| 摘要 |
PROBLEM TO BE SOLVED: To provide a corrugated steel sheet web construction apparatus or the like which suppresses increase in construction cost due to the reinforcement of a corrugated steel sheet web. SOLUTION: The corrugated steel sheet web construction apparatus 100 has main beams 111, 121 with a length equivalent to two continuously connecting length of the corrugated steel sheet web extended forward, rear anchor devices 112, 122 located on an existing bridge body, rear support legs 113, 123, hydraulic jacks 1142, 1242. The corrugated steel sheet web construction apparatus 100 is provided with forward support legs 114, 124 located on the leading end of a forward overhung corrugated steel sheet web which are used as the support legs for extension work load of a new corrugated steel sheet web to the front of the forward overhung corrugated steel sheet web installed on the existing bridge body, concrete load transmission legs for transmitting concrete load to the leading end of the forward overhung corrugated steel sheet web when upper and lower concrete floor slabs of the forward overhung corrugated steel sheet web are constructed, and moveable legs when the main beams 111, 121 are moved, and with portal cranes 119, 129 which move forward and backward on the main beams 111, 121. COPYRIGHT: (C)2009,JPO&INPIT
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