Safety Analysis of Moving Road Vehicles on a Long Bridge under Crosswind
Publication: Journal of Engineering Mechanics
Volume 132, Issue 4
Abstract
This paper presents a safety analysis of high-sided road vehicles running on a long span cable-stayed bridge when the road vehicle enters a sharp-edged crosswind gust while the bridge is oscillating under fluctuating winds. Road vehicle accidents, including overturning, excessive sideslip, and exaggerated rotation, are defined first. The mathematical model and the equation of motion of coupled road vehicle–bridge systems under crosswind are then established, which include road surface roughness, vehicle suspension, and the sideslip of the vehicle tire relative to the bridge deck in the lateral direction. A case study using a real long cable-stayed bridge and a high-sided road vehicle is finally conducted, and an extensive computational work is performed to obtain a series of accident vehicle speed against mean crosswind speed, by which the decision on the threshold of mean wind speed above which the bridge should be closed to the road vehicle can be made. The obtained accident vehicle speeds are also compared with those for the same vehicles running on the ground. It is shown that the oscillation of the cable-stayed bridge will lower the accident vehicle speed when wind speed reaches a certain level.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writers wish to acknowledge the financial support from the Research Grants Council of Hong Kong (Project No. PolyU 5043/01E) and the National Natural Science Foundation of China (Project No. NNSFC50208019).
References
Baker, C. J. (1986). “A simplified analysis of various types of wind-induced road vehicle accidents.” J. Wind. Eng. Ind. Aerodyn., 22(1), 69–85.
Baker, C. J. (1987). “Measures to control vehicle movement at exposed sites during windy periods.” J. Wind. Eng. Ind. Aerodyn., 25(2), 151–161.
Cao, Y. H., Xiang, H. F., and Zhou, Y. (2000). “Simulation of stochastic wind velocity field on long-span bridges.” J. Eng. Mech., 126(1), 1–6.
Charuvisit, S., Kimura, K., and Fujino, Y. (2004). “Experimental and semi-analytical studies on the aerodynamic forces on a vehicle passing through the wake of a bridge tower in cross wind.” J. Wind. Eng. Ind. Aerodyn., 92(7), 749–780.
Chen, X. Z., Matsumoto, M., and Kareem, A. (2000). “Time domain flutter and buffeting response analysis of bridges.” J. Eng. Mech., 126(1), 7–16.
Coleman, S. A., and Baker, C. J. (1990). “High-sided road vehicles in cross winds.” J. Wind. Eng. Ind. Aerodyn., 36(1-3), 1383–1392.
Guo, W. H., and Xu, Y. L. (2001). “Fully computerized approach to study cable-stayed bridge-vehicle interaction.” J. Sound Vib., 248(4), 745–761.
Han, D. J., Liu, Q., Su, C., and Luo, N. G. (2000). “Simulation of wind field and calculation of aerodynamic forces for long span bridges.” Proc., Int. Workshop on Res. and Monitoring of Long Span Bridges, Hong Kong, 260–266.
Pritchard, J. R. (1985). “Wind effects on high-sided vehicles.” J. Inst. Highways Transp., 32(4), 22–25.
Shinozuka, M., and Jan, C. M. (1972). “Digital simulation of random processes and its applications.” J. Sound Vib., 25(10), 111–128.
Wang, T. L., and Huang, D. Z. (1992). “Cable-stayed bridge vibration due to road surface roughness.” J. Struct. Eng., 118(5), 1354–1374.
Xu, Y. L., and Guo, W. H. (2003a). “Effects of road surface roughness and vehicle suspension on vehicle accidents due to a sudden crosswind gust.” Proc., 11th ICWE, Texas Tech Univ., Texas, Vol. I, 341–348.
Xu, Y. L., and Guo, W. H. (2003b). “Dynamic analysis of coupled road vehicle and cable-stayed bridge systems under turbulent wind.” Eng. Struct., 25(4), 473–486.
Yang, J. N. (1972). “Simulation of random envelop processes.” J. Sound Vib., 21(1), 73–85.
Information & Authors
Information
Published In
Copyright
© 2006 ASCE.
History
Received: Feb 13, 2004
Accepted: Jul 14, 2005
Published online: Apr 1, 2006
Published in print: Apr 2006
Notes
Note. Associate Editor: Joel P. Conte
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.