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首页> 外文会议>Asia Pacific Symposium on Safety; 20051102-04; Shaoxing(CN) >Local Buckling Behavior of Tapered H-section Members under Non-uniform Pressure
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Local Buckling Behavior of Tapered H-section Members under Non-uniform Pressure

机译：锥形H型截面构件在非均匀压力下的局部屈曲行为

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摘要

Steel portal frames with tapered beams and (or) columns are widely used. The influence of local buckling on the behaviors of tapered H-section members should be investigated in some details, which is one of dominant factors that control the stability and safety design of the members. A geometric and material nonlinear finite element program is used to investigate the locally buckled tapered H-section members under non-uniform pressure, where the effects of local imperfections of web, yielding and large deflections are taken in to account. According to the load-deflections curves of a lot of examples, the effects of average web width to thickness ratio, web tapering ratio, slenderness parameter and web width on local buckling behaviors of tapered H-section members under non-uniform pressure are discussed; Some valuable conclusions are given.
机译：具有锥形梁和（或）圆柱的钢门式框架被广泛使用。应详细研究局部屈曲对锥形H型截面构件性能的影响，这是控制构件稳定性和安全性设计的主要因素之一。使用几何和材料非线性有限元程序研究在非均匀压力下局部弯曲的锥形H型截面构件，其中考虑了腹板局部缺陷，屈服和大挠度的影响。根据许多实例的载荷-挠度曲线，讨论了平均腹板宽度与厚度比，腹板锥度比，细长参数和腹板宽度对非均匀压力下锥形H型截面构件局部屈曲行为的影响。给出了一些有价值的结论。

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