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EP1943395A1 - Insulating form for concrete walls - Google Patents

Insulating form for concrete walls

Info

Publication number
EP1943395A1
EP1943395A1 EP06820200A EP06820200A EP1943395A1 EP 1943395 A1 EP1943395 A1 EP 1943395A1 EP 06820200 A EP06820200 A EP 06820200A EP 06820200 A EP06820200 A EP 06820200A EP 1943395 A1 EP1943395 A1 EP 1943395A1
Authority
EP
European Patent Office
Prior art keywords
flange
profile
formwork
panels
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP06820200A
Other languages
German (de)
French (fr)
Other versions
EP1943395B1 (en
Inventor
Gilles Ghilardi
Christophe Dufosse
Jean-Pierre Fadet
Olivier Leblanc
Frédéric-Jérôme Cardona
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rockwool AS
Original Assignee
Rockwool International AS
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 Rockwool International AS filed Critical Rockwool International AS
Priority to EP06820200.1A priority Critical patent/EP1943395B1/en
Publication of EP1943395A1 publication Critical patent/EP1943395A1/en
Application granted granted Critical
Publication of EP1943395B1 publication Critical patent/EP1943395B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
    • E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
    • E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
    • E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
    • E04B5/38—Floor 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
    • E04B5/40—Floor 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

Definitions

  • the present invention relates to an insulating form for the construction of concrete walls, such as a floor, a roof or a building wall.
  • EP 1 215 346 discloses a floor including in particular a succession of metal profiles nested in each other and each lined with insulating blocks, the thermal insulation being completed by an air gap between the bottom of the profile and the block of 'insulating. 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.
  • 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, once built, the mechanical properties in tension and bending of its metal components, such as galvanized steel or not.
  • 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.
  • 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.
  • the formwork according to the invention may also comprise different characteristics, taken alone or in combination:
  • 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.
  • Each profile includes:
  • the second flange and the second rim of a section bearing respectively on the first flange and on the first flange of the neighboring section, and the sections comprising mutual positioning means opposing a relative movement perpendicular to the central zone and / or a relative movement perpendicular to the wings.
  • the first and second flanges extend substantially parallel to the plane of the central range.
  • the mutual positioning means comprises a return following the first flange, turned away from the second flange and forming with the first flange a housing in which is inserted the second flange of the adjacent section.
  • 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.
  • a second object of the invention is constituted by a module for producing a formwork for a concrete wall, comprising a profile and at least one insulating panel as defined above, the channel of the profile being filled by the panel or panels insulators and a flange of the profile being housed in the recesses in the form of notches.
  • 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.
  • This concrete wall may especially be used for the realization of a floor, a roof or an exterior or interior wall.
  • the invention 'even for objects a metal profile and an insulating own panel to join the aforementioned formwork.
  • 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.
  • FIG. 1 is a sectional view of a profile according to the invention
