EP0164296A2 - Sheet pile wall made of cold-bent units - Google Patents

Abstract

Wall, characterised in that it essentially consists of U-profile (1) and/or Z-profile (2) elements made by cold-bending on a press, and of linking elements (3) in several parts (3') assembled together, and the edges (4) of which accommodate the edges of the U-profile (1) or Z-profile (2) elements. <IMAGE>

Description

Cold bent sheet pile wall

The present invention relates to the field of support, in particular in the building industry and public works, and relates to a sheet pile wall with cold bent elements.

As the technical requirements demanded higher and higher modules, it turned out that the existing sheet pile profiles, namely in U or Z shape, were very quickly limited in size by the possibilities of hot rolling. Thus, the U-shaped profiles cannot generally exceed a depth of the order of 250 mm, and the Z-shaped profiles cannot exceed a height of 500 mm.

The attempts made to date to produce profiles of larger dimensions have always proved to be disappointing, and, practically, beyond the abovementioned limit values a correct profile cannot be obtained, and the rolling rolls break.

In addition, the creation of a hot-rolled profile requires the simultaneous creation of a number of cylinders, and the heaviness of such a manufacturing process is easily conceivable, when it is known that the U-profile is rolled in one large number of different profile dimensions, each of which requires six to eight cylinders rolling, the wear of which is relatively rapid.

In addition, the creation of a hot rolled profile requires an installation time of the rolling rolls corresponding to a factory position, so that all the small orders must be grouped to be fulfilled, which often gives rise to excessively long waiting times.

There are also cold-formed sheet piles with profiles substantially similar to those of rolled sheet piles. Profiling of such sheet piles is carried out by means of series of rollers reproducing the profile complementary to the desired profile with accentuation of the relief of the rollers in the direction of the exit of the sheet piles, where said profile corresponds exactly to that of said sheet piles.

However, this embodiment by cold profiling does not currently make it possible to obtain profile thicknesses as large as in the case of hot rolling, so that an improvement of the module is not possible.

Finally, the junction between the existing sheet piles is carried out, either by cooperation of shape of the edges, namely by ball joint. or with hooks, either by means of attached laminated elements.

Finally, the manufacture of such elements and sheet piles according to the aforementioned methods is difficult and expensive, because it requires significant finishing work. Furthermore, the joining of sheet piles by jointing and welding is complex.

The present invention aims to overcome these drawbacks.

It has, in fact, for its purpose a sheet pile wall characterized in that it is essentially constituted by U-shaped and / or Z-shaped elements produced by cold bending on a press, and by connecting elements in several parts assembled together, and the edges of which house the edges of U or Z profile elements.

According to an alternative embodiment of the invention, the edges of the profiled elements are each provided with a self-tightening joint constituted by the connecting part and by a secondary profile having two parallel wings connected to each other by a core inclined by relative to the planes containing these wings, this secondary profile being fixed on the corresponding edge of the elements profiled by one of its parallel wings and its core extending parallel to the connecting part at a distance slightly greater than the thickness of said part in a plane parallel to the plane containing these parts, and the connection between two profiled elements is effected by simple fitting of the joints of said profiled elements aligned head to tail.

According to another characteristic of the invention, the profiled elements forming the sheet pile wall have a cross section in S or angle.

According to another alternative embodiment of the invention, one of the edges of the profiled elements is provided with a self-tightening joint constituted by the connecting part and by an additional profile in the form of a connected angle iron, near the line. for folding the connecting part, with a prediction between said folding line and the profile wing of a distance slightly greater than the wall thickness of the elements, at the corresponding edge, and the other edge of said elements has a part of connection folded outwards substantially at right angles, this part cooperating with the seal formed on the other edge by the connection part and the additional profile.

According to another characteristic of the invention, the edges of the profiled elements are fitted with molded, laminated, mechanically welded or other staples.

