EP0280621B1 - Supporting and hanging system for wide span beams - Google Patents

Supporting and hanging system for wide span beams Download PDF

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Publication number
EP0280621B1
EP0280621B1 EP88400397A EP88400397A EP0280621B1 EP 0280621 B1 EP0280621 B1 EP 0280621B1 EP 88400397 A EP88400397 A EP 88400397A EP 88400397 A EP88400397 A EP 88400397A EP 0280621 B1 EP0280621 B1 EP 0280621B1
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EP
European Patent Office
Prior art keywords
post
buttress
leg member
long
beams
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EP88400397A
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German (de)
French (fr)
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EP0280621A1 (en
Inventor
Marc Edouard Irigoyen
Pierre Michel Patrick Bourrier
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Bourrier Pierre M P
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Bourrier Pierre M P
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Priority to AT88400397T priority Critical patent/ATE57553T1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/36—Bearings or like supports allowing movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00—Structural elongated elements designed for load-supporting
    • E04C3/38—Arched girders or portal frames

Definitions

  • the present invention relates, in general, the realization of large spans such as those encountered in what is known as "large areas" and in industrial halls by the combination, on the one hand , preferably glulam beams, or composite materials, and excluding metallic or concrete materials, of long span constituting the parallel sides of the meshes with conventional crosspieces and, on the other hand, of a frame support metal.
  • the present invention relates to the support and attachment system for long-span beams made of glulam or composite materials, on metal support posts, a system arranged so as to allow the vertical reaction to be transferred from the weight of the beam in a pushing effort in the corresponding post and thus create, in the beam, a horizontal force of longitudinal stress which results in increasing the possible span of said beam.
  • each post is provided with at least one bracing leg articulated at its lower end on a hinge pin secured to the corresponding post and the upper end of which is provided with a receiving angle iron on which comes a corner end piece integral with the end of a long-span beam, by means of contact parts with which said end piece is provided, whereby the vertical reaction of the weight of the beam is transferred in a bracing effort in the axis of the corresponding leg, which effort creates a horizontal effort of longitudinal stress in the corresponding long span beam.
  • the invention relates more particularly to the improved support and attachment system for beams 1 A, 1B, 1 C ... on the corresponding posts 2A, 2B, 2C ...
  • each support system has a double support hub, namely: 3A 1 , 3A 2 for the post 2A and the beam 1A; 3Bi, 3B 2 for the column 2B and the beams 1 B and 1 A, 3C 1 , 3C 2 for the column 2C and the beams 1 C and 1 B; and so on until the last edge post (not shown) which is at the other end of the aligned beams.
  • each system is arranged so as to allow the vertical reaction of the weight of the beam to be transferred in a pushing effort on the corresponding post and to create thus, in said beam, a horizontal force of longitudinal stress which results in increasing the maximum possible span of a beam of this type.
  • the system is consisting, symmetrically with respect to the longitudinal axis of symmetry XX of the post, in this case 2B, of two identical arch legs 4 1 , 4 2 articulated at their lower end, on an axis 5 1 , 5 2 pinned on post 2B, without there being any friction or moment, and to which we will return in detail later.
  • These legs are also provided, at their upper end, with support angles 6 1 , 6 2 .
  • end angles 7 1 , 7 2 are fixed for example by gluing, bolting or riveting, on the lower corner of the corresponding beams 1B, 1 A, these angles comprising contact parts 8 1 , 8 2 with the corresponding angles 6 1 , 6 2 .
  • anti-buckling reinforcement plates such as for example the side plates 13A and 13B on the leg proper and the plates 14A and 14B on the wings of the post.
  • Figures 7 and 8 show on a large scale the preferred embodiment of the invention.
  • the end of the beam 1 B is provided with an end piece 7 1 in the form of an angle iron, each of the wings of which is provided with a contact cylinder or half-cylinder 8 1 which comes to bear on the corresponding element. 6 1 of the support angle welded to the upper end of the arch leg 4 1 .
  • the horizontal stress thus created in the beam 1 B makes it possible, as we have seen previously, to increase the maximum possible span of said beam.
  • the automatic catching up of the aging of the material constituting the beam will take place over time, preferably preferably glulam or composite materials such as woven polyester, tubes, fibers, etc. excluding metal and concrete.
  • the end piece 7 1 has only one large-radius contact cylinder resting on the two wings of the angle iron 6 1 of the bracing leg, but, again, this solution would have difficulties in fixing the single cylinder to the end piece and controlling the support distances for both vertical Rv and horizontal forces R H.
  • the post 2B is extended towards the high and is provided at the head (see FIGS. 2 and 3) with two anti-spill beams 15A, 15B which are riveted in their center on the wings of the post 2B with an H section, from which laterally enclose the heads of the beams 1B and 1A placed in the extension of one another.
  • these same beams can be joined by plates such as 16A, 16B and ser support for equipment, such as air conditioning, heating or others.
  • the angle e which the arching leg 4 1 must make with respect to the vertical axis of symmetry XX of the post 2B is determined as a function of the characteristic data of the constituent elements (beams, posts, minimum height under the ceiling, etc. ..) of the long-range construction to be carried out.
  • Mathematical theory would like the center of gravity of the long span beam 1B, the geometric center of the end piece 7 1 with which said beam is provided, as well as the geometric center of the joint 5 1 on the post 2B to be placed on a same arc.
  • the angle 8 should be between 30 ° and 60 ° and preferably, since it is much simpler, from a practical construction point of view, equal to 45 ° .
  • the edge posts such as for example the post 2A of FIGS. 1 and 9 for which the horizontal effect of stress R H which occurs in part 1A and which is transferred into an effect d the Rp buttress on the post 2A is not balanced by the symmetrically reverse action of another beam as is for example the case with the post 2B, must be compensated here by a brace strut 3A 2 which is riveted at its upper end to the wings of the post 2A and is arranged in the extension of the arching leg 3A 1 to come to bear by its lower end on the ground as it appears clearly in FIG. 1. The whole is thus perfectly balanced.
  • the invention proposes an improved system making it possible to ensure the support and the attachment of long-span beams of glulam or composite materials on metal support posts comprising, on each post, at least one leg d buttress arch articulated at its lower end to said post and by which one end of a long-span beam is supported by the post, contact pieces arranged on the beam or at the upper end of the bracing leg , and support elements arranged at the upper end of the bracing leg or on the beam on which the contact parts come to bear, the arrangement of these contact parts and these support elements being such that the weight of the beam produces a longitudinal compressive force along the axis of the leg, which produces a longitudinal compressive force on the beam.