  • FIG. 2 is a perspective view of a concrete floor according to the invention, in progress
  • FIG. 3 is a schematic sectional view of a concrete floor according to the invention.
  • the profile 1 comprises a substantially planar central zone 2 and two wings 3 and 4 extending substantially perpendicular 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.
  • the central area 2 is provided with perforations intended to promote the acoustic absorption action of the insulation.
  • the thickness of the profile 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''.
  • 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 flange 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.
  • the flange 6 is folded according to a V-shaped profile 8 whose tip is directed downwards.
  • 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.
  • the flange 9 has a V-shaped profile 10 identical to that of the first flange.
  • the profile 1 is metallic and preferably made of galvanized steel, which makes it possible to provide good corrosion resistance to the assembly.
  • 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.
  • FIG. 2 shows how to use the profiles according to the invention to produce a formwork according to the invention, and then a concrete wall according to the invention, such as a floor as shown in FIG.
  • FIG. 2 shows a first profile 1 identical to that described in FIG. 1, as well as a profile 20 identical to profile 1 and comprising in particular a second flange 24 and a second flange 29 identical to flange 4 and flange 9.
  • a first panel of insulating material II is introduced inside the section 1, the height (the thickness) of the panel II being greater than the height of the first section 1.
  • one of the sides of the panel It was previously cut horizontally at the height of the first 6.
  • the panel II is placed in the section 1 so that the first edge 6 of the section 1 is fully inserted into the notch of the panel II.
  • 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.
  • the panels II and 12 may be any rigid insulating panels as defined in (to be completed), including mineral wool panels such as rock wool or glass wool, or panels of cellular plastic 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.
  • the panels II and 12 have on their upper face integrated anchoring elements El, El ', 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 II and 12.
  • 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 profile 1, then the profile 20 is rotated so as to bring the rim 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 interlock with one another while the flanges 3 and 24 are mutually mutually supportive. contiguous and that the central beaches 2 and 22 extend substantially in the same plane.
  • 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 perpendicular to this plane in the housing formed by flange 6 and return 7.
  • rock wool panels II and 12 then form a continuous layer above the sections 1 and 20, thus eliminating any possibility of creating thermal bridges.
  • a metal mesh T is then placed on unrepresented shims, advantageously made of plastics material, which can be integral with the anchoring elements El, El ', E2, E2', as described in FR 2 624 154 A, or independent thereof, these shims resting on the panels II and 12 and now the lattice spaced apart from the anchoring elements and at a distance of about 3 cm from the surface Signs.
  • 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 panels II, 12.
  • the concrete slab is then cast on the assembly.
  • the function of the anchoring elements El, El ', E2, E2' is to allow a solid connection between the concrete and the panels II and 12.
  • the metal formwork according to the invention rests before pouring the concrete on supports such as props that will be removed after hardening, the formwork then being suspended from the concrete slab thanks to anchoring elements.
  • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Building Environments (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)

