在格构式轴心受压构件整体稳定性计算中绕虚轴弯曲屈曲时考虑剪切变形的影响按临界力相等的原则用不考虑剪切变形的欧拉临界公式来表示 将组合截面换算为实腹截面进行计算时所对应的长细比叫换算长细比
equivalent slenderness ratio 换算长细比 equivalent uniformly distributed live load 等效均布活荷载 ..
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In active code for design of steel structures, axially compressed members are calculated not as torsional-flexural buckling but as flexural buckling with equivalent slenderness ratio, residual stress and initial geometry imperfection are also taken into account as flexural buckling.
我国现行钢结构设计规范(GB50017)采用换算长细比的方法将弯扭失稳等效为弯曲失稳，其残余应力和初始几何缺陷均按弯曲失稳考虑。
参考来源 - 热轧单角钢轴心受压构件整体稳定性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
计算方法宜采用换算长细比法。
The approach of equivalent slenderness ratio is recommended for calculation purpose.
给出了应用图表法的换算长细比计算方法。
A calculation method for equivalent slenderness ratio by a graphical method is presented.
阐述单轴对称截面轴心受压构件弯曲屈曲和弯扭屈曲两种失稳形式，以及绕截面对称轴弯扭屈曲换算长细比的计算方法和应用实例。
The flexural buckling and flexural-torsional buckling modes of a monosymmetric section column are presented and the equivalent slenderness ratio for flexural-torsional buckling is derived.
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