• la figure 1 est une vue en plan et en coupe d'un mur de palplanches conforme à l'invention ;
• la figure 2 est une vue en coupe à plus grande échelle d'un élément à profil en U ;
• la figure 3 est une vue analogue à la figure 2 d'un élément à profil en Z ;
• la figure 4 est une vue partielle en coupe d'un élément de liaison ;
• la figure 5 est une vue en coupe d'une partie d'un élément de liaison ;
• la figure 6 est une vue en coupe et en plan d'un mur de palplanches conforme à l'invention ;
• les figures 7 et 8 représentent, en plan et en coupe, deux variantes de réalisation des éléments profilés ;
• la figure 9 montre, à plus grande échelle, l'assemblage de deux joints en position de repos ;
• la figure 10 est une vue analogue à celle de la figure 9 de l'assemblage en position de traction ;
• les figures 11 et 12 représentent, en plan et en coupe, deux variantes de réalisation de l'invention
• la figure 13 est une vue en coupe et en plan d'un mur de palplanches conforme à l'invention ;
• la figure 14 est une vue partielle en coupe, à plus grande échelle, de l'assemblage de deux palplanches au niveau d'un joint ;
• la figure 15 représente, dans une vue analogue à celle de la figure 13, des variantes de réalisation du joint entre palplanches, et
• la figure 16 représente une autre variante de réalisation de l'invention.

The invention will be better understood thanks to the description below, which relates to preferred embodiments, given by way of nonlimiting examples, and ex folded with reference to the accompanying schematic drawings, in which:

• Figure 1 is a plan view in section of a sheet pile wall according to the invention;
• Figure 2 is an enlarged sectional view of a U-shaped element;
• Figure 3 is a view similar to Figure 2 of a Z-shaped element;
• Figure 4 is a partial sectional view of a connecting element;
• Figure 5 is a sectional view of part of a connecting element;
• Figure 6 is a sectional and plan view of a sheet pile wall according to the invention;
• Figures 7 and 8 show, in plan and in section, two alternative embodiments of the profiled elements;
• Figure 9 shows, on a larger scale, the assembly of two seals in the rest position;
• Figure 10 is a view similar to that of Figure 9 of the assembly in the traction position;
• Figures 11 and 12 show, in plan and in section, two alternative embodiments of the invention
• Figure 13 is a sectional and plan view of a sheet pile wall according to the invention;
• Figure 14 is a partial sectional view, on a larger scale, of the assembly of two sheet piles at a joint;
• FIG. 15 represents, in a view similar to that of FIG. 13, alternative embodiments of the joint between sheet piles, and
• FIG. 16 represents another variant embodiment of the invention.

In accordance with the invention, and as shown more particularly, by way of example, FIG. 1 of the appended drawings, the sheet pile wall is essentially constituted by elements with a U 1 and / or Z 2 profile, which are produced by cold folding on a press, and by connecting elements 3 formed by several parts 3 ′, which are assembled together, and whose edges 4 house the edges of the elements with a U-shaped profile 1 or Z 2.

The elements with a U 1 and Z 2 profile are produced from sheet metal plates, the length of which corresponds to the length of elements 1-2, and the width of which corresponds to the development of the profiles of said elements, the longitudinal edges 1 ' and 2 'of said elements 1-2 having an inclined connecting part 1 "- 2", these plates being cold folded on a press (Figures 2 and 3).

These connecting elements 3 (Figures 4 and 5) are advantageously made up of two parts 3 'assembled together by bolting, riveting, bonding, or welding, each part 3' having symmetry with respect to its longitudinal axis, its core 3 " being extended on both sides by edges 4 in the form of a recess ending in a curved wing in the opposite direction, these edges 4 conforming to the shape of the connecting parts 1 "- 2" of the edges 1 '- 2' elements 1 - 2, and the base of their free end having a drop in relation to the underside of the core 3 "equal to half the thickness of the edges 1 '- 2' of the elements 1 - 2 to be assembled .

According to another characteristic of the invention, the connecting elements 3 are constituted by a part 3 ′ having the edges 4, and by a flat sheet metal plate 5 assembled together (in phantom in Figure 5).

Thanks to these two embodiments of the elements 3, it is possible to obtain a wide range of thicknesses of elements to be connected, by simple assembly of parts 3 'different with regard to the height of their edges 4, but identical as regards their width, or by combination of such parts 3 ¹ with flat plates 5, so that the number of parts 3 'can be relatively small.

The parts 3 ′ of the elements 3 are produced by folding, by cold profiling, or even by rolling.

To allow easy joining of elements 1 and 2, the sheet constituting them is advantageously bevelled at its transverse ends before folding. Thus, it is possible to very easily carry out splicing by welding on site, the ends to be spliced no longer requiring any preliminary intervention to welding.