Abstract

The invention relates to a metal section (1) comprising: an essentially planar central area (2) forming the bottom (2) of a channel; two flanges (3, 4) extending essentially perpendicular to the plane of the central area (2) and forming the sides of the channel; a first edge (6) ensuing from a first flange (3) and facing the second flange (4), and; a second edge (9) ensuing from the second flange (4) and facing away from the first flange (3); the section comprises positioning means (7, 8, 10) that prevent a relative movement perpendicular to the central area (2) and/or a relative movement perpendicular to the flanges (3, 4) when the second flange (4) and the second edge (9) are respectively supported on the first flange (3) and on the first edge (6) of an identical section. The invention also relates to a form obtained by assembling sections of this type and insulating material panels as well as to a panel of this type and a concrete wall integrating the form and a metal mesh.

Description

Coffrage isolant, pour parois en bétonInsulating formwork, for concrete walls
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 houses, 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.It is known, in particular from EP 0 427 596, to produce a formwork for a concrete floor comprising a plurality 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. 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. 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 a 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 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 discloses a floor including in particular a succession of metal profiles nested in each other and each lined with insulating blocks, the thermal insulation being completed by an air gap between the bottom of the profile and the block of 'insulating. 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. 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, once built, the mechanical properties in tension 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 combinai- son :The formwork according to the invention may also comprise different characteristics, taken alone or in combination:
- Lesdits panneaux de matière isolante sont en laine de roche.- Said panels of insulating material are rock wool.
- 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.- 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.
- Le fond du canal est muni de nervures longitudinales raidisseuses et/ou de perforations.- The bottom of the channel is provided with stiffening longitudinal ribs and / or perforations.
- Les profilés sont réalisés en acier galvanisé. - Chaque profilé comprend :- The profiles are made of galvanized steel. - Each profile includes:
- 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,a substantially flat central zone 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,
- un premier rebord faisant suite à une première aile et tourné en direction de la seconde aile, eta first rim following a first wing and turned towards the second wing, and
- un second rebord faisant suite à la seconde aile et tourné à l'opposé de la première aile,a second edge following the second wing and turned away from the first wing,
- 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.the second flange and the second rim of a section bearing respectively on the first flange and on the first flange of the neighboring section, and the sections comprising mutual positioning means opposing a relative movement perpendicular to the central zone and / or a relative movement perpendicular to the wings. - The first and second flanges extend substantially parallel to the plane of the central range.
- Les moyens de positionnement mutuel comprennent un retour faisant suite au premier rebord, tourné a l'opposé de la seconde aile et formant avec le premier rebord un logement dans lequel s'insère le second rebord du profilé voisin.- The mutual positioning means comprises a return following the first flange, turned away from the second flange and forming with the first flange a housing in which is inserted the second flange of the adjacent section.
- 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.- 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.
- 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. Un second objet de l'invention est constitué par un module pour la réalisation d'un coffrage pour paroi en béton, comprenant un profilé et au moins un panneau isolant tels que définis plus haut, le canal du profilé étant rempli par le ou les panneaux isolants et un rebord du profilé étant logé dans les évidements en forme d'encoches.- To achieve a concrete floor resting on parallel horizontal beams, the two ends of each profile bear directly or indirectly on two neighboring beams respectively. A second object of the invention is constituted by a module for producing a formwork for a concrete wall, comprising a profile and at least one insulating panel as defined above, the channel of the profile being filled by the panel or panels insulators and a flange of the profile being housed in the recesses in the form of notches.
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 exté- rieur ou intérieur.This concrete wall may especially be used for the realization of a floor, a roof or an exterior or interior wall.
L'invention a' encore pour objets un profilé métallique et un panneau isolant propres à faire partie du coffrage susmentionné.The invention 'even for objects a metal profile and an insulating own panel to join the aforementioned formwork.
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 :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:
- la figure 1 est une vue en coupe d'un profilé selon l'invention,FIG. 1 is a sectional view of a profile according to the invention,
- la figure 2 est une vue en perspective d'un plancher en béton selon l'invention, en cours de réalisation,FIG. 2 is a perspective view of a concrete floor according to the invention, in progress,
