| 摘要 |
PROBLEM TO BE SOLVED: To shorten a construction period by efficiently constructing a building skeleton composed of precast members. SOLUTION: A mast is fixed to the precast member of a constructed story, and a mast is added to extend to a predetermined height. A crane body is lifted up to the predetermined height along the mast to carry out erection around the crane body, and a travel frame is installed at the erected precast members through a travel rail. The mast is released from fixing and pulled up, and the added mast is removed for climbing. While laying the travel rail from the climbing position toward an end part, the travel rail is advanced, or while retreating the laid travel rail from the end part toward the climbing position, the travel rail is removed to carry out erection of a story to be constructed. These processes are repeated to sequentially construct the building skeleton from the lower story to the upper story. COPYRIGHT: (C)2006,JPO&NCIPI
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