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我国《钢结构设计规范》中对含有薄柔截面的构件的稳定承载力如何确定缺少必要的规定.为了解决这个问题,从经典的理论研究入手,综述了国内外其他规范对此类构件的设计规定.重点分析了有效宽度法、直接强度法和有效截面法的计算原理,并比较了各自的优缺点.对钢构件薄柔截面板件局部屈曲和整体屈曲的相关性、冷弯薄壁型钢的畸变屈曲、地震下钢构件局部屈曲和塑性铰合理控制、钢结构设计规范修订等问题提出了深入研究的建议.
China’s “Code for Design of Steel Structures” lacks the necessary regulations on how to determine the stable bearing capacity of members with thin and soft cross-sections.In order to solve this problem, this paper reviews the design of such components from the perspective of classical theoretical research , The calculation principle of effective width method, direct strength method and effective section method are mainly analyzed, and their respective advantages and disadvantages are compared.For the correlation between local buckling and global buckling of thin flexible continuous-steel plate members, , The local buckling of the steel members under earthquake, the rational control of the plastic hinges, the revision of the steel structure design code, and so on.