EP4063589B1 - Élément de coffrage pour une construction en béton, procede de production un tel coffrage et un procede de coffrage - Google Patents

Élément de coffrage pour une construction en béton, procede de production un tel coffrage et un procede de coffrage Download PDF

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Publication number
EP4063589B1
EP4063589B1 EP22163967.7A EP22163967A EP4063589B1 EP 4063589 B1 EP4063589 B1 EP 4063589B1 EP 22163967 A EP22163967 A EP 22163967A EP 4063589 B1 EP4063589 B1 EP 4063589B1
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EP
European Patent Office
Prior art keywords
formwork
base
sections
base element
stop end
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Active
Application number
EP22163967.7A
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German (de)
English (en)
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EP4063589A1 (fr
Inventor
Robert Grüdl
Markus Heudorfer
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Max Frank GmbH and Co KG
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Max Frank GmbH and Co KG
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Publication of EP4063589A1 publication Critical patent/EP4063589A1/fr
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/36—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for floors, ceilings, or roofs of plane or curved surfaces end formpanels for floor shutterings
    • E04G11/365—Stop-end shutterings
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/20—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups of material other than metal or with only additional metal parts, e.g. concrete or plastics spacers with metal binding wires
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
    • E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
    • E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
    • E04G11/085—End form panels for walls
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G9/00—Forming or shuttering elements for general use
    • E04G9/02—Forming boards or similar elements
    • E04G9/06—Forming boards or similar elements the form surface being of metal
    • E04G9/065—Forming boards or similar elements the form surface being of metal the form surface being of wire mesh

Definitions

  • the invention relates to a formwork element for concrete construction.
  • Spacers are used in reinforced concrete construction to keep reinforcement at a specified distance from the surface of the concrete part to be produced.
  • rod-shaped spacers that are placed on the existing formwork and onto which the reinforcement is then placed before the actual concreting process begins.
  • the EP 735 213 B1 describes a shuttering element made from pieces of formwork material of a predetermined size.
  • the pieces of formwork material are arranged in a comb-like manner at a distance from one another and are connected to one another at one of their edges by a handle bar, whereby a large number of openings open on one side are formed.
  • These openings have a width corresponding to the width of the reinforcing bars and a distance corresponding to the distance between adjacent reinforcing bars, so that every reinforcement task, in particular different distances between the reinforcing bars, can be easily taken into account.
  • This shuttering element is used as a spacer between the reinforcement and formwork in large-area concreting sections.
  • Formwork elements with fiber-reinforced concrete strips and pieces of formwork material inserted into the fiber-reinforced concrete strips are also known.
  • the pieces of formwork material are spaced apart from one another and thus form openings that have a width corresponding to the width of the reinforcement bars and a distance corresponding to the distance between adjacent reinforcement bars.
  • These formwork elements therefore ensure the correct concrete cover of the lower reinforcement layer on the one hand and formwork the area of the lower reinforcement layer on the other.
  • This type of formwork element is described in the DE 20 2009 005 195 U1 , the EN 20 2011 051 320 U1 and in the DE 93 01 565 U1 .
  • the WO 2005/047624 A1 a formwork element with a base section and a plurality of formwork sections of predetermined size formed by cuts running parallel to each other and perpendicular to the base section. Individual formwork sections are used to insert reinforcing iron bent over.
  • the object of the invention is to provide a formwork element that can be produced simply and inexpensively for use as permanent formwork, which can be used as universally as possible on the construction site.
  • This object is achieved according to the invention by the formwork element according to independent patent claim 1. Further advantageous aspects, details and embodiments of the invention emerge from the dependent claims, the description and the drawings.
  • the formwork sections then extend essentially parallel to the subsurface on which the formwork element is arranged.
  • the term "subsurface” is understood in the context of the present application to mean any type of surface on which the base element can be arranged. "Subsurface” is therefore in particular not only a surface running parallel to the earth's surface, but also any type of inclined running surface and any kind of vertically arranged surface, i.e. any kind of wall.
  • the formwork elements for concrete construction according to the invention are based on a base element and a formwork element connected to the base element.
  • the connection is made in such a way that the formwork element is inserted with one of its edge areas into the slot-like recess in the base element.
  • a permanent, firm and permanent connection is created between the base element and the formwork element either with the help of an adhesive or by means of a clamp fit.
