EP0097659B1 - Monolithical three-dimensional structure made of expanded metal in particular for reinforcement of a building panel - Google Patents

Abstract

The prefabricated panel comprises a metal frame (1) which is an expanded metal skeleton according to a tridimensional structure comprising ribs (6) connected by jambs (57, 58, 67, 68) of which both ends of each of them remain integral with the ribs respectively of even row and odd row by forming linking nodes (79, 89), the distribution of said nodes when the metal is planar and not expanded being different from the repartition of the nodes projected on said plane when the metal is expanded.

Description

The present invention relates to a monolithic three-dimensional structure in “expanded metal”, applicable in particular as the reinforcement of a building construction panel, this structure having on its surface members which are parallel to each other and at the heart of inclined legs connecting these members.

Such structures are known from English Patent No. 114059 and US Patent 3111 204.

In the English patent Benham n ° 114059, a first structure illustrated by FIGS. 5 and 6 is taken from a flat sheet cut out but not deployed which has longitudinal cutting lines parallel to each other, these cutting lines being discontinuous by the fact that they are, on the one hand, interrupted at a breakpoint and ,, on the other hand, deflected towards the neighboring cutting line by a. cutting bias. The implementation of these means allows to obtain on the flat sheet of the longitudinal members between which are arranged aligned legs, which are connected to said members by connecting rods.

During deployment, it is a question of immobilizing an extreme member and pulling step by step on the neighboring members always in the same direction. As a result, the legs tilt in a plane substantially perpendicular to the underside defined by certain members by spreading the upper face defined by the other members, which gives volume in thickness to the structure thus obtained.

This structure, according to Figures 5 and 6, has drawbacks such that it cannot be used economically.

• elle se déploie en parallélogramme et conduit à des pertes de métal importantes,
• elle ne peut pas être découpée en continu avec des. couteaux circulaires, du fait que les biais de découpe sont parallèles entre eux, ce qui conduirait à une déformation des disques de découpe et à une déviation des lignes découpées,
• elle ne peut pas être déployée en continu de façon économique du fait que l'installation présenterait une trop grande longueur et qu'il est impossible d'imaginer comment les membrures pourraient être maintenues alors qu'elles devraient défiler à des vitesses différentielles,
• son déploiement en largeur n'est pas prévu et il semble difficile à réaliser du fait que les biais de découpe ne recouvrent pas suffisamment les points d'arrêt dans les noeuds pour permettre le vrillage desdits nœuds lors du déploiement en largeur.

The main disadvantages are:

• it deploys in a parallelogram and leads to significant metal losses,
• it cannot be cut continuously with. circular knives, owing to the fact that the cutting biases are parallel to each other, which would lead to a deformation of the cutting discs and to a deviation of the cut lines,
• it cannot be deployed economically continuously because the installation would be too long and it is impossible to imagine how the members could be maintained when they should be traveling at differential speeds,
• its deployment in width is not envisaged and it seems difficult to carry out because the cutting biases do not sufficiently cover the stopping points in the nodes to allow the twisting of said nodes during the deployment in width.

• . de résister parfaitement à l'écrasement, les jambages étant croisés,
• de permettre le passage transversal d'éléments longi-lignes, étant donné que les noeuds sont alignés transversalement.

However, the first structure has the advantage:

• . to resist crushing perfectly, the legs being crossed,
• to allow the transverse passage of long line elements, since the nodes are aligned transversely.

In this English patent, a second structure illustrated by FIGS. 1 to 3 shows a three-layer deployment defined by the members of the upper face, the members of the lower face and the members of an intermediate layer, members which are connected by inclined legs as in the first structure.

Consequently, this second structure has the same advantages and the same disadvantages as the first.

In US patent 3111204, a first structure illustrated by Figures 1 to 3 comprises members which are connected by legs whose cutting lines are mutually parallel. When the sheet is deployed, the legs are thwarted in that they are inclined sometimes in one direction, sometimes in the other.

