EP1424452A1 - Foldable formwork for a concrete wall - Google Patents

Foldable formwork for a concrete wall Download PDF

Info

Publication number
EP1424452A1
EP1424452A1 EP02026550A EP02026550A EP1424452A1 EP 1424452 A1 EP1424452 A1 EP 1424452A1 EP 02026550 A EP02026550 A EP 02026550A EP 02026550 A EP02026550 A EP 02026550A EP 1424452 A1 EP1424452 A1 EP 1424452A1
Authority
EP
European Patent Office
Prior art keywords
formwork
stiffener
stiffeners
walls
opposite
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.)
Withdrawn
Application number
EP02026550A
Other languages
German (de)
French (fr)
Inventor
Pierre Messiqua
Régis Messiqua
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.)
Coffor Internacional Exploracao de Patentes Ltda
Original Assignee
Coffor Internacional Exploracao de Patentes Ltda
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 Coffor Internacional Exploracao de Patentes Ltda filed Critical Coffor Internacional Exploracao de Patentes Ltda
Priority to EP02026550A priority Critical patent/EP1424452A1/en
Priority to AU2003279490A priority patent/AU2003279490A1/en
Priority to PCT/IB2003/005519 priority patent/WO2004048713A1/en
Publication of EP1424452A1 publication Critical patent/EP1424452A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2/8635—Walls made by casting, pouring, or tamping in situ made in permanent forms with ties attached to the inner faces of the forms
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/84—Walls made by casting, pouring, or tamping in situ
    • E04B2/86—Walls made by casting, pouring, or tamping in situ made in permanent forms
    • E04B2002/8694—Walls made by casting, pouring, or tamping in situ made in permanent forms with hinged spacers allowing the formwork to be collapsed for transport

Definitions

  • the present invention relates to a formwork intended to reinforce a concrete wall or similar material.
  • This formwork consists of two formwork walls placed one opposite the other and connected by connecting elements hinged to the walls shuttering by means of stiffeners integral with the shuttering walls. Space separating the formwork walls, after unfolding, is filled with a material such as concrete.
  • Document PCT / IB02 / 02895 describes a formwork comprising an outer wall and an inner wall, these walls, called formwork walls, comprising generally circular connecting elements articulated on the walls and vertical stiffeners formed by profiled bars generally in the shape of a U. Reinforcement elements are introduced between the lateral sides of the profiles of two stiffeners placed opposite each other.
  • Each frame member includes at least one vertical bar and at least two horizontal crosspieces adjusted to slide inside the stiffener profile.
  • This reinforcing element is added after the deployment of the formwork walls by sliding in the stiffeners which act as guide rails.
  • the U shape of these stiffeners ensure the maintenance and stability of this reinforcing element while facilitating its insertion.
  • a folded formwork will have a thickness corresponding to the sum of thicknesses of the formwork walls plus twice the height of the U-profiles of stiffeners.
  • height of the stiffener is meant the height measured on the face outside of the lateral sides (branches of the U) of the profile.
  • a large site requires a large number of forms of various dimensions that you have to move from one place to another with a minimum of trips.
  • the purpose of the present invention is to minimize the size of the formwork prefabricated both in terms of storage after assembly and in terms of transport to and during the construction site.
  • a foldable formwork for concrete wall with two walls parallel formwork placed one opposite the other and connected by elements of connection articulated to the shuttering walls by profiled bars in general shape of U secured to the formwork walls by means of vertical stiffeners formed, the opening of the U being directed towards the shuttering wall located opposite, characterized in that a stiffener of a shuttering wall is offset from the corresponding stiffener located opposite on the opposite formwork wall, the offset allowing a lateral side of a stiffener to penetrate between the sides sides of the stiffener located opposite when the formwork is folded.
  • the formwork provided with offset stiffeners according to the invention reaches a thickness minimal, when folded.
  • the thickness is reduced by the interpenetration of stiffeners in each other to correspond only to the sum of the thicknesses of the formwork walls, plus about once the height of a stiffener. This gain in thickness makes it possible to stack a greater quantity of forms and, by Consequently, space and transport costs can be saved.
  • the offset of the stiffeners is adapted so as to allow the places reinforcing elements by guide between the lateral sides of the stiffeners as described above.
  • Figure 1 illustrates the unfolded formwork with an external formwork wall (1) and a interior shuttering wall (2). These walls are made up of screens allowing passage water and retaining the concrete when it is poured into the space separating the shuttering walls (1, 2).
  • the shuttering walls (1, 2) are connected by connecting elements or stirrups (3, 3 ') generally in the form of a zigzag making it possible to maintain a fixed spacing between the walls.
  • Stiffeners 4 are placed vertically along the shuttering walls (1, 2) to ensure the rigidity of the formwork. It should be noted that the first and last stiffeners must be placed near the ends of the walls (1, 2) in order to preserve the parallelism of said walls over their entire length after pouring the concrete. In effect, the absence of a stiffener in these places can cause the spacing of the walls to their end under the pressure of concrete.
  • the connecting elements (3, 3 ') separating the formwork walls are articulated to walls (1, 2) and fixed to them by means of suitable fasteners and spacers.
  • the stiffeners (4) are in the form of U-shaped profiles, the opening of which is directed towards the space separating the formwork walls.
  • a wall stiffener is offset from the one opposite so that the axes of symmetry (a, a ') of the section of the U-profile of each stiffener passes between the two lateral sides of the stiffener opposite.
  • Figure 2 shows the folded formwork. grace at the joints of the connecting elements (3, 3 '), the formwork folds by folding connecting elements (3, 3 ') against the inner faces of the walls (1, 2).
  • the joints of the connecting elements are located between the stiffeners (4) and the shuttering wall (1, 2) on a horizontal segment (5) of said elements and parallel to said wall.
  • the segment (5) rotates around its axis longitudinal.
  • the horizontal articulated segment (5) has a longer length to the width of the stiffener (4).
  • this segment (5) is offset by a distance (d ') relative to the stiffener (4).
  • This distance (d ') corresponds at least to the offset (d) of the axis (a) of a stiffener (4) with the axis (a ') of its opposite.
  • the stiffener (4) is off-center on the horizontal segment (5) of the connecting element (3, 3 ').
  • FIG. 3 illustrates a formwork reinforced by reinforcing elements (6) introduced in the space separating the formwork walls (1, 2) and between the lateral sides of two facing stiffeners.
  • Each reinforcing element comprises at least one vertical bar and at least two horizontal cross members adjusted to slide at inside the U-profile of the stiffeners.
  • the present invention also relates to a wall in which a formwork with staggered or staggered stiffeners are used. Concrete is poured between the walls formwork, the mesh structure of which acts as a water-draining filter. The formwork thus embedded and embedded in concrete constitutes a reinforcement guaranteeing a large robustness to the wall.

