Operational Requirements for Long-Span Bridges under Strong Wind Events
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Bridge Engineering
Volume 15, Issue 2
Abstract
In the absence of intensive wind tunnel tests, this study provides an effective and accurate approach to estimate the operational driving speed limit on bridges subjected to different road conditions and wind intensities, through a convenient continuous simulation technique (CSP). A fast and vigorous simulation tool, vehicle performance simulation, is developed to effectively model the performance of vehicles traveling on bridges by considering the interactions between wind, vehicles, and the bridge. The CSP, on the other hand, dramatically reduces the data generation time and makes a reliability analysis of vehicles possible. The application of the proposed method on the Confederation Bridge in Canada is presented as a numerical example. The simulation result overrides the general impression that only high-sided vehicles are sensitive to wind attacks, and this work demonstrates that light-weighted vehicles are also likely to suffer from instability problems on bridges under relatively low wind velocity. In addition, different types of vehicle can undergo different instability mechanisms under the same wind condition and these vehicle instability mechanisms vary with wind velocity.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writers gratefully acknowledge the financial support of the Hong Kong Research Grant Council RGC Grant No. UNSPECIFIED612207 for the project on Operational Requirements for Long Span Bridges under Strong Wind Conditions.
References
Baker, C. J. (1986). “A simplified analysis of various types of wind-induced vehicle accidents.” J. Wind Eng. Ind. Aerodyn., 22, 69–85.
Baker, C. J. (1991). “Ground vehicles in high cross winds: The interaction of aerodynamic forces and the vehicle system.” J. Fluids Struct., 5, 221–241.
Cai, C. S., and Chen, S. R. (2004). “Framework of vehicle-bridge-wind dynamic analysis.” J. Wind Eng. Ind. Aerodyn., 92, 579–607.
Cao, Y., Xiang, H., and Zhou, Y. (2000). “Simulation of stochastic wind velocity field on long-span bridges.” J. Eng. Mech., 126(1), 1–6.
Chen, S. R., and Cai, C. S. (2004). “Accident assessment of vehicles on long-span bridges in windy environments.” J. Wind Eng. Ind. Aerodyn., 92(12), 991–1024.
Cheung, M. S., and Chan, Y. B. (2006). “Vehicle-wind-long span bridge interaction and its effect on speed limit and vehicle stability.” Proc., Joint Int. Conf. on Computing and Decision making in Civil and Building Engineering, ICCCBE, Montreal, Canada.
Cheung, M. S., Tadros, G. S., Brown, T., Dilger, W. H., Ghali, A., and Lau, D. T. (1997). “Field monitoring and research on performance of the Confederation Bridge.” Can. J. Civ. Eng., 24, 951–962.
Guo, W. H., and Xu, Y. L. (2006). “Safety analysis of moving road vehicles on a long bridge under crosswind.” J. Eng. Mech., 132(4), 438–446.
Kaimal, J. C., Wyngaard, J. C., Izumi, Y., and Cote, O. R. (1972). “Spectral characteristics of surface layer turbulence.” Q. J. R. Meteorol. Soc., 98, 536–589.
Liu, C. H. (1994). “Simulation of divers correlative stochastic processes and its applications.” J. Tongji Univ., Shanghai, 22, 61–67.
Naumoski, N., Cheung, M. S., and Foo, S. (2004). “Dynamic performance of the Confederation Bridge due to traffic and wind.” Can. J. Civ. Eng., 31(3), 487–498.
Shinozuka, M., and Deodatis, G. (1996). “Simulation of multi-dimensional Gaussian stochastic fields by spectral representation.” Appl. Mech. Rev., 49(1), 29–53.
Simiu, E., and Scanlan, R. H. (1986). Wind effects on structures, Wiley, New York.
Tadros, G. (1997). “The Confederation Bridge: An overview.” Can. J. Civ. Eng., 24, 850–866.
Wang, T. L. and Huang, D. (1992) “Cable-stayed bridge vibration due to road surface roughness.” J. Struct. Eng., 118(5), 1354–1374.
Xu, Y. L., and Guo, W. H. (2003). “Dynamic analysis of coupled road vehicle and cable-stayed bridge systems under turbulent wind.” Eng. Struct., 25, 473–486.
Xu, Y. L., and Guo, W. H. (2004). “Effects of bridge motion and crosswind on ride comfort of road vehicles.” J. Wind Eng. Ind. Aerodyn., 92, 641–662.
Yang, Y. B., and Lin, B. H. (1995a). “Vehicle-bridge interaction analysis by dynamic condensation method.” J. Struct. Eng., 121(11), 1636–1643.
Yang, Y. B. and Lin, B. H. (1995b). “Impact formulas for vehicles moving over simple and continuous beams.” J. Struct. Eng., 121(11), 1644–1650.
Yang, Y. B., Yau, D. J., and Wu, Y. S. (2004). Vehicle-bridge interaction dynamics: With applications to high-speed railways, World Scientific, Singapore
Information & Authors
Information
Published In
Copyright
© 2010 ASCE.
History
Received: Jul 24, 2008
Accepted: May 13, 2009
Published online: Sep 16, 2009
Published in print: Mar 2010
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.