【摘要】 枣庄体育场屋盖是由索桁架和刚性压环组成的自平衡体系,其刚度由索系的预应力提供,整个过程需要采用非线性算法,采用有限元软件ABAQUS对体育场进行了反应谱及大震时程分析,并编制子程序,对该混合结构进行大震下性能分析,通过损伤因子确定了大震下结构抗震性能。更多还原

【Abstract】 The roof of Zaozhuang Stadium is a self-balance structure composed by cable-trusses and compressing ring,and their stiffness depends on cables’ prestress,and nonlinear method was used. The finite element software ABAQUS was adopt to analysis response spectrum and seismic time-history of the stadium. Besides,some subroutines were programmed in order to do the composite structure performance analysis under rare earthquake. The seismic performance of the structures under rare earthquake can be determined through the damage factor.更多还原