捩り外力の H 形鋼隅柱耐力に及ぼす影響 (その 2) : 薄肉開断面材の弾塑性解析 4

概要

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Fourteen tests of H-columns under tri-axial moment and constant axial load were carried out to investigate the general inelastic behavior of corner H-columus. especially to know effects of torsion. and to prove the adequacy of the analysis in the previous report (Part 1). The section of specimens was H-125×125×6.5×9. There were three kinds of the slenderness ratios about the strong axis : 20.40 and 60. and axial load ratio P/Py has three kinds : 0.2, 0.4 and 0.6, The effect of torgue was found to be most pronounced at the slenderness ratio of 40. and considerable decrease in flexural strength was found. Following are the factons that influence the flexural strength of such memders. (1) Magnitude of Shear force due to St. Venauts' torsion. (2) Magnitude of torsional component due to axial force. (3) Magnitude of flexural-torsional component. (4) Magniude of torsional deflection. It was shown dy both the tests and the analysis that the effect of (1) was predominant among all the above factors, and the effect of (4) was small but favorable.
社団法人日本建築学会の論文
1972-05-30