SQUARE AND RECTANGULAR HOLLOW SECTIONS SUBJECT TO COMBINED ACTIONS
SQUARE AND RECTANGULAR HOLLOW SECTIONS SUBJECT TO COMBINED ACTIONS
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DOI：
10.1061/(asce)0733-9445(1992)118:3(648
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发表时间：
1992-03
期刊：
影响因子：
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通讯作者：
X. Zhao;G. Hancock
中科院分区：
文献类型：
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作者：
X. Zhao;G. Hancock
本文描述了一系列冷成形方形和矩形空心截面在纯弯曲、纯集中力和组合弯曲以及集中力作用下的大量试验。集中的力是通过承载板施加的，承载板作用于截面的整个法兰宽度。轴承长度与所使用的轴承板宽度的比值（γ）从0.5到1.0不等，以显示轴承长度对失效载荷的影响。目前的试验与之前在悉尼大学进行的类似截面上的T形接头试验进行了比较，以证明使用支承板的试验显著减少了破坏载荷，并且弯矩和集中力之间的相互作用更严重。试验结果与澳大利亚、欧洲和美国现有的设计程序进行了比较。并提出了改进的设计程序。
A large number of tests on a range of cold‐formed square and rectangular hollow sections subjected to pure bending, pure concentrated force and combined bending, and concentrated force are described. The concentrated force is applied by means of a bearing plate that acts across the full flange width of the section. The ratio (γ) of the bearing length to the width of the bearing plate used varies from 0.5 to 1.0 in order to show the effects of the bearing length on the failure loads. The current tests are compared with previous T‐joint tests performed at the University of Sydney on similar sections to demonstrate the significant reductions in failure loads and the more severe interaction between bending moment and concentrated force for the tests using bearing plates. The test results are compared with the existing Australian, European, and American design procedures. Improved design procedures are also proposed.