  • the formwork element has a plurality of cuts in its section protruding from the base element, whereby a plurality of formwork sections are formed, all of which have a common predetermined size. These formwork sections do not protrude from the base element in a vertical direction, but are bent at a right angle relative to the base section. The formwork sections then extend essentially parallel to the substrate on which the formwork element is arranged. At the same time, the formwork sections protruding from the base element run essentially parallel to the surface of the base element having the slot-like recess.
  • formwork elements In a subsequent work step, when the formwork element is installed on the construction site, individual reinforcement bars or entire reinforcement mats are placed on the formwork elements.
  • the formwork elements according to the invention therefore determine the thickness of the concrete cover of the reinforcement through the dimensioning of the base element.
  • a particular advantage of the shuttering element according to the invention is that the reinforcement elements can be placed on the shuttering element at any distance from one another. This is possible because the formwork sections extend essentially parallel to the substrate on which the shuttering element is arranged. In a next step, all formwork sections on which no reinforcement element rests are bent upwards and then protrude vertically from the base element relative to the substrate.
  • the shuttering element can therefore be used with any distance between the reinforcement elements. If the formwork sections have a width of 30 mm, for example, and a first reinforcement bar is 15 cm away from a second, the four formwork sections arranged between the reinforcement bars are bent upwards. If the distance between the second and a third reinforcement bar is 18 cm, for example, the five formwork sections arranged between these reinforcement bars are bent upwards. bent. In this way, essentially any distance between the reinforcement elements can be covered by a single formwork element.
  • a further advantage of the shuttering elements according to the invention is that uncontrolled trampling of the formwork sections protruding from the base element is no longer possible, since these are bent at a 90° angle and run essentially parallel to the subsurface.
  • the formwork parts protrude vertically upwards and are often trampled on when the reinforcement elements are laid.
  • the formwork elements according to the invention make laying a mesh reinforcement much easier because the bars of the mesh do not have to be placed in the gaps between the individual formwork sections at the same time. Instead, the mesh can simply be laid down first and positioned more precisely if necessary. Only then are the individual formwork sections bent upwards between the bars of the reinforcement mesh.
  • the shuttering elements according to the invention make it possible to lay rolled reinforcement.
  • the reinforcement can simply be placed on the bent formwork sections. Only then are the individual formwork sections bent upwards between the bars of the reinforcement elements.
  • the shuttering elements according to the invention can also be installed after the reinforcement has been laid, which was not possible until now.
  • the reinforcement of a concrete layer is fixed as usual by surface spacers at a certain height above the formwork. Due to the formwork sections being bent at a 90° angle and running essentially parallel to the subsurface, the shuttering element according to the invention can be subsequently pushed under the reinforcement.
  • the above-mentioned advantages of the shuttering elements according to the invention can be realized in every possible installation situation, i.e. when shuttering a floor slab, a ceiling or a wall.
  • the formwork sections are bolted to reinforcement elements or formwork elements that have already been laid.
  • the base element consists of a cement-bonded material, in particular fiber concrete.
  • the base section of the formwork element is firmly bonded to the base element in the area of the slot-like recess of the base element by means of an adhesive, in particular hot melt adhesive.
  • the cement-bound material is preferably fiber concrete.
  • Fiber concrete is a particularly suitable material because it is impermeable to water, does not represent a foreign body in the concrete and therefore cracks in the concrete are avoided.
  • the use of fiber concrete as a material for the base element allows for particularly simple and cost-effective production, for example by extruding a corresponding profile strand.
  • Such a profile strand can have almost any cross-section, which makes it possible to produce base elements with, for example, a rectangular, square or triangular cross-section.
  • base elements of any length can be cut from the profile strand. This can be done when wet by simply cutting it through with a taut wire or when dry by sawing through the profile strand.
  • the base element made of a cement-bound material, in particular fiber-reinforced concrete has a triangular, rectangular or square shape in section perpendicular to the longitudinal axis of the base element.
  • the various shapes of the base element can basically be manufactured in any desired dimensions. This results in a high degree of flexibility with regard to the thickness of the concrete cover.
  • the base element defines the distance between the reinforcement and the formwork and thus determines the thickness of the concrete cover of the reinforcement. The thickness of the concrete cover can therefore be varied directly via the dimensions of the base element.
  • the adhesive is preferably a hot melt adhesive.
