【摘要】 以新安江两等跨箱形混凝土拱桥为工程背景 ,采用大型有限元分析软件ANSYS建立三维有限元模型并对其进行动力特性分析 ,并用实桥脉动测试结果进行校核 ;在此基础上运用反应谱法和时程分析法相结合 ,计算分析该桥的纵向、横向和竖向地震响应。分析结果对于改进该类拱桥的结构布局和构造设计 ,评价桥梁的动力特性和抗震性能 ,具有重要意义更多还原

【Abstract】 ANSYS was used to establish a finite element model of the box-shaped concrete arch bridge with two equal spans, and an analysis of dynamic property was preformed, and measured impulse data was used to verify the analysis result. Response spectrum method and time-history method was used for analysis of longitudinal, transversal, and vertical earthquake response.更多还原