| 摘要 |
PROBLEM TO BE SOLVED: To provide a steel concrete composite floor slab reduced in weight while ensuring minimum floor slab thickness and reducible also in factory manufacturing costs and site costs. SOLUTION: The steel concrete composite floor slab is formed as a hollow composite floor slab by arranging steel pipes on a bottom steel plate through ribs at suitable spaces in a right-angled direction to a bridge axis, and placing concrete thereon. Round steel pipes or rectangular steel pipes are used as the steel pipes and arranged in the almost center height position of the thickness of the floor slab. COPYRIGHT: (C)2004,JPO&NCIPI
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