  • Hot melt adhesives which are also referred to as hot glue or hot melt adhesive, are solvent-free products that are more or less solid at room temperature. They are applied to the adhesive surface while hot and form a bond when they cool down. Hot melt adhesives are available in granular form, as powder, as film or as sticks, but are usually used as granules in connection with the present invention.
  • the hot melt adhesive granulate is heated and, after liquefaction, is filled into the slot-like recess of the base element.
  • the formwork element is placed into the slot-like recess and thus pressed into the hot melt adhesive.
  • the hot melt adhesive solidifies and ensures a permanent and firm connection between the base element and the formwork element.
  • the slot-like recess of a base element made of a cement-bound material, in particular fiber-reinforced concrete can basically have any shape.
  • the only condition that needs to be met is that the edge area of the formwork element can be easily inserted into the recess.
  • the recess should also have at least a minimally larger volume than the edge area of the formwork element, since a certain amount of hot melt adhesive is introduced into the recess in addition to the edge area.
  • the exact shape of the recess is not specified, however, and leaves a wide variety of variants open.
  • the base element consists of a plastic, in particular of polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene or a recycled plastic material.
  • connection between the base element and the formwork element is made using a clamp fit.
  • the formwork element is simply inserted into the base element and connected to it using a clamp fit. This avoids the time-consuming and costly process of gluing the formwork element and the base element.
  • a base element made of plastic results in particularly positive properties in connection with the intended application of the formwork according to the invention.
  • the plastic and thus the base element are well bonded to the surrounding in-situ concrete.
  • plastics have a certain elasticity, which means that the formwork element can be pushed into the slot-like recess with relatively little effort, but at the same time is held securely in a clamped fit by the walls of the slot-like recess.
  • the slot-like recess preferably runs perpendicular to the surface of the base element intended for setting up on a base.
  • the base element is preferably made of one of the plastics polyethylene, polyvinyl chloride, acrylonitrile-butadiene-styrene or of a reused plastic, i.e. of a plastic recycling material.
  • the materials mentioned have particularly positive properties in connection with the intended use of the formwork according to the invention. On the one hand, there is a very good connection to the surrounding in-situ concrete. On the other hand, the materials mentioned have good elasticity, whereby the formwork element can be inserted into the slot-like recess, but at the same time is held securely in the clamping fit by the walls of the slot-like recess.
  • a base element made of plastic is triangular, rectangular, square or T-shaped in section perpendicular to the longitudinal axis of the base element.
  • the various shapes of the base element can be manufactured in basically any dimension. This results in a high degree of flexibility with regard to the thickness of the concrete cover.
  • the base element defines the distance between the reinforcement and the formwork and thus determines the thickness of the concrete cover of the reinforcement. The thickness of the concrete cover can thus be varied directly via the dimensioning of the base element.
  • the base elements are placed on a base with the surface opposite the slot-like recess.
  • the slot-like recess is provided in the vertical beam of the T, while the horizontal beam is placed on the base.
  • the formwork element is inserted into the slot-like recess.
  • the formwork element is thus securely and permanently connected to the base element in a clamp fit.
  • the slot-like recess of a plastic base element can basically have any shape.
  • the only condition that needs to be met is that the edge area of the formwork element can be inserted into the recess without great effort and that the walls of the recess have sufficient elasticity to fix the formwork element securely and permanently in the clamped fit.
  • the two walls of the slot-like recess of a base element made of plastic each have at least one nose-like projection that extends into the recess.
  • These nose-like projections which are particularly preferably oriented in the direction of the surface of the base element intended for placement on a base, produce a barb effect.
  • the formwork element which is inserted into the slot-like recess with its edge area, is held in the slot-like recess in a clamping fit.
  • the nose-like projections prevent the formwork element from accidentally falling out of the slot-like recess.
  • the nose-like projections can basically have any shape. Preferably, they essentially have the shape of a straight prism with a triangular base. One edge of the prism is preferably directed in the direction of the a base surface of the base element, which creates the barb effect mentioned above.
  • the specific shape of the nose-like projections can be selected taking into account the type of formwork element that is inserted into the slot-like recess and the expected concrete pressure.
  • the formwork element preferably consists of a perforated metal sheet.
  • the perforations are advantageously chosen to be large enough on the one hand to ensure that the concrete slurry passing through them creates a durable and permanent connection between the concrete of the two adjacent concreting sections, but on the other hand the perforations are not so large that the concrete of the first concreting section can flow through the openings.
