车桥耦合振动缩尺模型试验的相似律研究
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
基于公路桥梁车桥耦合振动特性及结构动力模型试验相似理论,提出了车桥耦合振动缩尺模型试验相似关系。以某假设简支梁桥为原型,根据原型结构动力特性及相似比尺,计算了车辆与桥梁动力特性参数;对比分析了原型桥与模型桥的静、动态响应,校验所提出的车桥耦合振动缩尺模型相似律。结果表明:车桥耦合振动室内缩尺模型需同时满足弹性相似律及重力相似律。
The similarity laws of bridge-vehicle interaction system were presented based on similarity theories of structure dynamic model test and dynamic property of highway bridge-vehicle coupling vibration. Taken a fictitious simple supported beam bridge as an example,the parameters of vehicle model and bridge model were calculated according to the prototype structure dynamic properties and scale factor of geometry. Comparative analysis of static and dynamic response between prototype bridge and model bridge,verified the vehicle-bridge coupling vibration model similarity law. The results showed that,the scale model test for vehicle-bridge coupling vibration need to satisfy elastic similarity law and gravity similarity simultaneously.
引文
[1]李小珍,张黎明,张洁.公路桥梁与车辆耦合振动研究现状与发展趋势[J].工程力学,2008,25(3):230-240.Li Xiaozhen,Zhang Liming,Zhang Jie.State-of-the-art review and trend of studies on coupling vibration for vehicle and highway bridge system[J].Engineering Mechanics,2008,25(3):230-240.
    [2]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[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[J].Chinese Journl of Applied Mechanics,2004,21(2):66-69.
    [3]陈燊,唐意,黄文机.多车荷载下刚架拱桥车振仿真可视化研究[J].工程力学,2005,22(1):218-222.Chen Shen,Tang Yi,Huang Wenji.Visual vibration simulation of framed arch bridge under multi-vehicle condition[J].Engineering Mechanics,2005,22(1):218-222.
    [4]Henchi K,Fafard M,Talbot M,et al.An efficient algorithm for dynamic analysis of bridges under moving vehicles using a coupled modal and physical components approach[J].Journal of Sound and Vibration,1998,212(4):663-683.
    [5]谭国金,刘寒冰,程永春,等.基于车-桥耦合振动的简支梁桥冲击效应[J].吉林大学学报:工学版,2011,41(1):62-67.Tan Guojin,Liu Hanbing,Cheng Yongchun,et al.Analysis of impact of vehicle to simple supported beam bridge based on vehiclebridge coupled vibration[J].Journal of Jilin University:Engineerin and Technology,2011,41(1):62-67.
    [6]吴铭汉,桂水荣,陈水生.4种车辆模型作用下T形刚构桥冲击系数对比研究[J].中外公路,2008,28(6):130-133.Wu Minghan,Gui Shuirong,Chen Shuisheng.Comparison of impact factors for four models crossing T-type rigid bridge[J].Journal of China&Foreign Highway,2008,28(6):130-133.
    [7]李奇,吴定俊,邵长宇.考虑车体柔性的车桥耦合系统建模与分析方法[J].振动工程学报,2011,24(1):41-47.Li Qi,Wu Dingjun,Shao Changyu.Modeling and dynamic analysis method of vehicle-bridge coupling system considering car-body flexibility[J].Journal of Vibration Engineering,2011,24(1):41-47.
    [8]陈星烨,颜东煌,马晓燕.斜拉桥试验模型相似性推导与动力问题的数值分析[J].岩石力学与工程学报,2006,25(增刊1):3206-3211.Chen Xingye,Yan Donghuang,Ma Xiaoyan.Similarity deduction of test model and numerical analysis of dynamical issues for cablestayed bridge[J].Chinese Journal of Rock Mechanics and Engineering,2006,25(Sup1):3206-3211.
    [9]王曙光,刘伟庆,徐秀丽,等.大跨连续梁桥纵向消能减震振动台模型试验[J].中国公路学报,2009,22(5):54-59.Wang Shuguang,Liu Weiqing,Xu Xiuli,et al.Shaking table model test of long-span continuous girder bridge with longitudinal seismic energy dissipating[J].China Journal of Highway and Transport,2009,22(5):54-59.
    [10]王英学,骆建军,李伦贵,等.高速列车模型试验装置及相似特征分析[J].西南交通大学学报,2004,39(1):20-24.Wang Yingxue,Luo Jianjun,Li Lungui,et al.Model experiment system for high-speed trains and analysis of its similarity[J].Journal of Southwest Jiaotong University,2004,39(1):20-24.
    [11]Chan T H T,Ashebo D B.Moving axle load from multi-span continuous bridge:laboratory study[J].Journal of Vibration and Acoustics,2006,128:521-526.
    [12]林皋,朱彤,林蓓.结构动力模型试验的相似技巧[J].大连理工大学学报,2000,40(1):1-8.Lin Gao,Zhu Tong,Lin Bei.Similarity technique for dynamic structural model test[J].Journal of Dalian University of Technology,2000,40(1):1-8.
    [13]迟世春,林少书.结构动力模型试验相似理论及其验证[J].世界地震工程,2004,20(4):11-20.Chi Shichun,Lin Shaoshu.Validation of similitude laws for dynamic structural model test[J].World Earthquake Engineering,2004,20(4):11-20.
    [14]王运金,桂水荣,陈水生.连续梁桥车桥耦合振动分析的数值解法[J].华东交通大学学报,2007,24(4):25-29.Wang Yunjin,Gui Shuirong,Chen Shuisheng.An efficient algorithm for coupled vibration analysis of continuous bridges under moving vehicle[J].Journal of East China Jiaotong University,2007,24(4):25-29.

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心