円形鋼管短柱の高温圧縮試験(一般講演)

概要

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Two series of stub column tests were conducted at elevated temperatures for steel tubular members with circular cross-section and compressive stress-strain relationships including large post-local buckling strainings were obtained. One series of specimens are made of conventional structural steel, whereas another fire resisting steel. All obtained stress-strain diagrams were subjected to a comparison with refined finite element analysis solutions which were developed for this special purpose. The following conclusions are drawn through the comparison. 1) The process of failure due to local buckling of the stub columns can be simulated with an adequate accuracy by the finite element analysis. 2) The proposed residual strength prediction Eq.(8) provides approximate overall stress-strain curves of tubular stub columns with various D/t's as well as under various temperatures.
一般社団法人日本建築学会の論文
1994-03-15