考虑行波效应的刚架系杆拱桥减隔震分析

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Abstract Abstract：Research purposes： Taking a frame tied bridge with continuous box girder whose span arrangement is （24+160+24） m as an engineering background, this paperadopts multi-point excitation realized by large mass method to consider the effect of traveling wave. And the responses of structures with different systems were analyzed comparatively, and parameters of elastic link device and viscous damper were selected reasonably to provide the basis for the reasonable selection of seismic isolation measures of arch bridge.

Research conclusions：(1) Parameters of damping device have a great impact on damping effect when the effect of traveling wave is considered. The comparison results of damping effect indicate that elastic link device and viscous damper have the same damping effect to axial force of ribs, but choosing elastic link device is better when involving decreasing bending moment of ribs. (2) The application of isolation system and the symmetry of damping device's set can make the distribution of internal force of ribs evenly, which can relieve the adverse effect of traveling wave. (3) Only using isolation system can reduce structure frequency effectively, but will lead to large displacement amplitude. The installation of damping device can reduce displacement amplitude significantly. (4) The research results can be used in guiding for seismic design of arch bridge.

Key words： Key words: frame tied bridge large mass method traveling wave effect seismic isolation

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http://tdgcxb.crec.cn/EN/ OR http://tdgcxb.crec.cn/EN/Y2015/V32/I3/46

［1］孙潮，陈宝春. 钢管混凝土拱桥抗震研究进展［J］. 哈尔滨工业大学学报, 2003(增):240-243.
Sun Chao, Chen Baochun. Development of Seismic Analysis of Concrete-Filled Steel Tubular Arch Bridges［J］. Journal of Harbin Institute of Technology, 2003(S):240-243.
［2］范立础，王志强. 我国桥梁隔震技术的应用［J］. 振动工程学报, 1999(2):173-181.
Fan Lichu, Wang Zhiqiang. Application of Seismic Isolation Technology for Bridges in China［J］. Journal of Vibration Engineering, 1999(2):173-181.
［3］叶爱君，胡世德，范立础. 超大跨度斜拉桥的地震位移控制［J］. 土木工程学报, 2004(12):38-43.
Ye Aijun, Hu Shide, Fan Lichu. Seismic Displacement Control for Super-Long-Span Cable-Stayed Bridge［J］. China Civil Engineering Journal, 2004(12):38-43.
［4］刘振宇，李乔，蒋劲松，等. 南宁大桥粘滞阻尼器参数分析［J］. 桥梁建设, 2007(4):25-28.
Liu Zhenyu, Li Qiao, Jiang Jinsong,etc. Analysis of Parameters of Nanning Bridge Viscous Dampers［J］. Bridge Construction, 2007(4):25-28.
［5］李正英，李正良，汪之松，等. 粘滞阻尼器拱桥结构减震控制研究［J］. 振动与冲击, 2007(1):56-60.
Li Zhengying, Li Zhengliang, Wang Zhisong, etc. Study on Seismic Response Control of an Arch Bridge with Viscous Dampers［J］. Journal of Vibration and Shock, 2007(1):56-60.
［6］邓稳平，王浩，李爱群，等. 高烈度区连续梁桥减震的粘滞阻尼器参数分析［J］. 振动与冲击, 2012(16): 92-97.
Deng Wenping, Wang Hao, Li Aiqun,etc. Parametric Analysis of Viscous Dampers for Earthquake Mitigation of Continuous Bridges in High Intensity Region［J］. Journal of Vibration and Shock, 2012(16):92-97.
［7］王浩，李爱群，郭彤. 超大跨悬索桥地震响应的综合最优控制研究［J］. 湖南大学学报(自然科学版), 2006(3):6-10.
Wang Hao, Li Aiqun, Guo Tong. Compositive Optimal Control of the Seismic Response for Super-Long-Span Suspension Bridges［J］. Journal of Hunan University(Natural Sciences), 2006(3):6-10.
［8］刘俊. 高烈度区多跨刚构连续梁桥减隔震设计研究［J］. 铁道工程学报, 2013(5):40-46.
Liu Jun. Research on Seismic Isolation Design of Multi-Span Rigid Frame-Continuous Girder Bridge in High Seismic Intensity Area［J］. Journal of Railway Engineering Society, 2013(5):40-46.
［9］乔普拉. 结构动力学：理论及其在地震工程中的应用［M］. 北京: 高等教育出版社, 2007.
Anil K. Chopra. Dynamics of Structures Theory and Applications to Earthquake Engineering［M］. Beijing: Higher Education Press, 2007.
［10］李小珍，雷虎军，朱艳. 车-轨-桥动力系统中Rayleigh阻尼参数分析［J］. 振动与冲击, 2013(21):52-57.
Li Xiaozhen, Lei Hujun, Zhu Yan. Analysis of Rayleigh Damping Parameters in A Dynamic System of Vehicle-Track-Bridge［J］. Journal of Vibration and Shock,2013(21):52-57.
［11］周国良，李小军，刘必灯，等. 大质量法在多点激励分析中的应用、误差分析与改进［J］. 工程力学, 2011(1):48-54.
Zhou Guoliang, Li Xiaojun, Liu Bideng, etc. Error Analysis and Improvements of Large Mass Method Used in Multi-Support Seismic Excitation Analysis［J］. Engineering Mechanics, 2011(8):30-36.
［12］GB 50111—2006，铁路工程抗震设计规范［S］.
GB 50111—2006，Code for Seismic Design of Railway Engineering［S］