This structure therefore has the advantage of being resistant to crushing and of allowing the insertion of transverse elements between the legs when the latter are aligned.

• le déploiement de la structure s'effectue en parallélogramme et conduit par conséquent à une perte de métal par supression des pointes,
• ce déploiement s'accompagne aussi d'une perte de largeur de la structure déployée par rapport à la feuille plane,
• le découpage en continu avec des couteaux rotatifs est impossible parce que les découpes inclinées sont toutes parallèles entre elles. Il est également impossible parce que ces lignes de découpe sont inclinées sur toute leur étendue et, étant trop longues, occupent un développé circulaire trop grand et incompatible avec le roulement des deux couteaux, l'un sur l'autre pendant la coupe,
• en supposant que ce découpage soit réalisé par d'autres moyens, le déploiement continu pose des problèmes techniques et économiques pratiquement insurmontables dans le cadre de la compétitivité.

However, it has the following drawbacks:

• the structure is deployed in a parallelogram and consequently leads to a loss of metal by removing the tips,
• this deployment is also accompanied by a loss of width of the deployed structure relative to the flat sheet,
• continuous cutting with rotary knives is impossible because the inclined cuts are all parallel to each other. It is also impossible because these cutting lines are inclined over their entire extent and, being too long, occupy a too large circular development and incompatible with the rolling of the two knives, one on the other during cutting,
• assuming that this division is made by other means, continuous deployment poses almost insurmountable technical and economic problems in the context of competitiveness.

In this US patent, a second structure illustrated in FIG. 8 comprises members which are connected by inclined legs. The cutting lines of some legs are parallel to each other and the same is true of those of other legs. However, the cutting lines of the first legs extend symmetrically from that of the second legs with respect to the axis of the members.

To deploy the structure, it suffices to immobilize the lower members and to move all the upper members longitudinally by the same distance with respect to said lower members.

Consequently, the deployed structure practically retains the rectangular configuration of the cut sheet before deployment. But all the legs are tilted in the same direction.

Under these conditions, this second structure has the major drawback of not resisting crushing.

• de ne pas pouvoir être découpée en continu avec des couteaux circulaires, bien que les lignes de découpe soient symétriques. La raison de cette impossibilité est que les lignes de découpe sont inclinées sur toute leur étendue et, étant trop longues, occupent un développé circulaire trop grand et incompatible avec le roulement des deux couteaux l'un sur l'autre pendant la coupe,
• de se déployer en perdant de la largeur, le poids au mètre carré de la structure déployée étant alors supérieur au poids de la feuille dont cette structure est issue.

It also has the other aforementioned drawbacks, namely:

• not being able to be cut continuously with circular knives, although the cutting lines are symmetrical. The reason for this impossibility is that the cutting lines are inclined over their entire extent and, being too long, occupy a too large circular developed and incompatible with the rolling of the two knives on each other during cutting,
• to deploy while losing width, the weight per square meter of the deployed structure then being greater than the weight of the sheet from which this structure is derived.

By cons, this second structure has the advantage of deploying in a rectangle and not, therefore, lead to the loss of metal at the ends. It also has the advantage of allowing the introduction of transverse elements.

The object of the present invention is to remedy the drawbacks of these known structures by combining their advantages.

In other words, the structure of the invention must have significant resistance, in particular to any crushing which tends to bring the planes of its members closer. Its manufacture must also be achievable in series at a competitive cost price. More specifically, its cutting must be continuously executable by means of circular knives and its deployment must be achievable automatically, preferably continuously. Of course, metal losses must be excluded. In addition, it must be possible to insert longitudinal elements between the members and transversely between the legs of the service elements such as electric cables, piping, ducts, tie rods, etc.