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Description

On rappellera tout d'abord que dans le domaine des travaux publics ou de la construction, la possibilité d'utiliser des poutres de longue portée constitue un avantage essentiel en ce qu'il permet, notamment, de réaliser des planchers à grandes mailles.It will be recalled first of all that in the field of public works or construction, the possibility of using long-span beams constitutes an essential advantage in that it makes it possible, in particular, to produce floors with large meshes.

La présente invention concerne, de façon générale, la réalisation des grandes portées telles que celles que l'on rencontre dans ce qu'il est convenu d'appeler les "grandes surfaces" et dans les halles industrielles par la combinaison, d'une part, de poutres de préférence en lamellé-collé, ou matériaux composites, et à l'exclusion des matériaux métalliques ou en béton, de longue portée constituant les côtés parallèles des mailles avec des traverses classiques et, d'autre part, d'une charpente métallique de support.The present invention relates, in general, the realization of large spans such as those encountered in what is known as "large areas" and in industrial halls by the combination, on the one hand , preferably glulam beams, or composite materials, and excluding metallic or concrete materials, of long span constituting the parallel sides of the meshes with conventional crosspieces and, on the other hand, of a frame support metal.

De façon plus particulière, la présente invention concerne le système d'appui et d'accrochage des poutres de longue portée en lamellé-collé ou matériaux composites, sur des poteaux de support métalliques, système agencé de façon à permettre de transférer la réaction verticale du poids de la poutre en un effort d'arc boutement dans le poteau correspondant et créer ainsi, dans la poutre, un effort horizontal de contrainte longitudinale qui a pour résultat d'augmenter la portée possible de ladite poutre.More particularly, the present invention relates to the support and attachment system for long-span beams made of glulam or composite materials, on metal support posts, a system arranged so as to allow the vertical reaction to be transferred from the weight of the beam in a pushing effort in the corresponding post and thus create, in the beam, a horizontal force of longitudinal stress which results in increasing the possible span of said beam.

Le système perfectionné conforme à l'invention se caractérise en ce que chaque poteau est muni d'au moins une jambe d'arc-boutement articulée à son extrémité inférieure sur un axe d'articulation solidaire du poteau correspondant et dont l'extrémité supérieure est munie d'une cornière de réception sur laquelle vient porter un embout de coin solidaire de l'extrémité d'une poutre de longue portée, par l'intermédiaire de pièces de contact dont est muni ledit embout, grâce à quoi la réaction verticale du poids de la poutre est transférée en un effort d'arc boutement dans l'axe de la jambe correspondante, lequel effort crée un effort horizontal de contrainte longitudinale dans la poutre correspondante de longue portée.The improved system according to the invention is characterized in that each post is provided with at least one bracing leg articulated at its lower end on a hinge pin secured to the corresponding post and the upper end of which is provided with a receiving angle iron on which comes a corner end piece integral with the end of a long-span beam, by means of contact parts with which said end piece is provided, whereby the vertical reaction of the weight of the beam is transferred in a bracing effort in the axis of the corresponding leg, which effort creates a horizontal effort of longitudinal stress in the corresponding long span beam.

