EP3070223B1 - Straight edge of a construction element and construction element comprising such an edge - Google Patents

Straight edge of a construction element and construction element comprising such an edge Download PDF

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Publication number
EP3070223B1
EP3070223B1 EP16160856.7A EP16160856A EP3070223B1 EP 3070223 B1 EP3070223 B1 EP 3070223B1 EP 16160856 A EP16160856 A EP 16160856A EP 3070223 B1 EP3070223 B1 EP 3070223B1
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EP
European Patent Office
Prior art keywords
cells
row
slab
slab according
edging strip
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EP16160856.7A
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German (de)
French (fr)
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EP3070223A1 (en
Inventor
Laurent Abric
Eric AITANTI
Yuraima Benoit
Thierry Haour
Frédéric Rey
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KP1 SAS
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KP1 SAS
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Priority to PL16160856T priority Critical patent/PL3070223T3/en
Publication of EP3070223A1 publication Critical patent/EP3070223A1/en
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    • 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
    • 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
    • E04B2005/322—Floor structures wholly cast in situ with or without form units or reinforcements with permanent forms for the floor edges

Definitions

  • the concrete for the compression slab is thus poured directly on the pre-slabs.
  • the structure comprises at least one row of cells in relief which are arranged side by side along the right and which extend from the structure towards the outside of the border to be intended for be facing a concrete body of the pre-slab.
  • the structure comprises at least one anchoring foot extending from a lower portion of the structure towards the outside of the border.
  • the border according to the first embodiment of the invention is rectilinear and extends along a straight line X.
  • the border 1 comprises a honeycomb structure 2 of plastic material which comprises cells in relief extending from the structure. 2 towards the outside of border 1.
  • the different cells 2 are here open towards the outside of border 1.
  • the structure 2 is for example made of polypropylene.
  • the structure 2 comprises a first row 3 of cells arranged side by side along the straight line X (one of the cells of the first row 3 being symbolized in dotted lines and designated by 4). All the cells of the first row 3 are joined here.
  • Structure 2 comprises a second row 5 of cells arranged side by side along the straight line X and contiguous two by two (one of the cells of the second row 5 being symbolized by dots and designated by 6), each block of two contiguous cells (one of the blocks being symbolized in dashes and designated by 7) being separated by a space 8 from the next block of two contiguous cells. Thanks to the different spaces 8, the structure 2 proves to be particularly flexible.
  • the second row 5 of cells extends below the first row 3 of cells so that a cell of the second row 5 is in the continuation of a respective cell of the first row 3.
  • the second row 5 of cells s 'therefore extends parallel to the first row 3 of cells.
  • the cells of the first row 3 are all identical to each other and the cells of the second row 5 are all identical to each other.
  • the cells of the first row 3 and the cells of the second row 5 have the same length (dimension taken along line X) and substantially the same width (dimension taken along a line Y perpendicular to the line X and corresponding to the relief of the cells).
  • the cells of the second row 5 have here a height greater than the cells of the first row 3 (dimension taken along a line Z perpendicular to line X and line Y).
  • the structure 2 comprises recesses 9 (only some of which are referenced) crossing the structure 2 in its width. More precisely here a recess 9 crosses the structure 2 at the level of each of the cells of the second row 5 and at the level of each space 8 separating the blocks of two contiguous cells.
  • the recesses 9 are arranged in the upper part of the cells of the second row 5 and associated spaces 8, substantially at the level of the border between the first row 3 of cells and the second row 5 of cells.
  • the border 1 comprises a magnet 17 which is arranged on the main face of the structure 1 opposite to that from which the cells extend. Magnet 17 is arranged so as to project from the rest of said main face. More precisely here, the magnet 17 is arranged below the various recesses 9 of the structure 2.
  • the edge 1 which has just been described is here intended to form a portion or all (depending on its length) of one of the longitudinal edges of a predalle 20, that is to say that the edge 1 is aligned so that the X axis is parallel to the associated longitudinal edge of the pre-slab 20.
  • the pre-slab 20 comprises a body 21 made of concrete.
  • the body 21 of the pre-slab 20 is here made of prestressed concrete and comprises prestressing cables 22 oriented longitudinally and parallel to each other along the X axis.
  • the edge 1 is installed in a manufacturing mold 30 of the body 21 of the pre-slab 20 while being positioned along one of the longitudinal edges of this mold 30.
  • the feet 12 then come to rest on a base of the manufacturing mold 30.
  • the feet 12 allow an operator to easily and quickly position the rim 1 correctly in the manufacturing mold 30 by serving as a registration point.
  • each tab 14 is positioned in the manufacturing mold 30 so as to extend just under the prestressing cables 22 arranged in the manufacturing mold 30 to be secured to the body 21 of the pre-slab 20.
  • the tabs 14 thus play. also the role of checkpoint for the operator.
  • the concrete is then poured into the manufacturing mold 30 to form the body 21 of the pre-slab 20.
  • the anti-fouling nozzles 11 make it possible to protect the clipping notches 10 during the casting of the body 21 of the pre-slab 20 and in particular concrete which could accidentally be thrown towards said clipping notches 10. This prevents concrete from freezing in the notches. clipping 10 which would be detrimental for a subsequent fitting of construction accessories on said edge.
  • the recesses 9 make it possible to ensure a balancing of the pressures undergone by the edge 1 during the pouring of the concrete.
  • the recesses 9 are of course arranged so as to be arranged at a height of the structure 2 greater than the height of the body 21 of the pre-slab 20 so that concrete cannot penetrate through the recesses 9 between the manufacturing mold 30 and the border 1.
  • the magnet 17 makes it possible both to position the edge 1 in the manufacturing mold 30, in the same way as the feet 12 or the tabs 14, but also to keep the edge 1 in position, even during casting. concrete, pressing it against the associated edge.
  • the edge 1 is shaped so as to be able to match the shape of the manufacturing mold 30 so that its plating by the magnet 17 turns out to be possible.
  • the feet 12 are thus inclined relative to the rest of the structure 2 in order to be able to match the inclination of said chamfer.
  • the edge 1 is then found rigidly secured to the body 21 of the pre-slab 20 so as to form therewith an all-rigid.
  • the pre-slab 20 can then be removed from the manufacturing mold 30.
  • the rim 1 is easily and quickly secured to the body 21 of the pre-slab 20 by overmolding during the manufacture of said body 21.
  • the edge 1 is therefore rigidly secured to the body 21 by being anchored therein.
  • the lower portion of the edge corresponding to that of the structure and extending here from the feet 12 to substantially the level of the recesses 9 without however reaching the latter, is embedded in the concrete of the body 21 of the pre-slab 20.
  • the edge 1 is thus arranged so that the cells extend towards the inside of the pre-slab 20. A part of the cells are therefore found partially embedded in the concrete of the body 21 of the pre-slab 20.
  • the smooth main face of the border 1 forms the free surface of the pre-slab 20.
  • a retaining element 40 or more retaining elements can then be fitted onto said upper portion so that the retaining elements 40 and the border 1 constitute together a portion of formwork of a compression slab intended to be cast on the pre-slab 20.
  • the invention therefore makes it possible to simplify the implementation of the formwork of the compression slab.
  • the invention makes it possible, for example, to cast a compression slab on a set of pre-slabs which is not bordered by walls or partitions over its entire periphery at the time of pouring.
  • the border is suitable for receiving other construction accessories than retaining elements such as blocks of thermally insulating material, safety devices, etc.
  • the construction element comprises only one border
  • the construction element may include a greater number of borders to form one of its edges, in particular although not exclusively longitudinal.
  • the successive borders can either be nested to each other at their ends, or be contiguous without being nested or be separated by space.
  • edges can be cut back to a desired length to form the edge of the construction element so that the cut end does not have any snap-fit means unlike the initial formed end, that one of the cells is not complete after cutting ...
  • the border may be different from what has been described.
  • the second row of cells will thus be able to comprise only cells contiguous to one another.
  • the first row of cells and the second row of cells will then have the same number of cells.
  • the tabs will then extend under one of the cells of the second row, a cell not associated with an anchoring foot.
  • the border may not have feet, a tongue, etc.
  • the cells, the feet, the tongues, the anti-fouling nozzles, the clipping notches may not all be identical.
  • the border may have a different number of rows of cells. The cells will not necessarily be organized in rows.
  • the border may not have a magnet.
  • the border can be simply placed in the mold for manufacturing the body of the construction element by being positioned along the edges of this mold and by being, where appropriate, simply held in position by external holding members.
  • the border comprises a magnet
  • the magnet can be fixed to the border differently than by overmolding, for example using adhesive or by fixing elements of the screw or other type.
  • the border is secured to the body of the pre-slab by overmolding during the manufacture of said body, it can be secured to the body of the pre-slab differently, for example by fixing elements of the screw or other type.

