EP2873781A1 - Permanent form wall with rigid connecting means - Google Patents

Abstract

The invention relates to a formwork wall (1): - comprising: - two skins (2; 3) spaced apart and an internal volume (5); - means (6) for connecting these skins (2; 3); - Rigid means (7) connecting this wall (1) with another wall (1 ') juxtaposed, such rigid connecting means (7) being movable between a retracted position and an extended position; - Means (8) for mounting such rigid connecting means (7) movably relative to the skins (2; 3). This wall is characterized in that the means (8) for mounting comprise, on the one hand, at least one flexible element (9) comprising a fixed portion (90) and a movable portion (91) and, on the other hand, at least one means (11) for fixedly securing such a rigid connecting means (7) and the movable portion (91).

Description

The present invention relates to a formwork wall having at least one rigid means for connecting the wall with another similar wall immediately juxtaposed.

This invention relates to the field of building and, more particularly, to the manufacture, at the factory, of lost form walls intended to be conveyed to the construction site of a building for installation.

Many formwork walls are known for this purpose and intended to be positioned, in a juxtaposed manner, next to each other, more particularly for the realization of a facade or the like.

It will be observed that, within such a juxtaposition, the walls with lost formwork are usually connected in pairs, this by means of connecting means extending inside the internal volume of these two walls.

To do this, a first solution consists, after having juxtaposed the two walls with formwork lost on site, to introduce, within the internal volume of these two walls and from their upper end, connecting means extending then over at least part of their height, adopting the form of connecting steel or the like, and having, on the one hand, a first portion extending into the internal volume of one of the two walls juxtaposed and, d on the other hand, a second portion extending into the internal volume of the other juxtaposed wall.

The use of such connection means involves strict management consisting in particular of evaluating the appropriate amount of connection means necessary for the construction of a building, which moreover must correspond to an assignment nomenclature determined according to walls to equip. Such management also requires controlling the appropriate number of these connection means, to ensure the follow-up and the conformity of such a command when it is received, this in due time, but also to store these connection means. while managing such a stock. It is necessary to carry out such management both in the factory and during the transport of these means of connection on site but also on this site.

In addition, during the establishment of these connecting means inside the walls, it is necessary to mobilize at least one operator to ensure the proper implementation of such a connecting means, or to control such an implantation. . It will also be observed that such an installation can be difficult, if not impossible, because of the dimensions of the walls, variations in the thickness of the skins and / or the presence of obstacles (lifting hooks, connecting means, openings). Finally, this first solution can be considered only for walls devoid of connecting means (basket, beam or the like) near their side edges.

For such walls, a second solution consists, initially, in positioning a first wall formwork lost on site, this before equipping such a wall with at least one connecting means, extending inside the internal volume of this first wall, and adopting the form of connecting steel or the like. In a second step, one comes to juxtapose a second wall with formwork lost next to said first wall to, thirdly, ensure a displacement of this or these means of connection towards the second wall juxtaposed and in the internal volume of this- this, by shifting. In order to carry out such a movement, an operator acts on such a connecting means through openings in such a wall.

In addition to the fact that this second solution has the same disadvantages as those mentioned for the first solution and relating to the management and implementation of the connection means, this second solution also has other disadvantages. In particular, the movement of such a connecting means towards the other wall can be complex because of the difficulty of access to this connecting means through the openings and / or the presence of obstacles on the other wall. the trajectory of this connecting means. Finally, another disadvantage is that such a wall has openings that should be closed before pouring concrete in the internal volume of the wall, or even resume after pouring such concrete.

