軸圧縮を受ける箱形断面短柱の局部座屈領域に関する実験的研究

概要

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This paper describes an investigation of local buckling behavior and the local buckling zone of box-section stub-columns subjected to axial compression. In the stub-columns tests, the longitudinal strain of the column is concentrated in the local buckling zone and the strain is not widely distributed along the member axis. In this paper, a series of stub-columns tests is performed to clarify the local buckling behavior of the local buckling zone. The local buckling mode and the length of local buckling zone of the stub-column is measured in detail. Added to this, the theoretical stress-strain curves of stub-columns are derived by plastic hinge analysis. From the experimental and analytical investigation, the length of the local buckling zone of box-section stub-columns is twice as long as the half wave length of the local buckling mode. The deformation capacity of steel member must be estimated considering the local buckling zone.
社団法人日本建築学会の論文
1997-03-30