To achieve this object and in accordance with the invention, each node of each member of even rank defining a first face of the structure is shaped in a triangle and couples the neighboring ends of two legs extending respectively on the two sides of the member considered and in the same direction, the directions reversing for the legs of the two consecutive members of even rank, while each node of each member of odd rank defining the second face of the structure is shaped in parallelogram and couples the neighboring ends of two legs extending respectively on the two sides of the member considered and in opposite directions, the directions being reversed for the counterparts of two consecutive members of odd rank.

More particularly, the connecting nodes are arranged, on the unexpanded metal, along lines perpendicular to the members; during deployment, if the nodes in parallelogram of the members of odd rank are immobilized longitudinally, on the other hand the nodes in triangles of each member of even rank are moved longitudinally, sometimes in one direction, for a member of even rank considered, and sometimes in the opposite direction, for the two members of even row consecutive to this one, so that the legs tilt, opposing for two consecutive members of even row while the first face defined by them departs from the second face defined by the members of odd rank.

Preferably, during the deployment of the metal sheet previously cut, the members are spaced transversely from each other.

More precisely, each parallelogram coupling node of a member of odd rank is formed by the part of the latter on which the two legs of opposite directions which are coupled to it end, as well as by the ends of these legs which are separated. of those of the legs extending in extension by two cutting biases, which are parallel to each other and to the line connecting two points of this part diagonally opposite, the cutting biases of a member of odd row being inclined symmetrically with respect to to those of the two consecutive members of odd rank.

Each triangle coupling node of a member of even rank is formed by the part of the latter on which the two legs of the same direction which are coupled to it end, as well as by the ends of these legs which are separated from those of the legs extending in extension by two cutting biases, which are respectively parallel to the two lines which connect diagonally the four points of this part, the cutting biases of a member of even rank converging opposite those of the two consecutive members of even rank.

The present invention also extends to a building construction panel comprising several structures of the aforementioned type, coated with a flowable, sprayable, foamable material, etc. When laying the structures in extension of each other and in contact by their extreme edges defined by the even end members of the first face and odd of the second face, the members of each structure cooperate with regularly spaced transverse bars of which the ends are fixed, in particular by force hooking, on the members of two adjoining structures.

Various other characteristics and advantages of the invention will also emerge from the detailed description which follows.

An embodiment of the object of the invention is shown, by way of nonlimiting example, in the accompanying drawing.

• la figure 1 est une vue en plan partielle montrant le métal prédécoupé et non déployé selon l'invention.
• la figure 2 est une vue en plan analogue à la figure 1 faisant ressortir le début du déploiement et permettant de distinguer les divers composants de l'ossature ou armature des panneaux de l'invention,
• la figure 3 est une perspective partielle illustrant cette ossature ou armature déployée à partir du métal prédécoupé selon les figures 1 et 2,
• la figure 4 est une vue en plan élémentaire partielle analogue à la figure 1, mais représentant à plus grande échelle cinq noeuds successifs du métal avant déploiement,
• la figure 5 est une coupe transversale partielle montrant l'assemblage de plusieurs panneaux entre eux pour constituer un mur,
• la figure 6 est une élévation prise suivant la flèche F de la figure 5.

On this drawing :

• Figure 1 is a partial plan view showing the precut metal and not deployed according to the invention.
• Figure 2 is a plan view similar to Figure 1 showing the start of deployment and to distinguish the various components the frame or frame of the panels of the invention,
• FIG. 3 is a partial perspective illustrating this framework or reinforcement deployed from the precut metal according to FIGS. 1 and 2,
• FIG. 4 is a partial elementary plan view similar to FIG. 1, but showing on a larger scale five successive nodes of the metal before deployment,
• FIG. 5 is a partial cross-section showing the assembly of several panels together to constitute a wall,
• FIG. 6 is an elevation taken along the arrow F in FIG. 5.