A third solution, described in the document FR-2942824 relates to a lost form wall comprising rigid connecting means slidably mounted between, on the one hand, a retracted position in which such a rigid connecting means is at least partially retracted inside the internal volume of the wall and, on the other hand, an extended position in which such rigid connecting means extends partly inside the internal volume of this wall and partly outside the wall, laterally with respect to the lateral edge of this wall. wall, and in the extension of the internal volume of this wall. After juxtaposing this wall next to another wall, it is necessary to move the rigid connecting means from the retracted position to the deployed position. To do this, we use a tool engaged inside the internal volume of the wall, this by the upper end of the wall. Through this tool, it then exerts traction on these rigid connecting means to ensure their displacement towards the deployed position. In fact, such a displacement can be complex because of the difficulties of access to these rigid means of connection and / or resistance to sliding of these means and / or the presence of obstacles on the trajectory of these means.

A fourth solution, described in the document FR-2965829 relates to a wall with lost formwork having means of connection with another wall juxtaposed, these connecting means being constituted by a flexible cable having a first portion extending inside the wall and a second portion extending outside this wall. In fact, such a connecting means does not make it possible to satisfy the mechanical requirements for mechanical connection between two walls, in particular with regard to the resistance to bending forces, shear and normal efforts exerted by a wall relative to another wall juxtaposed and bonded to the other wall by such connecting means.

The present invention is intended to overcome the disadvantages of the lost formwork walls of the state of the art.

• deux peaux, réalisées en béton ou analogue, disposées en regard l'une de l'autre, de manière sensiblement parallèle et espacée, ceci en sorte de définir entre elles un volume interne ;
• au moins un moyen pour le raccordement de ces deux peaux entre elles ;
• au moins un moyen rigide pour la liaison de ce mur avec un autre mur au moins similaire, juxtaposé et situé dans son prolongement, un tel moyen rigide de liaison équipant l'un au moins des côtés latéraux de ce mur et étant mobile en déplacement entre, d'une part, une position escamotée dans laquelle un tel moyen rigide de liaison est au moins partiellement escamoté à l'intérieur du volume interne de ce mur et, d'autre part, une position déployée dans laquelle un tel moyen rigide de liaison s'étend en partie à l'intérieur du volume interne de ce mur et en partie à l'extérieur de ce mur, latéralement par rapport au bord latéral de ce mur, et dans le prolongement du volume interne de ce mur ;
• des moyens pour monter un tel moyen rigide de liaison de manière mobile par rapport aux peaux du mur, ceci entre les positions escamotée et déployée.

For this purpose, the invention relates to a formwork wall comprising:

• two skins, made of concrete or the like, arranged facing one another, in substantially parallel and spaced manner, so as to define between them an internal volume;
• at least one means for connecting these two skins together;
• at least one rigid means for connecting this wall with another wall at least similar, juxtaposed and located in its extension, such a rigid connecting means equipping at least one of the lateral sides of the wall and being movable in displacement between on the one hand, a retracted position in which such a rigid connecting means is at least partially retracted within the internal volume of this wall and, on the other hand, an extended position in which such rigid connection means extends partly inside the internal volume of this wall and partly outside the wall, laterally with respect to the lateral edge of this wall, and in the extension of the internal volume of this wall;
• means for mounting such a rigid connecting means in a movable manner with respect to the skins of the wall, this between the retracted and deployed positions.

This wall with lost formwork is characterized in that the means for mounting comprise, on the one hand, at least one flexible element having a fixed portion relative to the skin of the wall and a movable portion relative to these skins and, on the other hand, at least one means for fixedly securing such a rigid connecting means and the movable portion of such a flexible element.

Another feature is that the rigid connection means or means comprise at least one rigid elongated element, in particular in the form of a bar, extending parallel to the skin of the wall.

Yet another characteristic relates to the fact that the rigid connection means or means adopt the shape of a "U" -shaped part or a frame and comprise, on the one hand, at least two rigid elongated elements, in particular parallel, and on the other hand, at least one connecting element of these rigid elongated elements.

According to another characteristic, the flexible element or elements consist of at least one elastic cable.

