Similarity Law of Scale-Model Test System for Vehicle-Bridge Coupling Vibration

doi:10.3969/j.issn.1674-0696.2015.02.03

Journal of Chongqing Jiaotong University(Natural Science) ›› 2015, Vol. 34 ›› Issue (2): 10-14.DOI: 10.3969/j.issn.1674-0696.2015.02.03

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Similarity Law of Scale-Model Test System for Vehicle-Bridge Coupling Vibration

Gui Shuirong^1,2, Zhang Chao¹, Chen Shuisheng¹

1. Department of Civil Engineering, East China Jiaotong University, Nanchang 330013, Jiangxi, China;2. School of Transportation, Southeast University, Nanjing 210096, Jiangsu, China

Received:2013-07-28 Revised:2014-02-07 Online:2015-04-15 Published:2015-06-01

车桥耦合振动缩尺模型试验的相似律研究

桂水荣^1,2,张超¹,陈水生¹

1.华东交通大学土木建筑学院，江西南昌 330013;2.东南大学交通学院，江苏南京 210096

作者简介:桂水荣(1979-)，女，江西九江人，副教授，博士研究生，主要从事公路桥梁车桥耦合振动方面的研究。E-mail:guishuirong@163.com。
基金资助:
国家自然科学基金项目(51268013,51468018);江西省教育厅科研项目(GJJ14384;GJJ14352);教育部工程研究中心资助项目(13TM02)

Abstract

Abstract: 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.

Key words: bridge engineering;similarity law, vehicle-bridge interaction system, dynamic scale-model test

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。

关键词: 桥梁工程, 相似律, 车桥耦合系统, 动力缩尺模型

CLC Number:

U441.3

Gui Shuirong, Zhang Chao, Chen Shuisheng. Similarity Law of Scale-Model Test System for Vehicle-Bridge Coupling Vibration[J]. Journal of Chongqing Jiaotong University(Natural Science), 2015, 34(2): 10-14.

桂水荣,张超,陈水生. 车桥耦合振动缩尺模型试验的相似律研究[J]. 重庆交通大学学报（自然科学版）, 2015, 34(2): 10-14.

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Similarity Law of Scale-Model Test System for Vehicle-Bridge Coupling Vibration

车桥耦合振动缩尺模型试验的相似律研究

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