EP1943395B1 - Insulating form for concrete walls - Google Patents

Insulating form for concrete walls Download PDF

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Publication number
EP1943395B1
EP1943395B1 EP20060820200 EP06820200A EP1943395B1 EP 1943395 B1 EP1943395 B1 EP 1943395B1 EP 20060820200 EP20060820200 EP 20060820200 EP 06820200 A EP06820200 A EP 06820200A EP 1943395 B1 EP1943395 B1 EP 1943395B1
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EP
European Patent Office
Prior art keywords
formwork
edge
panels
insulating
channel
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EP20060820200
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German (de)
French (fr)
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EP1943395A1 (en
Inventor
Gilles Ghilardi
Christophe Dufosse
Jean-Pierre Fadet
Olivier Leblanc
Frédéric-Jérôme Cardona
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Rockwool International AS
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Rockwool International AS
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Priority to EP05292172A priority Critical patent/EP1775397A1/en
Application filed by Rockwool International AS filed Critical Rockwool International AS
Priority to PCT/FR2006/002299 priority patent/WO2007045744A1/en
Priority to EP20060820200 priority patent/EP1943395B1/en
Publication of EP1943395A1 publication Critical patent/EP1943395A1/en
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Publication of EP1943395B1 publication Critical patent/EP1943395B1/en
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    • 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