Thus, the formwork wall according to the invention comprises at least one rigid means for connecting this wall with another wall juxtaposed as well as means for mounting such rigid connection means movably with respect to the skin of the wall, this between the positions retracted and deployed. In fact, these mounting means comprise a flexible element provided with a fixed part relative to the skin of the wall and a moving part (with respect to these skins) which is secured to the rigid connecting means.

Such mounting means advantageously make it possible, during an operation of juxtaposing a wall next to another wall and in the event of the presence of an obstacle on the path of a rigid means of connection, to such a rigid means of binding to retract with respect to such an obstacle and, after the passage of this obstacle, to return to an extended position in which this rigid means of connection provides, between the two juxtaposed walls, an appropriate mechanical connection, particular meeting the requirements of resistance to the bending forces, shear and normal forces exerted by a wall relative to another wall juxtaposed and bonded to the other wall by such connecting means

Other objects and advantages of the present invention will become apparent from the following description. relating to embodiments which are given only as indicative and non-limiting examples.

• la figure 1 est une vue schématisée et en élévation d'un mur à coffrage perdu conforme à l'invention ;
• la figure 2 est une vue similaire à la précédente et correspondant à une mise en place, de manière juxtaposée, d'un mur illustré figure 1 à côté d'un autre mur similaire ;
• la figure 3 est une vue schématisée, partielle et de dessus, d'un mur illustré figure 1, ceci en position déployée des moyens rigides de liaison ;
• la figure 4 est une vue schématisée, partielle et de dessus, d'un mur comportant des moyens rigides de liaison adoptant une position déployée dans laquelle ils s'étendant dans le volume interne d'un autre mur juxtaposé ;
• la figure 5 est une vue schématisée correspondant à un détail des moyens pour monter un tel moyen rigide de liaison de manière mobile par rapport aux peaux du mur.

The understanding of this description will be facilitated by reference to the appended drawings in which:

• the figure 1 is a schematic and elevational view of a formwork wall according to the invention;
• the figure 2 is a view similar to the previous one and corresponding to an implementation, in a juxtaposed way, of an illustrated wall figure 1 next to another similar wall;
• the figure 3 is a schematic, partial and top view of an illustrated wall figure 1 this in the deployed position rigid connecting means;
• the figure 4 is a schematic view, partial and from above, of a wall comprising rigid connecting means adopting an extended position in which they extend into the internal volume of another juxtaposed wall;
• the figure 5 is a schematic view corresponding to a detail of the means for mounting such rigid connection means movably relative to the skin of the wall.

The present invention relates to the field of the building and, more particularly, that of the manufacture, at the factory, of lost form walls intended to be conveyed to the construction site of a building to be located there.

In a manner known per se, such a formwork wall 1 comprises two skins (2; 3), made of concrete or the like.

According to a first embodiment, at least one of these two skins (2; 3) receives, internally, an armature 4 which, in known manner, extends at least inside at least one such skin (2; 3).

However, according to a second embodiment, at least one of these two skins (2; 3) may be made of a material (high-performance fiber-reinforced concrete, ultra-high performance fiber-reinforced concrete or the like) exhibiting characteristics such as this skin. (2; 3) may be devoid of such a frame.

Be that as it may, the two skins (2; 3) of such a wall 1 with lost formwork are arranged facing one (2; 3) of the other (3; 2) substantially in parallel and spaced, this so as to define between them an internal volume 5.

It is, more particularly, within the internal volume 5 of such a wall 1 that a hydraulic mixture is poured (more particularly concrete, in particular an insulating concrete or the like), this after positioning, in a juxtaposed way, of this wall 1 next to another wall 1 'similar, and preferably and identical.

According to another characteristic, such a formwork wall 1 also comprises at least one means 6 for connecting these two skins (2; 3) to each other. Such a connecting means 6 has at least two ends (60; 61, 61 ') of which at least 60 is embedded in a skin 2 of the wall 1 while at least one other (61, 61') is embedded. in the other skin 3 of this wall 1.

In known manner, such a connecting means 6 can take the form of a connector, a basket, a beam ( Figures 3 and 4 ) or the like.