Suivant d'autres caractéristiques de l'invention :

  • - chacun des poteaux courants sur la longueur de la construction comporte deux jambes d'arc boutement, disposées et articulées symétriquement par rapport à l'axe longitudinal de symétrie du poteau et destinées à recevoir, chacune, l'embout d'une poutre de longue portée, grâce à quoi les deux efforts d'arc boutement dans les deux jambes s'équilibrent ;
  • - chacun des poteaux de rive ne comporte qu'une seule jambe d'arc boutement destinée à recevoir l'embout de la poutre de longue portée d'extrémité de la construction, la deuxième jambre d'arc boutement étant remplacée par une jambe de force de contreventement équilibrant l'effort d'arc boutement appliqué sur le poteau par la jambe d'arc boutement.
According to other characteristics of the invention:
  • - each of the posts running along the length of the construction comprises two jib legs, arranged and articulated symmetrically with respect to the longitudinal axis of symmetry of the post and intended to each receive the end piece of a long beam reach, whereby the two arching forces in the two legs are balanced;
  • - each of the edge posts has only one bracing arch leg intended to receive the end piece of the long-span beam at the end of the construction, the second bracing arch leg being replaced by a strut bracing balancing the bracing effort applied to the post by the bracing leg.

D'autres caractéristiques, avantages de la présente invention ressortiront de la description qui en est donnée ci-après, en référence aux dessins annexés représentant schématiquement et à titre d'exemple préférentiel, une forme de réalisation possible de ladite invention.Other characteristics, advantages of the present invention will emerge from the description which is given below, with reference to the appended drawings showing schematically and by way of preferred example, a possible embodiment of said invention.

Sur ces dessins :

  • La figure 1 est un schéma permettant d'exposer de façon particulièrement simple le principe de base de l'invention ;
  • La figure 2 est une vue de détail à beaucoup plus grande échelle représentant, en élévation, la partie supérieure d'un poteau courant à deux jambes d'arc boutement recevant les extrémités de deux poutres de longue portée ;
  • La figure 3 est une vue du dessus de l'ensemble précité ;
  • La figure 4 est une vue de détail à plus grande échelle représentant, en élévation, le dispositif d'accrochage et de pivotement de la base d'un des bras d'arc boutement sur un poteau courant tel que celui des figures 2 et 3 ;
  • La figure 5 est une vue de détail du dispositif d'accrochage et de pivotement de la figure 4, représenté en plan avec arrachement partiel et coupe horizontale faite suivant la ligne V-V de ladite figure 4
  • La figure 6 est une coupe transversale du bras d'arc boutement proprement dit, faite suivant la ligne VI-VI de la figure 4;
  • La figure 7 est une vue en élévation de l'extrémité supérieure du bras d'arc boutement des figures 4, 5 et 6, montrant la manière dont elle est aménagée pour recevoir l'extrémité d'une poutre de longue portée ;
  • La figure 8 est une vue du dessus de l'extrémité dudit bras représenté sur la figure 7 ;
  • et la figure 9 est une vue de détail représentant, en élévation, la manière dont sont aménagés chacun des poteaux de rive pour compenser la pression latérale exercée par la poutre de longue portée sur le poteau en question.
In these drawings:
  • Figure 1 is a diagram for explaining in a particularly simple way the basic principle of the invention;
  • Figure 2 is a detail view on a much larger scale showing, in elevation, the upper part of a running post with two jib legs receiving the ends of two long span beams;
  • Figure 3 is a top view of the above assembly;
  • Figure 4 is a detail view on a larger scale showing, in elevation, the hooking and pivoting device of the base of one of the bracing arms on a running post such as that of Figures 2 and 3;
  • Figure 5 is a detail view of the hooking and pivoting device of Figure 4, shown in plan with partial cutaway and horizontal section taken along the line VV of said Figure 4
  • Figure 6 is a cross section of the actual tacking arm, taken along line VI-VI of Figure 4;
  • Figure 7 is an elevational view of the upper end of the bracing arm of Figures 4, 5 and 6, showing how it is arranged to receive the end of a long span beam;
  • Figure 8 is a top view of the end of said arm shown in Figure 7;
  • and FIG. 9 is a detail view showing, in elevation, the manner in which each of the edge posts are arranged to compensate for the lateral pressure exerted by the long-span beam on the post in question.

En se référant tout d'abord au schéma de principe de l'invention de la figure 1, on rappellera que l'invention concerne de façon générale la réalisation de grandes portées par la combinaison :

  • - d'une part, de poutres de longue portée, telles que 1A, 1B, 1 C ... en lamellé-collé ou matériaux composites, et à l'exclusion de matériaux métalliques ou en béton, constituant les côtés parallèles longitudinaux des mailles ;
  • - d'autre part, d'une charpente métallique de support constituée de poteaux tels que 2A, 2B, 2C ... à section en H.
By first referring to the block diagram of the invention of FIG. 1, it will be recalled that the invention generally relates to the production of large spans by the combination:
  • - on the one hand, long-span beams, such as 1A, 1B, 1 C ... in glulam or composite materials, and excluding metallic or concrete materials, constituting the longitudinal parallel sides of the meshes ;
  • - on the other hand, a metal support structure consisting of posts such as 2A, 2B, 2C ... with an H section.