In accordance with an alternative embodiment of the invention, to increase the resistance to unclipping, the connecting parts 1 "- 2" of the edges 1 '- 2' are advantageously provided, at regular intervals, with fingers 6 projecting in reverse direction and produced by cutting its edges and counter-folding, the spaces between the fingers 6 and the parts 1 "- 2" being closed by a sealing putty, or lugs in the form of wedges added by welding or by bonding, with an inclination opposite to that of parts 1 "- 2", on said parts 1 "- 2" (Figure 4).

The frequency and the number of added fingers 6 or pins depends on the mechanical stresses.

In addition, in accordance with another characteristic of the invention, in the space delimited, on the one hand, by the edges 4 of the parts 3 'of the connecting elements 3, and, on the other hand, by the connecting parts 1 "- 2", a sealant and / or bonding product is injected. Thus, it is possible to guarantee a perfect seal of a sheet pile wall.

Thanks to this embodiment, it is possible to erect sheet pile walls formed of U and / or Z elements, the module of which can be considerably improved compared to known profiled elements. In fact, due to an embodiment by folding, the depth and, respectively, the height of the U and Z profiles are practically no longer subject to limits other than those of the dimensions of the plates available, the thickness of these plates may be equal to the largest possible thickness by rolling.

In addition, the considerable increase in the module makes it possible to manufacture elements which can advantageously replace the composite curtains, the realization of which is extremely expensive.

Finally, the embodiment according to the invention allows perfectly identical profiled elements to be obtained, requiring for their manufacture only a preliminary adjustment of the press, then a prior control of the sheet, the rest of the operations being carried out by the machine perfectly reproducible.

According to an alternative embodiment of the invention, and as shown more particularly in Figure 6 of the accompanying drawings, the U-shaped sections 1 or Z 2, constituting the sheet pile wall, are each provided on their edges 1 ' or 2 'of a self-tightening joint 7, which is constituted by the connecting part 1 "or 2" from the edges 1' - 2 'of said elements 1 - 2, and by a secondary profile 8, which has two wings parallel 8 'located in different planes and connected to each other by a core 8 ". This secondary profile 8 is fixed to the edge 1' or 2 'corresponding by one of its wings 8', so that its core 8 "extends at a distance from the connecting part 1" - 2 "slightly greater than the thickness of said parts 1" - 2 ", and in a plane parallel to the plane containing these parts 1" - 2 ". The connection of profiled elements-1 or 2 between them can thus be carried out in head-to-tail position by simple fitting of their joint.

According to another characteristic of the invention, and as shown in FIGS. 7 and 8, the profiled elements forming the sheet piles have an S 9 or an angle section 10. Such profiles provided with seals 8 allow, on the one hand, making sheet piles with very high modules, in the case of an S 9 section profile in particular, and, on the other hand, making an angular connection between different profile elements in the case of an angle section 10.

To make the joint 7, the connecting parts 1 ", 2", 9 "or 10" of the edges of the profiled elements 1, 2, 9 or 10 are advantageously folded over a portion of width between 50 mm and 100 mm, at an angle between 10 ° and 70 ° and preferably from 30 ° to 35 ° relative to the plane of the adjacent edge, and the secondary profile 8 is obtained by folding a flat plate so that its wings 8 'are parallel to each other and extend on either side of the core 8 "at an angle corresponding to the folding angle of the connecting parts 1", 2 " , 9 "and 10".

The connection between the secondary profile 8 and the corresponding edge of the profile element 1, 2, 9 or 10 is carried out by welding, by riveting, by bolting, or the like.

For example, for a profile element thickness of 15 mm, the length of the connecting parts 1 ", 2", 9 "or 10" is advantageously 60 mm, and their inclination relative to the adjacent edge is, preferably from 30 ° to 35 °.

The assembly of the profiled elements provided with seals 7 in accordance with the invention is carried out head to tail, as shown in the accompanying drawings. Figures 9 and 10 show, on a larger scale, such an assembly, respectively in the rest position and in the traction position.

In the first case, it clearly appears that the connecting part 1 "of one of the joints 7 is inserted with a slight clearance between the part 1" and the core 8 "of the secondary profile 8 of the other joint, l 'wing 8' free of this profile 8 extending parallel to the edge adjacent to said part 1 ". The same remark must be made with regard to part 1 "of the other seal 7.