- la figure 3 est une vue schématique en coupe d'un plancher en béton selon l'invention.- 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 in FIG. 1, the profile 1 according to the invention comprises a substantially planar central zone 2 and two wings 3 and 4 extending substantially perpendicular 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''. 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.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 profile 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''. 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 flange 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. 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 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. . 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.FIG. 2 shows how to use the profiles according to the invention to produce a formwork according to the invention, and then a concrete wall according to the invention, such as a floor as shown in FIG.
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. On introduit tout d'abord un premier panneau de matière isolante II à l'intérieur du profilé 1, la hauteur (l'épaisseur) du panneau II étant supérieure à la hauteur du premier profilé 1. En outre, un des flancs du panneau II a été préalablement entaillé horizontalement à hauteur du premier rebord 6. Le panneau II est placé dans le profilé 1 de sorte que le premier rebord 6 du profilé 1 soit entièrement inséré dans l'entaille du panneau II. 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 II peuvent être alignés de manière jointive sur la longueur du profilé 1, en fonction des longueurs respectives du profilé et des panneaux. On procède de façon identique avec le second profilé 20 que l'on garnit d'un ou plusieurs panneaux de matière isolante 12. On répète l'opération avec autant de profilés identiques aux profilés 1 et 20 que nécessaire.FIG. 2 shows a first profile 1 identical to that described in FIG. 1, as well as a profile 20 identical to profile 1 and comprising in particular a second flange 24 and a second flange 29 identical to flange 4 and flange 9. Firstly, a first panel of insulating material II is introduced inside the section 1, the height (the thickness) of the panel II being greater than the height of the first section 1. In addition, one of the sides of the panel It was previously cut horizontally at the height of the first 6. The panel II is placed in the section 1 so that the first edge 6 of the section 1 is fully inserted into the notch of the panel II. 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 II 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. The same procedure is carried out with the second section 20 which is filled with one or more panels of insulating material 12. The operation is repeated with as many profiles as the profiles 1 and 20 as necessary.
Les panneaux II et 12 peuvent être tous panneaux isolants rigides tels que définis dans (à compléter) , 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 II and 12 may be any rigid insulating panels as defined in (to be completed), including mineral wool panels such as rock wool or glass wool, or panels of cellular plastic 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 II et 12 comportent sur leur face supé- rieure des éléments d'ancrage El, El', 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 II et 12. 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 dimen- sionnés 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 panels II and 12 have on their upper face integrated anchoring elements El, El ', 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 II and 12. 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 profile 1, then the profile 20 is rotated so as to bring the rim 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 interlock with one another while the flanges 3 and 24 are mutually mutually supportive. 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 perpendicular to this plane in the housing formed by flange 6 and return 7.
On voit que les panneaux de laine de roche II et 12 forment alors une couche continue au-dessus des profilés 1 et 20, supprimant ainsi toute possibilité de création de ponts thermiques.It can be seen that the rock wool panels II and 12 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 El, El', E2, E2', comme décrit dans FR 2 624 154 A, ou indépendantes de ceux-ci, ces cales d'épaisseur reposant sur les panneaux II et 12 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 II, 12. On coule ensuite la dalle de béton sur l'ensemble. La fonction des éléments d'ancrage El, El', E2, E2 ' est de permettre une liaison solide entre le béton et les panneaux II et 12.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 El, El ', E2, E2', as described in FR 2 624 154 A, or independent thereof, these shims resting on the panels II and 12 and now the lattice spaced apart from the anchoring elements and at a distance of about 3 cm from the surface Signs. 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 panels II, 12. The concrete slab is then cast on the assembly. The function of the anchoring elements El, El ', E2, E2' is to allow a solid connection between the concrete and the panels II and 12.
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 in Figure 3 the structure obtained in section, after casting 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 a 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 . II 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 . As well as the conventional floor formwork according to EP 0 427 596, the metal formwork according to the invention rests before pouring the concrete on supports such as props that will be removed after hardening, the formwork then being suspended from the concrete slab thanks to 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. 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

