| 摘要 |
PROBLEM TO BE SOLVED: To perform lifting work and installation work for a PC floor slab efficiently. SOLUTION: A tip part of a locking device 3 protrudes in both end parts of the PC floor slab to be lifted. A plurality of PC floor slabs are arranged in parallel in the direction of width, the hanging tools 13 are locked in the locking devices of each PC floor slab, respectively, and the PC floor slabs are lifted together while they are arranged in parallel and are arranged at installation positions as they are. A group of PC floor slabs are piled up at many steps, all of them are lifted together, and the PC floor slab on a lower step side is arranged at the installation position and then is slung again over each group of PC floor slabs on an upper step side to move them horizontally. A simple hanging tool 11 provided with a plurality of hanging tools 13 in a steel hanging frame 12 is used. A steel plate having an inverted pot belly-shaped fitting hole which is fittable to the head of the locking device 3 is used as a hook member 19 in the hanging tool. COPYRIGHT: (C)2007,JPO&INPIT
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