Landscapes

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

Abstract

The flexible shuttering for a concrete wall has two parallel shuttering walls (1,2) and connected by hinged struts (3,3') mounted by profiled bars fixed to the walls by vertical channel sections (4) which are offset to each other on the opposing walls. The offset allows the flange of one channel section to fit between the sidewalls of the opposing channel section. The length of the horizontal segments (5) is longer than the width of the U-channels.

Description

La présente invention concerne un coffrage destiné à renforcer un mur en béton ou matériau semblable. Ce coffrage est constitué de deux parois coffrantes placées l'une en face de l'autre et reliées par des éléments de liaisons articulés aux parois coffrantes par l'intermédiaire de raidisseurs solidaires des parois coffrantes. L'espace séparant les parois coffrantes, après dépliage, est rempli d'un matériau tel que le béton.The present invention relates to a formwork intended to reinforce a concrete wall or similar material. This formwork consists of two formwork walls placed one opposite the other and connected by connecting elements hinged to the walls shuttering by means of stiffeners integral with the shuttering walls. Space separating the formwork walls, after unfolding, is filled with a material such as concrete.

Afin de garantir la solidité de murs de bâtiments ou autres ouvrages en béton, il est connu de disposer une armature métallique à l'intérieur des murs. Une technique souvent employée est d'utiliser des parois en coffrage perdu c'est-à-dire un coffrage qui subsiste comme faisant partie intégrante du mur après avoir coulé le béton à l'intérieur.In order to guarantee the solidity of walls of buildings or other concrete structures, it is known to have a metal frame inside the walls. A technique often used is to use walls in lost formwork that is to say formwork which remains as an integral part of the wall after pouring the concrete in inside.

