| 摘要 |
PROBLEM TO BE SOLVED: To provide a structure of a steel pipe filled with concrete, which has high strength and excellent ductility and enhances stress transfer capacity, by building the steel pipe or section steel into the steel pipe and providing a bearing rib for forming a compressed strut in the steel pipe or the section steel. SOLUTION: The steel pipes are built into this structure of the steel pipe filled with the concrete; the external steel pipe and the internal steel pipe are concentrically arranged; the bearing ribs are provided in regions appropriate for the formation of the compressed strut of the infilled concrete in an inside surface of the external steel pipe and an outside surface of the internal steel pipe, respectively; the bearing rib for increasing adhesive stress of the infilled concrete is provided in the inside surface of the internal steel pipe; the concrete is infilled into the internal steel pipe and a gap between the external and internal steel pipes; and the external steel pipe is integrated with the internal steel pipe. COPYRIGHT: (C)2004,JPO
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