|Table of Contents|

Comparison of wind-vehicle-bridge coupling vibration characteristics for three-line three-tower suspension bridge(PDF)

《交通运输工程学报》[ISSN:1671-1637/CN:61-1369/U]

Issue:
2015年06期
Page:
17-25
Research Field:
道路与铁道工程
Publishing date:

Info

Title:
Comparison of wind-vehicle-bridge coupling vibration characteristics for three-line three-tower suspension bridge
Author(s):
LI Yong-le;  XU Xin-yu;  YAN Nai-jie;  DENG Jiang-tao;  XIANG Huo-yue
School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China
Keywords:
bridge engineering;  WVB system;  coupling vibration;  three-line three-tower suspension bridge;  different section form;  wind load
PACS:
U441.3
DOI:
-
Abstract:
Taking the two design schemes(steel-box-truss and steel-truss schemes)of a three-line three-tower suspension bridge as the research object, the three-component coefficients of forces for vehicle and bridge were obtained by the wind tunnel tests of vehicle-bridge system section model. Based on the spatial dynamics model of wind-vehicle-bridge(WVB)system, the dynamic characteristics of bridge and the coupling vibration characteristics of WVB system were analyzed by using the self-developed software BANSYS. Analysis result indicates that the natural frequencies of three-line three-tower suspension bridge are comparatively low. The aerodynamic characteristics of vehicle were greatly affected by track position, and the drag coefficient of windward vehicle for the steel-truss scheme is about 2.2 times that for the steel-box-truss scheme. When wind speed is 0, the dynamic responses of bridge and vehicle increase with the increase of vehicle speed. The displacements of bridge for the steel-truss scheme are bigger than those for the steel-box-truss scheme at the same vehicle speed, which is resulted from the weaker whole stiffness for the steel-truss scheme. When wind speed is considered, the lateral responses of bridge greatly increase with wind speed increasing. When vehicle is running on the windward side and wind speed increases from 15 m·s-1 to 25 m·s-1, the lateral displacements of bridge for the steel-box-truss and steel-truss schemes enlarge to approximate 2.4 times and 3.8 times respectively, and crosswind is dominant to the lateral responses of bridge. On the whole, the bridge responses for the steel-truss scheme are larger than those for the steel-box-truss scheme under the same wind speed. As for the same scheme, vehicle responses increase with wind speed increasing. When wind speed reaches 25 m·s-1, the dynamic responses remarkably increase, and the maximum response index increases by 71.6% compared with that at the wind speed of 15 m·s-1. 4 tabs, 18 figs, 22 refs.

References:

[1] YOSHIDA O, OKUDA M, MORIYA T. Structural characteristics and applicability of four-span suspension bridge[J]. Journal of Bridge Engineering, 2004, 9(5): 453-463.
[2] 肖汝诚,姜 洋,项海帆.缆索承重桥的体系比选[J].同济大学学报:自然科学版,2013,41(2):179-185,207.XIAO Ru-cheng, JIANG Yang, XIANG Hai-fan. Comparison between structural systems of cable supported bridges[J].Journal of Tongji University: Natural Science, 2013, 41(2): 179-185, 207.(in Chinese)
[3] NAZIR C P. Multispan balanced suspension bridge[J]. Journal of Structural Engineering, 1986, 112(11): 2512-2527.
[4] WANG Hao, TAO Tian-you, ZHOU Rui, et al. Parameter sensitivity study on flutter stability of a long-span triple-tower suspension bridge[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2014, 128: 12-21.
[5] 万田保,王忠彬.泰州长江公路大桥三塔两跨悬索桥总体稳定性分析[J].桥梁建设,2008(2):17-19,26.WAN Tian-bao, WANG Zhong-bin. Analysis of global stability of three-tower and two-span suspension bridge of Taizhou Changjiang River Highway Bridge[J]. Bridge Construction, 2008(2): 17-19, 26.(in Chinese)
[6] 张文明,葛耀君.三塔双主跨悬索桥动力特性精细化分析[J].中国公路学报,2014,27(2):70-76.ZHANG Wen-ming, GE Yao-jun. Refinement analysis of dynamic characteristics of suspension bridge with triple towers and double main spans[J]. China Journal of Highway and Transport, 2014, 27(2): 70-76.(in Chinese)
[7] 梁 鹏,吴向男,李万恒,等.三塔悬索桥静动力特性与中塔选型[J].交通运输工程学报,2011,11(4):29-35.LIANG Peng, WU Xiang-nan, LI Wan-heng, et al.Static and dynamic properties of three-tower suspension bridge and structural type selection of mid-tower[J]. Journal of Traffic and Transportation Engineering, 2011, 11(4): 29-35.(in Chinese)
[8] 李加武,王 新,张 悦,等.桥梁风致振动的混沌特性[J].交通运输工程学报,2014,14(3):34-42.LI Jia-wu, WANG Xin, ZHANG Yue, et al. Chaos characteristics of wind-induced vibrations for bridge[J]. Journal of Traffic and Transportation Engineering, 2014, 14(3): 34-42.(in Chinese)
[9] LIU M F, CHANG T P, ZENG D Y.The interactive vibration behavior in a suspension bridge system under moving vehicle loads and vertical seismic excitations[J]. Applied Mathematical Modelling, 2011, 35(1): 398-411.
[10] XU Y L, XIA H, YAN Q S. Dynamic response of suspension bridge to high wind and running train[J]. Journal of Bridge Engineering, 2003, 8(1): 46-55.
[11] CHEN Z W, XU Y L, LI Q, et al. Dynamic stress analysis of long suspension bridges under wind, railway, and highway loadings[J]. Journal of Bridge Engineering, 2011, 16(3): 383-391.
[12] DIANA G, FIAMMENGHI G. The Messina Strait Bridge: major problems affecting the design[C]∥STEFFEN A. 34th International Symposium on Bridge and Structural Engineering: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas. Zurich: International Association for Bridge and Structural Engineering, 2010: 1-24.
[13] ANDERSEN P K, ANDERSEN J E, BORDONARA G, et al. Runability analysis for the planned Messina Strait Bridge[C]∥ROECK G D, DEGRANDE G, LOMBAERT G, et al. Proceedings of the 8th International Conference on Structural Dynamics. München: European Association of Structural Dynamics, 2011: 1503-1509.
[14] KWON S D, LEE J S, MOON J W, et al. Dynamic interaction analysis of urban transit maglev vehicle and guideway suspension bridge subjected to gusty wind[J]. Engineering Structures, 2008, 30(12): 3445-3456.
[15] 刘清江.公轨两用悬索桥风-车-桥耦合振动研究[J].武汉理工大学学报,2014,36(3):107-113.LIU Qing-jiang. Coupled vibration research of wind-vehicle-bridge of light rail-cum-road suspension bridges[J]. Journal of Wuhan University of Technology, 2014, 36(3): 107-113.(in Chinese)
[16] 李永乐,董世赋,臧 瑜,等.大跨度公轨两用悬索桥风-车-桥耦合振动及抗风行车准则研究[J].工程力学,2012,29(12):114-120.LI Yong-le, DONG Shi-fu, ZANG Yu, et al. Coupling vibration of wind-vehicle-bridge system for long-span road-rail suspension bridge and resistant-wind criterion of running train[J]. Engineering Mechanics, 2012, 29(12): 114-120.(in Chinese)
[17] LI Yong-le, XIANG Huo-yue, WANG Bin, et al. Dynamic analysis of wind-vehicle-bridge coupling system during the meeting of two trains[J]. Advances in Structural Engineering, 2013, 16(10): 1663-1670.
[18] 张 敏,张 楠,夏 禾.大跨度铁路悬索桥风-车-桥耦合动力分析[J].中国铁道科学,2013,34(4):14-21.ZHANG Min, ZHANG Nan, XIA He. Analysis on wind-vehicle-bridge dynamic interaction for long-span railway suspension bridge[J]. China Railway Science, 2013, 34(4): 14-21.(in Chinese)
[19] LI Yong-le, QIANG Shi-zhong, LIAO Hai-li, et al. Dynamics of wind-rail vehicle-bridge systems[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2005, 93(6): 483-507.
[20] 孟 莎,高芒芒.武汉天兴洲公铁两用长江大桥动力计算分析[J].桥梁建设,2008(1):1-3.MENG Sha, GAO Mang-mang. Analysis of dynamic force calculation of Wuhan Tianxingzhou Changjiang Rail-Cum-Road Bridge[J]. Bridge Construction, 2008(1): 1-3.(in Chinese)
[21] 李永乐,朱佳琪,赵 凯,等.上海长江大桥风-轨道车辆-桥耦合振动及抗风行车准则研究[J].土木工程学报,2012,45(9):108-114.LI Yong-le, ZHU Jia-qi, ZHAO Kai, et al. Coupled vibration of wind-rail vehicle-bridge system for Shanghai Yangtze River Bridge and the wind-resistant criterion of running trains[J]. China Civil Engineering Journal, 2012, 45(9): 108-114.(in Chinese)
[22] 李永乐,廖海黎,强士中.车桥系统气动特性的节段模型风洞试验研究[J].铁道学报,2004,26(3):71-75.LI Yong-le, LIAO Hai-li, QIANG Shi-zhong. Study on aerodynamic characteristics of the vehicle-bridge system by the section model wind tunnel test[J]. Journal of the China Railway Society, 2004, 26(3): 71-75.(in Chinese)

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Last Update: 1900-01-01