Description

L'invention concerne une bordure rectiligne d'élément de construction pour la réception d'au moins un accessoire de réception. L'invention concerne une bordure rectiligne d'une prédalle pour notamment la réception d'au moins un élément de retenue de sorte que l'élément de retenue et la bordure rectiligne forment ensemble une portion de coffrage pour le coulage d'une dalle de compression sur la prédalle, la prédalle et la dalle de compression formant alors conjointement un plancher.The invention relates to a rectilinear border of a construction element for receiving at least one receiving accessory. The invention relates to a rectilinear edge of a pre-slab for in particular the reception of at least one retaining element so that the retaining element and the rectilinear edge together form a shuttering portion for the casting of a compression slab. on the pre-slab, the pre-slab and the compression slab then jointly forming a floor.

L'invention concerne également un élément de construction comprenant une telle bordure. L'invention concerne une prédalle comportant une telle bordure. L'invention concerne plus particulièrement, bien que non exclusivement, une prédalle en béton comportant une telle bordure et préfabriquée sur un site de production pour être transportée sur un chantier de construction d'un bâtiment afin d'y être installée.The invention also relates to a construction element comprising such a border. The invention relates to a pre-slab comprising such a border. The invention relates more particularly, although not exclusively, to a concrete pre-slab comprising such a border and prefabricated on a production site to be transported to a construction site of a building in order to be installed there.

ARRIERE PLAN DE L'INVENTIONBACKGROUND OF THE INVENTION

La mise en œuvre de prédalles pour bâtir les planchers d'un bâtiment permet de gagner un temps considérable sur la construction de ce bâtiment. Typiquement, une prédalle est fabriquée sur un site de production de manière à être suffisamment légère pour être transportable jusqu'à un chantier de construction d'un bâtiment, et suffisamment résistante pour supporter le poids de la dalle de compression coulée ensuite sur elle sur le chantier.The implementation of pre-slabs to construct the floors of a building saves considerable time on the construction of this building. Typically, a pre-slab is fabricated at a production site so that it is light enough to be transportable to a building construction site, and strong enough to support the weight of the compression slab then cast onto it on the floor. site.

Sur un chantier de construction d'un bâtiment, la réalisation d'un plancher en utilisant de telles prédalles consiste dans un premier temps à installer un ensemble de prédalles en appui sur des murs de refend ou des poutres du bâtiment, de manière à couvrir toute la surface du plancher à réaliser. Puis, une fois que ces prédalles sont installées, des opérateurs placent sur la face supérieure qu'elles délimitent, un ensemble de ferraillages pour former les armatures de la dalle de compression à couler.On a building construction site, the production of a floor using such pre-slabs consists first of all in installing a set of pre-slabs resting on cross walls or building beams, so as to cover any the surface of the floor to be made. Then, once these pre-slabs are installed, operators place on the upper face that they define, a set of reinforcements to form the reinforcements of the compression slab to be cast.

Le coffrage de la dalle de compression à couler a ainsi un fond constitué par la face supérieure des prédalles, et un rebord périphérique qui est formé en partie par les murs entourant le plancher à construire, et en partie par des éléments additionnels de coffrage, en bois ou autre, que les opérateurs ajoutent le long des bords libres.The formwork for the compression slab to be poured thus has a bottom formed by the upper face of the pre-slabs, and a peripheral rim which is formed in part by the walls surrounding the floor to be constructed, and in part by additional formwork elements, in wood or other, which the operators add along the free edges.

Le coulage du béton de la dalle de compression est ainsi réalisé directement sur les prédalles.The concrete for the compression slab is thus poured directly on the pre-slabs.

Or la mise en place de ces éléments additionnels de coffrage des bords libres peut s'avérer fastidieux. En outre, si les éléments additionnels sont mal placés, le coulage du béton peut provoquer leur déplacement voire leur écroulement de sorte que le béton puisse alors s'écouler hors du coffrage.However, the installation of these additional formwork elements of the free edges can prove to be tedious. In addition, if the additional elements are placed incorrectly, the pouring of the concrete can cause them to move or even collapse so that the concrete can then flow out of the formwork.

Pour pallier cet inconvénient, il a été proposé d'ancrer dans la prédalle une bordure afin que des éléments de retenue puissent être ensuite solidarisés par simple emboîtement à la bordure de sorte à former avec la bordure un coffrage de la dalle de compression. De la sorte, le rebord périphérique du coffrage de la dalle de compression peut être très rapidement mis en œuvre dans les régions correspondant à un bord libre du plancher à fabriquer : il n'est plus nécessaire aux opérateurs de confectionner un rebord de coffrage avec des éléments en bois ou autre, il leur suffit d'emboîter dans la bordure des éléments de retenue. Une telle bordure est par exemple décrite dans le brevet FR 2 995 330 de la présente demanderesse.To overcome this drawback, it has been proposed to anchor a border in the pre-slab so that the retaining elements can then be secured by simple interlocking to the border so as to form with the border a shuttering of the compression slab. In this way, the peripheral edge of the formwork of the compression slab can be very quickly implemented in the regions corresponding to a free edge of the floor to be manufactured: it is no longer necessary for the operators to make a formwork edge with wooden or other elements, they just need to fit into the border of the retaining elements. Such a border is for example described in the patent FR 2 995 330 of the present plaintiff.

