车桥随机振动作用下的桥梁动态影响线研究

徐文涛; 张建波; 魏星

doi:10.3879/j.issn.1000-0887.2015.09.003

车桥随机振动作用下的桥梁动态影响线研究

doi: 10.3879/j.issn.1000-0887.2015.09.003

郑州大学力学与工程科学学院 , 郑州 450001

基金项目: 国家自然科学基金（11402235）；教育部科学技术研究重点项目(212105)

详细信息

作者简介:
徐文涛（1980—），男，河南人，副教授，博士，硕士生导师(E-mail: xukeyangzi@aliyun.com);魏星（1981—），男，河南人，讲师，硕士(通讯作者. E-mail: 12900664@qq.com).

中图分类号: U441.2
计量
- 文章访问数: 1286
- HTML全文浏览量: 77
- PDF下载量: 1292
- 被引次数: 0
出版历程
- 收稿日期: 2015-04-25
- 修回日期: 2015-05-21
- 刊出日期: 2015-09-15

Dynamic Deflection Influence Line of Bridge Subjected to VehicleBridge Random Vibration

School of Mechanics & Engineering Science, Zhengzhou University, Zhengzhou 450001, P.R.China

Funds: The National Natural Science Foundation of China(11402235)

摘要

摘要: 将传统的静态影响线概念推广到动态影响线范围，研究了在车辆荷载和桥面随机不平度的作用下，简支梁桥和三跨弹性支承梁桥跨中挠度的动态影响线.基于虚拟激励法将桥面不平度转化为确定性的简谐激励，并采用精细积分法对车桥系统方程求解，获得了桥梁跨中挠度动态影响线的均值和标准差.基于法则构造虚拟激励输出响应的确定值计算方法，获得了桥梁挠度动态影响线的确定性值域.最后通过算例分析了桥梁动态影响线的随机特性和车速与桥面不平度等级变化对桥梁动态影响线的影响，并研究了简支梁桥和弹性支承梁桥在随机振动作用下的动态影响线差异.
- 桥面不平度 /
- 虚拟激励法 /
- 精细积分法 /
- 动态影响线
Abstract: Traditional static influence line was developed into dynamic field, and dynamic influence lines of deflections in the mid span of a simply-supported bridge and a three-span elastically supported bridge were studied by considering the effect of interaction between the bridge, the bridge random surface roughness and the vehicle. To obtain the mean value and standard deviation of dynamic influence lines in the mid span of bridge, deterministic harmonic excitations were derived from bridge surface roughness with pseudo excitation method, and the equation of vehicle-bridge system was solved with precise integration method. Based on 3σ method, deterministic values range of dynamic deflections were obtained. Finally, the random characteristics of dynamic influence lines were analyzed with numerical examples, and the effects of vehicle velocity and bridge random surface roughness on dynamic influence line were discussed. Then the difference between the simply-supported bridge and the three-span elastically supported bridge was studied upon dynamic influence line.
- bridge surface roughness /
- pseudo excitation method /
- precise integration method /
- dynamic influence line

HTML全文

参考文献(16)

