| 摘要 |
PROBLEM TO BE SOLVED: To safely and rapidly carry out the drawing work of a PC steel member by forming a through hole through which a PC steel member can pass and holes to which tractive wire can be fitted in the removal jig, and attaching a member for fixing a wedge to the upper face of the removal jig body. SOLUTION: A through hole 11 through which a PC steel member can pass is formed at the central part of a removal jig body 1 and hooking holes 12, 12 are formed at symmetrical positions around the through hole 11. A member 3 for fixing a wedge is attached to the upper face of the removal jig body 1. In the drawing work, at first, a PC steel member is inserted in the through hole 11 and a wedge is inserted in a gap between the PC steel member and the through hole 11. Then, the member 3 for fixing the wedge is moved to hold the PC member and the upper face of the wedge is held lest that the wedge comes off the through hole 11. Then, A wire is inserted in a shackle and the schackle is fitted to the removal jig body 1 through a fixing member or the wire is directly inserted in the hooking hole 12 and the wire is finally pulled by a drawing device to draw the PC steel member out. In this way, the drawing-out work can be safely and rapidly carried out.
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