Le document PCT/IB02/02895 décrit un coffrage comprenant une paroi extérieure et une paroi intérieure, ces parois, appelées parois coffrantes, comportant des éléments de liaison de section en général circulaire articulés aux parois et des raidisseurs verticaux constitués par des barres profilées en général en forme de U. Des éléments d'armature sont introduits entre les cotés latéraux des profilés de deux raidisseurs placés en vis-à-vis sur chacune des parois. Chaque élément d'armature comprend au moins une barre verticale et au moins deux traverses horizontales ajustées pour glisser à l'intérieur du profil des raidisseurs.Document PCT / IB02 / 02895 describes a formwork comprising an outer wall and an inner wall, these walls, called formwork walls, comprising generally circular connecting elements articulated on the walls and vertical stiffeners formed by profiled bars generally in the shape of a U. Reinforcement elements are introduced between the lateral sides of the profiles of two stiffeners placed opposite each other. Each frame member includes at least one vertical bar and at least two horizontal crosspieces adjusted to slide inside the stiffener profile.

Cet élément d'armature est ajouté après le déploiement des parois coffrantes par glissement dans les raidisseurs qui font office de rails de guidage. La forme en U de ces raidisseurs assure le maintien et la stabilité de cet élément d'armature tout en facilitant son insertion.This reinforcing element is added after the deployment of the formwork walls by sliding in the stiffeners which act as guide rails. The U shape of these stiffeners ensure the maintenance and stability of this reinforcing element while facilitating its insertion.

Les différents éléments du coffrage tels que les parois coffrantes, les éléments de liaisons et les raidisseurs sont préfabriqués en usine puis assemblés à l'aide d'attaches adéquates pour former le coffrage. Ce dernier ainsi réalisé quitte l'usine sous forme pliée grâce aux articulations des éléments de liaisons disposées sur les parois derrière les raidisseurs. Les éléments de liaisons sont rabattus contre les faces intérieures des parois coffrantes qui se trouvent ainsi superposées l'une sur l'autre. Le pliage permet d'empiler plusieurs coffrages les uns sur les autres afin de réduire leur encombrement durant leur transport de l'usine vers le chantier de construction. Un coffrage plié aura une épaisseur correspondant somme des épaisseurs des parois coffrantes plus deux fois la hauteur des profilés en U des raidisseurs. Par hauteur du raidisseur, on entend la hauteur mesurée sur la face extérieure des côtés latéraux (branches du U) du profilé.The various elements of the formwork such as the formwork walls, the elements of connections and stiffeners are prefabricated in the factory and then assembled using adequate fasteners to form the formwork. The latter thus produced leaves the factory in folded form thanks to the articulations of the connecting elements arranged on the walls behind the stiffeners. The connecting elements are folded against the inner faces of the formwork walls which are thus superimposed one on the other. Folding makes it possible to stack several forms on top of each other in order to reduce their size during transport from the factory to the construction site construction. A folded formwork will have a thickness corresponding to the sum of thicknesses of the formwork walls plus twice the height of the U-profiles of stiffeners. By height of the stiffener is meant the height measured on the face outside of the lateral sides (branches of the U) of the profile.

Un chantier important exige un grand nombre de coffrages de dimensions variées qu'il faut déplacer d'un endroit à un autre en effectuant un minimum de trajets. Au vu des exigences de rentabilité et de rapidité des constructions des ouvrages en béton, il devient nécessaire d'optimaliser toutes les étapes du chantier à commencer par le transport et le stockage du matériel.A large site requires a large number of forms of various dimensions that you have to move from one place to another with a minimum of trips. In view requirements for profitability and speed of construction of concrete structures, it becomes necessary to optimize all stages of the site, starting with the transportation and storage of equipment.

Le but de la présente invention est de minimiser l'encombrement des coffrages préfabriqués aussi bien au niveau du stockage après assemblage qu'au niveau des transports vers et durant le chantier de construction.The purpose of the present invention is to minimize the size of the formwork prefabricated both in terms of storage after assembly and in terms of transport to and during the construction site.

