【摘要】 对钢筋混凝土结构在低周反复荷载下的受力全过程进行了模拟分析,得出荷载—位移滞回曲线和结构骨架曲线。拟静力分析程序设计基于弯矩—转角(M—θ)的单分量杆模型,其刚度采用退化三线型恢复力模型。在此基础上用Matlab语言编制了一榀框架结构的分析程序,计算值与试验结果吻合较好。程序的计算方法简便可靠,可以用来分析结构的弹塑性性能。更多还原

【Abstract】 The load-displacement hysteretic curve and skeleton curve were acquired by full-range analysis of reinforced concrete structures under low reversed cyclic loading.In pseudo-static analysis program,the tri-linear restoring force model with consideration of rigidity degradation was adopted based on the moment-rotation relation.Calculations are in good agreement with experimental results by frame structure analysis program established with the Matlab language.The calculation method of the program is convenient and reliable,and can be applied to analyze the elastic-plastic performance of different structures.更多还原