Revendications claims
1. Coffrage pour paroi en béton comprenant une multiplicité de panneaux de matière isolante (11,12) mutuellement juxtapo- ses munis d'éléments d'ancrage (El, El', E2, E2') faisant saillie sur une première face principale, et un support de coffrage rigide recouvrant la face principale opposée des panneaux, caractérisé en ce que le support de coffrage est formé par des profilés métalliques (1,20) définissant chacun le fond (2) et les deux côtés (3,4) 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 (6,9) formés sur les deux côtés du canal et logés dans des évidements en forme d'encoches d'une largeur appropriée ménagés dans un flanc des panneaux isolants .1. Concrete wall formwork comprising a multiplicity of insulating material panels (11, 12) mutually juxtaposed with anchoring elements (El, El ', E2, E2') projecting from a first main face, and a rigid formwork support covering the opposite main face of the panels, characterized in that the formwork support is formed by metal sections (1,20) each defining the bottom (2) and the two sides (3,4) d 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 (6, 9) formed on both sides of the channel and housed in recesses in the form of notches of appropriate width formed in a sidewall of the insulating panels.
2. Coffrage selon la revendication 1, dans lequel lesdits panneaux de matière isolante (11,12) sont en laine de roche.2. Formwork according to claim 1, wherein said panels of insulating material (11,12) are rockwool.
3. Coffrage selon la revendication 2 , dans lequel 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.The formwork of claim 2, wherein said rock wool panels have a higher density in a surface area adjacent to their first major face than over the rest of their thickness.
4. Coffrage selon l'une des revendications précédentes, dans lequel le fond (2) du canal est muni de nervures longitudinales raidisseuses (5,5',5'') et/ou de perforations.4. Formwork according to one of the preceding claims, wherein the bottom (2) of the channel is provided with longitudinal ribs stiffening (5,5 ', 5' ') and / or perforations.
5. Coffrage selon l'une des revendications précédentes, dans lequel les profilés sont réalisés en acier galvanisé.5. Formwork according to one of the preceding claims, wherein the profiles are made of galvanized steel.
6. Coffrage selon l'une des revendications précédentes, dans lequel chaque profilé comprend : - une plage centrale (2) sensiblement plane formant le fond du canal,6. Formwork according to one of the preceding claims, wherein each profile comprises: - a substantially flat central region (2) forming the bottom of the channel,
- deux ailes (3,4) s 'étendant sensiblement perpendiculairement au plan de la plage centrale (2) et formant les côtés du canal, - un premier rebord (6) faisant suite à une première aile (3) et tourné en direction de la seconde aile (4), ettwo wings (3, 4) extending substantially perpendicular to the plane of the central area (2) and forming the sides of the channel, a first flange (6) following a first flange (3) and turned towards the second flange (4), and
- un second rebord (9) faisant suite a la seconde aile (4) et tourné à l'opposé de la première aile (3),a second flange (9) following the second flange (4) and turned away from the first flange (3),
- la seconde aile (4) et le second rebord (9) d'un profilé étant en appui respectivement sur la première aile (3) et sur le premier rebord (6) du profilé voisin et les profilés comportant des moyens de positionnement mutuel (7,8,10) s 'opposant à un mouvement relatif perpendiculairement a la plage centrale (2) et/ou à un mouvement relatif perpendiculairement aux ailes (3,4).the second flange (4) and the second flange (9) of a section bearing respectively on the first flange (3) and on the first flange (6) of the adjacent section and the sections comprising mutual positioning means ( 7,8,10) opposing a relative movement perpendicular to the central area (2) and / or a relative movement perpendicular to the wings (3,4).
7. Coffrage selon la revendication 6, dans lequel les premier et second rebords (8,9) s'étendent sensiblement parallèlement au plan de la plage centrale (2).The formwork of claim 6, wherein the first and second flanges (8, 9) extend substantially parallel to the plane of the center pad (2).
8. Coffrage selon l'une des revendications 6 et 7, dans lequel les moyens de positionnement mutuel comprennent un retour (7) faisant suite au premier rebord (6), tourné à l'opposé de la seconde aile (4) et formant avec le premier rebord ( 6 ) un logement dans lequel s ' insère le second rebord (9) du profilé voisin.8. Formwork according to one of claims 6 and 7, wherein the mutual positioning means comprises a return (7) following the first flange (6), turned away from the second flange (4) and forming with the first flange (6) is a housing in which the second flange (9) of the adjacent section is inserted.
9. Coffrage selon la revendication 8, dans lequel les moyens de positionnement mutuel comprennent des profils s 'interpénétrant (8,10), notamment en V, formés sur le premier rebord (6) d'un profilé et sur le second rebord (9) du profilé voisin.9. Formwork according to claim 8, wherein the mutual positioning means comprise interpenetrating profiles (8,10), in particular V, formed on the first flange (6) of a profile and on the second flange (9). ) of the neighboring profile.
