基于黏滞液体阻尼器的铁路钢桁梁桥减震研究  

Research on seismic response reduction with viscous dampers in the railway steel truss girder bridge

作　　者：张永亮[1] 陈兴冲[1] 吴海燕[1] 

机构地区：[1]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《世界地震工程》2009年第4期97-102,共6页World Earthquake Engineering

基　　金：铁道部科技研究开发计划项目(2006G014)

摘　　要：以某高墩大跨度铁路简支钢桁梁桥为实际工程背景,研究了黏滞液体阻尼器对结构纵向抗震性能的影响。采用非线性时程分析方法,对黏滞液体阻尼器的相关参数及布置位置进行了优化分析。分析结果表明:合理选择黏滞液体阻尼器的布置位置、个数及阻尼参数,高墩大跨铁路简支钢桁梁桥具有明显的减震效果。Research of longitudinal aseismatic performance for a long span railway simply-supported steel truss girder bridge on tall piers with non-linear viscous dampers is presented. Optimum analysis on the position and related parameters of the supplemental non-linear viscous dampers is performed by using non-linear time history response analysis. The results show that if the position, numbers, parameters of viscous dampers are reasonably selected, significant effect of seismic response reduction can be obtained for the long span railway simply-supported steel truss girder bridge on the tall piers.

关 键 词：时程分析 简支钢桁梁桥 黏滞阻尼器 高墩 

分 类 号：U442[建筑科学—桥梁与隧道工程] P351.966[交通运输工程—道路与铁道工程]