It will be observed that when a skin (2; 3) of the wall 1 incorporates a reinforcement 4 as mentioned above, this skin (2; 3) may, according to a preferred embodiment, comprise means (not shown). for fastening such an armature 4 to at least one such connection means 6 of the two skins (2; 3) of this wall 1. Such a securing means may be constituted by a ligature, a crimping, a weld or the like .

Yet another feature is that such a formwork wall 1 comprises at least one rigid means 7 for connecting the wall 1 with another wall 1 'at least similar (or identical), juxtaposed and located in its extension .

In this regard, it will be observed that these juxtaposed walls can then be positioned in the extension 1 of the other 1 ', this in an aligned manner or at an angle between them, in particular by being positioned in "L" or, again, in "T".

It will be observed that such a rigid connecting means 7 equips at least one of the lateral sides (10; 10 ') of the lost form wall 1. Preferably, such a formwork wall 1 comprises a plurality of these rigid means. link 7 which can then be distributed, particularly regularly, at at least one of these lateral sides (10, 10 ') of the wall 1.

Another feature is that such a rigid connecting means 7 is movable in displacement between, on the one hand, a retracted position in which such a rigid connecting means 7 is at least partially retracted inside the internal volume 5 of the formwork wall 1 and, secondly, an extended position in which such a rigid connecting means 7 extends partly inside the internal volume 5 of the wall 1 and partly outside of this wall 1, laterally with respect to the lateral edge of the wall 1, and in the extension of the internal volume 5 of the wall 1. In fact, in this deployed position, such a connecting means 7 is intended to extend, also, inside the internal volume 5 'of the other juxtaposed wall 1' ( figures 2 and 4 ).

The lost form wall 1 also comprises means 8 for mounting such a rigid connecting means 7 movably relative to the skins (2; 3) of the wall 1, this between the retracted and deployed positions mentioned above.

According to the invention, these means 8 for mounting such a rigid connecting means 7 in a mobile manner comprise, on the one hand, at least one flexible element 9 comprising a fixed portion 90 with respect to the skins (2; 3) of the wall 1 and a movable portion 91 relative to these skins (2; 3) and, secondly, at least one means 11 for fixedly securing such a rigid connecting means 7 and the movable portion 91 of such an element flexible 9.

Another feature of the invention consists in that the rigid connecting means or means 7 comprise at least one rigid elongate element (that is to say of elongate shape) (70; 70 '), in particular in the form of a bar, extending parallel to the skins (2; 3) of the wall 1.

In fact, the rigid connection means or 7 may take the form of a "U" -shaped part or a frame, in particular of square, rectangular shape (preferred embodiment illustrated in the appended figures) or other. This or these rigid connecting means 7 comprise, on the one hand, at least two longiform elements (70; 70 '), in particular parallel (between them and / or the skins of the wall), and, on the other hand, at least a connecting element (71; 71 ') of these elongated elements (70; 70').

Thus, and when such a rigid connecting means 7 adopts the shape of a frame (square, rectangular or other), it comprises, then, two elongated elements (70; 70 ') and two connecting elements (71 71 ') of these two elongate elements (70; 70').

A particular embodiment consists in that a rigid connecting means 7 in the form of such a "U" -shaped piece or of such a frame can then be made from a single bar, in particular by folding .

It will be observed that the rigid connecting means or means 7 are preferably made of a metallic material, in particular steel, more particularly stainless steel.

As mentioned above, the formwork wall 1 comprises means 8 for mounting such rigid connecting means 7 movably relative to the skins (2; 3) of the wall 1. According to the invention, these means 8 to mount comprise at least one flexible element 9, this or these flexible elements 9 being constituted by at least one elastic cable.

This or these flexible elements 9 are looped and comprise, on the one hand, two strands (92; 92 ') constituting the fixed portion 90 of this flexible element 9 and, on the other hand, a connecting portion 93 of these two strands (92; 92 '), in the extension of which 93 are these two strands (92; 92'), and constituting the movable portion 91 of such a flexible element 9.