  • the formwork element particularly preferably consists of an expanded metal panel or a perforated sheet. These types of formwork elements have proven to be particularly suitable.
  • the formwork sections of the formwork element have an extension between 17.0 and 17.2 mm, in particular 17.1 mm, or an extension between 29.9 and 30.1 mm, in particular 30.0 mm, in a direction parallel to the longitudinal axis of the base element.
  • a particular advantage of the shuttering element according to the invention is that the reinforcement elements can be placed on the shuttering element at any distance from one another. All formwork sections on which no reinforcement element is resting are then bent back into their original position and then protrude vertically from the base element relative to the subsurface. The shuttering element can therefore be used with any distance between the reinforcement elements.
  • the formwork element should close off the corresponding concreting section as seamlessly as possible. This is particularly advantageous if the width of the individual formwork sections is adapted to the diameter of the reinforcement elements.
  • the vast majority of reinforcement bars have diameters of 10 mm, 12 mm, 14 mm, 16 mm, 20 mm, 25 mm, 28 mm, 32 mm, 40 mm or 50 mm.
  • reinforcement bars with a diameter of 10 mm, 12 mm, 14 mm, 16 mm and 32 mm can be used.
  • a reinforcement bar with a diameter of 32 mm rests on two formwork sections.
  • reinforcing bars with a diameter of 20 mm, 25 mm, 28 mm, 40 mm and 50 mm can be used. Reinforcing bars with a diameter of 40 mm or 50 mm each rest on two formwork sections.
  • step c) the base element is additionally glued to the formwork element in the area of the slot-like recess in the base element. This creates a stable and permanent connection between the base element and the formwork element.
  • base elements made of plastic the flexibility of the plastic material is sufficient for this in most cases, as described above.
  • step e) of fastening the formwork parts to the formwork sections is carried out.
  • the shuttering elements according to the invention can also be installed after the reinforcement has been laid, which was not possible before.
  • the reinforcement of a concrete layer is fixed as usual by surface spacers at a certain height above the formwork. Due to the formwork sections being bent at a 90° angle and running essentially parallel to the subsurface, the shuttering element according to the invention can be subsequently pushed under the reinforcement.
  • the formwork sections are attached to the elongated reinforcement elements and/or the formwork parts.
  • the formwork sections are attached to reinforcement elements or formwork elements that have already been laid, in particular to tie them in place.
  • the elongated reinforcement elements are preferably reinforcement bars.
  • the elongated reinforcement elements are also preferably designed as parts of a mesh reinforcement or a roll reinforcement.
  • the laying of a mesh reinforcement is made significantly easier by using formwork elements according to the invention, because the bars of the mesh do not have to be placed simultaneously in the gaps between the individual formwork sections. Instead, the mesh can simply be laid down first and positioned more precisely if necessary. Only then are the individual formwork sections bent upwards between the bars of the reinforcement mesh.
  • the Figure 1A shows an elongated base element 1 with a longitudinal axis LA.
  • the base element 1 of length L is made of plastic and is T-shaped in section perpendicular to the longitudinal axis LA.
  • the base element 1 has a slot-like recess 3, which is intended to accommodate the base section of a formwork element.
  • the slot-like recess of the base element 1 can basically have any shape.
  • the figure shows a base element 1 that is also used for a number of other forms of spacers. This profile can also be used within the scope of the present invention, but does not represent any prerequisite for the functionality of the formwork element according to the invention.
  • the Figure 1B shows a formwork element 2, which in the embodiment shown is designed as an expanded metal panel.
  • the formwork element 2 has the same length L as the base element 1.
  • the Figure 1C shows the formwork element 2 with its lower edge area inserted into the slot-like recess 3 of the base element 1. Since the base element 1 is made of plastic, a permanent, firm and permanent connection between the base element 1 and the formwork element 2 can be made by means of a clamp fit. If the base element 1 is made of fiber concrete, the formwork element is glued into the slot-like recess 3 of the base element 1 using an adhesive.
  • the formwork element 2 is subsequently cut at predetermined intervals in a direction perpendicular to the longitudinal axis LA of the base element 1. This forms a plurality of formwork sections 2.S1, 2.S2, ... 2.Sn, which all have a common predetermined width A and protrude in the vertical direction from the base element 1. This situation is in the Figure 2A shown.
