Structure for embedding embedded-type light

E - Fixed Constructions – 01 – F

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Details

E01F 9/06 (2006.01) B64F 1/20 (2006.01) B64F 1/36 (2006.01) E01F 11/00 (2006.01) F21S 2/00 (2006.01)

Patent

CA 2321059

Through holes (3a) are made in the side wall of a base (3) of an embedded-type light (1). Ends (6a, 7a) of reinforcing steel bars (6, 7) of an RC pavement (2) laid around an embedded portion of the light are inserted into the through holes (3a), and the rims of the through holes (3a) are firmly secured to the ends (6a, 7a) of the reinforcing steel bars (6, 7) by welding. Therefore, the load exerted from above on the light (1) is distributed not only to the portion of the RC pavement (2) in contact with the lower surface of the base (3) but also to the reinforcing steel bars (6, 7), so that the punching shear resistance of the RC pavement (2) is significantly improved. Thus, an embedded-type light which does not cause a dent in an RC pavement under the base of the light even if a heavy load such as an airplane is exerted is realized.

Des orifices traversants (3a) sont pratiqués dans la paroi latérale d'un socle (3) de feu du type encastrable (1). Les extrémités (6a, 7a) de barres d'armature en acier (6, 7) d'un revêtement en béton armé (2) posé autour d'une partie encastrée du feu, sont insérées dans lesdits orifices traversants (3a), les bords de ces derniers étant (3a) étant fixés solidement par soudage aux extrémités (6a, 7a) des barres d'armature en acier (6, 7). Ainsi, la charge exercée depuis le dessus du feu (1) est répartie non seulement sur la partie du revêtement (2) en contact avec la surface inférieure du socle (3) mais également sur les barres d'armature (6, 7), de manière que la résistance au cisaillement par poinçonnement du revêtement RC (2) soit sensiblement accrue. Un feu on produit un feu du type encastrable n'induisant pas de dépression dans le revêtement sous le socle du feu, même s'il une charge lourde est exercée par exemple par un avion.

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