Toutefois, la fixation des bordures à la prédalle peut s'avérer elle-même fastidieuse.However, fixing the borders to the pre-slab can itself be tedious.

Le document US 5 224 313 propose un coffrage, présentant extérieurement une structure alvéolaire, et permettant de couler une dalle de béton tout en isolant un espace pour y ancrer dans un deuxième temps la base d'une colonne par du béton jusqu'à sensiblement le même niveau que la dalle de béton.The document US 5,224,313 offers a formwork, having an alveolar structure on the outside, and allowing a concrete slab to be poured while isolating a space to anchor the base of a column to it in a second step with concrete up to approximately the same level as the slab of concrete.

OBJET DE L'INVENTIONOBJECT OF THE INVENTION

Le but de l'invention est de proposer une prédalle selon la revendication 1.The aim of the invention is to provide a pre-slab according to claim 1.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet, l'invention a pour objet une prédalle comprenant une bordure rectiligne d'élément de construction s'étendant selon une droite donnée.To this end, the subject of the invention is a pre-slab comprising a rectilinear border of a construction element extending along a given straight line.

Selon l'invention, la bordure comporte une structure alvéolée en matière plastique qui comprend des cellules en relief s'étendant à partir de la structure vers l'extérieur de la bordure pour être destinée à être en regard d'un corps en béton de la prédalle.According to the invention, the border comprises a honeycomb structure of plastic material which comprises cells in relief extending from the structure towards the outside of the border to be intended to be opposite a concrete body of the predalle.

De par sa structure alvéolée en matière plastique, la bordure rectiligne s'avère non seulement flexible et souple mais également légère. Ceci facilite la manipulation de la bordure rectiligne et permet donc plus facilement de la solidariser au corps en béton de la prédalle. En outre, il s'avère possible d'avoir une bordure de grandes dimensions et notamment d'une grande longueur ce qui facilite encore davantage la solidarisation de la bordure au corps en béton. Par exemple lorsque la bordure est destinée à être noyée dans le béton de la prédalle, la bordure peut être très aisément disposée dans le moule de fabrication de la prédalle, de par son poids, sa souplesse et sa flexibilité, et un nombre bien moins important de bordures s'avère alors nécessaire pour former tout un bord de la prédalle.Due to its honeycomb structure in plastic material, the rectilinear border is not only flexible and supple but also light. This facilitates the handling of the rectilinear border and therefore makes it easier to attach it to the concrete body of the pre-slab. In addition, it turns out to be possible to have a border of large dimensions and in particular of a great length, which further facilitates the attachment of the border to the concrete body. For example, when the border is intended to be embedded in the concrete of the pre-slab, the border can be very easily placed in the mold for manufacturing the pre-slab, due to its weight, its flexibility and its flexibility, and a much smaller number of edges is then necessary to form an entire edge of the pre-slab.

En outre, toujours de par la structure alvéolée en matière plastique, il s'avère possible de découper facilement la bordure rectiligne pour en modifier la longueur selon les besoins de production. Ce découpage peut par exemple se faire sur le lieu de production des éléments de construction. Ceci facilite encore une fois la fixation de la bordure rectiligne à la prédalle.In addition, again by virtue of the honeycomb structure of plastic material, it proves to be possible to easily cut the rectilinear edge in order to modify its length according to production needs. This cutting can for example be done at the place of production of the elements of construction. This once again facilitates the fixing of the rectilinear border to the pre-slab.

Par ailleurs, la bordure rectiligne peut être fabriquée par injection de sorte qu'elle soit peu coûteuse à fabriquer.On the other hand, the straight edge can be manufactured by injection so that it is inexpensive to manufacture.

Selon un mode de réalisation particulier, la structure comporte au moins une rangée de cellules en relief qui sont agencées côte à côte le long de la droite et qui s'étendent à partir de la structure vers l'extérieur de la bordure pour être destinée à être en regard d'un corps en béton de la prédalle.According to a particular embodiment, the structure comprises at least one row of cells in relief which are arranged side by side along the right and which extend from the structure towards the outside of the border to be intended for be facing a concrete body of the pre-slab.

Selon un mode de réalisation particulier, la structure comporte au moins un évidemment la traversant, l'évidemment étant agencé à une hauteur de la structure supérieure à la hauteur de la prédalle à laquelle la bordure est destinée à être fixée.According to a particular embodiment, the structure comprises at least one recess passing through it, the recess being arranged at a height of the structure greater than the height of the pre-slab to which the edge is intended to be fixed.

Selon un mode de réalisation particulier, la structure comporte au moins un pied d'ancrage s'étendant d'une portion inférieure de la structure vers l'extérieur de la bordure.According to a particular embodiment, the structure comprises at least one anchoring foot extending from a lower portion of the structure towards the outside of the border.

L'invention concerne également une prédalle comportant un corps en béton et au moins une bordure comme précédemment décrite fixée au corps en béton pour former au moins une partie d'un bord de la prédalle.The invention also relates to a pre-slab comprising a concrete body and at least one edge as previously described attached to the concrete body to form at least part of one edge of the pre-slab.

Dès lors, des accessoires de construction (élément de retenue, bloc d'isolation thermique, organe de sécurité ...) peuvent être solidarisés par simple emboîtement à la bordure.Therefore, construction accessories (retaining element, thermal insulation block, safety device, etc.) can be secured by simple interlocking to the edge.

