Structural member and a method of manufacturing said member

Details Structural member and a method of manufacturing said member Structural member and a method of manufacturing said member

E - Fixed Constructions

04

C

E04C 3/07 (2006.01) E04C 3/28 (2006.01) E04G 11/50 (2006.01) E04G 17/16 (2006.01) E04C 3/04 (2006.01)

Patent

CA 2431915

The structural member (1) has a generally U-shaped cross-section with a base portion (2) and two leg portions (3) extending at substantially right angles from the base portion. The member comprises at least one thin sheet or foil which is corrugated in a continuous waveform in the longitudinal direction of the member. Each leg portion (3) includes a first section (3a) forming an inner wall of the leg portion and a second section (3b) parallel with the first section and joining the first section along a first joining line (4) and the base portion along a second joining line (5). The structural member is flexible so that it may conform to a surface to which it is to be fastened, but is after fastening to the surface resistant to bending, torsional, tensile and compressive forces and creates a good base for placement of load-carrying composite material, primarily on the base portion. The material of the structural member is thinner than in other elements of comparable rigidity and strength.

Element de construction (1), de section transversale en forme générale de U, comprenant une partie formant une base (2) et deux parties formant les branches (3) s'étendant sensiblement à angle droit à partir de la base. L'élément comprend au moins une feuille mince, ondulée en forme d'ondes continues dans le sens longitudinal de l'élément. Chaque branche (3) comprend une première section (3a) formant une paroi intérieure de la branche, et une seconde section (3b), parallèle à ladite première section, et reliant la première section le long d'une première ligne de jonction (4), et la base le long d'une seconde ligne de jonction (5). L'élément de construction selon l'invention est flexible, de façon qu'il puisse se conformer à la surface sur laquelle il doit être fixé, tout en étant, après fixation sur ladite surface, résistant aux forces de flexion, de torsion, de tension et de compression, et fournit, par ailleurs, une base satisfaisante pour la mise en place d'un matériau composite porteur de charge, principalement sur la partie formant la base. La structure ondulée permet d'utiliser un matériau ayant une épaisseur sensiblement réduite, comparativement à d'autres éléments dotés de propriétés correspondantes eu égard à la rigidité et à la traction. L'élément de construction est utilisé en vue d'être assemblé avec une structure à renforcer, ou pour constituer, par exemple, des systèmes de chauffage ou de ventilation.

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