Description

  • La présente invention concerne un coffrage isolant pour la construction de parois en béton, telles qu'un plancher, une toiture ou un mur de bâtiment.The present invention relates to an insulating form for the construction of concrete walls, such as a floor, a roof or a building wall.
  • Ces éléments de bâtiments peuvent notamment être utilisés pour la construction d'habitations, d'hôtels, d'hôpitaux, de bâtiments industriels ou de parkings, sans pour autant y être limités.These building elements can be used in particular for the construction of dwellings, hotels, hospitals, industrial buildings or car parks, without being limited thereto.
  • Il est connu, notamment par EP 0 427 596 , de réaliser un coffrage pour plancher en béton comprenant une multiplicité de panneaux de laine de roche mutuellement juxtaposés munis d'éléments d'ancrage faisant saillie sur leur face supérieure, et reposant par leur face inférieure sur une table de coffrage constituée de panneaux de bois. Une dalle de béton est coulée sur les panneaux isolants en noyant les éléments d'ancrage pour solidariser les panneaux isolants au béton après durcissement. La table de coffrage est ensuite retirée.He is known, particularly by EP 0 427 596 , to realize a concrete floor formwork comprising a multiplicity of mutually juxtaposed rock wool panels provided with anchoring elements projecting from their upper face, and resting by their underside on a formwork table made of wood panels . A concrete slab is poured on the insulating panels by embedding the anchoring elements to secure the insulating panels to concrete after hardening. The formwork table is then removed.
  • La fabrication, le transport, le montage, le démontage et le nettoyage de la table de coffrage sont des opérations coûteuses. De plus la face inférieure des panneaux de laine de roche, apparente sur le plancher fini, est peu esthétique.The manufacture, transport, assembly, disassembly and cleaning of the formwork table are expensive operations. In addition, the underside of rockwool panels, which is visible on the finished floor, is not very aesthetic.
  • EP 1 215 346 décrit un plancher comprenant notamment une succession de profilés métalliques emboîtés les uns dans les autres et garnis chacun de blocs d'isolant, l'isolation thermique étant complétée par une lame d'air entre le fond du profilé et le bloc d'isolant. Un treillis métallique est fixé sur les profilés, et une dalle de béton est coulée sur l'ensemble. L'isolant est séparé du béton par la lame d'air et c'est le profilé métallique qui est ancré au béton, créant ainsi des ponts thermiques néfastes à l'isolation thermique du plancher. EP 1 215 346 describes a floor including in particular a succession of metal profiles nested in each other and each lined with insulation blocks, the thermal insulation being completed by an air gap between the bottom of the profile and the insulation block. A wire mesh is fixed on the profiles, and a concrete slab is poured on the whole. The insulation is separated from the concrete by the air gap and it is the metal profile that is anchored to the concrete, creating thermal bridges harmful to the thermal insulation of the floor.
  • Le plancher décrit dans EP 1 215 346 peut constituer en particulier un plancher collaborant, c'est-à-dire un plancher dans lequel le coffrage reste à demeure et lui apporte, une fois construit, les propriétés mécaniques en traction et flexion de ses composants en métal, tels que de l'acier galvanisé ou non.The floor described in EP 1 215 346 may in particular constitute a collaborating floor, that is to say a floor in which the formwork remains permanently and brings him, once built, the mechanical properties in traction and bending of its metal components, such as galvanized steel or not.
  • Le but de la présente invention est donc de mettre à disposition un profilé, un panneau isolant et un coffrage intégrant ceux-ci, remédiant aux inconvénients des systèmes de l'art antérieur et permettant en particulier de construire des parois en béton sans créer de ponts thermiques.The purpose of the present invention is therefore to provide a profile, an insulating panel and a formwork incorporating them, overcoming the drawbacks of the systems of the prior art and allowing in particular to build concrete walls without creating bridges thermal.
  • À cet effet, un premier objet de la présente invention est constitué par un coffrage pour paroi en béton comprenant une multiplicité de panneaux de matière isolante mutuellement juxtaposés munis d'éléments d'ancrage faisant saillie sur une première face principale, et un support de coffrage rigide recouvrant la face principale opposée des panneaux, formé par des profilés métalliques définissant chacun le fond et les deux côtés d'un canal qui est rempli par au moins un panneau isolant, l'épaisseur de ce dernier étant supérieure à la hauteur du profilé, les profilés étant mutuellement positionnés côte à côte par la coopération de rebords formés sur les deux côtés du canal et logés dans des évidements en forme d'encoches d'une largeur appropriée (dans la direction de l'épaisseur des panneaux) ménagés dans un flanc des panneaux isolants.For this purpose, a first object of the present invention is constituted by a formwork for a concrete wall comprising a plurality of juxtaposed insulating material panels provided with anchoring elements projecting from a first main face, and a formwork support rigid covering the opposite main face of the panels, formed by metal profiles each defining the bottom and the two sides of a channel which is filled by at least one insulating panel, the thickness of the latter being greater than the height of the profile, the profiles being mutually positioned side by side by the cooperation of flanges formed on both sides of the channel and housed in slot-shaped recesses of appropriate width (in the direction of the thickness of the panels) formed in a flank insulating panels.