Ce but est atteint par un coffrage pliable pour mur en béton comportant deux parois coffrantes parallèles placées l'une en face de l'autre et connectées par des éléments de liaison articulés aux parois coffrantes par des barres profilées en forme générale de U solidaires des parois coffrantes par l'intermédiaire de raidisseurs verticaux constitués, l'ouverture du U étant dirigée vers la paroi coffrante située en face, caractérisé en ce qu'un raidisseur d'une paroi coffrante est décalé par rapport au raidisseur correspondant se trouvant vis-à-vis sur la paroi coffrante d'en face, le décalage permettant à un côté latéral d'un raidisseur de pénétrer entre les côtés latéraux du raidisseur situé en face lors du pliage du coffrage.This goal is achieved by a foldable formwork for concrete wall with two walls parallel formwork placed one opposite the other and connected by elements of connection articulated to the shuttering walls by profiled bars in general shape of U secured to the formwork walls by means of vertical stiffeners formed, the opening of the U being directed towards the shuttering wall located opposite, characterized in that a stiffener of a shuttering wall is offset from the corresponding stiffener located opposite on the opposite formwork wall, the offset allowing a lateral side of a stiffener to penetrate between the sides sides of the stiffener located opposite when the formwork is folded.

Le coffrage muni des raidisseurs décalés selon l'invention atteint une épaisseur minimale, une fois plié. L'épaisseur est diminuée par l'interpénétration des raidisseurs l'un dans l'autre pour ne correspondre qu'à la somme des épaisseurs des parois coffrantes, plus environ une fois la hauteur d'un raidisseur. Ce gain en épaisseur permet d'empiler une plus grande quantité de coffrages et, par conséquent, une économie de place et de frais de transport peut être réalisée.The formwork provided with offset stiffeners according to the invention reaches a thickness minimal, when folded. The thickness is reduced by the interpenetration of stiffeners in each other to correspond only to the sum of the thicknesses of the formwork walls, plus about once the height of a stiffener. This gain in thickness makes it possible to stack a greater quantity of forms and, by Consequently, space and transport costs can be saved.

Le décalage des raidisseurs est adapté de telle manière à permettre la mise en place des éléments d'armature par guidage entre les côtés latéraux des raidisseurs comme décrit plus haut. The offset of the stiffeners is adapted so as to allow the places reinforcing elements by guide between the lateral sides of the stiffeners as described above.

L'invention sera mieux comprise grâce à la description détaillée qui va suivre et qui se réfère aux dessins annexés qui sont donnés à titre d'exemple nullement limitatif, à savoir:

  • la figure 1 est une vue de dessus d'un coffrage déplié avec raidisseurs décalés,
  • la figure 2 est une vue de dessus du coffrage plié,
  • la figure 3 est une vue de dessus du coffrage muni d'éléments d'armature,
The invention will be better understood thanks to the detailed description which follows and which refers to the attached drawings which are given by way of non-limiting example, namely:
  • FIG. 1 is a top view of an unfolded formwork with offset stiffeners,
  • FIG. 2 is a top view of the folded formwork,
  • FIG. 3 is a top view of the formwork provided with reinforcing elements,

La figure 1 illustre le coffrage déplié avec une paroi coffrante extérieure (1) et une paroi coffrante intérieure (2). Ces parois sont constituées de grillages laissant passer l'eau et retenant le béton lors du coulage de celui-ci dans l'espace séparant les parois coffrantes (1, 2).Figure 1 illustrates the unfolded formwork with an external formwork wall (1) and a interior shuttering wall (2). These walls are made up of screens allowing passage water and retaining the concrete when it is poured into the space separating the shuttering walls (1, 2).

Les parois coffrantes (1, 2) sont reliées par des éléments de liaison ou étriers (3, 3') en forme générale de zigzag permettant de maintenir un écartement fixe entre les parois.The shuttering walls (1, 2) are connected by connecting elements or stirrups (3, 3 ') generally in the form of a zigzag making it possible to maintain a fixed spacing between the walls.

Des raidisseurs 4 sont placés verticalement le long des parois coffrantes (1, 2) pour assurer la rigidité du coffrage. Il est à noter que les premiers et derniers raidisseurs doivent être disposés près des extrémités des parois (1, 2) afin de conserver le parallélisme desdites parois sur toute leur longueur après le coulage du béton. En effet, l'absence de raidisseur à ces endroits peut entraíner l'écartement des parois à leur extrémité sous la pression du béton.Stiffeners 4 are placed vertically along the shuttering walls (1, 2) to ensure the rigidity of the formwork. It should be noted that the first and last stiffeners must be placed near the ends of the walls (1, 2) in order to preserve the parallelism of said walls over their entire length after pouring the concrete. In effect, the absence of a stiffener in these places can cause the spacing of the walls to their end under the pressure of concrete.