  • Figures 2A and 2B show a standard base element 1 made of fiber concrete, which is also used for a number of other forms of spacers.
  • This standard profile can also be used within the scope of the present invention, but does not represent any prerequisite for the functionality of the formwork element according to the invention.
  • formwork sections 2.S1, 2.S2, ... 2.Sn are bent about an axis parallel to the longitudinal axis LA of the base element 1 in such a way that the formwork sections 2.S1, 2.S2, ... 2.Sn of the formwork element 2 each enclose an angle of around 90° with their base section 2.B, i.e. the section of the formwork element 2 that is inserted into the slot-like recess 3 of the base element 1.
  • the formwork sections 2.S1, 2.S2, ... 2.Sn then extend essentially parallel to the substrate on which the formwork element is arranged.
  • the formwork sections 2.S1, 2.S2, ... 2.Sn protruding from the base element 1 run essentially parallel to the surface 1.0 of the base element 1 that has the slot-like recess 3. This situation is in the Figure 2B shown.
  • Figure 2B thus shows an embodiment of a shuttering element according to the invention for concrete construction
  • an elongated base element 1 intended for setting up on a substrate with a longitudinal axis LA and a formwork element 2 extending over the entire length L of the base element 1, wherein the formwork element 2 has a base section 2.B and a plurality of formwork sections 2.S1, 2.S2, 2.Sn of a predetermined size, wherein the base element 1 has a slot-like recess 3 for receiving the base section 2.B of the formwork element 2, wherein the base section 2.B of the formwork element 2 is firmly connected to the base element 1 in the region of the slot-like recess 3 of the base element 1, wherein the formwork sections 2.S1, 2.S2, 2.Sn of the formwork element 2 each enclose an angle of approximately 90° with the base section 2.B of the formwork element 2.
  • the reinforcement elements 7 can be placed on the shuttering element at a distance from one another that is segmented by the grid of the formwork sections 2.S1, 2.S2, 2.Sn, but in principle at any distance. This is possible because the formwork sections 2.S1, 2.S2, 2.Sn extend essentially parallel to the substrate on which the shuttering element is arranged.
  • the shuttering element can be used with any distance between the reinforcement elements 7.
  • the two reinforcing bars 7 are around 15 cm apart. If you wanted to achieve a distance of 18 cm between the reinforcing bars, for example, you would only have to place one reinforcing bar one formwork section further away from the other reinforcing bar. In this way, essentially any distance between the reinforcing elements can be covered by a single formwork element.
  • the Figure 4A The reinforcement bars 7 shown have a diameter of 20 mm.
  • the formwork sections 2.S1, 2.S2, 2.Sn have a width of 30 mm. The distance between two reinforcement bars in the embodiment shown is therefore 90 mm.
  • the Figure 4B The reinforcement bars 7 shown have a diameter of 16 mm.
  • the formwork sections 2.S1, 2.S2, 2.Sn have a width of 17 mm.
  • the distance between two reinforcement bars in the embodiment shown is therefore 85 mm.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
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Claims (14)

  1. Coffrage pour les constructions en béton, présentant un élément de base allongé (1) destiné à être installé sur un sol, avec un axe longitudinal (LA), et un élément de coffrage (2) s'étendant sur toute la longueur (L) de l'élément de base (1), dans lequel l'élément de coffrage (2) présente une section de base (2.B) et une pluralité de sections de coffrage (2.S1, 2.S2, 2.Sn) de taille prédéterminée, formées par des incisions s'étendant parallèlement les unes aux autres et perpendiculairement à la section de base (2.B), dans lequel l'élément de base (1) présente un évidement du genre fente (3) destiné à recevoir la section de base (2.B) de l'élément de coffrage (2), dans lequel la section de base (2.B) de l'élément de coffrage (2) est reliée fixement à l'élément de base (1) dans la région de l'évidement du genre fente (3) de l'élément de base (1), dans lequel toutes les sections de coffrage (2.S1, 2.S2, 2.Sn) de l'élément de coffrage (2) forment respectivement un angle d'environ 90° avec la section de base (2.B) de l'élément de coffrage (2).
