摘要
为了研究粘滞阻尼器对独塔斜拉桥的减震效果,基于酉水三桥采用MIDAS/CIVIL进行数值模拟分析。在漂浮体系的独塔斜拉桥的主梁和主塔之间进行纵向对称布置粘滞阻尼器,并对阻尼器进行不同参数的设置,对比发现阻尼参数对其抗震性能影响非常大,合理选择相应的参数,可以同时减小结构的位移和内力,纵向设置粘滞阻尼器改变了桥面惯性力的传播路径,可以起到明显有效的减震效果。
In order to study the damping effect of viscous dampers on the single-tower cable-stayed bridge,MIDAS/CIVIL was used to carry out numerical simulation analysis based on Youshui Third Bridge.In the floating system of single tower cable-stayed bridge between the girder and the main tower,and the viscous dampers for longitudinal symmetrical arrangement and different parameters of damper settings,compared with damping parameters on its seismic performance influence is very big,choose the corresponding parameters,can reduce the displacement and internal force of structure at the same time,the longitudinal setting viscous dampers changed the bridge deck propagation path of inertia force,can have obvious shock absorption effect.
作者
方晔飞
晏竣
贺峰
Fang Yefei;Yan Jun;He Feng(School of Civil Engineering,Changsha University of Science&Technology Changsha 410114,China;NO.2 Engineering Co.,Ltd.of China Railway NO.5 Engineering Group Hengyang 421002,China)
出处
《广东土木与建筑》
2020年第12期18-20,共3页
Guangdong Architecture Civil Engineering
关键词
独塔斜拉桥
粘滞阻尼器
数值模拟
阻尼参数
减震
single-tower cable-stayed bridge
viscous damper
numerical simulation
damping parameter
shock absorption