Les éléments de liaison (3, 3') séparant les parois coffrantes sont articulés aux parois (1, 2) et fixés à celles-ci au moyen d'attaches et d'entretoises adéquates.The connecting elements (3, 3 ') separating the formwork walls are articulated to walls (1, 2) and fixed to them by means of suitable fasteners and spacers.

Les raidisseurs (4) se présentent sous la forme de profilés en U dont l'ouverture est dirigée vers l'espace séparant les parois coffrantes. Un raidisseur d'une paroi est décalé par rapport à celui qui se trouve vis-à-vis de façon à ce que les axes de symétrie (a, a') de la section du profilé en U de chaque raidisseur passe entre les deux côtés latéraux du raidisseur d'en face. La distance séparant les axes de symétrie a et a' correspond au décalage (d) des raidisseurs. The stiffeners (4) are in the form of U-shaped profiles, the opening of which is directed towards the space separating the formwork walls. A wall stiffener is offset from the one opposite so that the axes of symmetry (a, a ') of the section of the U-profile of each stiffener passes between the two lateral sides of the stiffener opposite. The distance between the axes of symmetry a and a 'corresponds to the offset (d) of the stiffeners.

Le rôle de ce décalage est illustré par la figure 2 qui montre le coffrage plié. Grâce aux articulations des éléments de liaison (3, 3'), le coffrage se plie par rabattement des éléments de liaison (3, 3') contre les faces intérieures des parois (1, 2).The role of this offset is illustrated in Figure 2 which shows the folded formwork. grace at the joints of the connecting elements (3, 3 '), the formwork folds by folding connecting elements (3, 3 ') against the inner faces of the walls (1, 2).

Les articulations des éléments de liaison sont situées entre les raidisseurs (4) et la paroi coffrante (1, 2) sur un segment horizontal (5) desdits éléments et parallèle à ladite paroi. Lors du pliage du coffrage, le segment (5) tourne autour de son axe longitudinal.The joints of the connecting elements are located between the stiffeners (4) and the shuttering wall (1, 2) on a horizontal segment (5) of said elements and parallel to said wall. When folding the formwork, the segment (5) rotates around its axis longitudinal.

Le décalage d'un raidisseur (4) avec son vis-à-vis permet à un côté latéral de chaque raidisseur (4) de pénétrer entre les côtés latéraux de celui d'en face.The offset of a stiffener (4) with its opposite allows a lateral side of each stiffener (4) to penetrate between the lateral sides of the opposite one.

Afin d'éviter que les côtés latéraux des raidisseurs (4) touchent les segments des éléments de liaison (3, 3') traversant l'espace séparant les parois coffrantes (1, 2), une fois le coffrage plié, le segment horizontal (5) articulé a une longueur supérieure à la largeur du raidisseur (4). De plus, ce segment (5) est décalé d'une distance (d') par rapport au raidisseur (4). Cette distance (d') correspond au moins au décalage (d) de l'axe (a) d'un raidisseur (4) avec l'axe (a') de son vis-à-vis. Autrement dit, le raidisseur (4) est décentré sur le segment horizontal (5) de l'élément de liaison (3, 3').In order to prevent the lateral sides of the stiffeners (4) from touching the segments of the connecting elements (3, 3 ') passing through the space separating the formwork walls (1, 2), once the formwork is folded, the horizontal articulated segment (5) has a longer length to the width of the stiffener (4). In addition, this segment (5) is offset by a distance (d ') relative to the stiffener (4). This distance (d ') corresponds at least to the offset (d) of the axis (a) of a stiffener (4) with the axis (a ') of its opposite. In other words, the stiffener (4) is off-center on the horizontal segment (5) of the connecting element (3, 3 ').

La figure 3 illustre un coffrage renforcé par des éléments d'armature (6) introduits dans l'espace séparant les parois coffrantes (1, 2) et entre les cotés latéraux de deux raidisseurs se faisant face. Chaque élément d'armature comprend au moins une barre verticale et au moins deux traverses horizontales ajustées pour glisser à l'intérieur du profil en U des raidisseurs.Figure 3 illustrates a formwork reinforced by reinforcing elements (6) introduced in the space separating the formwork walls (1, 2) and between the lateral sides of two facing stiffeners. Each reinforcing element comprises at least one vertical bar and at least two horizontal cross members adjusted to slide at inside the U-profile of the stiffeners.

