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本文通过二阶弹塑性稳定分析的结果,对钢框架结构的“PΔ”效应进行了分析研究.指出了我国现行设计方法中存在的问题,并提出了以二阶分析为依据的设计方法.
In this paper, through the results of the second-order elasto-plastic stability analysis, the “PΔ” effect of the steel frame structure is analyzed. The problems existing in the current design methods in China are pointed out, and a design method based on second-order analysis is proposed. .