径厚比の小さい高強度円形鋼管の短柱圧縮挙動

概要

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To obtain some fundamental informations about elastic-plastic behaviour of CHS steel columns with small diameter-to-thickness ratio, stub columns of high strength CHS steel columns with parameters of diameter to thickness ratio and yield ratio of material were tested and analyzed numerically. Evaluations of the tests and the FEM analyses showed as follows: (1) members of D/t < 20 have some excellent characteristics compared with others (D/t 20). It is due to the larger actual stress than the nominal tensile one at the maximum strength and the increase in the cross sectional area after the yield strength, (2) the compressive strength of high strength materials can be estimated considering the parameters of the diameter to thickness ratio and the yield ratio of the CHS columns.
社団法人日本建築学会の論文
1998-05-30