| 摘要 |
PURPOSE:To eliminate partial extension and break of a steel wire and to facilitate removal of the steel wire, by a mthod wherein load resistant plates, where an unbound PC steel wire can hook, are located in parallel to each other at an anchor body, and a steel wire hook packing is attached to a load resistant plate at a steel wire tension jack side. CONSTITUTION:Unbound PC steel wires 3, 3' hook load resistant plates 2, 2', respectively, positioned in parallel to each other at an end and a center of an anchor body 1, and said steel wires 3' hooks a load resistant plate 2', centrally positioned, through the medium of a packing 4. The anchor body 1 is formed such that the intermediate part between the load resistant plates 2 and 2' is formed in a hollow, and a plurality of reinforcing plates 5 and a number of projections 6 serving as a resistance during the presence in a ground of the device are provided between the two plates. Curved concave recesses 7, which the steel wires 3, 3' can hook, are formed in the load resistant plates 2, 2', and a hook part 8, which can mate the concave recess 7, is formed on the packing 4. This absorbs a stress, applied to the steel wire when a like stress is applied to the two steel wires 3, 3' by a jack, by bending of the packing 4, which results in bringing the two steel wires into an approximately constant extension. |
