Floor and ceiling structures

Details Floor and ceiling structures Floor and ceiling structures

E - Fixed Constructions

04

B

E04B 5/40 (2006.01) E04B 5/29 (2006.01) E04B 5/48 (2006.01) E04C 5/03 (2006.01)

Patent

CA 2242588

A composite floor or ceiling structure which comprises a profiled steel deck supported by a plurality of I-section steel beams each having an upstanding web bordered by upper and lower flange plates and covered in situ with concrete. The deck comprises a plurality of side-by-side elongate profiled deck members each including an upper generally horizontal surface bordered by downwardly ant outwardly inclined side surfaces. The upper flange plate of each beam has formed in its upper surface a plurality of grooves in a pattern to increase bonding between the beam and its covering of concrete. Preferably, each supporting beam is rolled as a single piece with the width of its lower flange plate greater than that of its upper flange plate to define a supporting platform for the steel deck.

L'invention concerne une structure composite de plancher ou de plafond comprenant un assemblage horizontal de profilés en acier supportés par des poutres en acier ayant une section en forme de I, avec une âme verticale délimitée par une bride supérieure et une bride inférieure, le tout étant recouvert de béton in situ. L'assemblage est constitué par des profilés allongés, placés côte à côte, et ayant chacun une surface supérieure sensiblement horizontale bordée par des surfaces latérales inclinées vers l'extérieur. La bride supérieure de chaque poutre a, sur sa surface supérieure, des rainures formant un motif susceptible d'améliorer la cohésion entre la poutre et son revêtement de ciment. De préférence, chaque poutre de support est produite d'une seule pièce par laminage, et la largeur de la bride inférieure est plus grande que celle de la bride supérieure, pour constituer une plate-forme de support pour les profilés en acier.

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