On a vu, par ailleurs que l'invention concerne plus particulièrement le système perfectionné d'appui et d'accrochage des poutres 1 A, 1B, 1 C ... sur les poteaux correspondants 2A, 2B, 2C ....We have also seen that the invention relates more particularly to the improved support and attachment system for beams 1 A, 1B, 1 C ... on the corresponding posts 2A, 2B, 2C ...

Comme on le voit sur la figure 1, chaque système d'appui comporte un double moyeu d'appui, à savoir : 3A1, 3A2 pour le poteau 2A et la poutre 1A; 3Bi, 3B2 pour le poteau 2B et les poutres 1 B et 1 A, 3C1, 3C2 pour le poteau 2C et les poutres 1 C et 1 B ; et ainsi de suite jusqu'au dernier poteau de rive (non représenté) qui se trouve à l'autre extrémité des poutres en alignement.As seen in Figure 1, each support system has a double support hub, namely: 3A 1 , 3A 2 for the post 2A and the beam 1A; 3Bi, 3B 2 for the column 2B and the beams 1 B and 1 A, 3C 1 , 3C 2 for the column 2C and the beams 1 C and 1 B; and so on until the last edge post (not shown) which is at the other end of the aligned beams.

On va maintenant expliciter, en se référant aux figures 2 à 9, comment chaque système est agencé de façon à permettre de transférer la réaction verticale du poids de la poutre en un effort d'arc boutement sur le poteau correspondant et de créer ainsi, dans ladite poutre, un effort horizontal de contrainte longitudinale qui a pour résultat d'augmenter la portée maximum possible d'une poutre de ce type.We will now explain, with reference to FIGS. 2 to 9, how each system is arranged so as to allow the vertical reaction of the weight of the beam to be transferred in a pushing effort on the corresponding post and to create thus, in said beam, a horizontal force of longitudinal stress which results in increasing the maximum possible span of a beam of this type.

En se référant tout d'abord et plus particulièrement au cas du système d'appui double 3Bi, 3B2 pour le poteau 2B et les poutres 1 A et 1 B qui sont représentés sur les figures 2 à 8, on voit que le système est constitué, symétriquement par rapport à l'axe longitudinal de symétrie XX du poteau, en l'occurrence 2B, de deux jambes d'arc boutement identiques 41, 42 articulées à leur extrémité inférieure, sur un axe 51, 52 goupillé sur le poteau 2B, sans qu'il y ait ni frottement, ni moment, et sur lequel on reviendra en détail plus loin. Ces jambes sont par ailleurs munies, à leur extrémité supérieure, de cornières de support 61, 62.Referring first of all and more particularly to the case of the double support system 3Bi, 3B 2 for the post 2B and the beams 1 A and 1 B which are represented in FIGS. 2 to 8, it can be seen that the system is consisting, symmetrically with respect to the longitudinal axis of symmetry XX of the post, in this case 2B, of two identical arch legs 4 1 , 4 2 articulated at their lower end, on an axis 5 1 , 5 2 pinned on post 2B, without there being any friction or moment, and to which we will return in detail later. These legs are also provided, at their upper end, with support angles 6 1 , 6 2 .

D'autre part, des cornières d'embout 71, 72 sont fixées par exemple par collage, boulonnage ou rivetage, sur le coin inférieur des poutres correspondantes 1B, 1 A, ces cornières comportant des pièces de contact 81, 82 avec les cornières correspondantes 61, 62.On the other hand, end angles 7 1 , 7 2 are fixed for example by gluing, bolting or riveting, on the lower corner of the corresponding beams 1B, 1 A, these angles comprising contact parts 8 1 , 8 2 with the corresponding angles 6 1 , 6 2 .

Avant d'aller plus avant dans la description détaillée des jambes d'arc boutement, on voit immédiatement que, pour chacune de ces jambes, la réaction verticale Rv du poids de la poutre 1 B ou 1 A est transférée en un effet d'arc boutement Rp dans la jambe correspondante, ce qui crée, dans la poutre 1B ou 1A, un effort horizontal de contrainte longitudinale RH qui a pour résultat d'augmenter la portée possible de ladite poutre.Before going further in the detailed description of the jib legs, we immediately see that, for each of these legs, the vertical reaction Rv of the weight of the beam 1 B or 1 A is transferred into an arc effect buttoning Rp in the corresponding leg, which creates, in the beam 1B or 1A, a horizontal force of longitudinal stress R H which has the result of increasing the possible range of said beam.

Il est important de noter que, grâce à la conception du système d'appui, les efforts exercés ont des points de passage obligé, à savoir l'axe d'articulation 51, 52 pour la poussée Rp sur la jambe d'appui 41, 42, et les pièces de contact 81 et 82 pour la réaction verticale Rv, pratiquement de 30 T pour des portées de 24 m, et la butée horizontale assurant la contrainte longitudinale M = RH.e dans la poutre, e étant la distance PCT entre le point de passage obligé de la contrainte horizontale RH et la fibre neutre de la poutre 1 B.It is important to note that, thanks to the design of the support system, the forces exerted have compulsory passage points, namely the articulation axis 5 1 , 5 2 for the thrust Rp on the support leg. 4 1 , 4 2 , and the contact parts 8 1 and 8 2 for the vertical reaction Rv, practically 30 T for spans of 24 m, and the horizontal stop ensuring the longitudinal stress M = R H .e in the beam , e being the distance PCT between the obligatory passage point of the horizontal stress R H and the neutral fiber of the beam 1 B.