  • Le coffrage selon l'invention peut également comprendre différentes caractéristiques, prises seules ou en combinaison :
    • Lesdits panneaux de matière isolante sont en laine de roche.
    • Lesdits panneaux de laine de roche ont une masse volumique plus élevée dans une zone superficielle adjacente à leur première face principale que sur le reste de leur épaisseur.
    • Le fond du canal est muni de nervures longitudinales raidisseuses et/ou de perforations.
    • Les profilés sont réalisés en acier galvanisé.
    • Chaque profilé comprend :
      • une plage centrale sensiblement plane formant le fond du canal,
      • deux ailes s'étendant sensiblement perpendiculairement au plan de la plage centrale et formant les côtés du canal,
      • un premier rebord faisant suite à une première aile et tourné en direction de la seconde aile, et
      • un second rebord faisant suite à la seconde aile et tourné à l'opposé de la première aile,
      • la seconde aile et le second rebord d'un profilé étant en appui respectivement sur la première aile et sur le premier rebord du profilé voisin et les profilés comportant des moyens de positionnement mutuel s'opposant à un mouvement relatif perpendiculairement à la plage centrale et/ou à un mouvement relatif perpendiculairement aux ailes.
    • Les premier et second rebords s'étendent sensiblement parallèlement au plan de la plage centrale.
    • Les moyens de positionnement mutuel comprennent un retour faisant suite au premier rebord, tourné à l'opposé de la seconde aile et formant avec le premier rebord un logement dans lequel s'insère le second rebord du profilé voisin.
    • Les moyens de positionnement mutuel comprennent des profils s'interpénétrant, notamment en v, formés sur le premier rebord d'un profilé et sur le second rebord du profilé voisin.
    • Pour réaliser un plancher en béton reposant sur des poutres horizontales parallèles, les deux extrémités de chaque profilé s'appuient directement ou indirectement sur deux poutres voisines respectivement.
    The formwork according to the invention may also comprise different characteristics, taken alone or in combination:
    • Said panels of insulating material are made of rockwool.
    • The said rock wool panels have a higher density in a surface area adjacent to their first main face than on the rest of their thickness.
    • The bottom of the channel is provided with stiffening longitudinal ribs and / or perforations.
    • The profiles are made of galvanized steel.
    • Each profile includes:
      • a substantially flat central area forming the bottom of the channel,
      • two wings extending substantially perpendicular to the plane of the central beach and forming the sides of the channel,
      • a first rim following a first wing and turned towards the second wing, and
      • a second ledge following the second wing and turned away from the first wing,
      • the second flange and the second flange of a section being respectively bearing on the first flange and on the first flange of the adjacent section and the sections comprising mutual positioning means opposing a relative movement perpendicular to the central range and / or relative motion perpendicular to the wings.
    • The first and second flanges extend substantially parallel to the plane of the central area.
    • The mutual positioning means comprise a return following the first flange, turned away from the second flange and forming with the first flange a housing in which the second flange of the adjacent section is inserted.
    • The mutual positioning means comprise interpenetrating profiles, in particular V, formed on the first edge of a profile and on the second edge of the neighboring section.
    • To achieve a concrete floor resting on parallel horizontal beams, the two ends of each section bear directly or indirectly on two neighboring beams respectively.
  • Un second objet de l'invention est constitué par un module pour la réalisation d'un coffrage tel que défini plus haut, ledit module présentant les caractéristiques de la revendication 11.A second object of the invention is constituted by a module for producing a formwork as defined above, said module having the features of claim 11.
  • Un troisième objet de l'invention est constitué par une paroi de bâtiment comprenant un coffrage tel que défini plus haut et une dalle de béton coulée sur la première face principale des panneaux isolants et noyant lesdits éléments d'ancrage.A third object of the invention is constituted by a building wall comprising a formwork as defined above and a cast concrete slab on the first face. main insulating panels and embedding said anchoring elements.
  • Cette paroi en béton pourra notamment être utilisée pour la réalisation d'un plancher, d'une toiture ou d'un mur extérieur ou intéxieur.This concrete wall may in particular be used for the realization of a floor, a roof or an exterior wall or interior.
  • La présente description divulgue aussi un profilé métallique et un panneau isolant propres à faire partie du coffrage susmentionné.The present disclosure also discloses a metal profile and an insulating panel suitable for forming part of the formwork mentioned above.