Pour toute la présente demande, les termes « inférieur », « supérieur », « hauteur », « longueur » ... doivent être entendus par rapport à la position en service de la bordure soit la position de la bordure une fois posée dans un moule de fabrication de la prédalle ou une fois fixée à la prédalle.Throughout the present application, the terms "lower", "upper", "height", "length" ... must be understood in relation to the position in service of the edge, ie the position of the edge once placed in a pre-slab manufacturing mold or once attached to the pre-slab.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

L'invention sera mieux comprise à la lumière de la description qui suit de modes de réalisation particuliers, non limitatifs, de l'invention. Il sera fait référence aux figures ci-jointes, parmi lesquelles :

  • la figure 1 est une vue en perspective de la bordure selon un premier mode de réalisation de l'invention,
  • la figure 2 est une vue avant de la bordure illustrée à la figure 1,
  • la figure 3 est une vue arrière de la bordure illustrée à la figure 1,
  • la figure 4 est une vue en perspective de la bordure illustrée à la figure 1 lorsqu'elle est en position dans le moule de fabrication d'un élément de construction associé,
  • la figure 5 est une vue en perspective d'un élément de construction, de la bordure illustrée à la figure 1 incorporée audit élément de construction ainsi que d'un accessoire de construction destiné à être emboîté à la bordure selon un mouvement correspondant à la flèche illustrée,
  • la figure 6 est une vue en perspective de la bordure selon un deuxième mode de réalisation de l'invention.
The invention will be better understood in the light of the following description of particular, non-limiting embodiments of the invention. Reference will be made to the attached figures, among which:
  • the figure 1 is a perspective view of the border according to a first embodiment of the invention,
  • the figure 2 is a front view of the border shown on figure 1 ,
  • the figure 3 is a rear view of the border shown on figure 1 ,
  • the figure 4 is a perspective view of the border shown on figure 1 when it is in position in the manufacturing mold of an associated construction element,
  • the figure 5 is a perspective view of a construction element, from the border shown on figure 1 incorporated into said construction element as well as a construction accessory intended to be fitted to the border according to a movement corresponding to the arrow illustrated,
  • the figure 6 is a perspective view of the border according to a second embodiment of the invention.

DESCRIPTION DETAILLEE DE L'INVENTIONDETAILED DESCRIPTION OF THE INVENTION

En référence aux figures 1 à 3, la bordure selon le premier mode de réalisation de l'invention, généralement désignée en 1, est rectiligne et s'étend selon une droite X.With reference to figures 1 to 3 , the border according to the first embodiment of the invention, generally designated at 1, is rectilinear and extends along a straight line X.

Selon l'invention, la bordure 1 comporte une structure 2 alvéolée en matière plastique qui comprend des cellules en relief s'étendant à partir de la structure 2 vers l'extérieur de la bordure 1. Les différentes cellules 2 sont ici ouvertes vers l'extérieur de la bordure 1.According to the invention, the border 1 comprises a honeycomb structure 2 of plastic material which comprises cells in relief extending from the structure. 2 towards the outside of border 1. The different cells 2 are here open towards the outside of border 1.

La structure 2 est par exemple en polypropylène.The structure 2 is for example made of polypropylene.

De façon particulière, la structure 2 comporte une première rangée 3 de cellules agencées côte à côte le long de la droite X (une des cellules de la première rangée 3 étant symbolisée en pointillés et désignée par 4). Toutes les cellules de la première rangée 3 sont ici accolées. La structure 2 comporte une deuxième rangée 5 de cellules agencées côte à côte le long de la droite X et accolées deux à deux (une des cellules de la deuxième rangée 5 étant symbolisée en points-tirets et désignée par 6), chaque bloc de deux cellules accolées (un des blocs étant symbolisé en tirets et désigné par 7) étant séparé par un espace 8 du bloc suivant de deux cellules accolées. Grâce aux différents espaces 8, la structure 2 s'avère particulièrement flexible.In particular, the structure 2 comprises a first row 3 of cells arranged side by side along the straight line X (one of the cells of the first row 3 being symbolized in dotted lines and designated by 4). All the cells of the first row 3 are joined here. Structure 2 comprises a second row 5 of cells arranged side by side along the straight line X and contiguous two by two (one of the cells of the second row 5 being symbolized by dots and designated by 6), each block of two contiguous cells (one of the blocks being symbolized in dashes and designated by 7) being separated by a space 8 from the next block of two contiguous cells. Thanks to the different spaces 8, the structure 2 proves to be particularly flexible.

La deuxième rangée 5 de cellules s'étend sous la première rangée 3 de cellules de sorte qu'une cellule de la deuxième rangée 5 se trouve dans le prolongement d'une cellule respective de la première rangée 3. La deuxième rangée 5 de cellules s'étend donc parallèlement à la première rangée 3 de cellules.The second row 5 of cells extends below the first row 3 of cells so that a cell of the second row 5 is in the continuation of a respective cell of the first row 3. The second row 5 of cells s 'therefore extends parallel to the first row 3 of cells.

Ici, les cellules de la première rangée 3 sont toutes identiques entre elles et les cellules de la deuxième rangée 5 sont toutes identiques entre elles. De façon particulière, les cellules de la première rangée 3 et les cellules de la deuxième rangée 5 ont une même longueur (dimension prise le long de la droite X) et sensiblement une même largeur (dimension prise le long d'une droite Y perpendiculaire à la droite X et correspondant au relief des cellules). Les cellules de la deuxième rangée 5 ont ici une hauteur supérieure aux cellules de la première rangée 3 (dimension prise le long d'une droite Z perpendiculaire à la droite X et à la droite Y).Here, the cells of the first row 3 are all identical to each other and the cells of the second row 5 are all identical to each other. In particular, the cells of the first row 3 and the cells of the second row 5 have the same length (dimension taken along line X) and substantially the same width (dimension taken along a line Y perpendicular to the line X and corresponding to the relief of the cells). The cells of the second row 5 have here a height greater than the cells of the first row 3 (dimension taken along a line Z perpendicular to line X and line Y).

De la sorte, toutes les cellules de la structure 2 s'étendent à partir d'une même face principale de la structure 2. L'autre face principale de la structure 2 s'avère alors exempte de cellules et est donc sensiblement lisse.In this way, all the cells of structure 2 extend from the same main face of structure 2. The other main face of structure 2 then turns out to be free of cells and is therefore substantially smooth.

La structure 2 comporte par exemple 29 cellules pour la première rangée 3 et 20 cellules pour la deuxième rangée 5.Structure 2 comprises for example 29 cells for the first row 3 and 20 cells for the second row 5.

De préférence, la structure 2 comporte des évidements 9 (dont certains seulement sont référencés) traversant la structure 2 dans sa largeur. Plus précisément ici un évidement 9 traverse la structure 2 au niveau de chacune des cellules de la deuxième rangée 5 et au niveau de chaque espace 8 séparant les blocs de deux cellules accolées. Les évidements 9 sont agencés en partie haute des cellules de la deuxième rangée 5 et des espaces 8 associés, sensiblement au niveau de la frontière entre la première rangée 3 de cellules et la deuxième rangée 5 de cellule.Preferably, the structure 2 comprises recesses 9 (only some of which are referenced) crossing the structure 2 in its width. More precisely here a recess 9 crosses the structure 2 at the level of each of the cells of the second row 5 and at the level of each space 8 separating the blocks of two contiguous cells. The recesses 9 are arranged in the upper part of the cells of the second row 5 and associated spaces 8, substantially at the level of the border between the first row 3 of cells and the second row 5 of cells.