On va maintenant décrire en détail comment peut être avantageusement aménagée chacune des jambes d'arc boutement 41, 42 de la figure 2, en se référant spécialement aux figures 4 à 8.We will now describe in detail how each of the bracing legs 4 1 , 4 2 of FIG. 2 can be advantageously fitted, with particular reference to FIGS. 4 to 8.

Ces jambes devant impérativement être conçues pour résister au flambage, on réalisera chacune d'elle (voir figure 6) par soudage longitudinal 9 de deux profilés asymétriques à section en U 10A, 10B. Ces profilés comportent à leur extrémité inférieure, taillé en pointe asymétrique (voir figure 4) un orifice 11 A, 11 B permettant le pivotement de l'ensemble de la jambe sur l'axe de support 51, goupillé dans des orifices 12A, 12B pratiqués dans les ailes du poteau 2B à section en H.These legs must imperatively be designed to resist buckling, each of them will be produced (see FIG. 6) by longitudinal welding 9 of two asymmetrical profiles with U section 10A, 10B. These profiles have at their lower end, cut in an asymmetrical point (see FIG. 4) an orifice 11 A, 11 B allowing the whole leg to pivot on the support axis 5 1 , pinned in orifices 12A, 12B made in the wings of the 2B pole with H section.

Afin d'épanouir les contraintes localisées sont fixées, tant sur les faces de la jambe que sur les faces des ailes du poteau concernées, des plaques de renforcement anti-flambage, comme par exemple les plaques latérales 13A et 13B sur la jambe proprement dite et les plaques 14A et 14B sur les ailes du poteau.In order to develop the localized stresses are fixed, both on the faces of the leg and on the faces of the wings of the post concerned, anti-buckling reinforcement plates, such as for example the side plates 13A and 13B on the leg proper and the plates 14A and 14B on the wings of the post.

On a vu précédemment, en décrivant la figure 2, que la poutre 1 B vient porter par son extrémité sur l'extrémité supérieure de la jambe 41 correspondante et que le système d'appui est conçu, conformément à l'invention, de façon que les efforts appliqués Rv, RH et Rp aient des points de passage obligé pour que le calcul et le contrôle des efforts soient aussi faciles et exacts que possible.We have seen previously, in describing Figure 2, that the beam 1 B comes to bear by its end on the upper end of the corresponding leg 4 1 and that the support system is designed, in accordance with the invention, so that the applied forces Rv, R H and Rp have obligatory passage points so that the calculation and the control of the forces are as easy and exact as possible.

Sur les figures 7 et 8, est représentée à grande échelle la forme de réalisation préférentielle de l'invention.Figures 7 and 8 show on a large scale the preferred embodiment of the invention.

Dans ce cas, l'extrémité de la poutre 1 B est munie d'un embout 71 en forme de cornière dont chacune des ailes est munie d'un cylindre ou demi-cylindre 81 de contact qui vient porter sur l'élément correspondant 61 de la cornière de support soudée à l'extrémité supérieure de la jambe d'arc boutement 41. On voit immédiatement que, dans ce cas, les efforts verticaux et horizontaux Rv et RH ainsi que leur point d'application sont parfaitement déterminés et contrôlables, dès que la poutre 1 B est déposée (voir figure 1) sur les jambes d'arc boutement 3B1 et 3C2 des poteaux 2B et 2C.In this case, the end of the beam 1 B is provided with an end piece 7 1 in the form of an angle iron, each of the wings of which is provided with a contact cylinder or half-cylinder 8 1 which comes to bear on the corresponding element. 6 1 of the support angle welded to the upper end of the arch leg 4 1 . We can immediately see that, in this case, the vertical and horizontal forces Rv and R H as well as their point of application are perfectly determined and controllable, as soon as the beam 1 B is placed (see Figure 1) on the arch legs pushing 3B 1 and 3C 2 of posts 2B and 2C.

La contrainte horizontale ainsi créée dans la poutre 1 B permet, comme on l'a vu précédemment d'augmenter la portée maximum possible de ladite poutre.The horizontal stress thus created in the beam 1 B makes it possible, as we have seen previously, to increase the maximum possible span of said beam.

Par ailleurs, on voit que s'opérera dans le temps le rattrapage automatique du vieillissement du matériau constituant la poutre, à savoir de préférence le lamellé-collé ou les matériaux composites tels que polyester tissé, tubes, fibres, etc..., à l'exclusion du métal et du béton.Furthermore, it can be seen that the automatic catching up of the aging of the material constituting the beam will take place over time, preferably preferably glulam or composite materials such as woven polyester, tubes, fibers, etc. excluding metal and concrete.