  • Un tel panneau isolant présente dans un de ses flancs un évidement longitudinal en forme d'encoche, le flanc opposé étant sensiblement plat ou présentant lui aussi un évidement longitudinal en forme d'encoche.Such an insulating panel has in one of its flanks a longitudinal recess in the form of a notch, the opposite flank being substantially flat or also having a longitudinal slot-shaped recess.
  • D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels :
    • la figure 1 est une vue en coupe d'un profilé selon l'invention,
    • la figure 2 est une vue en perspective d'un plancher en béton selon l'invention, en cours de réalisation,
    • la figure 3 est une vue schématique en coupe d'un plancher en béton selon l'invention.
    Other features and advantages of the invention will appear on reading the description which follows, given solely by way of example and with reference to the appended drawings in which:
    • the figure 1 is a sectional view of a profile according to the invention,
    • the figure 2 is a perspective view of a concrete floor according to the invention, in progress,
    • the figure 3 is a schematic sectional view of a concrete floor according to the invention.
  • Comme on peut le voir sur la figure 1, le profilé 1 selon l'invention comprend une plage centrale 2 sensiblement plane et deux ailes 3 et 4 s'étendant sensiblement perpendiculairement au plan de la plage centrale 2, celle-ci et les ailes 3 et 4 formant respectivement le fond et les côtés d'un canal. La plage centrale 2 est par exemple munie de nervures longitudinales 5, 5' et 5'' ayant des effets raidisseur et esthétique.As can be seen on the figure 1 , the section 1 according to the invention comprises a substantially planar central zone 2 and two wings 3 and 4 extending substantially perpendicularly to the plane of the central zone 2, the latter and the wings 3 and 4 respectively forming the bottom and the sides of a channel. The central area 2 is for example provided with longitudinal ribs 5, 5 'and 5''having stiffening and aesthetic effects.
  • Dans un mode de réalisation non représenté, la plage centrale 2 est munie de perforations destinées à favoriser l'action d'absorption acoustique de l'isolant. L'épaisseur du profilé 1 est choisie de manière à préserver sa rigidité malgré la présence des perforations, celles-ci étant en outre de préférence disposées sur une partie seulement de la plage centrale 2, notamment sur certaines des bandes longitudinales définies par les nervures 5, 5' et 5''.In an embodiment not shown, the central area 2 is provided with perforations intended to promote the acoustic absorption action of the insulation. The thickness of the section 1 is chosen so as to preserve its rigidity despite the presence of the perforations, these being moreover preferably disposed on only part of the central zone 2, in particular on some of the longitudinal bands defined by the ribs 5. , 5 'and 5''.
  • Une première aile 3 du profilé 1 présente une hauteur inférieure à la largeur du profilé 1 et se raccorde à son extrémité à un premier rebord 6 s'étendant sensiblement selon un plan parallèle au plan de la plage centrale 2, et tourné en direction de la seconde aile 4. Un coude relie le premier rebord 6 à un retour 7 tourné à l'opposé de la seconde aile 4, plus éloigné du plan de la plage centrale 2 que le premier rebord 6. Le retour 7 est représenté comme étant parallèle au rebord 6, mais, selon une variante avantageuse, il forme avec ce dernier un angle aigu d'environ 15° par exemple.A first flange 3 of the profile 1 has a height less than the width of the profile 1 and is connected at its end to a first rim 6 extending substantially in a plane parallel to the plane of the central strip 2, and turned towards the second wing 4. An elbow connects the first flange 6 to a return 7 turned away from the second flange 4, further from the plane of the central area 2 than the first flange 6. The return 7 is shown as being parallel to the flange 6, but, according to an advantageous variant, it forms with the latter an acute angle of about 15 ° for example.
  • Sensiblement à mi-largeur, et entre l'extrémité du retour 7 et l'aile 3 dans la direction de la largeur de la plage centrale 2, le rebord 6 est plié selon un profil en V 8 dont la pointe est orientée vers le bas.At substantially mid-width, and between the end of the return 7 and the flange 3 in the width direction of the central area 2, the flange 6 is folded according to a V-shaped profile 8 whose tip is directed downwards. .
  • À l'autre extrémité de la plage centrale 2, la seconde âme 4 se raccorde à son extrémité à un second rebord 9 s'étendant sensiblement selon un plan parallèle au plan de la plage centrale 2, et tourné à l'opposé de la première aile 3. Le rebord 9 comporte un profil en V 10 identique à celui du premier rebord.At the other end of the central zone 2, the second core 4 is connected at its end to a second flange 9 extending substantially in a plane parallel to the plane of the central zone 2, and turned away from the first one. wing 3. The flange 9 has a V-shaped profile 10 identical to that of the first flange.
  • Le profilé 1 est métallique et de préférence réalisé en acier galvanisé, ce qui permet d'apporter une bonne résistance à la corrosion à l'ensemble. En outre, la face extérieure qui restera apparente présente ainsi un aspect esthétique, ne nécessitant pas obligatoirement de décoration supplémentaire, en fonction de l'usage final de la paroi.The profile 1 is metallic and preferably made of galvanized steel, which makes it possible to provide good corrosion resistance to the assembly. In addition, the outer face which will remain apparent thus has an aesthetic appearance, not necessarily requiring additional decoration, depending on the final use of the wall.