  2. Coffrage selon la revendication 1, caractérisé en ce que l'élément de base (1) est constitué d'un matériau lié par du ciment, en particulier de béton fibreux, et la section de base (2.B) de l'élément de coffrage (2) est collée fixement à l'élément de base (1) par une colle, en particulier une colle thermofusible, dans la région de l'évidement du genre fente (3) de l'élément de base (1).
  3. Coffrage selon la revendication 1, caractérisé en ce que l'élément de base est constitué d'un plastique, en particulier de polyéthylène, de chlorure de polyvinyle, d'acrylonitrile butadiène styrol, ou d'une matière plastique recyclée.
  4. Coffrage selon l'une des revendications 1 à 3, caractérisé en ce que l'élément de base (1) est réalisé de façon triangulaire, rectangulaire ou carrée ou en forme de T dans la coupe perpendiculaire à l'axe longitudinal (LA) de l'élément de base (1).
  5. Coffrage selon l'une des revendications 1 à 4, caractérisé en ce que l'élément de coffrage (2) est constitué d'une tôle métallique ajourée, en particulier d'une plaque de métal déployé ou d'une tôle perforée.
  6. Coffrage selon l'une des revendications 1 à 5, caractérisé en ce que dans une direction parallèle à l'axe longitudinal (LA) de l'élément de base (1), les sections de coffrage (2.S1, 2.S2, 2.Sn) de l'élément de coffrage (2) présentent une extension (A) entre 17,0 et 17,2 mm, en particulier de 17,1 mm, ou une extension (A) entre 29,9 et 30,1 mm, en particulier de 30,0 mm.
  7. Procédé de fabrication d'un coffrage selon l'une des revendications 1 à 6, comprenant les étapes suivantes
    a) mise à disposition d'un élément de base allongé (1) ;
    b) mise à disposition d'un élément de coffrage (2) ;
    c) introduction d'une région de bord de l'élément de coffrage (2) dans l'évidement du genre fente (3) de l'élément de base (1) ;
    d) incision de l'élément de coffrage (2) pour former la pluralité de sections de coffrage (2.S1, 2.S2, 2.Sn), dans lequel l'incision est effectuée à des intervalles prédéterminés dans une direction perpendiculaire à l'axe longitudinal (LA) de l'élément de base (1),
    e) formation de la section de base (2.B) par flexion de la pluralité de sections de coffrage (2.S1, 2.S2, 2.Sn) autour d'un axe parallèle à l'axe longitudinal (LA) de l'élément de base (1), dans lequel la flexion est effectuée de telle façon que les sections de coffrage (2.S1, 2.S2, 2.Sn) de l'élément de coffrage (2) forment respectivement un angle d'environ 90° avec la section de base (2.B).
  8. Procédé selon la revendication 7, caractérisé en ce que dans l'étape c), un collage de l'élément de base (1) avec l'élément de coffrage (2) est également effectué dans la région de l'évidement du genre fente (3) de l'élément de base (1).
  9. Procédé de coffrage et de renforcement d'une couche de béton, comprenant les étapes suivantes :
    a) installation d'un coffrage selon l'une des revendications 1 à 6 sur un sol,
    b) pose d'éléments de renforcement allongés (7) sur l'élément de décoffrage, dans lequel la pose est effectuée de telle façon que les éléments de renforcement allongés (7) s'étendent essentiellement perpendiculairement à l'axe longitudinal (LA) de l'élément de base (1),
    c) flexion de la pluralité de sections de coffrage (2.S1, 2.S2, 2.Sn) autour d'un axe parallèle à l'axe longitudinal (LA) de l'élément de base (1), dans lequel la flexion est effectuée de telle façon que les sections de coffrage (2.S1, 2.S2, 2.Sn) de l'élément de coffrage (2) forment respectivement un angle d'environ 180° avec la section de base (2.B) et les sections de coffrage (2.S1, 2.S2, 2.Sn) s'étendent essentiellement verticalement au sol, dans lequel la flexion est réalisée exclusivement sur les sections de coffrage (2.S1, 2.S2, 2.Sn) exemptes de contact avec l'un des éléments de renforcement allongés (7),
    d) installation de parties de coffrage planaires, dans lequel les parties de coffrage chevauchent les sections de coffrage (2.S1, 2.S2, 2.Sn).
  10. Procédé selon la revendication 9, caractérisé en ce que l'étape d) est suivie de l'étape
    e) fixation des parties de coffrage aux sections de coffrage (2.S1, 2.S2, 2.Sn).