Il est apparent que serait possible une articulation jambe-embout dans laquelle l'embout sur lequel viendrait se poser la poutre serait articulé sur la jambe d'arc boutement, mais que cette solution présenterait a priori des difficultés de montage et de mise en oeuvre incontestables.It is apparent that a leg-end joint would be possible in which the end piece on which the beam would come to rest would be articulated on the buttressing leg, but that this solution would a priori present incontestable difficulties in mounting and implementation. .

Par ailleurs, on pourrait concevoir que l'embout 71 ne comporte qu'un seul cylindre de contact à grand rayon reposant sur les deux ailes de la cornière 61 de la jambe d'arc boutement, mais, là encore, cette solution présenterait des difficultés de fixation du cylindre unique sur l'embout et de contrôle des distances d'appui des efforts tant verticaux Rv qu'horizontaux RH.Furthermore, it could be conceived that the end piece 7 1 has only one large-radius contact cylinder resting on the two wings of the angle iron 6 1 of the bracing leg, but, again, this solution would have difficulties in fixing the single cylinder to the end piece and controlling the support distances for both vertical Rv and horizontal forces R H.

Il est incontestable que la solution préférentielle décrite précédemment est nettement supérieure en ce que les points de passage obligé desdits efforts sont parfaitement définis par les cylindres de contact 81 de l'embout 71 reposant sur les cornières 61 du bras 41.It is indisputable that the preferred solution described above is clearly superior in that the compulsory passage points of said efforts are perfectly defined by the contact cylinders 8 1 of the end piece 7 1 resting on the angles 6 1 of the arm 4 1 .

Etant donné, comme on vient de le voir, que les poutres 1B et 1 A sont simplement posées par leur embout d'extrémité 71, 72 sur les jambes d'arc boutement 41, 42 le poteau 2B est prolongé vers le haut et est muni en tête (voir figures 2 et 3) de deux poutres anti-déversement 15A, 15B qui sont rivetées en leur centre sur les ailes du poteau 2B à section en H, en viennent enserrer latéralement les têtes des poutres 1B et 1A placées dans le prolongement l'une de l'autre.Given, as we have just seen, that the beams 1B and 1 A are simply placed by their end cap 7 1 , 7 2 on the arch legs 4 1 , 4 2 the post 2B is extended towards the high and is provided at the head (see FIGS. 2 and 3) with two anti-spill beams 15A, 15B which are riveted in their center on the wings of the post 2B with an H section, from which laterally enclose the heads of the beams 1B and 1A placed in the extension of one another.

Par ailleurs, ces mêmes poutres peuvent être réunies par des plaques telles que 16A, 16B et servir de support à des équipements, comme par exemple de climatisation, chauffage ou autres.Furthermore, these same beams can be joined by plates such as 16A, 16B and ser support for equipment, such as air conditioning, heating or others.

L'angle e que doit faire la jambe d'arc boutement 41 par rapport à l'axe de symétrie vertical XX du poteau 2B est déterminé en fonction des données caractéristiques des éléments constitutifs (poutres, poteaux, hauteur minimum sous plafond, etc...) de la construction longue portée à réaliser.The angle e which the arching leg 4 1 must make with respect to the vertical axis of symmetry XX of the post 2B is determined as a function of the characteristic data of the constituent elements (beams, posts, minimum height under the ceiling, etc. ..) of the long-range construction to be carried out.

La théorie mathématique voudrait que le centre de gravité de la poutre longue portée 1B, le centre géométrique de l'embout 71 dont est munie ladite poutre, ainsi que le centre géométrique de l'articulation 51 sur le poteau 2B soient disposés sur un même arc de cercle.Mathematical theory would like the center of gravity of the long span beam 1B, the geometric center of the end piece 7 1 with which said beam is provided, as well as the geometric center of the joint 5 1 on the post 2B to be placed on a same arc.

Dans la pratique, l'angle 8 doit être compris entre 30° et 60° et de préférence, car beaucoup plus simple, d'un point de vue pratique de construction, égal à 45°.In practice, the angle 8 should be between 30 ° and 60 ° and preferably, since it is much simpler, from a practical construction point of view, equal to 45 ° .

Suivant une autre caractéristique de l'invention, les poteaux de rive, comme par exemple le poteau 2A des figures 1 et 9 pour lesquels l'effet horizontal de contrainte RH qui se produit dans la partie 1A et qui est transféré en un effet d'arc boutement Rp sur le poteau 2A n'est pas équilibré par l'action symétriquement inverse d'une autre poutre comme cela est par exemple le cas dans le cas du poteau 2B, doit être impérativement compensé ici par une jambe de force de contreventement 3A2 qui est rivetée à son extrémité supérieure sur les ailes du poteau 2A et est disposée dans le prolongement de la jambe d'arc boutement 3A1 pour venir prendre appui par son extrémité inférieure sur le sol comme cela apparaît distinctement sur la figure 1. L'ensemble se trouve ainsi parfaitement équilibré.According to another characteristic of the invention, the edge posts, such as for example the post 2A of FIGS. 1 and 9 for which the horizontal effect of stress R H which occurs in part 1A and which is transferred into an effect d the Rp buttress on the post 2A is not balanced by the symmetrically reverse action of another beam as is for example the case with the post 2B, must be compensated here by a brace strut 3A 2 which is riveted at its upper end to the wings of the post 2A and is arranged in the extension of the arching leg 3A 1 to come to bear by its lower end on the ground as it appears clearly in FIG. 1. The whole is thus perfectly balanced.

