| 摘要 |
PROBLEM TO BE SOLVED: To provide timbering for holding a form, easy to construct, efficient in erection and removal of timbering and easily securing a working space. SOLUTION: The timbering 100 for electric protection work is composed of a plurality of shape steel timbering members 110 of U-shape opened upward and having, at the upper ends, suspension parts 111 placed on the upper faces 211 of lower flanges 21 of girders 20, and simplified jacks 120 placed on the respective lower sides of the plurality of shape steel timbering members 110 to support mortar filled forms 40 while fixing the shape steel timbering members 110 to the girders 20. The shape steel timbering member 110 of U-shape is composed of the suspension part 111 placed on the upper face 211 of the lower flange 21 of the girder 20; two shape steel members 112, 113 hanging from the suspension part 111; and a horizontal connecting shape steel member 114 for rigidly connecting the portions near the lower ends of the two shape steel members 112, 113 to each other in a detachable manner. COPYRIGHT: (C)2010,JPO&INPIT
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