预制拼装桥墩基于性能的抗震设计方法研究  

Study on Performance-based Seismic Design Method for Prefabricated Bridge Columns

作　　者：吴正华 刘正权 王宏亮 WU Zhenghua;LIU Zhengquan;WANG Hongliang(Jiangsu Ruiwo Construction Group Co.LTD.,Yangzhou 225699,China)

机构地区：[1]江苏瑞沃建设集团有限公司,江苏扬州225699

出　　处：《洛阳理工学院学报（自然科学版）》2023年第1期45-50,共6页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

摘　　要：为研究预制拼装桥墩的抗震设计方法,总结了墩顶位移的计算方法;基于等效线性化方法,将加速度反应谱转化为弹性位移反应谱,修正等效粘滞阻尼系数,给出基于性能的抗震设计流程,并通过实例进行验算。采用基于性能的抗震设计方法可以有效计算出预制拼装桥墩的设计最大承载力以及极限承载力,计算效率快,精度高。In order to study the seismic design method of prefabricated columns,the calculation method of column top displacement is summarized.Based on the equivalent linearization method,the acceleration response spectrum is transformed into the elastic displacement response spectrum,the equivalent viscous damping coefficient is modified,and the performance-based seismic design process is given,which is verified by an example.The results show that the performance-based seismic design method can effectively calculate the design maximum bearing capacity and ultimate bearing capacity of prefabricated columns,with fast calculation efficiency and high accuracy.

关 键 词：预制拼装桥墩 抗震设计方法 基于性能 设计承载力 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]