De façon générale l'invention propose un système perfectionné permettant d'assurer l'appui et l'accrochage de poutres de longue portée en lamellé-collé ou matériaux composites sur des poteaux de support métalliques comportant, sur chaque poteau, au moins une jambe d'arc boutement articulée en son extrémité inférieure audit poteau et par laquelle une extrémité d'une poutre de longue portée est soutenue par le poteau, des pièces de contact disposées sur la poutre ou à l'extrémité supérieure de la jambe d'arc-boutement, et des éléments d'appui disposés à l'extrémité supérieure de la jambe d'arc-boutement ou sur la poutre sur lesquels viennent porter les pièces de contact, la disposition de ces pièces de contact et de ces éléments d'appui étant telle que le poids de la poutre produit une force longitudinale de compression selon l'axe de la jambe, laquelle produit une force longitudinale de compression sur la poutre.In general, the invention proposes an improved system making it possible to ensure the support and the attachment of long-span beams of glulam or composite materials on metal support posts comprising, on each post, at least one leg d buttress arch articulated at its lower end to said post and by which one end of a long-span beam is supported by the post, contact pieces arranged on the beam or at the upper end of the bracing leg , and support elements arranged at the upper end of the bracing leg or on the beam on which the contact parts come to bear, the arrangement of these contact parts and these support elements being such that the weight of the beam produces a longitudinal compressive force along the axis of the leg, which produces a longitudinal compressive force on the beam.

Bien entendu, la présente invention ne se limite nullement au mode de réalisation décrit et représenté, mais englobe bien au contraire toutes variantes à la portée de l'homme de l'art, prévues par les revendications.Of course, the present invention is in no way limited to the embodiment described and shown, but on the contrary quite encompasses all variants within the reach of ordinary skill in the art, provided for by the claims.

Claims (8)

1. A system for supporting and attaching long-span laminate or composite material beams (1 A, 1 B, 1 C, etc) on and to metal supporting posts (2A, 2B, 2C, etc), characterised in that each post is provided with at least one buttress leg member (3A1, 3Bi, 3C1, etc) articulated at its lower end to an articulation shaft (51, 52, etc) attached to the corresponding post and the upper end of which is provided with a two-wing channel (61, 62, etc) on which bears a corner strengthening member (71, 72) attached to the end of a long-span beam (1A, 1B, etc) through the intermediary of contact members (81, 82, etc) with which said corner strengthening member is provided, whereby the vertical reaction force Rv to the weight of the beam is transferred into a buttress force Rp on the axis of the corresponding leg member (3Bi, 3B2) which produces a horizontal longitudinal stress force RH in the corresponding long-span beam.
2. A system according to claim 1, characterised in that each intermediate post on the length of the structure (2B, 2C, etc) comprises two buttress leg members (41, 42) symmetrically disposed and pivoted relative to the longitudinal axis of symmetry (X-X) of the post and each adapted to receive the end of a long-span beam (1 A-1 B, 18-1C, etc), whereby the two buttress forces (Rp-Rp) in the two leg members (41, 42) balance each other.
3. A system according to claim 1, characterised in that each of the end posts (2A) comprises a single buttress leg member (3A1) adapted to receive the end of the long-span beam (1A) of the structure, the second buttress leg member being replaced by a bracing leg member (3A2) balancing the buttress force Rp applied to the post by the buttress leg member (3A1).
4. A system according to any one of claims 1 to 3, characterised in that the contact members (81, 82, etc) with which the corner strengthening member (71, 72) of the long-span beam (1 A, 1B, etc) is provided comprise two small-diameter cylindrical members (81-81, 82-82) orthogonal to the beam and adapted to bear on respective wings of the two-wing channel (61, 62) attached to the upper end of the buttress leg member (41, 42, etc), these contacts constituting points through which the forces are obliged to pass.
5. A system according to claim 4, characterised in that, in one embodiment, the corner strengthening member (71, 72) of the beam (1 A, 1 B) is provided with a single larger diameter contact cylinder (81 or 82) orthogonal to the beam which bears on both wings of the two-wing channel (61, 62) attached to the upper end of the buttress leg member (41, 42, etc) along two separate generatrices of said cylinder, these contacts constituting points through which the forces are obliged to pass.
6. A system according to any one of claims 1 to 5, characterised in that each buttress leg member (41, 42, etc) is. made by welding longitudinally (9) two asymmetrical U-shaped-cross-section members (10A, 10B) and in that, facing the articulations (51, 52) between leg member and post, anti-buckling reinforcing plates are fixed to the lateral surfaces of the leg member (13A, 13B) and io the lateral surfaces of the flanges of the post (14A, 14B).
7. A system according to anyone of claims 1 to 6, characterised in that transverse anti-toppling beams (15A, 15B) are attached to the top of each support post (2A, 2B, etc) and embrace laterally the ends of two aligned beams (1 A, 1 B) on the same post (2B), these transverse beams being adapted to support technical equipment such as air conditioning, heating or other equipment.
8. A system according to any one of claims 1 to 7, characterised in that the longitudinal axis of each buttress leg member (41, 42, etc) is at an angle e to the longitudinal axis of symmetry (X-X) of the corresponding post (2A, 2B, 2C, etc) between 30° and 60° and preferably approximately 45°.
EP88400397A 1987-02-23 1988-02-22 Supporting and hanging system for wide span beams Expired - Lifetime EP0280621B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400397T ATE57553T1 (en) 1987-02-23 1988-02-22 BEARING AND SUSPENSION SYSTEM FOR LONG SPAN BEAM.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8702306A FR2611781B1 (en) 1987-02-23 1987-02-23 LONG-RANGE BEAM SUPPORT AND LOCKING SYSTEM
FR8702306 1987-02-23

