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对不同边界条件的均匀受压和受弯矩形板进行了考虑几何和材料非线性、残余应力、初始几何缺陷的非线性分析,得到压力-压缩曲线和弯矩-曲率曲线,确定不同通用宽厚比下板件的延性系数,提出各类板件的延性系数计算公式。根据计算地震力的结构影响系数的大小,提出了面向抗震设计的钢构件截面分类的方法,利用结构延性与截面延性系数的关系和该文得到的截面延性系数的计算公式,以及结构影响系数中是否包含超强系数,分别给出了各类截面板件的宽厚比分界。
Comparing the geometrical and material nonlinearity, residual stress and initial geometrical imperfection nonlinear analysis, the pressure-compression curve and bending moment-curvature curve are obtained for the uniformly pressed and bent rectangular plates with different boundary conditions. Compared with the ductility coefficient of the lower panel, the formulas for calculating the ductility coefficient of all kinds of panels are proposed. According to the calculation of the influence coefficient of structural force, the method of section classification of steel members facing seismic design is proposed. Based on the relationship between structural ductility and cross-section ductility coefficient and the calculation formula of cross-section ductility coefficient obtained in this paper, Whether super-strength coefficients are included or not, respectively, the width-to-thickness ratio boundaries of all kinds of cross-section plates are given.