  • On peut voir sur la figure 2 la façon d'utiliser les profilés selon l'invention pour réaliser un coffrage selon l'invention, puis une paroi en béton selon l'invention, comme un plancher tel que représenté en figure 3.We can see on the figure 2 the way of using the profiles according to the invention to produce a formwork according to the invention, then a concrete wall according to the invention, such as a floor as shown in FIG. figure 3 .
  • On voit sur la figure 2 un premier profilé 1 identique à celui décrit en figure 1, ainsi qu'un profilé 20 identique au profilé 1 et comportant notamment une seconde aile 24 et un second rebord 29 identiques à l'aile 4 et au rebord 9.We see on the figure 2 a first profile 1 identical to that described in figure 1 , and a profile 20 identical to the profile 1 and comprising in particular a second flange 24 and a second flange 29 identical to the flange 4 and the flange 9.
  • On introduit tout d'abord un premier panneau de matière isolante I1 à l'intérieur du profilé 1, la hauteur (l'épaisseur) du panneau I1 étant supérieure à la hauteur du premier profilé 1. En outre, un des flancs du panneau I1 a été préalablement entaillé horizontalement à hauteur du premier rebord 6. Le panneau I1 est placé dans le profilé 1 de sorte que le premier rebord 6 du profilé 1 soit entièrement inséré dans l'entaille du panneau I1. Le flanc opposé peut être sensiblement plan, ou présenter une entaille semblable de manière à permettre l'insertion du panneau dans le profilé indifféremment dans un sens ou dans l'autre. Plusieurs panneaux tels que I1 peuvent être alignés de manière jointive sur la longueur du profilé 1, en fonction des longueurs respectives du profilé et des panneaux.Firstly, a first insulating material panel I1 is introduced inside the section 1, the height (the thickness) of the panel I1 being greater than the height of the first profile 1. In addition, one of the sides of the panel I1 has been cut horizontally at the height of the first 6. The panel I1 is placed in the profile 1 so that the first edge 6 of the profile 1 is fully inserted into the notch of the panel I1. The opposite flank may be substantially flat, or have a similar notch so as to allow the insertion of the panel in the section indifferently in one direction or the other. Several panels such as I1 may be aligned in a contiguous manner along the length of the profile 1, depending on the respective lengths of the profile and the panels.
  • On procède de façon identique avec le second profilé 20 que l'on garnit d'un ou plusieurs panneaux de matière isolante I2. On répète l'opération avec autant de profilés identiques aux profilés 1 et 20 que nécessaire.The same procedure is carried out with the second section 20 that is lined with one or more panels of insulating material I2. The operation is repeated with as many profiles as the profiles 1 and 20 as necessary.
  • Les panneaux I1 et I2 peuvent être tous panneaux isolants rigides, notamment des panneaux en laine minérale telle que laine de roche ou laine de verre, ou des panneaux en matière plastique cellulaire telle que polystyrène ou polyuréthanne. De façon plus particulière, ils peuvent être en laine de roche dont la masse volumique n'est pas uniforme dans l'épaisseur des panneaux et est plus élevée dans une zone adjacente à leur face supérieure, tournée à l'opposé des plages centrales 2, 22, que sur le reste de leur épaisseur.The panels I1 and I2 can be any rigid insulating panels, including mineral wool panels such as rock wool or glass wool, or cellular plastic panels such as polystyrene or polyurethane. More particularly, they may be stone wool whose density is not uniform in the thickness of the panels and is higher in an area adjacent to their upper face, facing away from the central areas 2, 22, only on the rest of their thickness.
  • Les panneaux I1 et I2 comportent sur leur face supérieure des éléments d'ancrage E1, E1', E2, E2' intégrés. Ces éléments d'ancrage sont, par exemple, constitués de ressorts métalliques en spirale. La quantité des éléments d'ancrage dépend de différents paramètres dont la largeur des panneaux I1 et I2. The panels I1 and I2 have on their upper face integrated anchoring elements E1, E1 ' , E2, E2'. These anchoring elements are, for example, made of spiral metal springs. The quantity of the anchoring elements depends on various parameters including the width of the panels I1 and I2.
  • On procède ensuite à l'assemblage des profilés 1 et 20 comme suit. Le second rebord 29 du second profilé 20 est inséré obliquement dans le dièdre aigu formé par le premier rebord 6 et le retour 7 du premier profilé 1, puis on fait pivoter le profilé 20 de manière à amener le rebord 29 en appui sur le rebord 6. Les ailes et les rebords sont dimensionnés de telle sorte que les profils en V 8 et 30 des rebords 6 et 29 des profilés 1 et 20 s'imbriquent l'un dans l'autre tandis que les ailes 3 et 24 sont mutuellement accolées et que les plages centrales 2 et 22 s'étendent sensiblement dans le même plan. Les profils en V 8 et 30 coopèrent alors pour bloquer tout mouvement de translation relatif des profilés 1, 20 dans un plan parallèle à celui des plages centrales 2 et 22, tandis que le rebord 29 est immobilisé perpendiculairement à ce plan dans le logement formé par