Publications (2)

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EP0280621A1 EP0280621A1 (en) 1988-08-31
EP0280621B1 true EP0280621B1 (en) 1990-10-17

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EP88400397A Expired - Lifetime EP0280621B1 (en) 1987-02-23 1988-02-22 Supporting and hanging system for wide span beams

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US (1) US4876836A (en)
EP (1) EP0280621B1 (en)
CN (1) CN1011806B (en)
AR (1) AR243627A1 (en)
AT (1) ATE57553T1 (en)
AU (1) AU604104B2 (en)
BR (1) BR8805635A (en)
CA (1) CA1282572C (en)
DE (1) DE3860800D1 (en)
ES (1) ES2018616B3 (en)
FR (1) FR2611781B1 (en)
GR (1) GR3001337T3 (en)
IN (1) IN170363B (en)
MA (1) MA21191A1 (en)
UA (1) UA42667C2 (en)
WO (1) WO1988006214A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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FR2857038B1 (en) * 2003-07-03 2007-03-30 Marc Edouard Irigoyen BEAM ATTACHMENT SYSTEM
US20050005561A1 (en) * 2003-07-11 2005-01-13 Nucon Steel Corporation Lateral and uplift resistance apparatus and methods for use in structural framing
CN1298945C (en) * 2004-02-13 2007-02-07 哈尔滨工业大学 Unshored self supporting cast-in-situ concrete structure
US20050284081A1 (en) * 2004-06-25 2005-12-29 Porter William H Building structure with purlin to beam connection
US20070234666A1 (en) * 2006-03-24 2007-10-11 Porter William H Integral connectors in tubular beams for building structures
CN102213636B (en) * 2011-05-17 2012-12-26 清华大学 Horizontal power test device
KR101300519B1 (en) 2013-01-22 2013-09-02 김동우 Grade adjustable bridge
FR3135473B1 (en) 2022-05-12 2024-04-26 Sermeca Stephanoise Corner connection device for industrial buildings with movable perimeter cladding equipped with beams equipped with a runway
FR3135472B1 (en) 2022-05-12 2024-04-19 Sermeca Stephanoise Device for increasing the spans of beams for industrial buildings with mobile perimeter cladding

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516495A (en) *
DE64238C (en) * H. HEILAND in Charlottenburg Adjustable trestle
US816158A (en) * 1905-05-06 1906-03-27 Charles Erickson Folding stool.
US967471A (en) * 1910-02-26 1910-08-16 Leedy Mfg Company Collapsible xylophone-stand.
US4260293A (en) * 1980-04-15 1981-04-07 Peterson John A Floating dock structure and method for fabricating the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104314316A (en) * 2014-11-20 2015-01-28 中建六局土木工程有限公司 Irregular-shaped leg column support installation and construction method

Also Published As

Publication number Publication date
EP0280621A1 (en) 1988-08-31
FR2611781A1 (en) 1988-09-09
AU604104B2 (en) 1990-12-06
BR8805635A (en) 1989-08-15
DE3860800D1 (en) 1990-11-22
CN88101698A (en) 1988-09-07
IN170363B (en) 1992-03-21
WO1988006214A1 (en) 1988-08-25
AR243627A1 (en) 1993-08-31
UA42667C2 (en) 2001-11-15
US4876836A (en) 1989-10-31
ES2018616B3 (en) 1991-04-16
CN1011806B (en) 1991-02-27
FR2611781B1 (en) 1989-06-30
GR3001337T3 (en) 1992-08-31
CA1282572C (en) 1991-04-09
ATE57553T1 (en) 1990-11-15
MA21191A1 (en) 1988-10-01
AU1362588A (en) 1988-09-14

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