La portion supérieure de la structure 2 comporte des encoches de clipage 10 (dont une partie seulement est référencée) régulièrement réparties sur la longueur de la structure 2 pour l'emboîtement d'accessoires de construction sur la bordure 1 comme nous le verrons par la suite. Les encoches de clipage 10 sont identiques. Les encoches de clipage 10 sont ici ménagées à la frontière entre la première rangée 3 de cellules et la deuxième rangée 5 de cellule par une inflexion dans les parois des cellules. A chaque frontière se trouve ici une encoche de clipage 10. De façon particulière, chaque encoche de clipage 10 est surmontée d'un bec antisalissure 11 (dont certains seulement sont référencés). Les becs antisalissure 11 sont tous identiques. Les becs antisalissure 11 sont ici ménagés dans les parois de la première rangée 3 de cellules de sorte à former une protubérance venant au-dessus des encoches de clipage 10. Les becs antisalissure 11 sont en outre configurés de sorte à être inclinés en direction de la portion basse de la structure 2.The upper portion of the structure 2 comprises clip notches 10 (of which only a part is referenced) regularly distributed over the length of the structure 2 for the fitting of construction accessories on the border 1 as we will see below. . The clip notches 10 are identical. The clip notches 10 are here formed at the border between the first row 3 of cells and the second row 5 of cells by an inflection in the walls of the cells. At each border there is here a clipping notch 10. In particular, each clipping notch 10 is surmounted by an antifouling spout 11 (only some of which are referenced). The anti-fouling nozzles 11 are all identical. The anti-fouling nozzles 11 are here provided in the walls of the first row 3 of cells so as to form a protuberance coming above the clipping notches 10. The antifouling nozzles 11 are further configured so as to be inclined towards the lower portion of the structure 2.

La portion inférieure comporte ici des pieds 12 d'ancrage. Les pieds 12 sont régulièrement répartis sur la longueur de la structure 2. Les pieds 12 sont identiques. Chaque pied 12 s'étend ici d'une portion inférieure de la structure 2 vers l'extérieur de la bordure 1. Chaque pied 12 s'étend dans le prolongement de l'une des parois communes à deux cellules accolées de la deuxième rangée 5 (soit une paroi de normale la droite X). La structure 2 comporte ici un pied 12 au niveau de chaque bloc de deux cellules accolées. La structure 2 comporte par exemple dix pieds 12.The lower portion here comprises anchoring feet 12. The feet 12 are regularly distributed over the length of the structure 2. The feet 12 are identical. Each foot 12 extends here from a lower portion of the structure 2 towards the outside of the border 1. Each foot 12 extends in the extension of one of the walls common to two contiguous cells of the second row 5 (that is to say a wall of normal the line X). The structure 2 here comprises a foot 12 at the level of each block of two contiguous cells. The structure 2 comprises for example ten feet 12.

De façon particulière, la structure 2 comporte deux ailes 13 associées à chaque pied 12. Chaque aile 13 s'étend transversalement au pied 12 associé entre une partie basse du pied 12 à la deuxième rangée 5 de cellule. Plus précisément, chaque aile 13 s'étend de la partie basse du pied 12 jusqu'à la paroi extérieure du bloc de deux cellules accolées correspondant audit pied 12, paroi extérieure parallèle à la paroi commune aux deux cellules accolées dudit bloc.In particular, the structure 2 comprises two wings 13 associated with each foot 12. Each wing 13 extends transversely to the foot 12 associated between a lower part of the foot 12 to the second row 5 of the cell. More precisely, each wing 13 extends from the lower part of the foot 12 to the outer wall of the block of two contiguous cells corresponding to said foot 12, the outer wall parallel to the wall common to the two contiguous cells of said block.

Ici, la portion inférieure de la structure 2 comporte au moins une languette 14 de positionnement de la bordure 1. Plus précisément, chaque languette 14 de positionnement est agencée de sorte à s'étendre à la normale de la structure 2 vers l'extérieur de la bordure 1 dans le prolongement des cellules, dans le sens de la largeur de la structure 2 (soit donc ici de sorte à s'étendre selon la droite Z).Here, the lower portion of the structure 2 comprises at least one tongue 14 for positioning the edge 1. More precisely, each positioning tongue 14 is arranged so as to extend to the normal of the structure 2 towards the outside of the border 1 in the extension of the cells, in the direction of the width of the structure 2 (ie therefore here so as to extend along the line Z).

La structure 2 comporte ici plusieurs languettes 14. Par exemple, la structure 2 comporte deux languettes 14.The structure 2 here comprises several tabs 14. For example, the structure 2 comprises two tabs 14.

Les languettes 14 sont identiques, s'étendent à partir du même niveau de la portion inférieure et sont réparties sur la longueur de la structure 2. Chaque languette 14 s'étend ici à partir de la portion inférieure de l'un des espaces 8 séparant deux blocs de cellules accolées.The tongues 14 are identical, extend from the same level of the lower portion and are distributed over the length of the structure 2. Each tongue 14 here extends from the lower portion of one of the spaces 8 separating two blocks of contiguous cells.

Les deux extrémités longitudinales (selon l'axe X) de la structure comportent respectivement des moyens d'encliquetage mâle 15 et des moyens d'encliquetage femelle 16 par exemple de type tenon/mortaise. De la sorte, il s'avère possible d'emboîter très simplement les uns à la suite des autres plusieurs bordures 1 en encliquetant les moyens d'encliquetage femelle 16 avec les moyens d'encliquetage mâle 15 de deux bordures 1 consécutives.The two longitudinal ends (along the X axis) of the structure respectively comprise male latching means 15 and female latching means 16, for example of the tenon / mortise type. In this way, it turns out to be possible to fit together very simply one after the other several borders 1 by latching the female latching means 16 with the male latching means 15 of two consecutive edges 1.

De façon particulière, la bordure 1 comporte un aimant 17 qui est agencé sur la face principale de la structure 1 opposée de celle à partir de laquelle s'étendent les cellules. L'aimant 17 est agencé de sorte à saillir du reste de ladite face principale. Plus précisément ici, l'aimant 17 est agencé en-dessous des différents évidements 9 de la structure 2.In particular, the border 1 comprises a magnet 17 which is arranged on the main face of the structure 1 opposite to that from which the cells extend. Magnet 17 is arranged so as to project from the rest of said main face. More precisely here, the magnet 17 is arranged below the various recesses 9 of the structure 2.

De préférence, l'aimant 17 se présente sous la forme d'une bande. L'aimant 17 est agencé de sorte à s'étendre selon la droite X. L'aimant 17 permet ainsi de bien couvrir toute la longueur de la structure 2.Preferably, the magnet 17 is in the form of a strip. The magnet 17 is arranged so as to extend along the straight line X. The magnet 17 thus makes it possible to properly cover the entire length of the structure 2.

