENT OF TWO Z-RIGHT SECTION PROFILES, ESPECIALLY FOR MAKING A FAILURE, A SMOOTH OR A FLOOR SUPPORT.
FR2790024A1 (en) Edge supporting strips for vertical wall covering slabs have slightly convex outer profile and soft foam pads pressing against edges of tiles
FR2538867A1 (en) Device for fixing cladding panels, especially for panels of reconstituted stone.
FR2749871A1 (en) Flooring panel for scaffolding
FR2637349A1 (en) Method for manufacturing a lightweight structure for supporting long straight elements as well as means for the purpose of implementing it and structure thus obtained
FR2533959A1 (en) Slip-on cladding device.
NL1005692C2 (en) Fully adjustable bracket for supporting facing units on wall structure
FR2806429A1 (en) METHOD FOR REINFORCING A CARRIER CABLE WITH A SUSPENDED CIVIL ENGINEERING STRUCTURE AND CIVIL ENGINEERING STRUCTURE COMPRISING A REINFORCED CARRIER CABLE
EP1749137A1 (en) Connecting device for a concrete/steel composite structure for use in floors or roofs
FR3109597A1 (en) safety slide device for building personnel, resting on a formwork beam type "Doka" ®
FR2752430A1 (en) Movable coffering for concrete bridge
EP2904171B1 (en) Thin hanger for suspending a construction element to a supporting structure

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2004791515

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 2004791515

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 2004791515

Country of ref document: EP