中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2007, Vol. 26 ›› Issue (3): 5-9.

• • 上一篇    下一篇

大跨度拱桥减震分析

张鑫1,周志祥1,宋雷2   

  1. 1.重庆交通大学,重庆 400074;2.四川省交通厅公路勘察规划设计院,四川 成都 610041
  • 收稿日期:2006-04-13 修回日期:2006-05-20 出版日期:2007-06-15 发布日期:2015-05-18
  • 作者简介:张鑫(1981—),男,四川l渠县人,硕士研究生,主要从事桥梁结构研究.
  • 基金资助:
    国家自然科学基金项目(50578168)

Analysis of Seismic Response of Long-span Arch Bridge

ZHANG Xin 1,ZHOU Zhi xiang1 ,SONG Lei2   

  1. 1.Chongqing Jiaotong University,Chongqing 400074,China;2.Highway Planning Survey Design and Research Institute of Sichuan Province Communication Department,Sichuan Chengdu 610041,China
  • Received:2006-04-13 Revised:2006-05-20 Online:2007-06-15 Published:2015-05-18

摘要: 以西藏尼木大桥为研究对象,结合该桥型特点,采用大型通用软件对其进行了模态分析和动力计算.通过模拟 地震响应得到该桥的反应特性,由此采用调谐质量控制器(TMD)对该桥进行受控分析.采用振型贡献率确定受控模 态,在获取TMD系统的优化参数后将其模拟入有限元模型中,并最终通过时程分析验证了TMD运用于拱桥被动减 震控制的有效性。

关键词: 地震反应特性, 模态分析, 参数优化, TMD, 时程分析法, 被动减震控制

Abstract: Taking Tibetan Nimu bridge as an object,and using the finite element soft,a mode and dynamic analysis was siren.By simulating the seismic responses,the characteristic of the bridge Was acquired and the TMD system was applyed to control the seismic responses of the bridge.The main vibration mode Was confirmed by the method of mod al mass ratio.The optimal param eters of TMD,when attained,were simulated into the finite element moda1.At last,the conclusion that fixing TMD in arch bridge is an efective passive vibration control method to reduce the seismic response of the structure,which is verified by the time-marching analysis result.

Key words: seismic response, mode analyse, parameter optimization, TMD, time-marching analysis, passive vibration control

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