La bordure 1 qui vient d'être décrite est de façon préférée fabriquée par injection. La bordure 1 s'avère donc simple et rapide à fabriquer.The border 1 which has just been described is preferably manufactured by injection. The border 1 therefore turns out to be quick and easy to manufacture.

De façon particulière, la bordure 1 est fabriquée en deux étapes :

  • au cours d'une première étape, l'aimant 17 est rapporté dans un moule d'injection de la structure 2,
  • au cours de la deuxième étape, la structure 2 est formée et l'aimant 17 est simultanément surmoulé sur la structure 2 de sorte que l'aimant 17 et la structure 2 forment un tout-rigide.
In particular, the border 1 is manufactured in two stages:
  • during a first step, the magnet 17 is attached to an injection mold of the structure 2,
  • during the second step, the structure 2 is formed and the magnet 17 is simultaneously overmolded on the structure 2 so that the magnet 17 and the structure 2 form an all-rigid.

En référence à la figure 5, la bordure 1 qui vient d'être décrite est ici destinée à former une portion ou la totalité (selon sa longueur) de l'un des bords longitudinaux d'une prédalle 20, c'est-à-dire que la bordure 1 est alignée de sorte que l'axe X soit parallèle au bord longitudinal associé de la prédalle 20. La prédalle 20 comporte un corps 21 en béton. Le corps 21 de la prédalle 20 est ici en béton précontraint et comprend des câbles de précontrainte 22 orientés longitudinalement et parallèlement les uns aux autres selon l'axe X.With reference to the figure 5 , the edge 1 which has just been described is here intended to form a portion or all (depending on its length) of one of the longitudinal edges of a predalle 20, that is to say that the edge 1 is aligned so that the X axis is parallel to the associated longitudinal edge of the pre-slab 20. The pre-slab 20 comprises a body 21 made of concrete. The body 21 of the pre-slab 20 is here made of prestressed concrete and comprises prestressing cables 22 oriented longitudinally and parallel to each other along the X axis.

En référence à la figure 4, et selon un mode de réalisation particulier pour fixer la bordure 1 à la prédalle 20, la bordure 1 est installée dans un moule de fabrication 30 du corps 21 de la prédalle 20 en étant positionnée le long de l'une des rives longitudinales de ce moule 30.With reference to the figure 4 , and according to a particular embodiment for fixing the edge 1 to the pre-slab 20, the edge 1 is installed in a manufacturing mold 30 of the body 21 of the pre-slab 20 while being positioned along one of the longitudinal edges of this mold 30.

Les pieds 12 viennent alors reposer sur un fond du moule de fabrication 30. Les pieds 12 permettent à un opérateur de positionner correctement de façon aisée et rapide la bordure 1 dans le moule de fabrication 30 en servant de point de repérage.The feet 12 then come to rest on a base of the manufacturing mold 30. The feet 12 allow an operator to easily and quickly position the rim 1 correctly in the manufacturing mold 30 by serving as a registration point.

De même, chaque languette 14 est positionnée dans le moule de fabrication 30 de sorte à s'étendre juste sous les câbles de précontrainte 22 agencés dans le moule de fabrication 30 pour être solidarisés au corps 21 de la prédalle 20. Les languettes 14 jouent ainsi également le rôle de point de repérage pour l'opérateur.Likewise, each tab 14 is positioned in the manufacturing mold 30 so as to extend just under the prestressing cables 22 arranged in the manufacturing mold 30 to be secured to the body 21 of the pre-slab 20. The tabs 14 thus play. also the role of checkpoint for the operator.

Il s'avère donc très simple de positionner la bordure 1 dans le moule de fabrication 30 et de vérifier le bon positionnement de celle-ci en repérant simplement si les câbles de précontrainte 22 sont bien au-dessus des languettes 14 et si les pieds 12 reposent bien sur le fond du moule de fabrication 30.It therefore turns out to be very simple to position the edge 1 in the manufacturing mold 30 and to check the correct positioning of the latter by simply locating whether the prestressing cables 22 are well above the tabs 14 and whether the feet 12 rest well on the bottom of the manufacturing mold 30.

Le béton est ensuite coulé dans le moule de fabrication 30 pour former le corps 21 de la prédalle 20.The concrete is then poured into the manufacturing mold 30 to form the body 21 of the pre-slab 20.

Les becs antisalissure 11 permettent de protéger les encoches de clipage 10 lors du coulage du corps 21 de la prédalle 20 et notamment du béton qui pourrait accidentellement être projeté vers lesdites encoches de clipage 10. On évite ainsi que du béton ne se fige dans les encoches de clipage 10 ce qui serait préjudiciable pour un emboîtement ultérieur d'accessoires de construction sur ladite bordure.The anti-fouling nozzles 11 make it possible to protect the clipping notches 10 during the casting of the body 21 of the pre-slab 20 and in particular concrete which could accidentally be thrown towards said clipping notches 10. This prevents concrete from freezing in the notches. clipping 10 which would be detrimental for a subsequent fitting of construction accessories on said edge.

De façon avantageuse, les évidements 9 permettent d'assurer un équilibrage des pressions subies par la bordure 1 lors du coulage du béton. Les évidements 9 sont bien entendu agencés de sorte à se trouver agencés à une hauteur de la structure 2 supérieure à la hauteur du corps 21 de la prédalle 20 afin que du béton ne puisse pénétrer par les évidements 9 entre le moule de fabrication 30 et la bordure 1.Advantageously, the recesses 9 make it possible to ensure a balancing of the pressures undergone by the edge 1 during the pouring of the concrete. The recesses 9 are of course arranged so as to be arranged at a height of the structure 2 greater than the height of the body 21 of the pre-slab 20 so that concrete cannot penetrate through the recesses 9 between the manufacturing mold 30 and the border 1.

Par ailleurs, l'aimant 17 permet tout à la fois de positionner la bordure 1 dans le moule de fabrication 30, au même titre que les pieds 12 ou les languettes 14, mais également de maintenir la bordure 1 en position, même pendant le coulage du béton, en la plaquant contre la rive associée.Furthermore, the magnet 17 makes it possible both to position the edge 1 in the manufacturing mold 30, in the same way as the feet 12 or the tabs 14, but also to keep the edge 1 in position, even during casting. concrete, pressing it against the associated edge.

En effet, lorsque la bordure 1 est agencée dans le moule de fabrication 30, l'aimant 17 permet de bien plaquer la bordure 1 contre la rive en adhérant au moule de fabrication 30. Ceci évite l'infiltration du béton entre la bordure 1 et le moule de fabrication 30 au niveau de la portion supérieure de la bordure 1 lors du coulage du corps 21 ce qui pourrait gêner un emboîtement ultérieur d'accessoires de construction sur ladite bordure 1 tels que des éléments de retenue.Indeed, when the edge 1 is arranged in the manufacturing mold 30, the magnet 17 makes it possible to press the edge 1 against the edge while adhering to the manufacturing mold 30. This prevents the infiltration of concrete between the edge 1 and the manufacturing mold 30 at the level of the upper portion of the edge 1 during the casting of the body 21 which could hinder subsequent fitting of construction accessories on said edge 1 such as retaining elements.

