Beam structure and method for producing such structures

Details Beam structure and method for producing such structures Beam structure and method for producing such structures

E - Fixed Constructions

04

C

E04C 3/06 (2006.01) E04C 3/29 (2006.01) E04C 3/04 (2006.01)

Patent

CA 2378637

The invention concerns a beam structure comprising at least a wing (1, 1') made of at least a first metal and at least a core (2, 2') made of at least a second metal, said core being assembled substantially perpendicular to said wing and said core being a sheet material or sheet metal. The invention is characterised in that the first metal has a high or very high yield strength, and associated with a yield strength/tensile strength ratio close to 1, the second metal has a yield strength substantially lower than that of the first metal; the second metal has a yield strength/tensile strength ratio substantially less than 0.9 and less than the value of said ratio exhibited by the first metal.

Structure de poutre comprenant au moins une semelle (1, 1') réalisée en au moins un premier métal et au moins une âme (2, 2') réalisée en au moins un second métal, ladite âme étant assemblée de manière essentiellement perpendiculaire à ladite semelle, ladite semelle et ladite âme étant en feuille ou en tôle, caractérisée en ce que: le premier métal présente une limite d'élasticité élevée ou très élevée, et associé à un rapport limite l'élasticité/charge de rupture proche de 1; le second métal présente une limite d'élasticité sensiblement inférieure à celle du premier métal; le second métal présente un rapport limite d'élasticité/charge de rupture sensiblement inférieur à 0.9 et inférieur à la valeur dudit rapport présenté par le premier métal.

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