Cable&rsquo;s compound vibration reduction method under cable-girder coupled vibration

PDF(1853 KB)

Journal of Vibration and Shock ›› 2018, Vol. 37 ›› Issue (5) : 240-247.

Cable’s compound vibration reduction method under cable-girder coupled vibration

Liang Dong1,2, Di Fangdian1, Chen Hongxia1, Duan Wenbo1, Li Zishuo1

Author information +

History +

Abstract

Both results of study and engineering practice showed that the damping effect of a viscous damper is weakened when cable-girder coupled vibration happens. In order to ensure good vibration damping effect of a viscous damper under cable-girder coupled vibration, a cable’s compound vibration reduction method with a viscous damper and an added MTMD was proposed here. A simplified theoretical model with cable, viscous damper and MTMD was analyzed using the complex modal analysis method, and a test model of a cable-damper-MTMD system was designed. Both theoretical analysis and test results showed that the added MTMD designed according to the main contribution mode can assist the viscous damper to suppress the vibration of the main mode to utmost extent; the proposed method can effectively compensate the loss of damping effect of the viscous damper due to cable-girder coupled vibration.

Key words

cable-stayed bridge / cable-girder coupled vibration / compound vibration reduction of cable / theoretical analysis / test

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

Liang Dong1,2, Di Fangdian1, Chen Hongxia1, Duan Wenbo1, Li Zishuo1 . Cable’s compound vibration reduction method under cable-girder coupled vibration[J]. Journal of Vibration and Shock, 2018, 37(5): 240-247

References

[1] 杨素哲，陈艾荣.超长斜拉索的参数振动[J].同济大学学报：自然科学版，2005,33（10）：1303-1308.
YANG Su-zhe,CHEN Ai-rong.Parametric oscillation of super long stay cables[J].Journal of Tongji University:Natural Science Edition,2005,33(10) :1303-1308.
[2] 孙利民. 苏通长江公路大桥主桥超长斜拉索振动和减振研究[R], 上海:同济大学土木工程防灾国家重点实验室,2004.
SUN Li-min.The Sutong Yangtse River Highway Bridge long cable vibration and vibration [R],Shanghai:State Key Laboratory for Disaster Reduction in Civil Engineering inTongji University,2004.
[3] 罗帅，刘红军，王刚. 考虑桥面运动的斜拉桥减振模型[J]. 深圳大学学报理工版，2010,27（4）：470-474.
LUO Shuai,LIU Hong-jun,WANG Gang.The characteristic of stay-cable damping system in consideration of bridge deck vibration[J]. Journal of Shenzhen university science and engineering. 2010,27（4）：470-474.
[4] PARKER M R.Synthesis of speed zoning practices[R]. Washingdon D C:US Department of Transportation,1985.
[5] 顾明，杜小庆.模拟降雨条件下斜拉桥拉索风雨激振及控制的试验研究[J]. 土木工程学报，2004,37（7）:101-105.
GU Ming,DU Xiao-qing,A testing of rain-wind induced cable vibration and its control of cable-stayed bridge under simulated rain[J].China Civil Engineering Journal.2004,37(7):101-105.
[6] 布占宇. 斜拉桥地震响应分析中的索桥耦合振动和阻尼特性研究[D]. 杭州:浙江大学,2005.
BU Zhan-yu.Cable-deck coupled vibration and damping characteristic research in the seismic response analysis of cable-stayed bridges, Hangzhou: Zhejiang University,2005.
[7] S.M.Palmquist. Vibrations of Cable-Stayed Bridges[J]. Forensic Engineering，2006:364-373.
[8] 李寿英. 斜拉桥拉索风雨激振机理及其控制理论研究[D].上海: 同济大学,2005.
LI Shou-ying. Theoretical research of rain-wind-induced vibration of cables in cable-stayed bridges and its mitigation [D].Shanghai: Tongji University,2005.
[9] 梁栋,陈培,李岩峰.索梁耦合振动对拉索阻尼器的影响机理[J].振动、测试与诊断,2014,34(1):113-117.
LIANG Dong,CHEN Pei,LI Yan-feng. Effects and cause of coupling vibration between girder and cable on performance of cable dampers for cable-stayed bridges[J]. Journal of Vibration,Measurement & Diagnosis,2014,34(1):113-117.
[10] 梁栋, 孙利民, 程纬等.斜拉桥梁主梁振动对拉索阻尼器体系减振效果的影响[J]. 力学学报, 2009, 41(4):563-574.
LIANG Dong,SUN Li-min,CHENG Wei,et al. Effect of girder’s vibration on performance of cable dampers for cable-stayed bridges. [J].Chinese Journal of Theoretical and Applied Mechanics,2009,41(4): 63-574.
[11] 罗帅, 刘红军, 王刚. 斜拉桥-调谐质量阻尼器系统复模态分析[J]. 哈尔滨工业大学学报, 2012(6): 58-61.
LUO Shuai,LIU Hong-jun,WANG Gang. Complex modal analysis of stay cable with tuned mass damper system[J].Journal of Harbin institute of technology. 2012(6): 58-61.