In fact, this or these flexible elements 9 are made of a metallic material, in particular steel, more particularly stainless steel.

As mentioned above, the means 8 for mounting further comprise at least one means 11 for fixedly securing the rigid connecting means 7 (more particularly at least one rigid elongated element 70; 70 'that comprises such a rigid means 7) and the movable portion 91 of the flexible element 9.

In this regard, it will be observed that the means or 11 for fixedly securing the movable portion 91 of the flexible element or elements 9 and the rigid connection means or 7 are constituted by crimping, ligation, welding or the like.

As mentioned above, the flexible element or elements 9 comprise a fixed portion 90 with respect to the skins (2; 3) of the wall 1.

Also and according to an additional feature of the invention, the wall 1 then also comprises means 12 for fixedly securing the fixed portion 90 of the flexible element or elements 9 and, as the case may be, at least one skin (2; 3) of the wall 1 and / or at least one means 6 for connecting these two skins (2; 3).

In this regard, it will be observed that the means for fixedly securing said fixed portion 90 of such a flexible element 9 and at least one skin (2; 3) of the wall 1 are constituted by the material, forming part of the composition of a such skin (2; 3), and in which is embedded at least a portion of this fixed portion 90 of the flexible element 9.

As mentioned above, this fixed portion 90 of the flexible element 9 may be constituted by two strands (92; 92 ') of such a flexible element 9 shaped loop.

In such a case, the means 12 for fixedly securing said fixed portion 90 of the flexible element 9 and at least one skin (2; 3) of the wall 1 are constituted by means for fixedly securing at least a part of these elements. two strands (92; 92 ') and at least one such skin (2; 3) of the wall 1, more particularly by means for fixedly securing, on the one hand, at least a portion of one of these 92 strands ( 92, 92 ') and one of the skins (2; 3) of the wall 1 and, secondly, at least a portion of the other strand 92' and the other skin 3 of the wall 1.

As mentioned above, the lost form wall 1 may comprise at least one armature 4 extending inside at least one skin (2; 3) of the wall 1, or even inside the volume internal 5 of this wall 1.

Such an armature 4 can then take the form of a lattice or the like extending inside such a skin (2; 3). However, such a frame 4 may, again, take the form of a basket or a beam, comprising, on the one hand, portions extending inside the two skins (2; 3) of this wall 1 and, on the other hand, parts extending inside the internal volume 5 of the wall 1 and constituting a connecting means 6 of these two skins (2; 3) of the wall 1.

Anyway, when the formwork wall 1 according to the invention comprises at least one such armature 4, this wall 1 may, then, also include means 12 to firmly secure the fixed portion 90 of the element flexible 9 and at least one such frame 4.

In this regard, it will be observed that the means 12 for fixedly securing said fixed portion 90 of the flexible element 9 and at least one such reinforcement 4 (more particularly in the form of a lattice as mentioned above) may be constituted by means 12 to firmly secure the two strands (92; 92 ') constituting this fixed portion 90 and at least one such armature 4, more particularly by means 12 for fixedly securing, on the one hand, at least a part of the one 92 of these strands (92; 92 ') and a frame 4 extending inside one of the skins (2; 3) of the wall 1 and, on the other hand, at least a part of the another strand 92 'and another armature 4 extending inside the other skin 3 of this wall 1. However, and in the case of a frame 4 (basket or beam) constituting a connecting means 6, the means 12 to make integral may also be constituted by means 12 for fixedly securing, on the one hand, at least a portion of one 92 of these strands (92; 92 ') and a part of this armature 4 extending inside one of the skins (2; 3) of the wall 1, or even a part of this armature 4 (constituting a connection means 6). extending into the inner volume 5 and, on the other hand, at least a part of the other strand 92 'and another part of this armature 4 extending inside the other skin 3 of this wall 1 , or even a part (constituting a connection means 6) of this armature 4 extending into the internal volume 5.