As is clear from the example in FIG. 5, a panel of the invention comprises a frame 1 of expanded metal, a layer 2 of filling material and surface coatings 3, 4 in mortar, plaster or the like. Layer 2 is trapped at the heart of the frame 1 and coats the components thereof, thus participating in the rigidity and overall resistance of the panel. At least some of these components protrude from the layer 2 and therefore allow, when the panels are assembled together in the manner described in the following with reference to FIGS. 5 and 6, the attachment by projection of the coatings.

The metal sheet 5 (FIG. 1) intended for the manufacture of the reinforcement 1 is preferably made of steel and it is precut to generate, during its deployment, the three-dimensional monolithic structure of reinforcement 1 shown in FIG. 3.

This structure can be used in the context of this particular application or alone or in other applications such as those mentioned in the foregoing.

As can be seen from FIGS. 1 to 4, this monolithic and three-dimensional structure 1 has members that are parallel to one another and spaced apart from one another; these members are designated by the general reference 6 and are distinguished by an index defining their rank; it is important to note right now that the odd rank members 6.1, 6.3, 6.5, 6.7, 6.9 ..., 6.2n + 1 are intended to delimit one of the faces of the structure, while the members of even rank 6.2, 6.4, 6.6, 6.8 .... 6.2n are intended to delimit the opposite face of said structure.

• ..., 6.4n + 3 ; 6.4, 6.8 ..., 6.4n ; 6.2, 6.6 ..., 6.4n + 2, respectivement.

The members 6 are separated from each other by solid parts of the sheet 5, intended to constitute legs 57, 58, 67 and 68 leading to connecting nodes 59, 69, 79 and 89 of members 6.1, 6.5. ., 6.4n + 1; 6.3, 6.7

• ..., 6.4n + 3; 6.4, 6.8 ..., 6.4n; 6.2, 6.6 ..., 6.4n + 2, respectively.

Considering the frames of odd rank 6.2n + 1 in FIG. 2, the legs 57 extend above and to the right, while the legs 58 extend below and to the left, a leg 57 being conjugated to a leg 58 to end on a node in the shape of a parallelogram 59 of a member of odd rank 6.4n + 1, such as member 6.5, the legs 67 extend above and to the left, while the legs 68 extend below and to the right, a leg 67 being combined with a leg 68 to end on a knot in the form of a parallelogram 69 of a member of odd rank 6.4n + 3, such as member 6.3, the frames of odd rank 6.2n + 1 being alternately provided with knots 59 with legs 57, 58 and knots 69 with legs 67, 68.

• de noeuds triangulaires 79 (membrures 6.4n, telles que la membrure 6.4) sur lesquels convergent de la gauche des jambages supérieurs 68 et inférieurs 67,
• de noeuds triangulaires 89 (membrures 6.4n + 2, telles que le membrure 6.2) sur lesquels convergent de la droite des jambages supérieurs 58 et inférieurs 67.

Now considering the members of _' even rank 6.2n in Figure 2, they are alternately provided:

• triangular knots 79 (members 6.4n, such as member 6.4) on which converge from the left upper legs 68 and lower legs 67,
• triangular knots 89 (members 6.4n + 2, such as member 6.2) on which converge from the right the upper legs 58 and lower legs 67.

To obtain this particular arrangement of the frames 6, the legs 57, 58, 67, 68 and the nodes 59, 69, 79 and 89, each frame 6 is delimited by two interrupted cutting lines 50, 51 whose interruptions make it possible to allow the subsistence solid parts which precisely constitute the aforementioned connecting nodes. These lines 50, 51 separate the members of the legs and are extended by cutting biases 52 to 55 which detach each leg from the one with which it is aligned before deployment and, at the same time, which delimit the parts of the nodes projecting laterally from the frames.

• chaque noeud en forme de parallélogramme 69.4n + 3 est délimité par les biais de découpe 54 et 55,
• chaque noeud triangulaire 79.4n est délimité par les biais de découpe 52 et 55 communs aux noeuds voisins 59 et 69,
• chaque noeud triangulaire 89.4n + 2 est délimité par les biais de découpe 53 et 54 communs aux noeuds voisins 59 et 69.

