Flat steel concrete anchor for precast concrete pieces

E - Fixed Constructions – 04 – B

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E04B 1/14 (2006.01) E04G 21/14 (2006.01)

Patent

CA 2010108

A flat steel concrete anchor for precast concrete parts is provided. The anchor has a connecting area for a hoist device that is disposed close to the surface of the precast concrete part. An anchoring area is located deeper in the precast concrete part which has at the end of the flat steel part a hook-shaped bent section by which support surfaces for the concrete are formed, directed essentially transversely to the direction of stress and disposed on both sides of the mid-height axis. A curvature formed by the hook-shaped bent section serves to receive a reinforcement rod. The flat steel part in the anchoring area has at least two flat steel sections which are formed in opposite directions into bent sections and, viewed in the longitudinal direction of the reinforcement rod to be inserted, make up an essentially closed form.

La présente invention a pour objet une plaque en acier destinée à l'ancrage dans le béton préfabriqué. La plaque d'ancrage comporte une partie destinée à l'accrochage d'un appareil de levage, laquelle est disposée près de la surface de la pièce de béton préfabriqué. La plaque en question comporte une extrémité destinée à être ancrée profondément à l'intérieur de la pièce de béton préfabriqué et qui est recourbée en forme de crochet définissant des surfaces de support dans le béton, lesquelles sont orientées de manière essentiellement transversale à la direction de la tension exercée, et distribuées de part et d'autre à mi-hauteur de l'axe. La configuration donnée au crochet permet le passage d'une barre d'armature. L'extrémité de la plaque en acier qui est noyée dans le béton comporte deux sections qui sont recourbées dans des directions opposées de manière à former un passage qui, observé dans l'axe d'insertion longitudinale d'une barre d'armature, présente une forme essentiellement fermée.

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