  11. Procédé de coffrage et de renforcement d'une couche de béton, comprenant les étapes suivantes :
    a) pose d'éléments de renforcement allongés,
    b) installation de parties de coffrage planaires,
    c) insertion d'un coffrage selon l'une des revendications 1 à 6 dans l'espace entre un sol et les éléments de renforcement allongés, dans lequel l'insertion est effectuée de telle façon que les éléments de renforcement allongés (7) s'étendent essentiellement perpendiculairement à l'axe longitudinal (LA) de l'élément de base (1), et dans lequel les parties de coffrage chevauchent les sections de coffrage (2.S1, 2.S2, 2.Sn),
    d) flexion de la pluralité de sections de coffrage (2.S1, 2.S2, 2.Sn) autour d'un axe parallèle à l'axe longitudinal (LA) de l'élément de base (1), dans lequel la flexion est effectuée de telle façon que les sections de coffrage (2.S1, 2.S2, 2.Sn) de l'élément de coffrage (2) forment respectivement un angle d'environ 180° avec la section de base (2.B) et les sections de coffrage (2.S1, 2.S2, 2.Sn) s'étendent essentiellement verticalement au sol, dans lequel la flexion est réalisée exclusivement sur les sections de coffrage (2.S1, 2.S2, 2.Sn) exemptes de contact avec l'un des éléments de renforcement allongés (7).
  12. Procédé selon la revendication 11, caractérisé en ce que l'étape d) est suivie de l'étape
    e) fixation des sections de coffrage (2.S1, 2.S2, 2.Sn) aux éléments de renforcement allongés et/ou aux parties de coffrage.
  13. Procédé selon l'une des revendications 9 à 12, caractérisé en ce que les éléments de renforcement allongés (7) sont des tiges de renforcement.
  14. Procédé selon l'une des revendications 9 à 12, caractérisé en ce que les éléments de renforcement allongés (7) sont réalisés comme des parties d'un renforcement en treillis ou d'un renforcement en rouleau.
EP22163967.7A 2021-03-25 2022-03-24 Élément de coffrage pour une construction en béton, procede de production un tel coffrage et un procede de coffrage Active EP4063589B1 (fr)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024697A1 (fr) * 1979-08-23 1981-03-11 SIGMA BAUELEMENTE GmbH Dispositif pour loger des barres d'armatures

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Publication number Priority date Publication date Assignee Title
DE3405187C2 (de) * 1983-10-28 1995-07-27 Carl Georg & Sohn Gmbh Co Kg Abziehbalken
CH679790A5 (en) * 1989-05-09 1992-04-15 Fehlmann Travaux Hydrauliques Shutter panel for concrete ground wall construction - water-bar used for joints between adjacent wall sections acting as slide to facilitate panel stripping
DE9301565U1 (de) 1993-02-04 1994-06-01 Peca-Verbundtechnik Gmbh, 84130 Dingolfing Schalungselement
DE29505305U1 (de) 1995-03-29 1996-07-25 Peca-Verbundtechnik Gmbh, 84130 Dingolfing Schalung
DE50009278D1 (de) 2000-01-19 2005-02-24 Sager Ag Duerrenaesch Armierungs-Distanzhalter zum Verlegen einer Lage von Armierungseisen gegenüber einer Schalung für die Herstellung einer Betonkonstruktion
NO319875B1 (no) * 2003-11-14 2005-09-26 Bent Habberstad Anordning for tetting av endesteng ved støping av betong
DE202005018481U1 (de) 2005-11-24 2006-04-27 Baron, Christian Schalungs- und Bewehrungsanordnung
DE202008016759U1 (de) 2008-12-18 2009-03-19 Fwr Solutions Gmbh Schalungselement
DE202009004861U1 (de) * 2009-05-26 2009-10-01 Peca-Verbundtechnik Gmbh Schalungselement
DE202009005195U1 (de) 2009-08-27 2009-11-12 Peca - Verbundtechnik Gmbh Abschalelement für den Betonbau
DE202011051320U1 (de) 2011-09-16 2011-10-28 Peca Verbundtechnik Gmbh Abschalelement für den Betonbau

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0024697A1 (fr) * 1979-08-23 1981-03-11 SIGMA BAUELEMENTE GmbH Dispositif pour loger des barres d'armatures

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