le rebord 6 et le retour 7.The profiles 1 and 20 are then assembled as follows. The second flange 29 of the second profile 20 is inserted obliquely into the acute dihedral formed by the first flange 6 and the return 7 of the first section 1, then the profile 20 is rotated so as to bring the flange 29 resting on the flange 6 The wings and flanges are dimensioned so that the V-shaped profiles 8 and 30 of the flanges 6 and 29 of the profiles 1 and 20 fit into one another while the flanges 3 and 24 are mutually contiguous and that the central beaches 2 and 22 extend substantially in the same plane. The V-shaped profiles 8 and 30 then cooperate to block any relative translational movement of the sections 1, 20 in a plane parallel to that of the central areas 2 and 22, while the flange 29 is immobilized perpendicularly to this plane in the housing formed by flange 6 and return 7.
  • On voit que les panneaux de laine de roche I1 et I2 forment alors une couche continue au-dessus des profilés 1 et 20, supprimant ainsi toute possibilité de création de ponts thermiques.It is seen that the rock wool panels I1 and I2 then form a continuous layer above the sections 1 and 20, thus eliminating any possibility of creating thermal bridges.
  • Pour terminer la réalisation de la paroi en béton, on place ensuite un treillis métallique T sur des cales d'épaisseur non représentées, avantageusement en matière plastique, qui peuvent être solidaires des éléments d'ancrage E1, E1', E2, E2', comme décrit dans FR 2 624 154 A , ou indépendantes de ceux-ci, ces cales d'épaisseur reposant sur les panneaux I1 et I2 et maintenant le treillis écarté des éléments d'ancrage et à une distance d'environ 3 cm de la surface des panneaux. Ces cales sont de préférence de grande longueur pour répartir le poids des personnes qui circulent sur le treillis pendant les manipulations et éviter ainsi de détériorer la surface des panneaux I1, I2. On coule ensuite la dalle de béton sur l'ensemble. La fonction des éléments d'ancrage E1, E1', E2, E2' est de permettre une liaison solide entre le béton et les panneaux I1 et I2.To complete the construction of the concrete wall, a metal mesh T is then placed on unrepresented shims, advantageously made of plastics material, which can be integral with the anchoring elements E1, E1 ' , E2, E2'. as described in FR 2 624 154 A , or independent thereof, these shims resting on the panels I1 and I2 and now the lattice spaced apart from the anchoring elements and at a distance of about 3 cm from the surface of the panels. These wedges are preferably of great length to distribute the weight of people who circulate on the mesh during handling and thus avoid damaging the surface of the panels I1, I2. Then pour the concrete slab on the whole. The function of the anchoring elements E1, E1 ' , E2, E2' is to allow a solid connection between the concrete and the panels I1 and I2.
  • On peut voir en figure 3 la structure obtenue en coupe, après coulée du béton B, dans le cas de la réalisation d'un plancher isolant.We can see figure 3 the structure obtained in section, after pouring concrete B, in the case of the realization of an insulating floor.
  • De même que le coffrage de plancher classique selon EP 0 427 596 , le coffrage métallique selon l'invention repose avant coulée du béton sur des appuis tels que des étais qui seront retirés après durcissement, le coffrage étant alors suspendu à la dalle de béton grâce aux éléments d'ancrage. Toutefois, l'invention permet de réduire le nombre de ces étais, conduisant à une économie supplémentaire. Il suffit ainsi de disposer 3 étais entre deux poutres du plancher distantes de 6 mètres, alors que 6 à 10 étais doivent être alignés sur la même distance dans la technique existante. Le nombre d'étais est encore diminué, soit 1 étai pour un écartement de 6 mètres, lorsque les deux extrémités de chaque profilé s'appuient respectivement sur deux poutres voisines, soit directement, soit indirectement par exemple par l'intermédiaire de cornières fixées aux poutres.As well as the classic floor formwork according to EP 0 427 596 , the metal formwork according to the invention rests before pouring concrete on supports such as props that will be removed after hardening, the formwork then being suspended from the concrete slab through the anchoring elements. However, the invention makes it possible to reduce the number of these struts, leading to an additional saving. It suffices to have 3 stays between two beams of the floor 6 meters apart, while 6 to 10 struts must be aligned at the same distance in the existing technique. The number of struts is further decreased, 1 strut for one spacing of 6 meters, when the two ends of each section respectively rely on two adjacent beams, either directly or indirectly, for example by means of brackets fixed to the beams.
  • Il est possible si nécessaire de renforcer la liaison entre le béton et les profilés du coffrage selon l'invention en fixant sur ces profilés, par exemple par vissage, des tirants métalliques faisant saillie au-delà des panneaux isolants et noyés dans le béton sur une partie de l'épaisseur de celui-ci, sans affecter de manière notable l'isolation thermique.It is possible, if necessary, to reinforce the connection between the concrete and the sections of the formwork according to the invention by fastening on these sections, for example by screwing, metal tie rods protruding beyond the insulating panels and embedded in the concrete on a surface. part of the thickness thereof, without significantly affecting the thermal insulation.