[1]	唐光武, 廖敬波, 赵岩, 郭骞. 基于影响线的桥梁结构评定理论研究进展[J]. 公路交通科技, 2008(6): 39-43, 47.(TANG Guang-wu, LIAO Jing-bo, ZHAO Yan, GUO Qian. Research advance of assessment theory for bridge structure based on influence line[J]. Technology of Highway and Transport,2008(6): 39-43, 47.(in Chinese))
[2]	李贤东. 基于准静态广义影响线的双曲拱桥承载力评定初步研究[D]. 硕士学位论文. 重庆: 重庆交通大学, 2009.(LI Xian-dong. Preliminary study on load rating of two-way curved arch bridge based on quasi-static generalized influence line[D]. Master Thesis. Chongqing: Chongqing Jiaotong University, 2009.(in Chinese))
[3]	Strauss A, Wender R, Frangopol D M, Bergmeister K. Influence line-model correction approach for the assessment of engineering structures using novel monitoring techniques[J]. Smart Structures and Systems,2012,9(1): 1-20.
[4]	施颖, 宣纪明, 宋一凡. 不平整度桥面下连续梁桥车桥耦合振动分析[J]. 桥梁建设, 2009(6): 15-18, 22.(SHI Ying, XUAN Ji-ming, SONG Yi-fan. Analysis of vehicle-bridge coupling vibration of continuous girder bridge under uneven deck[J]. Bridge Construction,2009(6): 15-18, 22.(in Chinese))
[5]	李武生, 王贵春. 基于桥面不平顺的车桥耦合振动分析[J]. 公路工程, 2014,39(4): 98-102, 127.(LI Wu-sheng, WANG Gui-chun. The analysis on vehicle-bridge coupled vibration due to bridge pavement surface roughness[J]. Highway Engineering,2014,39(4): 98-102, 127.(in Chinese))
[6]	叶茂, 张鹏, 傅继阳, 曹文斌, 任珉. 带弹性支撑多跨连续梁桥的车桥耦合演变随机振动[J]. 振动与冲击, 2014,33(3): 76-82.(YE Mao, ZHANG Peng, FU Ji-yang, CAO Wen-bin, REN Min. Coupled vehicle-bridge evolutionary random vibration for a multi-span continuous bridge with elastic bearings[J]. Journal of Vibration and Shock,2014,33(3): 76-82.(in Chinese))
[7]	盛国刚, 李传习, 赵冰. 多个移动车辆作用下简支梁的动力响应分析[J]. 工程力学, 2006,23(12): 154-158.(SHENG Guo-gang, LI Chuan-xi, ZHAO Bing. Dynamic analysis of a simply-supported beam subjected to moving vehicles[J]. Engineering Mechanics,2006,23(12): 154-158.(in Chinese))
[8]	谭国金, 刘寒冰, 程永春, 王龙林, 刘斌. 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 Guo-jin, LIU Han-bing, CHENG Yong-chun, WANG Long-lin, LIU Bin. Analysis of impact of vehicle to simply supported beam bridge based on vehicle-bridge coupled vibration[J]. Journal of Jilin University(Engineering and Technology Edition),2011,41(1): 62-67.(in Chinese))
[9]	殷新锋, 蔡春盛, 刘杨. 基于面接触的车桥耦合振动研究[J]. 振动工程学报, 2012,25(3): 244-252.(YIN Xin-feng, CAI Chun-sheng, LIU Yang. Vehicle-bridge coupled vibration based on the patch contact[J]. Journal of Vibration Engineering,2012,25(3): 244-252.(in Chinese))
[10]	易晋生, 顾安邦, 王小松. 车桥耦合振动理论在桥面不平度研究中的应用[J]. 重庆交通大学学报(自然科学版), 2013,32(4): 560-563.(YI Jin-sheng, GU An-bang, WANG Xiao-song. Application of vehicle-bridge coupling vibrations theory in the study of bridge surface roughness[J]. Journal of Chongqing Jiaotong University(Natural Science),2013,32(4): 560-563.(in Chinese))
[11]	LIAO Jing-bo, TANG Guang-wu, MENG Li-bo, LIU Hui-geng, ZHANG You-jin. Finite element model updating based on field quasi-static generalized influence line and its bridge engineering application[J]. Procedia Engineering,2012,31: 348-353.
[12]	李小珍, 朱艳, 强士中. 车桥系统空间非平稳随机分析[J]. 铁道学报, 2012,34(6): 88-94.(LI Xiao-zhen, ZHU Yan, QIANG Shi-zhong. Spatial train-bridge coupling system non-stationary stochastic responses analysis[J]. Journal of China Railway Society,2012,34(6): 88-94.(in Chinese))
[13]	林家浩, 张亚辉. 随机振动的虚拟激励法[M]. 北京: 科学出版社, 2004.(LIN Jia-hao, ZHANG Ya-hui. Pseudo Excitation Method of Random Vibration [M]. Beijing: Science Press, 2004.(in Chinese))
[14]	钟万勰. 结构动力方程的精细时程积分法[J]. 大连理工大学学报, 1994,34(2): 131-136.(ZHONG Wan-xie. On precise time-integration method for structural dynamics[J]. Journal of Dalian University of Technology,1994,34(2): 131-136.(in Chinese))
[15]	赵岩, 张亚辉, 林家浩. 车辆随机振动功率谱分析的虚拟激励法概述[J]. 应用数学和力学, 2013,34(2): 107-117.(ZHAO Yan, ZHANG Ya-hui, LIN Jia-hao. Summary on the pseudo-excitation method for vehicle random vibration PSD analysis[J]. Applied Mathematics and Mechanics,2013,34(2): 107-117.(in Chinese))
[16]	叶茂, 谭平, 任珉, 周福霖, 王道远. 中间带弹性支承各种边界条件连续梁模态分析[J]. 工程力学，2010,27(9): 80-85.(YE Mao, TAN Ping, REN Min, ZHOU Fu-lin, WANG Dao-yuan. Modal analysis of multi-span beams with intermediate flexible constraints and different boundary conditions[J]. Engineering Mechanics,2010,27(9): 80-85.(in Chinese))

施引文献

资源附件(0)

访问统计

计量

文章访问数: 1286
HTML全文浏览量: 77
PDF下载量: 1292
被引次数: 0

姓名
邮箱
手机号码
标题
留言内容
验证码

留言板

车桥随机振动作用下的桥梁动态影响线研究

doi: 10.3879/j.issn.1000-0887.2015.09.003

作者简介:
徐文涛（1980—），男，河南人，副教授，博士，硕士生导师(E-mail: xukeyangzi@aliyun.com);魏星（1981—），男，河南人，讲师，硕士(通讯作者. E-mail: 12900664@qq.com).

计量

Dynamic Deflection Influence Line of Bridge Subjected to VehicleBridge Random Vibration

计量

目录

留言板

车桥随机振动作用下的桥梁动态影响线研究

doi: 10.3879/j.issn.1000-0887.2015.09.003

作者简介: 徐文涛（1980—），男，河南人，副教授，博士，硕士生导师(E-mail: xukeyangzi@aliyun.com);魏星（1981—），男，河南人，讲师，硕士(通讯作者. E-mail: 12900664@qq.com).

计量

出版历程

Dynamic Deflection Influence Line of Bridge Subjected to VehicleBridge Random Vibration

计量

出版历程

目录

作者简介:
徐文涛（1980—），男，河南人，副教授，博士，硕士生导师(E-mail: xukeyangzi@aliyun.com);魏星（1981—），男，河南人，讲师，硕士(通讯作者. E-mail: 12900664@qq.com).