Prefabricated self-supporting plate made of polystyrene and...

E - Fixed Constructions – 04 – B

Patent

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E04B 5/04 (2006.01) E04B 5/02 (2006.01) E04B 5/26 (2006.01) E04B 5/38 (2006.01) E04B 7/22 (2006.01)

Patent

CA 2341534

Prefabricated self-supporting plate comprised, throughout its length, of two double T-shaped concrete ribs and three polystyrene arches of the same edge as the ribs and which, by application inside of a compression layer, form a reinforced concrete. By giving a double T shape to the ribs and by concreting said ribs against the arches, the assembly is embedded and it is possible to step on the arches in the work side with total security. As an alternative, extensions with inferior recess can be arranged at the extremeties of the ribs in order to absorb the thickness of the wing of the semi-prefabricated beams of the type "iron cage with concrete sole" on which they will bear. Thereby, a planor prefabricated structure is obtained onto which the plaster can be applied directly without having to install false ceilings.

L'invention concerne une plaque préfabriquée autoporteuse de polystyrène sur toute sa longueur constituée de deux nervures de béton en forme de double T et trois voûtes de polystyrène de même chant que les nervures qui, par l'apport sur place d'une couche de compression, forment une chape de béton armé. La forme en double T des nervures et le bétonnage de celles-ci contre les voûtes fait que l'ensemble est encastré et que l'on peut marcher sur les voûtes en toute sécurité. Selon une autre variante, on peut disposer à l'extrémité des nervures des prolongements présentant un évidement inférieur permettant de recevoir l'épaisseur de l'aile des poutres semi-préfabriquées du type cage de ferraille à semelle en béton sur lesquelles ils reposeront. On obtient ainsi une structure préfabriquée plate qui trouve une application directe dans l'enduit de plâtre sans avoir recours à de faux plafonds.

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