De par sa forme allongée, l'aimant 17 permet en outre de bien couvrir toute la longueur de la structure 2 et donc de bien plaquer toute la bordure 1 contre le moule de fabrication 30.By virtue of its elongated shape, the magnet 17 also makes it possible to cover the entire length of the structure 2 and therefore to press the entire edge 1 against the manufacturing mold 30.

Bien entendu, la bordure 1 est conformée de sorte à pouvoir épouser la forme du moule de fabrication 30 afin que son plaquage par l'aimant 17 s'avère possible. Dans le cas d'un chanfrein entre le fond du moule 30 et les parois latérales du moule 30, les pieds 12 sont ainsi inclinés par rapport au reste de la structure 2 pour pouvoir épouser l'inclinaison dudit chanfrein.Of course, the edge 1 is shaped so as to be able to match the shape of the manufacturing mold 30 so that its plating by the magnet 17 turns out to be possible. In the case of a chamfer between the bottom of the mold 30 and the side walls of the mold 30, the feet 12 are thus inclined relative to the rest of the structure 2 in order to be able to match the inclination of said chamfer.

Une fois que le béton a été coulé et a terminé de prendre, la bordure 1 se retrouve alors rigidement solidarisée au corps 21 de prédalle 20 de sorte à former avec celui-ci un tout-rigide. La prédalle 20 peut alors être retirée du moule de fabrication 30.Once the concrete has been poured and has finished setting, the edge 1 is then found rigidly secured to the body 21 of the pre-slab 20 so as to form therewith an all-rigid. The pre-slab 20 can then be removed from the manufacturing mold 30.

De la sorte, on solidarise facilement et rapidement la bordure 1 au corps 21 de la prédalle 20 par surmoulage durant la fabrication dudit corps 21.In this way, the rim 1 is easily and quickly secured to the body 21 of the pre-slab 20 by overmolding during the manufacture of said body 21.

En référence à la figure 5, la bordure 1 est donc rigidement solidarisée au corps 21 en étant ancrée dans celui-ci. La portion inférieure de la bordure, correspondant à celle de la structure et s'étendant ici des pieds 12 jusqu'à sensiblement le niveau des évidements 9 sans toutefois atteindre celui-ci, se trouve enrobée dans le béton du corps 21 de prédalle 20.With reference to the figure 5 , the edge 1 is therefore rigidly secured to the body 21 by being anchored therein. The lower portion of the edge, corresponding to that of the structure and extending here from the feet 12 to substantially the level of the recesses 9 without however reaching the latter, is embedded in the concrete of the body 21 of the pre-slab 20.

La bordure 1 est ainsi agencée de sorte que les cellules s'étendent vers l'intérieur de la prédalle 20. Une partie des cellules se retrouvent donc partiellement noyées dans le béton du corps 21 de prédalle 20. La face principale lisse de la bordure 1 forme la surface libre de la prédalle 20.The edge 1 is thus arranged so that the cells extend towards the inside of the pre-slab 20. A part of the cells are therefore found partially embedded in the concrete of the body 21 of the pre-slab 20. The smooth main face of the border 1 forms the free surface of the pre-slab 20.

La portion supérieure de la structure 2, correspondant à celle de la bordure 1, dépasse donc de la face supérieure du corps 21 de prédalle 20. Un élément de retenue 40 ou plusieurs éléments de retenue peuvent alors être emboîtés sur ladite portion supérieure de sorte que les éléments de retenue 40 et la bordure 1 constituent ensemble une portion de coffrage d'une dalle de compression destinée à être coulée sur la prédalle 20.The upper portion of the structure 2, corresponding to that of the edge 1, therefore protrudes from the upper face of the body 21 of the pre-slab 20. A retaining element 40 or more retaining elements can then be fitted onto said upper portion so that the retaining elements 40 and the border 1 constitute together a portion of formwork of a compression slab intended to be cast on the pre-slab 20.

L'invention permet donc de simplifier la mise en œuvre du coffrage de la dalle de compression.The invention therefore makes it possible to simplify the implementation of the formwork of the compression slab.

L'invention permet par exemple de couler une dalle de compression sur un ensemble de prédalles qui n'est pas bordé de murs ou cloisons sur tout son pourtour au moment du coulage.The invention makes it possible, for example, to cast a compression slab on a set of pre-slabs which is not bordered by walls or partitions over its entire periphery at the time of pouring.

Bien entendu l'invention n'est pas limitée au mode de réalisation décrit et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiment described and it is possible to provide variant embodiments without departing from the scope of the invention as defined by the claims.

Par ailleurs, la bordure est apte à recevoir d'autres accessoires de construction que des éléments de retenue tels que des blocs en matériau isolant thermiquement, des organes de sécurité ...Furthermore, the border is suitable for receiving other construction accessories than retaining elements such as blocks of thermally insulating material, safety devices, etc.

De plus, bien qu'ici l'élément de construction ne comporte qu'une seule bordure, l'élément de construction pourra comporter un plus grand nombre de bordures pour former l'un de ses bords, en particulier bien que non exclusivement longitudinaux. Les bordures successives pourront soit être emboîtées les uns aux autres au niveau de leurs extrémités, soit être accolées sans être emboîtées soit être séparées par espace.In addition, although here the construction element comprises only one border, the construction element may include a greater number of borders to form one of its edges, in particular although not exclusively longitudinal. The successive borders can either be nested to each other at their ends, or be contiguous without being nested or be separated by space.

Les bordures pourront être redécoupées à une longueur voulue pour former le bord de l'élément de construction de sorte que l'extrémité découpée ne comporte aucun moyen d'encliquetage contrairement à l'extrémité formée initiale, qu'une des cellules ne soit pas complète après découpage ...The edges can be cut back to a desired length to form the edge of the construction element so that the cut end does not have any snap-fit means unlike the initial formed end, that one of the cells is not complete after cutting ...

La bordure pourra être différente de ce qui a été décrite. En référence à la figure 6, et selon un deuxième mode de réalisation de l'invention, la deuxième rangée de cellules pourra ainsi ne comporter que des cellules accolées les unes aux autres. La première rangée de cellules et la deuxième rangée de cellules comporteront alors le même nombre de cellules. Les languettes s'étendront alors sous l'une des cellules de la deuxième rangée, cellule non associée à un pied d'ancrage.The border may be different from what has been described. With reference to the figure 6 , and according to a second As an embodiment of the invention, the second row of cells will thus be able to comprise only cells contiguous to one another. The first row of cells and the second row of cells will then have the same number of cells. The tabs will then extend under one of the cells of the second row, a cell not associated with an anchoring foot.