When the assembly is under tension, that is to say, for example, when a load is exerted on the profiled elements, the latter tend to spread apart in the direction of unclipping. The seals 7 are then brought into the position shown in FIG. 10, in which the connecting parts 1 "of the profiled elements are pressed against each other, and the outside of the edges of the profiled elements is pressed against the inner face of the wings 8 'of the secondary profiles 8, which exert a spring effect on said edges, achieving a blocking of the joints, which is all the stronger as the traction increases. In addition, this blocking promotes good sealing at the joints.

Thus, the seal 7 according to the invention makes it possible to obtain a substantial increase in the resistance to unclipping, which is particularly advantageous during implementation to alleviate the phenomena of torsion occurring during threshing.

In accordance with another characteristic of the invention, and as shown in FIGS. 11 and 12, the seals 7 are produced in the form of independent parts which can, on the one hand, be fixed by welding, by gluing, or the like, on a metallic support 11, profiled, or other, used for fixing elements of wood 12 or any other material, or, on the other hand, being anchored in a concrete part 13.

Such an embodiment allows all types of walls to be obtained, in any material by simple addition of seals 7 to the edges of the constituent elements of the walls, on site or during the pouring of these elements when they are made of concrete.

According to another characteristic of the invention, the faces of the connecting parts 1 "- 2" - 9 "- 10" and of the corresponding wing 8 'of the secondary profile 8 are advantageously provided with ridges intended to increase their coefficient of grip. Thus, the resistance to unclipping the seals 7 is significantly improved.

Thanks to such a constitution, it is possible to make sheet pile walls, or screen, the module of which said sheet piles can be greater than 4,000 cm3. Thus, it is possible to avoid resorting to the construction of composite walls in a box and / or reinforced by the addition of tubes, or other profiled elements with a high moment of inertia.

According to another alternative embodiment of the invention, and as shown more particularly in Figures 13 and 14 of the accompanying drawings, one from edges 1 ¹ of elements 1 is provided with a self-tightening joint, which is constituted by the connecting part 1 "and by an additional profile 14. This profile 14 is in the form of an angle which is connected to the corresponding edge near the fold line of the connecting part 1 "with provision between said fold line and the wing of the profile 14 by a distance slightly greater than the wall thickness of the elements 1. The other edge 1 'of the elements 1 has a connecting part 15, which is folded outwards, substantially at a right angle, and which cooperates with the aforementioned joint.

The folding angle of the connecting parts 1 "and 15 is variable depending on the characteristics of the profiles to be assembled, and the additional profile 14 can be with equal or unequal wings, its dimensions also depending on the profiles to be assembled.

According to another characteristic of the invention, the additional profile 14 can advantageously be reinforced by providing on the outer part of its attachment wing to the wing 1 ′ of the profile 1 a reinforcement 17 in the form of a profile fixed on the wing 1 ′ and on the profile 14 and applying to the latter, or in the form of a bracing, this reinforcement 17 being continuous or discontinuous depending on the force exerted (FIG. 14).

In the hollow obtained inside the joint, after assembly, it is possible to mount a tube 18 for launching and / or injection, which is advantageously fixed on the male part formed by the connecting part 15 and the wing. 1 'correspondent.

When the joint according to the invention is in tension, the male part comes into contact with the female part by the end of the part 15 which is supported substantially along the fold line of the part 1 ", by the internal face of the wing 1 'corresponding to the part 15 which bears against the internal face of the free wing of the profile 14, and by the external face of said wing l' which rests on the external edge of part 1 ". The disposition different support points is such that the composition of the forces subjects the female part to forces compatible with the various elements constituting it. In addition, the parts constituting the seal do not deform during unclipping so that reuse is possible.

The rotation of the male part, formed by the part 15 in the female part formed by the part 1 "and the profile 14, is variable as a function of the length of the part 1".

The launching and / or injection tube 18 which can be integrated into the male part makes it possible, on the one hand, to facilitate the implementation of sheet piling, in particular in difficult terrain, by launching simultaneously with threshing, and, d on the other hand, to inject into the empty space, after threshing a sealant such as cement, or a resin.

FIG. 15 represents an alternative embodiment of the invention, in which the edges 1 ′, 2 ′ of the profiled elements 1, 2 are provided with attached staples 16, which can be molded, laminated, mechanically welded, or the like.

These added staples 16 can be fixed, either on the edge of the edges 1 ′, 2 ′ or the connecting parts 1 ″, 2 ″, or on the internal or external face of the edges 1 ′, 2 ′ or parts 1 ″, 2 ". In the accompanying drawings, only one type of staple is shown, however, any type of staple can be used, chosen according to the particular conditions to be fulfilled.