10. Coffrage selon l'une des revendications précédentes pour un plancher en béton reposant sur des poutres horizontales parallèles, dans lequel les deux extrémités de chaque profilé s'appuient directement ou indirectement sur deux poutres voisines respectivement.10. Formwork according to one of the preceding claims for a concrete floor resting on parallel horizontal beams, wherein the two ends of each section bear directly or indirectly on two neighboring beams respectively.
11. Module pour la réalisation d'un coffrage pour paroi en béton, comprenant un profilé (1) et au moins un panneau isolant (II) tels que définis dans l'une des revendications précédentes, le canal du profilé étant rempli par le ou les panneaux isolants et un rebord (6) du profilé étant logé dans les évidements en forme d'encoches.11. Module for producing a formwork for a concrete wall, comprising a profile (1) and at least one panel insulation (II) as defined in one of the preceding claims, the channel of the profile being filled by the insulation board or panels and a flange (6) of the profile being housed in the recesses in the form of notches.
12. Paroi de bâtiment comprenant un coffrage selon l'une des revendications 1 à 10 et une dalle de béton (B) coulée sur la première face principale des panneaux isolants (11,12) et noyant lesdits éléments d'ancrage.12. Building wall comprising a formwork according to one of claims 1 to 10 and a concrete slab (B) cast on the first main face of the insulating panels (11,12) and embedding said anchoring elements.
13. Profilé métallique propre à faire partie d'un coffrage selon l'une des revendications 6 à 9, comprenant :13. Clean metal profile to be part of a formwork according to one of claims 6 to 9, comprising:
- une plage centrale (2) sensiblement plane formant le fond (2) du canal, - deux ailes (3,4) s 'étendant sensiblement perpendiculairement au plan de la plage centrale (2) et formant les côtés du canal,a substantially planar central zone (2) forming the bottom (2) of the channel, two wings (3, 4) extending substantially perpendicular to the plane of the central zone (2) and forming the sides of the channel;
- un premier rebord (6) faisant suite à une première aile (3) et tourné en direction de la seconde aile (4), eta first flange (6) following a first flange (3) and turned towards the second flange (4), and
- un second rebord (9) faisant suite à la seconde aile (4) et tourné à l'opposé de la première aile (3),a second flange (9) following the second flange (4) and turned away from the first flange (3),
- le profilé comportant des moyens de positionnement (7,8,10) s Opposant à un mouvement relatif perpendi- culairement à la plage centrale (2) et/ou à un mouvement relatif perpendiculairement aux ailes (3,4) lorsque la seconde aile (4) et le second rebord (9) sont en appui respectivement sur la première aile (3) et sur le premier rebord (6) d'un profilé identique.the profile comprising positioning means (7, 8, 10) opposing a relative movement perpendicular to the central zone (2) and / or a relative movement perpendicular to the wings (3, 4) when the second wing (4) and the second flange (9) bear respectively on the first flange (3) and on the first flange (6) of an identical profile.
14. Panneau isolant propre à faire partie d'un coffrage selon l'une des revendications 1 à 10, présentant dans un de ses flancs un évidement longitudinal en forme d'encoche.14. Insulating panel clean form part of a formwork according to one of claims 1 to 10, having in one of its flanks a longitudinal recess-shaped notch.
15. Panneau isolant selon la revendication 14, dans lequel le flanc opposé à celui présentant l'évidement est sensiblement plat. WThe insulating panel of claim 14, wherein the flank opposite to that having the recess is substantially flat. W
1212
16. Panneau isolant selon la revendication 14, dans lequel les deux flancs opposés présentent des évidements en forme d'encoches. 16. The insulating panel of claim 14, wherein the two opposite flanks have recesses in the form of notches.
EP06820200.1A 2005-10-14 2006-10-12 Insulating form for concrete walls Not-in-force EP1943395B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06820200.1A EP1943395B1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls

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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
EP06820200.1A EP1943395B1 (en) 2005-10-14 2006-10-12 Insulating form for concrete walls

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EP1943395B1 EP1943395B1 (en) 2014-03-19

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EA (1) EA012427B1 (en)
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KR101176551B1 (en) 2010-09-09 2012-08-23 (주)에스큐브 Light weight assembly for hollow and light slab using the same
PL2584111T3 (en) 2011-10-18 2016-01-29 Rockwool Int 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

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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.
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EP1775397A1 (en) 2007-04-18
ES2467766T3 (en) 2014-06-13
UA90179C2 (en) 2010-04-12

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