Le décalage de deux raidisseurs situé l'un en face de l'autre est déterminé par deux paramètres principaux:

  • La section des barres constituant les traverses horizontales des éléments d'armature. Ces derniers doivent pouvoir être insérés aisément dans les raidisseurs.
  • L'épaisseur et la forme des côtés latéraux des profilés en U des raidisseurs. Le coffrage doit pouvoir être plié de façon qu'un côté latéral d'un raidisseur s'emboíte complètement entre les côtés latéraux du raidisseur d'en face.
The offset of two stiffeners located opposite each other is determined by two main parameters:
  • The section of the bars constituting the horizontal crosspieces of the reinforcing elements. These must be able to be easily inserted into the stiffeners.
  • The thickness and shape of the lateral sides of the U-profiles of the stiffeners. The formwork must be able to be folded so that a lateral side of a stiffener fits completely between the lateral sides of the opposite stiffener.

La présente invention se rapporte également à un mur dans lequel un coffrage à raidisseurs décalés ou en quinconce est utilisé. Le béton est coulé entre les parois coffrante dont la structure en grillage joue un rôle de filtre évacuant l'eau. Le coffrage ainsi enrobé et noyé dans béton constitue une armature garantissant une grande robustesse au mur.The present invention also relates to a wall in which a formwork with staggered or staggered stiffeners are used. Concrete is poured between the walls formwork, the mesh structure of which acts as a water-draining filter. The formwork thus embedded and embedded in concrete constitutes a reinforcement guaranteeing a large robustness to the wall.

Claims (6)

Coffrage pliable pour mur en béton comportant deux parois coffrantes (1, 2) parallèles placées l'une en face de l'autre et connectées par des éléments de liaison (3, 3') articulés aux parois coffrantes (1, 2) par des barres profilées en forme générale de U solidaires des parois coffrantes (1, 2) par l'intermédiaire de raidisseurs (4) verticaux, l'ouverture du U étant dirigée vers la paroi coffrante située en face, caractérisé en ce qu'un raidisseur (4) d'une paroi coffrante (1, 2) est décalé par rapport au raidisseur correspondant se trouvant vis-à-vis sur la paroi coffrante d'en face, le décalage permettant à un côté latéral d'un raidisseur de pénétrer entre les côtés latéraux du raidisseur situé en face lors du pliage du coffrage.Foldable formwork for concrete wall comprising two parallel formwork walls (1, 2) placed one opposite the other and connected by connecting elements (3, 3 ') articulated to the formwork walls (1, 2) by profiled bars in a general U-shape secured to the formwork walls (1, 2) by means of vertical stiffeners (4), the opening of the U being directed towards the formwork wall situated opposite, characterized in that a stiffener ( 4) a formwork wall (1, 2) is offset relative to the corresponding stiffener located opposite on the opposite formwork wall, the offset allowing a lateral side of a stiffener to penetrate between the lateral sides of the stiffener located opposite when the formwork is folded. Coffrage selon la revendication 1, caractérisé en ce que les axes de symétrie (a, a') de la section du profilé en U de chaque raidisseur passe entre les deux côtés latéraux du raidisseur d'en face, la distance séparant lesdits axes de symétrie a et a' correspond au décalage d des raidisseurs.Formwork according to claim 1, characterized in that the axes of symmetry (a, a ') of the section of the U-shaped section of each stiffener passes between the two lateral sides of the stiffener opposite, the distance separating said axes of symmetry a and a 'corresponds to the offset d of the stiffeners. Coffrage selon la revendication 1, comprenant au moins un élément de liaison (3, 3') constitué d'une pluralité de segments traversant l'espace séparant les parois coffrantes et de segments horizontaux (5) articulés fixés aux parois coffrantes (1, 2) et aux raidisseurs (4), caractérisé en ce que la longueur des segments horizontaux (5) excède la largeur des raidisseurs (4), lesdits segments horizontaux (5) sont décalés d'une distance fixe (d') par rapport au raidisseur (4).Formwork according to claim 1, comprising at least one connecting element (3, 3 ') consisting of a plurality of segments crossing the space separating the formwork walls and of horizontal articulated segments (5) fixed to the formwork walls (1, 2 ) and to the stiffeners (4), characterized in that the length of the horizontal segments (5) exceeds the width of the stiffeners (4), said horizontal segments (5) are offset by a fixed distance (d ') relative to the stiffener (4). Coffrage selon les revendications 1 à 3, caractérisé en ce que le décalage (d) d'un raidisseur (4) d'une paroi coffrante (1, 2) par rapport à son vis-à-vis sur la paroi coffrante (1, 2) d'en face correspond au moins au décalage (d') d'un segment horizontal (5) d'un élément de liaison (3, 3') par rapport au raidisseur (4).Formwork according to claims 1 to 3, characterized in that the offset (d) of a stiffener (4) of a formwork wall (1, 2) relative to its opposite on the formwork wall (1, 2) opposite corresponds at least to the offset (d ') of a horizontal segment (5) of a connecting element (3, 3') relative to the stiffener (4). Coffrage selon les revendications 1 à 4 caractérisé en ce qu'il comporte au moins un élément d'armature (6) introduit dans l'espace séparant les parois coffrantes (1, 2), ledit élément d'armature comprend au moins une barre verticale et au moins deux traverses horizontales ajustées pour glisser à l'intérieur du profil en U de deux raidisseurs (4) se faisant face. Formwork according to claims 1 to 4 characterized in that it comprises at least one reinforcing element (6) introduced into the space separating the formwork walls (1, 2), said reinforcing element comprises at least one vertical bar and at least two horizontal cross members adjusted to slide inside the U-profile of two stiffeners (4) facing each other. Coffrage selon les revendications 1 à 5 caractérisé en ce que le décalage d de deux raidisseurs situé l'un en face de l'autre sur chaque paroi coffrante est déterminé par la section des barres constituant les traverses horizontales des éléments d'armature (6) et par l'épaisseur et la forme des côtés latéraux des profilés en U des raidisseurs (4).Formwork according to claims 1 to 5 characterized in that the offset d of two stiffeners located one opposite the other on each formwork wall is determined by the section of the bars constituting the horizontal crosspieces of the reinforcing elements (6) and by the thickness and the shape of the lateral sides of the U-shaped profiles of the stiffeners (4).
EP02026550A 2002-11-28 2002-11-28 Foldable formwork for a concrete wall Withdrawn EP1424452A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02026550A EP1424452A1 (en) 2002-11-28 2002-11-28 Foldable formwork for a concrete wall
AU2003279490A AU2003279490A1 (en) 2002-11-28 2003-11-26 Folding formwork for a concrete wall
PCT/IB2003/005519 WO2004048713A1 (en) 2002-11-28 2003-11-26 Folding formwork for a concrete wall

