In order to explore the influence of the stiffness of prefabricated tie beams on the seismic performance of double-column pier,a substructure model of the prefabricated tie beams of a bridge belt was established by using ABAQUS software,and nine finite element models were established by changing the material of the tie beams and the internal dimension of the section of the tie beams.The pseudo-static analysis was carried out by means of displacement loading,and it was found that the stiffness changes had little influence on the seismic performance of the structure.When the size change reaches 203%,the seismic performance of the structure is still not significant,indicating that the structure is not sensitive to the stiffness change of prefabricated tie beams.The results show that there is a wide feasible range in the design of the material and size of the prefabricated tie beam,and the cost,construction requirements and construction methods should be considered in the comprehensive selection.
关键词
预制系梁/双柱式桥墩/抗震性能/有限元分析
Key words
prefabricated tie beam/double-column pier/anti-seismic property/finite element analysis
维普
万方数据