高強度遠心成形鋼管コンクリート柱の圧縮耐力に関する実験的研究

概要

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A lot of study has been executed on the compressive strength of concrete Filled steel tube(CFT). Especially, confined effect of the in-filled concrete by the steel tube has been investigated enthusiastically, and it has been estimated numerically in case of low strength filled concrete. But in case of the CFT in which high compressive strength concrete such as 1,000 kgf/cm^2 is used, the confined effect has not yet been estimated clearly. In this study, we did the experimental researches to investigate the contribution of the confined effect to compressive strength of CFT which has circular and square hollow section tube and also 1,000kgf/cm^2 compressive strength filled concrete. The CFT is completed by using centrifugal compaction and autoclaved curing. Using the test results, the proposed equation has been derived so that ultimate compressive strength of the CFT can be estimated.
社団法人日本建築学会の論文
1995-03-30