The fastening of the clips 16 on the edges 1 ′, 2 ′ or on the parts 1 ", 2" can be carried out by welding or by gluing, in the workshop or on site. This embodiment makes it possible to make a choice of staple according to each need and to carry out the assembly in order to obtain an optimal result.

In accordance with another alternative embodiment of the invention, and as shown in FIG. 16, in order to obtain an increase in the module without increasing the dimension of the cold bent profiled elements, of the elements in Z 2 are assembled together by covering their wings 2 'and by engaging one of their connecting parts 2 "in a profile 14' in the form of an angle iron fixed by one of its wings to the core of the profile 2.

Of course, the invention is not limited to the embodiments described and shown in the accompanying drawings. Modifications remain possible, in particular from the point of view of the constitution of the various elements, or by substitution of technical equivalents, without thereby departing from the scope of protection of the invention.

Claims (23)

1. Sheet pile wall characterized in that it essentially consists of U-shaped profile elements (1) and / or Z (2) produced by cold folding on a press, and by connecting elements (3 ) in several parts (3 ') assembled together, and whose edges (4) house the edges of the U-shaped profile elements (1) or Z (2). 2. Wall according to claim 1, characterized in that the elements with U-shaped profile (1) and Z (2) are produced from sheet metal plates, the length of which corresponds to the length of the elements (1 - 2), and whose width corresponds to the development of the profiles of said elements, the longitudinal edges (1 '- 2') of said elements (1 - 2) having an inclined connecting part (1 "- 2"), _ these plates being folded cold on a press. 3. Wall according to any one of claims 1 and 2, characterized in that the connecting elements (3) are advantageously made up of two parts (3 ') assembled together by bolting, riveting, gluing, or welding, each part (3 ') having a symmetry with respect to its longitudinal axis, its core (3 ") being extended on both sides by edges (4) in the form of a recess ending in a wing curved in the opposite direction , these edges (4) matching the shape of the connecting parts (1 "- 2") of the edges (1 '- 2') of the elements (1 - 2), and the base of their free end having a difference in level with respect to the underside of the core (3 ") equal to half the thickness of the edges (1 '- 2') of the elements (1 - 2) to be assembled. 4. Wall according to any one of claims 1 and 3, characterized in that the connecting elements (3) are constituted by a part (3 ') having the edges (4), and by a flat sheet metal plate ( 5) assembled together. 5. Wall according to any one of claims 1 to 4, characterized in that the parts (3 ') of the elements (3) are produced by folding, by cold profiling, or by rolling. 6. Wall according to any one of claims 1 and 2, characterized in that to allow easy splicing of the elements (1 and 2) the sheet constituting them is advantageously bevelled at its transverse ends before folding. 7. Wall according to any one of claims 1 to 3, characterized in that to increase the resistance to unclipping, the connecting parts (1 "- 2") of the edges (1 '- 2') are advantageously provided, at regular intervals, fingers (6) projecting in reverse direction and produced by cutting its edges and back-folding, the spaces between the fingers (6) and the parts (1 "- 2") being closed with a putty of sealing, or wedge-shaped lugs added by welding or gluing, with an inclination opposite to that of the parts (1 "- 2") on said parts (1 "- 2"). 8. Wall according to any one of claims 1 to 3, characterized in that in the space delimited, on the one hand, by the edges (4) of the parts (3 ') of the connecting elements (3), and, on the other hand, through the connecting parts (1 "- 2"), a sealant and / or bonding product is injected. 9. Wall according to any one of claims 1 to 6 and 8, characterized in that the edges (1 '- 2') of the profiled elements (1 - 2) are each provided with a self-tightening joint ( 7) constituted by the connecting part (1 "- 2") and by a secondary profile (8) having two wings parallel (8 ') connected together by a core (8 ") inclined relative to the planes containing these wings, this secondary profile (8) being fixed on the corresponding edge (1' - 2 ') of the profiled elements (1 - 2 ) by one of its parallel wings (8 ') and its core (8 ") extending parallel to the connecting part (1" - 2 ") at a distance slightly greater than the thickness of said part (1 "- 2") in a plane parallel to the plane containing these parts (1 "- 2"), and the connection between two profiled elements (1 - 2) is effected by simple fitting of the joints of said profiled elements aligned head to tail. 10.Wall according to claim 9, characterized in that the profiled elements forming the sheet pile wall have a cross section in S (9) or angle (10). 