Thus, each node in the shape of a parallelogram 59.4n + 1 is delimited by cutting biases 52 and 53,

• each knot in the form of a parallelogram 69.4n + 3 is delimited by cut-outs 54 and 55,
• each triangular node 79.4n is delimited by cutting biases 52 and 55 common to the neighboring nodes 59 and 69,
• each triangular node 89.4n + 2 is delimited by cutting biases 53 and 54 common to the neighboring nodes 59 and 69.

These cutting biases are oriented and distributed in a very particular way analyzed in the following with reference to FIG. 4. The metal sheet 5 is divided into narrow bands by the cutting lines 50 and 51 which are interrupted in points 50a, 50b and respectively 51a, 51b aligned on imaginary lines 61a, 61b, these being perpendicular to the cutting lines 50, 51 and separated in correspondence with the chosen size of the nodes (left half of FIG. 4). Four neighboring points 50a, 50b, 51a and 51b b could be connected by fictitious diagonals 62 and 63.

As shown in the right half of FIG. 4, the aforementioned bands successively constitute the frame 6.1, the legs 58, the frame 6.2, the legs 67, the frame 6.3, the legs 68, the frame 6.4, the legs 57, the frame 6.5, legs 58, frame 6.6 and so on. In addition, the cutting bias 52 and 53 are parallel to the diagonal 69. while the cutting bias 54 and 55 are parallel to the conjugate diagonal 63; these biases are distributed so as to be successively parallel to each other by two and diverging from one another by two.

• le noeud triangulaire 89 est défini par deux biais 53 et 54 convergeant vers la gauche sur la membrure 6.2 et divergeant vers la droite sur deux jambages 58 et 67 encadrant cette membrure qui en est séparée par les lignes de découpe 50 et 51 jusqu'aux points 50b et 51 b,
• le noeud en forme de parallélogramme 69 est défini par deux biais parallèles 54 et 55 s'inclinant de la gauche en haut vers la droite en bas pour relier des jambages 67 et 68 à la membrure 6.3 au-delà des points d'interruption 50a et 51 b des lignes de découpe 50 et 51 qui séparent cette membrure 6.3 desdits jambages 67 et 68 s'étendant de part et d'autre en prolongement,
• le noeud triangulaire 79 est défini par deux biais 55 et 52 convergeant vers la droite sur la membrure 6.4 et divergeant vers la gauche sur deux jambages 68 et 57 encadrant cette membrure qui en est séparée par les lignes 50 et 51 jusqu'aux points 50a et 51a,
• le noeud en forme de parallélogramme 59 est défini par deux biais parallèles 52 et 53 s'inclinant de la gauche en bas vers la droite en haut pour relier des jambages 58 et 57 à la membrure 6.5 au-delà des points d'interruption 51 a et 50b des lignes de découpe 51 et 50 qui séparent cette membrure 6.5 desdits jambages 58 et 57 s'étendant de part et d'autre en prolongement.

Thus, always referring to the right half of Figure 4:

• the triangular node 89 is defined by two biases 53 and 54 converging to the left on the frame 6.2 and diverging to the right on two legs 58 and 67 framing this frame which is separated therefrom by the cutting lines 50 and 51 up to the points 50b and 51b,
• the parallelogram-shaped node 69 is defined by two parallel biases 54 and 55 inclining from the left upwards to the right downwards to connect the legs 67 and 68 to the frame 6.3 beyond the breakpoints 50a and 51 b, cutting lines 50 and 51 which separate this frame 6.3 from said legs 67 and 68 extending on either side in extension,
• the triangular knot 79 is defined by two biases 55 and 52 converging to the right on the frame 6.4 and diverging to the left on two legs 68 and 57 framing this frame which is separated by the lines 50 and 51 up to points 50a and 51a,
• the parallelogram-shaped node 59 is defined by two parallel biases 52 and 53 tilting from left to bottom to the right at the top to connect the legs 58 and 57 to the frame 6.5 beyond the break points 51 a and 50b of the cutting lines 51 and 50 which separate this frame 6.5 from said legs 58 and 57 extending on either side in extension.