In these cases, the fixed portion 90 of the flexible element 9 is fixedly secured, on the one hand, with at least one armature 4 by means 12 to fixedly secure this fixed portion 90 of the element flexible 9 and at least one such armature 4 and, at the other, at least one skin (2; 3) of the wall 1 being at least partially embedded in the material of at least one such skin (2; ) inside which is also embedded at least a part of such an armature 4.

According to an additional characteristic, the means 12 for fixedly securing the fixed portion 90 of the flexible element or elements 9 and, as the case may be, the connecting means 6 or the armature 4 consist of crimping, ligation, welding or similar.

According to a first embodiment, the wall 1 comprises, again, means for mounting the rigid connection means or 7 pivotally on, as appropriate, at least one connecting means 6 or at least one armature 4 extending inside at least one skin (2; 3) of the wall 1 as well as inside the internal volume 5 of this wall (more particularly on a part of this armature 4 extending inside of this internal volume 5 and constituting a connection means 6).

Such means for pivoting may be a ligature or the like.

A particular embodiment consists in the fact that these means for pivoting are constituted by the means 12 for fixedly securing said fixed portion 90 of the flexible element 9 and, as the case may be, such a connecting means 6 or such armature 4 (more particularly a part of this armature 4 extending inside the internal volume 5 and constituting a connecting means 6).

However and according to another type of embodiment, the wall 1 is devoid of such means for pivotally mounting the rigid connecting means 7. In such a case, this or these connecting means 7 are free moving relative to the at least one connection means 6 and / or with respect to at least one armature 4 (more particularly with respect to a part of this armature 4 extending inside the internal volume 5 and constituting a connecting means 6).

In such a case and according to another characteristic of the invention, the formwork wall 1 comprises at least one means for limiting the displacement of the rigid connection means or 7 and / or the movable portion 91 of the flexible element or elements. 9.

In fact, such a means for limiting the displacement is constituted by a member extending perpendicularly to the two skins (2; 3) of the wall 1 and inside the internal volume 5 of the wall 1.

In this regard, it will be observed that such a member may then be constituted by a part of a frame 4 or a means 6 for connecting these two skins (2; 3), more particularly by a part of a connector, a basket or a beam.

It has been illustrated figure 2 the positioning of a lost form wall 1 according to the invention juxtaposed with another wall form 1 'lost formwork.

During this positioning the rigid connection means or 7 and / or the movable portion 91 of the flexible element or elements 9 (that includes the lost form wall 1) come into contact with an obstacle, which comprises the other wall 1 ' , and that can be constituted by a connecting means or by an armature.

Under the effect of the contact with this obstacle and the movement of the wall 1 (more particularly the descent of this wall 1), the flexible nature of the flexible element or elements 9 allows a displacement of this or these rigid means of connection 7 and / or or the movable portion 91 of or flexible elements 9 from a deployed position to a position at least partially retracted.

By continuing the movement (the descent) of the wall 1, the contact with the obstacle is interrupted and this or these rigid means of connection 7 and / or the movable portion 91 of or flexible elements 9 pass from the at least partially retracted position in the deployed position. This passage takes place under the effect of the gravity (more particularly the weight of this or these rigid means of connection 7 and / or the movable portion 91 of or flexible elements 9) and / or the elastic nature of this or These flexible elements 9. This weight and / or this elastic nature advantageously constitute means of return in the deployed position of this or these rigid connecting means 7 and / or of the movable portion 91 of this or these flexible elements 9.

