FIELD: construction.
SUBSTANCE: proposal is related to construction and repair of artificial structures, mostly bridges, namely to devices and accessories for production of works related to concreting of construction structures and facilities. Anchor device includes support-anchor plate that contains casing arranged with conical channel and protrusion with support surface rigidly fixed to the casing, collet element installed in conical bore of support-anchor plate and reinforcement spiral that interacts with support surface of support-anchor plate. Support surface of protrusion is installed in the plane that is located perpendicularly to longitudinal axis of casing conical channel at the distance H equal to 0.6-0.7 of conical channel length from the plane of its largest diameter, at that between casing and support surface of protrusion there is radial surface arranged with radius R equal to 0.2 - 0.35 of conical channel length.
EFFECT: reduction of structure material intensity and labour intensity of its manufacture with simultaneous reduction of stress concentration in concrete.
5 dwg, 2 tbl
