塔梁连接方式对多塔斜拉桥纵向地震反应的影响  

Influence of Tower-girder Connection Method on Longitudinal Seismic Response of Multi-tower Cable-stayed Bridges

作　　者：周珂 金文刚 李建中[1] ZHOU Ke;JIN Wengang;LI Jianzhong(State Key Laboratory for Disaster Reduction of Civil Engineering,Tongji University,Shanghai 200092,China;Shanxi Road and Bridge Construction Group Co.,Ltd.,Taiyuan 030006,China)

机构地区：[1]同济大学土木工程防灾国家重点实验室,上海200092 [2]山西路桥建设集团,太原030006

出　　处：《结构工程师》2018年第A01期31-36,共6页Structural Engineers

基　　金：中国工程院咨询项目

摘　　要：斜拉桥塔梁间的连接方式对其静力和动力响应具有很大的影响。本文以一座多塔斜拉桥为背景,在研究中塔与梁体的连接方式对多塔斜拉桥地震反应影响的基础上,研究了塔梁间采用粘滞阻尼器连接的减震效果,总结了粘滞阻尼器参数对多塔斜拉桥地震反应的影响规律。通过对比不同塔梁连接方式的减震效果,推荐了多塔斜拉桥塔梁间的合理连接方式和粘滞阻尼器设计参数。The connection between the tower and the girder of a cable-stayed bridge has a great influence on its static and dynamic responses.Based on the example of a multi-tower cable-stayed bridge,the influence of the connection between the mid tower and the girder on the seismic response of the bridge is studied,and then the influence of viscous dampers on the seismic response of multi-tower cable-stayed bridge is summarized.By comparing the shock absorbing effect of different tower-beam connections,the reasonable connection method and the design parameters of the viscous damper are proposed.

关 键 词：多塔斜拉桥 阻尼器 减震 

分 类 号：U448.27[建筑科学—桥梁与隧道工程]