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02026550A EP1424452A1 (en) 2002-11-28 2002-11-28 Foldable formwork for a concrete wall

Publications (1)

Publication Number Publication Date
EP1424452A1 true EP1424452A1 (en) 2004-06-02

Family

ID=32241300

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02026550A Withdrawn EP1424452A1 (en) 2002-11-28 2002-11-28 Foldable formwork for a concrete wall

Country Status (3)

Country Link
EP (1) EP1424452A1 (en)
AU (1) AU2003279490A1 (en)
WO (1) WO2004048713A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003407C2 (en) * 2009-08-28 2011-03-01 Unda Maris Holding N V BUILDING ELEMENT.
WO2015084284A1 (en) * 2013-12-06 2015-06-11 Hobi̇ Endüstri̇yel Tasarim Ürün Tasarim Uygulama Üreti̇m İthalat İhracat Li̇mi̇ted Şi̇rketi̇ Foldable brick with rope attachments and detachable wall building system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106978899B (en) * 2017-05-17 2022-10-21 浙江宝杰环保科技有限公司 Alloy template convenient to clean

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1207240A1 (en) * 2000-11-13 2002-05-22 Pumila-Consultadoria e Servicios Ltda. Formwork for a concrete wall that also serves as reinforcement

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002002895A2 (en) 2000-06-30 2002-01-10 Alpha Security Products, Inc. Security storage container