Claims (12)

  1. Formwork for concrete walls comprising a multiplicity of panels of insulating material (I1, I2) which are juxtaposed with each other and fitted with anchoring elements (E1, E1', E2, E2') projecting from a first principal surface and a rigid formwork support covering the principal surface opposite of the panels, characterised in that the formwork support is formed of metal sections (1, 20) each forming the base (2) and the two sides (3, 4) of a channel which is filled with at least one insulating panel, the thickness of the latter being greater than the height of the section, the sections being mutually positioned alongside each other through cooperation between their edges (6, 9) formed on the two sides of the channel and housed in recesses in the form of notches of appropriate size provided in a side of the insulating panels.
  2. Formwork according to claim 1, in which the panels of insulating material (I1, I2) are of rock wool.
  3. Formwork according to claim 2, in which the rock wool panels have a bulk density which is higher in a surface zone adjacent to their first principal surface than in the rest of their thickness.
  4. Formwork according to any one of the preceding claims, in which the base (2) of the channel is provided with longitudinal stiffening ribs (5, 5', 5") and/or perforations.
  5. Formwork according to any one of the preceding claims, in which the sections are made of galvanised steel.
  6. Formwork according to any one of the preceding claims, in which each section comprises:
    - a central substantially flat portion (2) forming the base of the channel,
    - two leaves (3, 4) extending substantially perpendicular to the plane of the central portion (2) forming the sides of the channel,
    - a first edge (6) continuing on from a first leaf (3) and turned in the direction of the second leaf (4), and
    - a second edge (9) continuing on from the second leaf (4) and facing opposite the first leaf (3),
    - the second leaf (4) and the second edge (9) of a section bearing against the first leaf (3) and the first edge (6) of the neighbouring section respectively and the sections having mutual positioning means (7, 8, 10) preventing relative movement perpendicular to the central portion (2) and/or relative movement perpendicular to the leaves (3, 4).
  7. Formwork according to claim 6, in which the first and second edge (8, 9) extend substantially parallel to the plane of the central portion (2).
  8. Formwork according to either of claims 6 or 7, in which the mutual positioning means comprise a return (7) continuing on from the first edge (6) turned to face the second leaf (4) and forming a housing together with the first edge (6) in which the second edge (9) of the neighbouring section is inserted.
  9. Formwork according to claim 8, in which the mutual positioning means comprise interpenetrating particularly V-shaped sections (8, 10) formed on the first edge (6) of a section and on the second edge (9) of the neighbouring section.
  10. Formwork according to any one of the preceding claims for a concrete floor resting on horizontal parallel beams in which the two extremities of each section bear directly or indirectly on two neighbouring beams respectively.
  11. Module for the production of formwork for a concrete wall according to any one of the preceding claims, comprising a panel of insulating material (I1) fitted with anchoring elements (E1, E1') projecting from a first principal surface, and a metal section (1) forming the base (2) and the two sides (3, 4) of a channel which is filled by the insulating panel, the thickness of the latter being greater than the height of the section, the section being housed in a notch-shaped recess of appropriate size provided in a side of the insulating panel and the section further comprising edges (6, 9) formed on the two sides of the channel to form the formwork for a concrete wall by acting together with a corresponding edge (6, 9) of another section (20) of an identical module.
  12. Building wall comprising formwork according to any one of claims 1 to 10 and a concrete slab (B) cast on the first principal surface of the insulating panels (I1, I2) and embedding the anchoring elements.
EP20060820200 2005-10-14 2006-10-12 Insulating form for concrete walls Active EP1943395B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP05292172A EP1775397A1 (en) 2005-10-14 2005-10-14 Insulating formwork for concrete construction elements
PCT/FR2006/002299 WO2007045744A1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls
EP20060820200 EP1943395B1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20060820200 EP1943395B1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls

