【摘要】 异形柱框架结构在我国得到了较普遍的工程应用。文章提出了 Z形柱的非线性分析方法 ,考虑了混凝土本构关系的下降段和箍筋的影响 ,用数值分析的方法编制了异形柱全过程分析程序 ,并对 Z形柱的三种截面形式进行了计算 ,考虑了荷载角、轴压比、配箍率等的变化 ,分析了 M-Φ曲线 ,M-N曲线 ,得出 Z形柱曲率延性比和承载力的一些变化规律。更多还原

【Abstract】 In this paper, a method of nonlinear analysis of Z-shaped R.C. columns is put forward while the full path of stress-strain relation of concrete and the role of hooped reinforcement are all considered. A computer program for a full range of analysis of special-shaped columns is compiled. Based on the analytical results of three cross-sections of Z-shaped R.C. columns, some general principles of ductility and bearing capacity of Z-shaped R.C. columns are given while the ‘M-Φ’ and ‘M-N’ curves are analyzed under the change of angle of load, the limit value of axial compression ratio and ratio of hooped reinforcement,etc.更多还原