Claims (12)

Lost form wall (1): - comprising: - two skins (2, 3), made of concrete or the like, disposed facing one (2; 3) of the other (3; 2), substantially parallel and spaced, so as to define between them an internal volume (5); at least one means (6) for connecting these two skins (2; 3) to each other; at least one rigid means (7) for connecting this wall (1) with another wall (1 ') at least similar, juxtaposed and located in its extension, such a rigid connecting means (7) equipping one at least lateral sides (10, 10 ') of this wall (1) and being movable in displacement between, on the one hand, a retracted position in which such a rigid connecting means (7) is at least partially retracted at inside the inner volume (5) of this wall (1) and, on the other hand, an extended position in which such rigid connecting means (7) extends partly inside the internal volume (5) of this wall (1) and partly outside this wall (1), laterally with respect to the lateral edge of this wall (1), and in the extension of the internal volume (5) of this wall (1); - Means (8) for mounting such rigid connecting means (7) movably relative to the skins (2; 3) of the wall (1), this between the positions retracted and deployed; - characterized in that the means (8) for mounting comprise, on the one hand, at least one flexible element (9) having a fixed portion (90) relative to the skin (2; 3) of the wall (1) and a movable portion (91) with respect to these skins (2; 3) and, secondly, at least one means (11) for fixedly securing such a rigid connecting means (7) and the movable portion ( 91) of such a flexible element (9). Formwork wall (1) according to claim 1, characterized in that the rigid connection means or means (7) comprise at least one rigid elongated element (70; 70 '), in particular in the form of a bar, extending parallel to the skins (2; 3) of the wall (1). Formwork wall (1) according to one of the preceding claims, characterized in that the rigid connection means (7) take the form of a "U" -shaped part or frame and comprise on the one hand, at least two rigid elongate elements (70; 70 '), in particular parallel, and, on the other hand, at least one connecting element (71) of these rigid longiform elements (70; 70'). Formwork wall (1) according to any one of the preceding claims, characterized in that the flexible element or elements (9) consist of at least one elastic cable. Formwork wall (1) according to any one of the preceding claims, characterized in that the flexible element or elements (9) are loop-shaped and comprise, on the one hand, two strands (92; 92 ') constituting the fixed portion (90) of such a flexible element (9) and, secondly, a connecting portion (93) of these two strands (92; 92 '), in the extension of which (93) are located these two strands (92; 92 '), and constituting the movable portion (91) of such a flexible element (9). Formwork wall (1) according to any one of the preceding claims, characterized in that the wall (1) comprises means (12) for fixedly securing the fixed portion (90) of the flexible element or elements (9). and, as the case may be, at least one skin (2; 3) of the wall (1) and / or at least one means (6) for connecting these two skins (2; 3). Formwork wall (1) according to any one of the preceding claims, characterized in that the wall (1) comprises, on the one hand, at least one armature (4) extending inside of least one skin (2; 3) of the wall (1), or even inside the internal volume (5) of this wall (1), and, secondly, means (12) for fixedly securing the portion fixed (90) of the flexible element (s) (9) and at least one such reinforcement (4). Wall formwork (1) according to any one of claims 6 or 7, characterized in that the means (12) for fixedly securing the fixed portion (90) of the flexible elements (9) and, according to the in this case, the connecting means (6) or the armature (4) consist of crimping, ligation, welding or the like. Formwork wall (1) according to any one of the preceding claims, characterized in that the means (11) for fixedly securing the movable portion (91) of the flexible element or elements (9) and the one or more rigid connecting means (7) consist of crimping, ligation, welding or the like. Formwork wall (1) according to any one of the preceding claims, characterized in that the rigid connection means (7) and / or the flexible element or elements (9) are made of a metallic material, in particular steel, more particularly stainless steel. Formwork wall (1) according to any one of the preceding claims, characterized in that the wall (1) comprises at least one means for limiting the displacement of the rigid connection means (7) and / or the movable portion (91) of the flexible member (s) (9). Formwork wall (1) according to any one of the preceding claims, characterized in that the wall (1) comprises means for mounting the rigid connection means (7) pivotally on, as the case may be, at the at least one connecting means (6) or at least one armature (4) extending inside at least one skin (2; 3) of the wall (1) as well as inside the internal volume ( 5) of this wall (1).

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