Publications (2)

Publication Number Publication Date
EP1943395A1 EP1943395A1 (en) 2008-07-16
EP1943395B1 true EP1943395B1 (en) 2014-03-19

Family

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EP05292172A Withdrawn EP1775397A1 (en) 2005-10-14 2005-10-14 Insulating formwork for concrete construction elements
EP20060820200 Active EP1943395B1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP05292172A Withdrawn EP1775397A1 (en) 2005-10-14 2005-10-14 Insulating formwork for concrete construction elements

Country Status (5)

Country Link
EP (2) EP1775397A1 (en)
EA (1) EA012427B1 (en)
ES (1) ES2467766T3 (en)
UA (1) UA90179C2 (en)
WO (1) WO2007045744A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101176551B1 (en) 2010-09-09 2012-08-23 (주)에스큐브 Light weight assembly for hollow and light slab using the same
EP2584111B1 (en) 2011-10-18 2015-08-26 Rockwool International A/S Reinforced concrete wall provided with insulating panels on the underside and a method of making such wall
RU168326U1 (en) * 2016-04-08 2017-01-30 Леонид Павлович Белов Wall and floor formwork panel made of foamed polyvinyl chloride
RU168327U1 (en) * 2016-04-08 2017-01-30 Леонид Павлович Белов Wall and floor formwork panel made of foamed polyvinyl chloride

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3238681A (en) * 1963-03-07 1966-03-08 Ircom S P A Structural members of sheet material for walls, roofings, floors and the like
CH503859A (en) * 1970-02-20 1971-02-28 Guigoz Andre Construction element
FR2098568A5 (en) * 1970-07-10 1972-03-10 Catesson Claude
FR2624154B1 (en) 1987-12-07 1990-05-04 Rockwool Isolation Sa DEVICE FOR FIXING PANELS OF INSULATING MATERIAL TO A REINFORCED CONCRETE SLAB
FR2654131A1 (en) 1989-11-07 1991-05-10 Saint Gobain Isover THERMAL AND SOUND INSULATION, IN PARTICULAR FOR CELLAR, PARKING OR VACUUM CEILING AND METHOD FOR PLACING SUCH INSULATION.
JPH05272189A (en) * 1992-03-26 1993-10-19 Ueki Kokan Kk Architectural metal panel
SE9700996D0 (en) * 1996-05-30 1997-03-18 Plannja Ab Beam flooring cassette and collaboration flooring
US6298622B1 (en) * 1996-10-15 2001-10-09 Plastedil, S.A. Self-supporting construction element of expanded plastics, in particular for manufacturing floor elements and walls of buildings in general
FR2818301B1 (en) 2000-12-15 2003-09-26 Usinor FLOOR USED FOR THE CONSTRUCTION OF A BUILDING COMPOSED OF U-SHAPED METAL PROFILES

Also Published As

Publication number Publication date
EP1775397A1 (en) 2007-04-18
UA90179C2 (en) 2010-04-12
EP1943395A1 (en) 2008-07-16
WO2007045744A1 (en) 2007-04-26
EA012427B1 (en) 2009-10-30
ES2467766T3 (en) 2014-06-13
EA200801084A1 (en) 2008-08-29

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