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车桥耦合振动系统模型下桥梁冲击效应研究

Keywords: 桥梁工程,冲击效应,分离迭代算法,桥面不平度,车辆模型

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Abstract:

把桥梁和车辆看作车桥耦合振动体系的两个分离子系统,基于ANSYS软件建立了3种车辆和桥梁的有限元模型。考虑桥面不平度影响,以车轮与桥梁接触点的位移作为协调条件,采用分离迭代算法计算了车桥耦合系统的动力响应。采用快速傅立叶逆变换的方法,应用三角级数叠加模拟了5种等级的桥面不平度及其速度项。通过对一简支梁桥车桥耦合振动的数值模拟,研究了车辆模型、桥面状况和车速对桥梁冲击效应的影响。结果表明不同车辆模型对桥梁的冲击效应差别很大,桥面不平度对冲击效应的影响较车速大,桥梁的位移冲击效应大于内力冲击效应。因此,设计分析时宜采用能充分模拟车辆特性的复杂模型,移动荷载冲击系数取值建议以位移冲击系数为基准。

References

[1]  [J].应用力学学报,2004,21(2):66-69.LI Junqiang,LIU Hongzhao,HE Qinxiang,et al.A Simple Numerical Calculation for Coupled Vibration Responses of a Vehicle-bridge System
[2]  [J].Chinese Journal of Applied Mechanics,2004,21(2):66-69.
[3]  DA SILVA J G S.Dynamical Performance of Highway Bridge Decks with Irregular Pavement Surface
[4]  [J].Computers and Structures,2004(82):871-881.
[5]  王解军,张伟.汽车荷载作用下梁桥的动力冲击效应研究
[6]  [J].振动与冲击,2007,26(6):125-130.WANG Jiejun,ZHANG Wei.Stuay of Dynamic Impact Effects of Moving Vehicle Loading on Beam Bridge
[7]  [J].Journal of Vibration and Shock,2007,26(6):125-130.
[8]  王永平,陈彦江,傅金科.单车荷载下简支梁桥的动力特性和响应的实验研究
[9]  中华人民共和国交通部.JTG D60-2004公路桥涵设计通用规范
[10]  [S].北京:人民交通出版社,2004.P.R.China.Ministry of Communications.JTG D60-2004General Code for Design of Highway Bridges and Culverts
[11]  [S].Beijing:China Commanications Press,2004.
[12]  黄新艺.混凝土连续曲线梁桥在车辆荷载作用下的动力响应研究
[13]  [D].哈尔滨:哈尔滨工业大学,2009.HUANG Xinyi.Dynamic Response Research of Continuous Curved Concrete Bridges under Moving Vehicles
[14]  [D].Harbin:Harbin Inslitute of Technology,2009.
[15]  李国豪.桥梁结构稳定与振动
[16]  [M].第2版.北京:中国铁道出版社,2002.LI Cuohao.Stability and Vibration of Bridge Structures
[17]  [M].2nd ed.Beijing:China Railway Press,2002.
[18]  李小珍,马文彬,强士中.车桥系统耦合振动分析的数值解法
[19]  [J].振动与冲击,2002,21(3):21-26.LI Xiaozhen,MA Wenbin,QIANC Shizhong.Coupting Vibration Analysis of Vehicle-bridge System by Iterative Solution Method
[20]  [J].Journal of Vibration and Shock,2002,21(3):21-26.
[21]  李军强,刘宏昭,何钦象,等.车-桥系统耦合振动响应的简便计算
[22]  [J].土木工程学报,1995,28(5):39-47.WANG Yongping,CHEN Yanjiang,FU Jinke.Experimental and Theoretical Analysis of Dynamic and Response of Highway Bridge under Single Moving Vehicle
[23]  [J].Journal of Civil Engineering,1995,28(5):39-47.
[24]  毛清华,项海帆.公路桥梁车辆振动的理论和实验研究
[25]  [J].土木工程学报,1990,23(2):61-68.MAO Qinghua,XIANG Haifan.Theoretical and Experimental Stuay on Highway Bridge Vibration due to Vehicle Loads
[26]  [J].Journal of Civil Engineering,1990,23(2):61-68.
[27]  KWASNIEWSKI L,WEKFT,FR J.Experimental Evaluation of Oynainic Effects for a Selected Highway Bridge
[28]  [J].Journal of Performance of Constructed Facilities,2006,20(3):253-260.
[29]  桂水荣,陈水生,许士强.移动荷载下简支梁桥3种车桥耦合模型研究
[30]  [J].华东交通大学学报,2007,24(1):35-39.GUI Shuirong,CHEN Shuisheng,XU Shiqiang.Comparison of Three Models for Vehicle Bxiage Coupled Vibration of Simple Beam Bridge Subjected to Moving Load
[31]  [J].Journal of East China Jiaotong University,2007,24(1):35-39.
[32]  LAW S S,ZHU X Q.Briclge Dynamic Response due to Road Surface Roughness and Braking of Vehicle
[33]  [J].Journal of Sound and Vibration,2005,282(325):805-830.
[34]  夏禾,张楠.车辆与结构动力相互作用
[35]  [M].第2版.北京:科学出版社,2005.XIA He,ZHANC Nan.Dynamic Interaction of Vehicle and Bridge
[36]  [M].2nd ed.Beijing:Science Press,2005.

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