• immobiliser longitudinalement dans un plan de base les membrures de rang impair 6.1, 6.3, 6.5, 6.7, 6.9 ..., 6.2n + 1,
• et tirer longitudinalement sur les membrures de rang pair 6.2n, en les écartant à la fois transversalement des précédentes et perpendiculairement de leur plan de base, cette traction étant alternée vers la droite pour les membrures 6.4, 6.8 ..., 6.4n et vers la gauche pour les membrures 6.2, 6.6 ..., 6.4n + 2.

To deploy the sheet 5 thus precut, it is necessary, as is clear from FIG. 3:

• immobilize the members of an odd row 6.1, 6.3, 6.5, 6.7, 6.9 ..., 6.2n + 1 longitudinally in a base plane,
• and pull longitudinally on the members of even rank 6.2n, by moving them both transversely from the previous ones and perpendicularly from their base plane, this traction being alternated to the right for members 6.4, 6.8 ..., 6.4n and towards the left for members 6.2, 6.6 ..., 6.4n + 2.

• pour les jambages 57 le long de la ligne de pliage 57a du noeud de rang pair 79.4n et le long de la ligne de pliage 57b du noeud de rang impair 59.4n + 1 (figures 3 et 4),
• pour les jambages 58 le long de la ligne de pliage 58a du noeud de rang impair 59.4n + 1 et le long de la ligne de pliage 58b du noeud de rang pair 89.4n + 2 (figures 3 et 4),
• pour les jambages 67 le long de la ligne de pliage 67a du noeud de rang impair 69.4n + 3 et le long de la ligne de pliage 67b du noeud de rang pair 89.4n + 2,
• pour les jambages 68 le long de la ligne de pliage 68a du noeud de rang pair 79.4n et le long de la ligne de pliage 68b du noeud de rang impair 69.4n + 3, toutes ces lignes de pliage reliant un point d'interruption 50a ou 51a, 50b ou 51b des lignes de découpe 50, 51 d'une membrure, au point d'interruption homologue situé en regard 51 a ou 50a, 51 b ou 50b des lignes de découpe de la membrure voisine.

Of course, during this displacement, the legs tilt in a symmetrical manner, the legs 58 and 67 of the knots 89 of even rank 4n + 2 down to the right (FIG. 3) and the legs 68 and 57 of the knots 79 of even rank 4n down to the left (Figure 3). This inclination is accompanied by a folding of the legs at the location of the connecting nodes:

• for the jambs 57 along the fold line 57a of the even row knot 79.4n and along the fold line 57b of the odd row knot 59.4n + 1 (Figures 3 and 4),
• for the jambs 58 along the fold line 58a of the odd row knot 59.4n + 1 and along the fold line 58b of the even row knot 89.4n + 2 (Figures 3 and 4),
• for the legs 67 along the fold line 67a of the knot of odd rank 69.4n + 3 and along the fold line 67b of the knot of even rank 89.4n + 2,
• for the jambs 68 along the fold line 68a of the even row knot 79.4n and along the fold line 68b of the odd row knot 69.4n + 3, all these fold lines connecting an interruption point 50a or 51a, 50b or 51b of the cutting lines 50, 51 of a member, at the homologous interruption point situated opposite 51a or 50a, 51b or 50b of the cutting lines of the neighboring member.

With a monolithic and three-dimensional structure 1 made of expanded metal, as indicated in the foregoing with reference to FIGS. 1 to 4, it is very easy to manufacture a panel having sufficient strength and rigidity for building construction; Figure 5 shows three panels 41.1 to 41.3 which, during assembly, are aligned one after the other. Of course, the coatings 3 and 4 are not projected and the strength of the frames 1 is ensured only by their own rigidity.