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1207240A1 (en) * 2000-11-13 2002-05-22 Pumila-Consultadoria e Servicios Ltda. Formwork for a concrete wall that also serves as reinforcement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003407C2 (en) * 2009-08-28 2011-03-01 Unda Maris Holding N V BUILDING ELEMENT.
WO2011025373A1 (en) * 2009-08-28 2011-03-03 Unda Maris Holding N.V. Construction element
WO2015084284A1 (en) * 2013-12-06 2015-06-11 Hobi̇ Endüstri̇yel Tasarim Ürün Tasarim Uygulama Üreti̇m İthalat İhracat Li̇mi̇ted Şi̇rketi̇ Foldable brick with rope attachments and detachable wall building system
CN106062291A (en) * 2013-12-06 2016-10-26 霍比工业产品设计生产与应用进出口有限公司 Foldable brick with rope attachments and detachable wall building system
US9828769B2 (en) 2013-12-06 2017-11-28 Hobi Endüstriyel Ürün Tasarim Uygulama Üretim Ithalat Ihracat Limited Sirketi Foldable brick with rope attachments and detachable wall building system

Also Published As

Publication number Publication date
WO2004048713A1 (en) 2004-06-10
AU2003279490A1 (en) 2004-06-18
AU2003279490A8 (en) 2004-06-18

Similar Documents

Publication Publication Date Title
EP1644592B1 (en) High-strength concrete wall formwork
EP2369076B1 (en) Lightweight dwelling module and modular building
FR2951207A1 (en) FOLDING, CLOSED AND CONSTRUCTING FOLDING BEAM INCLUDING SUCH BEAM
EP0392894A1 (en) Underground tubular construction and method for its construction
EP1424452A1 (en) Foldable formwork for a concrete wall
FR2954370A1 (en) Platform e.g. balcony, for use on facade of construction i.e. dwelling, has peripheral frame whose rear cross-piece is formed by aluminum shaped beam that is provided with gutter, where frame is extended from facade in cantilever manner
FR2609488A1 (en) Extendable formwork panel
FR2675181A1 (en) Permanent form structure for a load-bearing partition, and method for constructing a load-bearing partition with such a structure
FR2626922A1 (en) VARIABLE HEIGHT FORMWORK FOR A DOOR BAY OR SIMILAR OPENING PRACTICED IN A BUILDING WALL
FR3036419A1 (en) REINFORCING BEAM FOR WALL FORMWORK OF SWIMMING WALL
FR2900672A1 (en) Dwelling module for forming e.g. prefabricated single-family house, has base constituted of reinforced concrete slab, where slab has lower surface including connection beams extending from one side to another side of retaining beam
WO2015186103A1 (en) Metal structure for a building and building, for example intended for livestock farming, provided with such a structure
FR3033584B1 (en) MODULAR CONSTRUCTION FROM PREFABRICATED ELEMENTS
FR2985753A1 (en) Window bay formwork i.e. dummy, for use between form panels to form e.g. French window, in cast concrete wall of building, has integrated railing including foundation bolts extending through housings or notches for being sealed in concrete
EP1921227A1 (en) Modular structure for producing a wall subjected to horizontal pressure when in use, in particular the peripheral wall of a pond
WO2004079131A1 (en) Panel for civil engineering works, particularly swimming pools, and construction method using such panels
FR2994205A1 (en) Method for constructing walls of basin of swimming pool by concrete casting, involves forming space between plates to carry out bracing and propping operations in formwork shuttering, and forming covering element parallel to shuttering
FR2812323A1 (en) Prefabricated concrete swimming pool is composed of two longitudinal elements forming vertical wall and bottom wall portion having longitudinal rabbet fitting rabbet in bottom slab forming pool bottom and two end elements
FR2883017A1 (en) Telescopic type swimming pool shelter, has covering sections whose dimensions are adapted so that each section is received in following section, where sections have flat panels, respectively, connected by fixation devices
FR2718776A1 (en) Shuttering panel for concrete
BE899065A (en) Construction procedure for vertical structure - has light stackable small dimension parts forming shuttering for e.g. concrete construction
FR2808543A1 (en) Shuttering element for raising level of wall with concrete is made from folded sheet cardboard or plastic with supports for reinforcing rods
FR2809430A1 (en) Formwork and facing framework, for forming concrete wall, comprises ladder structure and canvas support and spacers which separate structure from canvas
FR2948397A1 (en) SHELTER OF SWIMMING POOL
FR2830558A1 (en) Foldable bungalow comprises lower rectangular frame with corner uprights and removable corner posts and wall elements articulated by lower edge on upper edge of string connecting uprights

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

AKX Designation fees paid
REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20041019