En variante, la bordure pourra ne pas comporter de pieds, de languette ... Les cellules, les pieds, les languettes, les becs antisalissure, les encoches de clipage pourront ne pas tous être identiques. La bordure pourra comporter un nombre différent de rangées de cellules. Les cellules ne seront pas nécessairement organisées en rangée.As a variant, the border may not have feet, a tongue, etc. The cells, the feet, the tongues, the anti-fouling nozzles, the clipping notches may not all be identical. The border may have a different number of rows of cells. The cells will not necessarily be organized in rows.

La bordure pourra ne pas comporter d'aimant. Dans ce cas, la bordure pourra être simplement posée dans le moule de fabrication du corps de l'élément de construction en étant positionnée le long des rives de ce moule et en étant le cas échéant simplement maintenue en position par des organes de maintien externes.The border may not have a magnet. In this case, the border can be simply placed in the mold for manufacturing the body of the construction element by being positioned along the edges of this mold and by being, where appropriate, simply held in position by external holding members.

Si la bordure comporte un aimant, l'aimant pourra être fixé à la bordure différemment que par surmoulage, par exemple à l'aide d'adhésif ou par des éléments de fixation de type vis ou autre.If the border comprises a magnet, the magnet can be fixed to the border differently than by overmolding, for example using adhesive or by fixing elements of the screw or other type.

Bien qu'ici, la bordure soit solidarisée au corps de la prédalle par surmoulage durant la fabrication dudit corps, elle pourra être solidarisée au corps de la prédalle différemment par exemple par des éléments de fixation de type vis ou autre.Although here, the border is secured to the body of the pre-slab by overmolding during the manufacture of said body, it can be secured to the body of the pre-slab differently, for example by fixing elements of the screw or other type.

Claims (16)

  1. Pre-slab including a concrete body (21) and at least one edging strip (1) extending along a straight line (X), the edging strip including a cellular plastic material structure (2) that comprises raised cells (4, 6) extending from the structure toward the exterior of the edging strip to face the concrete body (21), the edging strip being fixed to the concrete body to form at least a part of an edge of the pre-slab, an upper portion of the edging strip projecting from an upper face of the concrete body.
  2. Pre-slab according to claim 1, in which the structure (2) includes at least one row (3, 5) of raised cells that are arranged side-by-side along the straight line (X) and extend from the structure toward the exterior of the edging strip (1) facing the concrete body (21).
  3. Pre-slab according to claim 2, in which the various cells of the row (3, 5) are all identical.
  4. Pre-slab according to claim 2, in which the structure (2) includes a first row of cells (3) arranged side-by-side along the straight line (X) and a second row of cells (5) arranged side-by-side along the straight line (X), the second row of cells extending under the first row of cells so that a cell of the second row is in line with a respective cell of the first row.
  5. Pre-slab according to claim 4, in which the cells of the first row (3) are all identical to one another and the cells of the second row (5) are all identical to one another, the cells of the second row having a greater height than the cells of the first row.
  6. Pre-slab according to claim 1, in which the structure includes at least one opening (9) through it, the opening being arranged at a height of the structure (2) greater than the height of the pre-slab.
  7. Pre-slab according to claim 1, in which an upper portion of the structure (2) includes clipping notches (10) regularly distributed along the straight line (X) for nesting construction accessories on the edging strip (1).
  8. Pre-slab according to claim 7, in which the upper portion of the structure (2) includes anti-soiling guards (11), each anti-soiling guard surmounting a respective one of the clipping notches (10).
  9. Pre-slab according to claim 1, in which the structure (2) includes at least one anchor foot (12) extending from a lower portion of the structure toward the exterior of the edging strip.
  10. Pre-slab according to claim 1, in which the structure (2) includes at least one tongue (14) for positioning the edging strip (1) that is arranged in the lower part of the structure and extends from the structure toward the exterior of the edging strip so as to face the concrete body (21).
  11. Pre-slab according to claim 1, in which the two longitudinal ends of the structure (2) include respective male clipping means (15) and female clipping means (16).
  12. Pre-slab according to claim 1, further including a magnet (17) that is arranged on the structure opposite the raised cells.
  13. Pre-slab according to claim 12, in which the magnet (17) extends along the straight line (X).
  14. Pre-slab according to claim 12, in which the magnet (17) is in the form of a strip.
  15. Pre-slab according to claim 1, in which the structure (2) is made of polypropylene.
  16. Pre-slab according to claim 1, in which the edging strip (1) includes a lower anchor portion embedded in the concrete of the pre-slab.
EP16160856.7A 2015-03-17 2016-03-17 Straight edge of a construction element and construction element comprising such an edge Active EP3070223B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16160856T PL3070223T3 (en) 2015-03-17 2016-03-17 Straight edge of a construction element and construction element comprising such an edge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1552187A FR3033812B1 (en) 2015-03-17 2015-03-17 CONTINUOUS EDGE OF CONSTRUCTION ELEMENT AND CONSTRUCTION ELEMENT COMPRISING SUCH A BORDER.

Publications (2)

Publication Number Publication Date
EP3070223A1 EP3070223A1 (en) 2016-09-21
EP3070223B1 true EP3070223B1 (en) 2021-09-01

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EP16160856.7A Active EP3070223B1 (en) 2015-03-17 2016-03-17 Straight edge of a construction element and construction element comprising such an edge

Country Status (5)

Country Link
EP (1) EP3070223B1 (en)
ES (1) ES2888405T3 (en)
FR (1) FR3033812B1 (en)
PL (1) PL3070223T3 (en)
PT (1) PT3070223T (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3093743B1 (en) * 2019-03-12 2022-01-21 Plattard Sas Draft of a pre-formed concrete beam comprising a bottom and side panels

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5224313A (en) * 1991-10-31 1993-07-06 Guillebeau Iii Otis P Apparatus for constructing isolation pockets
DE19528842A1 (en) * 1995-08-04 1997-02-06 Reymann Technik Gmbh Formwork system for precast concrete parts
ATE305544T1 (en) * 1999-08-20 2005-10-15 System Albanese METHOD FOR CREATING A CEILING EDGE FORMWORK AND A CEILING EDGE FORMWORK
FR2995330B1 (en) 2012-09-10 2014-09-05 Kp1 CONCRETE PREDALLE FOR CONSTRUCTION OF BUILDING FLOORS

Also Published As

Publication number Publication date
ES2888405T3 (en) 2022-01-04
FR3033812B1 (en) 2020-03-27
EP3070223A1 (en) 2016-09-21
PL3070223T3 (en) 2022-01-10
FR3033812A1 (en) 2016-09-23
PT3070223T (en) 2021-10-18

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