11. Wall according to any one of claims 9 and 10, characterized in that, for the production of the joint (7), the connecting parts (1 ", 2", 9 "or 10") of the edges of the elements profiles (1, 2, 9 or 10) are advantageously folded over a portion of width between 50 mm and 100 mm at an angle between 10 ° and 70 ° and, preferably, from 30 ° to 35 ° relative to the plane from the adjacent edge, and the secondary profile (8) is obtained by folding a flat plate so that its wings (8 ') are parallel to each other and extend on either side of the core ( 8 ") at an angle corresponding to the folding angle of the connecting parts (1", 2 ", 9" and 10 "). 12. Wall according to any one of claims 9 and 11, characterized in that the connection between the secondary profile (8) and the corresponding edge of the profile element (1, 2, 9 or 10), is achieved by welding, riveting, bolting, or whatever. 13. Wall according to any one of claims 9 and 11, characterized in that for a profile element thickness of 15 mm, the length of the connecting parts (1 ", 2", 9 "or 10") is advantageously 60 mm, and their inclination relative to the adjacent edge is preferably from 30 ° to ₃₅ °. 14. Wall according to any one of claims 9 and 11, characterized in that the joints (7) are produced in the form of independent parts which can, on the one hand, be fixed, by welding, by gluing, or the like, on a metallic support (11), profiled, or other, used for fixing wooden elements (12) or any other material, or, on the other hand, being anchored in a concrete part (13). 15. Wall according to any one of claims 9 and 11, characterized in that the faces of the connecting parts (1 "- 2" - 9 "- 10") and the corresponding wing (8 ') of the profile secondary (8) are advantageously provided with ridges intended to increase their coefficient of adhesion. 16. Wall according to any one of claims 1 to 6 and 8 to 15, characterized in that one of the edges (1 ') of the profiled elements (1) is provided with a self-tightening joint constituted by the connecting part (1 ") and by an additional profile (14) in the form of a connected angle iron, near the fold line of the connecting part (1"), with provision between said fold line and the wing of the profile (14) from a distance slightly greater than the wall thickness of the elements (1), at the corresponding edge (1 '), and the other edge (1') of said elements (1) has a connecting part ( 15) folded outwards substantially at a right angle, this part (15) cooperating with the seal formed on the other edge (1 ') by the connecting part (1 ") and the additional profile (14). 17. Wall according to claim 16, characterized in that the folding angle of the connecting parts (1 ") and (15) is variable depending on the characteristics of the profiles to be assembled, and the additional profile (14) can be with equal or unequal wings, its dimensions also depending on the profiles to be assembled. 18. Wall according to any one of claims 16 and 17, characterized in that the additional profile (14) is advantageously reinforced by provision on the outer part of its wing for fixing to the wing (1 ') of the profile (1) a reinforcement (17) in the form of a profile fixed on the wing (1 ') and on the profile (14) and applying to the latter, or in the form of a brace, this reinforcement (17) being continuous or discontinuous depending on the force exerted. 19. Wall according to any one of claims 16 to 18, characterized in that, in the hollow obtained inside the joint, after assembly, is mounted a tube (18) for launching and / or injection, which is advantageously fixed on the male part formed by the connecting part (15) and the corresponding wing (l '). 20. Wall according to any one of claims 1 to 19, characterized in that the edges (1 ', 2') of the profiled elements (1, 2) are provided with attached staples (16) molded, laminated, mechanical -welded, or others. 21. Wall according to claim 20, characterized in that the attached clips (16) are fixed, either on the edge edges (1 ', 2') or connecting parts (1 ", 2"), or on the internal or external face of the edges (1 ', 2') or of the parts (1 ", 2"). 22. Wall according to any one of claims 20 and 21, characterized in that the fixing of the staples (16) on the edges (1 ', 2') or on the parts (1 ", 2") is carried out by welding or gluing, in the workshop or on site. 23. Wall according to any one of claims 1 to 19, characterized in that, in order to obtain an increase in the module without increasing the dimension of the cold-folded profiled elements, Z-shaped elements (2) are assembled together by overlap of their wings (2 ') and by engagement of one of their connecting parts (2 ") in a profile (14') in the form of an angle fixed by one of its wings on the web of the profile (2) .

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