著者

牧野 稔 松井 千秋 三谷 勲

出版者

一般社団法人 日本建築学会

雑誌

日本建築学会論文報告集 (ISSN:03871185)

巻号頁・発行日

vol.281, pp.71-80, 1979

被引用文献数

4 1

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In order to clarify post local buckling behavior and plastic rotation capacity of steel beam-columns, cantilever steel beam-columns of H shape cross section were tested under constant vertical load and alternating horizontal load. The test program was composed of two series; fifty nine specimens of Series I tested at large amplitude of plastic deflection, and thirty three specimens of Series II tested at small plastic amplitude. Main parameters involved in the tests were the width-to-thickness ratios of the flange b/f (2b, f : width and thickness of a flange, respetively), ones of the web D/w (D : depth of a cross section, w : thickness of a web), axial load ratios n (P/P_y, P : a constant vertical load of a specimen, P_y : axial yield load of a specimen), and material pro perties of the steel (mild steel and high strength steel). Values of the parameters b/f, D/w, n are as follows : b/f=6〜16 D/w=17〜65 n=0, 0.3, 0.6 In this paper, the test program and test results are reported. Some observation from the test results are as follows : 1) Not only width-to-thickness ratio of the flange but also one of the web and axial load ratio influence on the post local buckling behavior of the steel beam-columns. 2) Not only with axial load but also without axial load, the members subjected to alternating bending shrink due to unbalance of axial load carrying capacities of the buckled flanges.