【摘要】 结合神水泉大桥的工程设计实例,采用大型有限元分析程序Midas Civil,选取空间梁单元建立动力计算模型,研究了桩土共同作用边界约束条件下的动力特性。采用反应谱法对该桥进行了E1地震作用分析,讨论了在CQC振型组合方法情况下结构地震响应的最大值,同时验算了E1地震作用下相关构件强度。更多还原

【Abstract】 Taking the Shenshuiquan Bridge as an example,using the finite element analysis program Midas Civil,3-D beam element is used in the dynamic FEM model.The dynamic characteristic is discussed under the boundary conditions of the pile-soil interaction.The analysis of earthquake action E1 is carried out through response spectrum method.Finally the earthquake response of the structure maximum is obtained in the case of CQC mode combination,and related member is checked under the earthquake action E1.更多还原