Vibration reduction effect of a novel rubber anti-vibration bearing for rail transit viaduct

PDF(1669 KB)

Journal of Vibration and Shock ›› 2020, Vol. 39 ›› Issue (8) : 64-71.

SUN Liangming，HU Zhen，DU Youfu，XIE Weiping

Author information +

History +

Abstract

A novel rubber anti-vibration bearing was developed to reduce the environmental vibration caused by train running on the rail transit viaduct.This novel bearing adapts a design of arranging high damping thick rubber block with slope, which can reduce vertical vibration and provide a large horizontal stiffness.The finite element model of the upper mass block-rubber bearing-pier system was established to study the vibration reduction effect of the novel bearing through vertical sweep excitation.Then, a series of working conditions were designed to analyze the factors which can influence the vibration reduction effect of the novel bearing.Results indicate that the amplitude of excitation force has no effect on the vibration insertion loss of the novel bearing, but the vibration insertion loss will be reduced if the pier height increases; when the excitation force is 140 kN and the pier height is 6 m, the vibration insertion loss of the novel bearing is 17.53 dB; when the bearing capacity is met, increasing the inclination angle of rubber blocks and the total thickness of rubber layer, and reducing the number of rubber layer, can reduce the compression stiffness of the novel bearing and then improve the vibration reduction effect.

Key words

rail transit viaduct / rubber anti-vibration bearing / vibration reduction effect / numerical simulation

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

SUN Liangming，HU Zhen，DU Youfu，XIE Weiping. Vibration reduction effect of a novel rubber anti-vibration bearing for rail transit viaduct[J]. Journal of Vibration and Shock, 2020, 39(8): 64-71

References

［1］夏禾.交通环境振动工程［M］.北京: 科学出版社, 2010. ［2］YAU J D, WU Y S, YANG Y B.Impact response of bridges with elastic bearings to moving loads ［J］.Journal of Sound and Vibration, 2001, 248(1): 9-30. ［3］YANG Y B, LIN C L, YAU J D, et al.Mechanism of resonance and cancellation for train-induced vibration on bridges with elastic bearings ［J］.Journal of Sound and Vibration, 2004, 269(1): 345-360. ［4］KAWATANI M, KOBAYASHI Y, KAWAKI H.Influence of elastomeric bearings on traffic-induced vibration of highway bridges ［J］.Transportation Research Record: Journal of the Transportation Research Board, 2000,1696: 76-82. ［5］KIM C W, KAWATANI M, HWANG W S.Reduction of traffic-induced vibration of two-girder steel bridge seated on elastomeric bearings ［J］.Engineering Structures, 2004, 26(14): 2185-2195. ［6］蒋通, 马超勇, 张昕.弹性支承条件下车-桥体系的振动分析［J］.力学季刊, 2004, 25(2): 256-263. JIANG Tong, MA Chaoyong, ZHANG Xin.Dynamic analysis of train-bridge system with elastic supports［J］.Chinese Quarterly of Mechanics, 2004, 25(2): 256-263. ［7］张志俊, 李小珍, 张迅, 等.弹性支座对桥梁车致振动的隔振效果研究［J］.工程力学, 2015, 32(4): 103-111. ZHANG Zhijun, LI Xiaozhen, ZHANG Xun, et al.Study on the vibration isolation effects of elastic bearings on train-induced vibration of railway bridge ［J］.Engineering Mechanics, 2015, 32(4): 103-111. ［8］LI X Z, ZHANG Z J, ZHANG X.Using elastic bridge bearings to reduce train-induced ground vibrations: an experimental and numerical study［J］.Soil Dynamics & Earthquake Engineering, 2016, 85: 78-90. ［9］陈浩文.厚肉型橡胶隔振支座在地铁周边建筑物隔振中的应用［D］.北京:清华大学, 2014. ［10］XIE W P, DU Y F, SUN L M, et al.Study on the stiffness correction method of novel antivibration bearing for urban rail transit viaduct［J］.Shock and Vibration, 2017, 2017: 1-15. ［11］郑明军, 王文军, 陈政男, 等.橡胶Mooney-Rivlin模型力学性能常数的确定［J］.橡胶工业, 2003, 50(8): 462-465. ZHENG Mingjun, WANG Wenjun, CHEN Zhenggan, et al.Determination for mechanical constants of rubber Mooney-Rivlin model ［J］.China Rubber Industry, 2003, 50(8): 462-465. ［12］潘孝勇.橡胶隔振器动态特性计算与建模方法的研究［D］.杭州：浙江工业大学, 2009. ［13］橡胶支座第2部分: 桥梁隔震橡胶支座: GB 20688.2—2006 ［S］.北京: 中国标准出版社, 2006. ［14］Anti-seismic devices: BSEN 15129—2009 ［S］.［S.l.］: British Standards, 2009.