To ensure the connection of these panels together and to prevent cracks from appearing thereafter, transverse bars 42 are placed at different regularly spaced levels. These bars are nothing special except that hooks 43 and 44 are formed by the ends of each. The forming of the hooks is carried out by force and is intended to join the extreme member of a panel with the extreme member adjacent to the adjoining panel; thus, true cross-linking of all of the panels is obtained and at the same time ensures the intense connection of the extreme members which are close to the edges in contact with said panels.

Claims (6)

1. Monolithic tridimensional structure in « expanded metal,- particularly usable as reinforcement for building construction panels, said structure being provided on the surface with ribs parallel one to the other and inside with inclined stiles joining up the said ribs, said structure being characterized :

in that knot (79, 89) of every rib of an even row (6.4n) which defines a first face of the structure is triangle-shaped and joins the adjacent ends of two stiles (57 and 68, 67 and 58) which extend respectively on both sides of the considered rib and in the same direction, the directions being reversed for the stiles of two consecutive ribs of an even row (6.4 and 6.4n + 2), and in that each knot (59, 69) of each rib of an odd row (6.4n + 1) defining the second face of the structure is parallelogram-shaped and joins the adjacent ends of two stiles (57 and 58, 67 and 68) which extend respectively on both sides of the considered rib and in opposite directions, the directions being reversed for the homologous stiles of two consecutive ribs of an odd row (6.4n + 1 and 6.4n + 3).

2. Structure according to claim 1, characterized in that the joining knots (59, 69, 79, 89) are arranged, on the non-expanded flat metal, in lines perpendicular to the ribs ; and in that, during expanding of the metal, if the parallelogram-forming knots (59, 69) of the ribs of an odd row (6.4n + 1) are fixed in position longitudinally, the triangle-forming knots of each rib of an even row, on the contrary, are moved longitudinally, in one direction (79) for a given rib of an even row (6.4n), and in the opposite direction (89) for the two ribs of even row ((6.4n + 2) consecutive thereto, so that the stiles are inclined in opposite ways for two consecutive ribs of even row, while the first face define by said ribs goes away from the second face defined by the ribs of odd row.

3. Structure according to claim 2, characterized in that, during expanding of the previously cut metal sheet, the ribs are spaced transversely one from the other.

4. Structure according to claim 2, characterized in that each parallelogram-shaped joining knot (59, 69) of a rib of odd row (6.4n + 1) is constituted by the part thereof onto which reach the two stiles (57 and 58, 67 and 68) of opposite directions which are joined thereto, as well as by the ends of said stiles which are separated from the ends of the stiles extending therefrom by two slanted parts (52 and 53, 54 and 55), which are parallel one to the other and to the line joining two diagonally opposite points of said part, the slanted parts of one rib of odd row being symmetrically inclined with respect to those of two consecutive ribs of odd row.

5. Structure according to claim 2, characterized in that each triangle-forming joining knot (79, 89) of a rib of even row (6.4n) is constituted by the part thereof onto which reach the two stiles (57 and 68, 67 and 58) of same direction which are joined thereto, as well as by the ends of said stiles which are separated from the ends of the stiles extending therefrom by two slanted parts (52 and 55, 53 and 54), said slanted parts being parallel respectively to the two lines joining diagonally the four points of said part, the slanted parts of one rib of even row converging in the opposite way to the slanted parts of two consecutive ribs of even row.

6. Building construction panel comprising a plurality of structures according to claim 1 coated with a castable, sprayable, foamable, etc. material, characterized in that, when the structures are laid one in extension of the other and contacting by the ends defined by the even end ribs (6.2n) of the first face and by the odd end ribs (6.2n + 1) of the second face, the ribs of each structure cooperate with regularly spaced transverse bars (40) of which the ends (41, 42) are secured, particularly by force-locking means, to the ribs of two contiguous structures.

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