Grooved stiffened profile

F - Mech Eng,Light,Heat,Weapons – 16 – S

Patent

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Details

F16S 3/08 (2006.01) E04C 3/00 (2006.01)

Patent

CA 2564519

The invention relates to a novel stiffened channel having improved mechanical characteristics in relation to hitherto-known structural sections. The inventive channel can be used for the construction of large architectural vaults or roof trusses, providing efficient dead load support. The constituent parts of the channel comprise: a core, upper and lower runners or sides, and finials which are positioned at the ends of the part. According to the invention, the runners comprise a flat surface which is divided into three parts or sections. One end of the first of the aforementioned sections, which has a flat surface, is connected to the core by means of a bend, such that the section is maintained at ninety degrees in relation to the core, while the other end thereof is connected to an intermediate section, also by means of bend. The intermediate section, which has a flat surface, is shifted in relation to the central axis of the runners and forms the trussed section. A second bend is provided in the intermediate section in order to connect same to a third section which also has a flat surface and which is disposed in the same plane as the aforementioned first section. Finally, another bend is provided between the third section and one of the finials such that the finials are maintained at ninety degrees in relation to the runners. In addition, the core, which has a flat surface, is also divided into three sections. The upper end of the first of said sections, which is flat, is connected to the upper runner at ninety degrees by means of a bend. The first section extends into a middle section which is also flat, said two sections being connected by means of a bend. The middle section is shifted in relation to the axis of the core and forms the trussed section. The opposing end of the middle section is connected to a third section which is similar to, and disposed in the same plane as, the first section. Said third section terminates in a second bend which is used to connect same to the lower runner, said runner being disposed at ninety degrees in relation to the core. As a result, the invention applies to structural sections which are used for truss construction.

Un nouveau profil strié rigidifié dont les caractéristiques mécaniques sont supérieures à celles des profils structuraux connus. Ce nouveau profil peut être utilisé tant pour la construction de renforts de toitures ou de voûtes architecturales de grande dimension, supportant efficacement les charges mortes. Ce profil est constitué d'une âme, de côtés se trouvant sur la partie supérieure et inférieure et de terminaisons recourbées formées sur les extrémités de la pièce où les côtés sont constitués d'une surface plane divisée en trois parties ou sections: une première section de surface plane, assemblée sur une extrémité à l'âme au moyen d'un fléchissement formant 90 degrés et, sur l'autre extrémité, présentant un fléchissement sur une section intermédiaire de surface plane, déplacée de l'axe central des côtés et formant la section en retrait. On prévoit un second fléchissement sur la troisième section de surface plane laquelle reste sur le même plan que la première section suivie d'un fléchissement avec un des terminaisons recourbées de manière à ce qu'ils soient à 90 degrés par rapport aux côtés. L'âme, ayant une surface plane, est formée de trois sections: une première section plane, assemblée sur l'extrémité supérieure au fléchissement du côté supérieur, lequel formera un angle de 90 degrés afin de se prolonger en section médiane à surface plane déplacée par rapport à l'axe de l'âme et formant la section en retrait. Cette dernière est assemblée au moyen de fléchissements et est suivie d'une troisième section semblable à la première ayant une surface plane, laquelle se trouve sur le même plan que la première section et se termine avec un second fléchissement sur le côté inférieur qui formera un angle de 90 degrés par rapport à l'âme. Ainsi, l'invention trouve une application dans le monde des profils structuraux utilisés pour la construction de renforts.

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