Probability of Overturning for Vehicles Moving on a Bridge Deck in a Wind Environment Considering Stochastic Process Characteristics of Excitations
Publication: Journal of Performance of Constructed Facilities
Volume 29, Issue 1
Abstract
Based on a wind-vehicle-bridge analysis system and quasi-steady pneumatic force coefficient data obtained from wind tunnel tests, the problem of moving vehicles on a cable-stayed bridge deck overturning in a strong wind environment is studied, with the probability evaluation as the emphasis. It is put forward that the evaluation of a vehicle’s overturning is a probability problem that a stochastic process overpasses a threshold level, and the influence of the statistic process characteristics of excitations on driving safety is profoundly discussed in the paper. The analysis shows that the higher the driving speed, the more obvious the effect of statistic process characteristics tends to be. Moreover, the influence degree of stochastic process characteristics is relevant to the wind velocity range of the dynamic reliability curve and the range of the probability distribution for the mean wind velocity. When the range of the former is broad enough and overlaps with the range of the latter, the influence of stochastic process characteristics should be considered. Wind barriers can promote a safe driving velocity from 80 to under normal weather conditions. Under extreme weather conditions, traffic control measures should be implemented to maintain the bridge’s traffic service. Wind barriers together with the speed limitation () can ensure that a truck passes the bridge safely during storm conditions (, Beaufort Scale 10). When the natural wind is a violent storm (, Beaufort Scale 11), the speed limitation should be .
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writers are grateful for the financial support from the National Science Foundation of China (Nos. 51108154 and 51278064).
References
Baker, C. J. (1987). “Measurements to control vehicle movement at exposed sites during windy periods.” J. Wind Eng. Ind. Aerodyn., 25(2), 151–161.
Chen, A. R., Wang, D. L., and Pang, J. B. (2006). “Study of wind-related riding safety on long sea-crossing bridge.” J. Bridge Constr. China, 2006(3), 1–4 (in Chinese).
Chen, S. R., and Cai, C. S. (2004). “Accident assessment of vehicles on long-span bridges in windy environment.” J. Wind Eng. Ind. Aerodyn., 92(12), 991–1024.
Coleman, J. J. (1959). “Reliability of aircraft structures in resisting chance failure.” Oper. Res., 7(5), 639–645.
Crandall, S. H. (1970). “First-cross probability of the linear oscillator.” J. Sound Vib., 12(3), 285–299.
Deodatis, G. (1996). “Simulation of ergodic multivariate stochastic processes.” J. Eng. Mech., 778–787.
Dodds, C. J., and Robson, J. D. (1973). “The description of road surface roughness.” J. Sound Vib., 31(2), 175–183.
Guo, W. H., and Xu, Y. L. (2006). “Safety analysis of moving road vehicles on long bridge under crosswind.” J. Eng. Mech., 438–446.
Huang, N. E., et al. (1998). “The empirical mode decomposition and the Hilbert spectral for nonlinear and nonstationary time series analysis.” Proc. R. Soc. London Ser. A, 454(1971), 903–995.
Lennox, W. C., and Fraser, D. A. (1974). “On the first-passage distribution for the envelop of a nonstationary narrow-band stochastic process.” J. Appl. Mech., 41(3), 793–797.
Ma, L., Liu, J. X., Wan, S. H., and Ji, B. H. (2011). “Research on the fitting effect of general extreme value distribution based on wind speed data measured actually at the Hangzhou Bay Bridge site.” Condition, Reliability, and Resilience of Tunnels and Bridges, GeoHunan 2011, ASCE, 102–128.
Society of Automotive Engineers (SAE). (1993). “Aerodynamic testing of road vehicles: Testing methods and procedures.” SAE Standards, Aerodynamics, Product Code, J2084–199301.
Vanmarcke, E. H. (1975). “On the distribution of the first-passage time for normal stationary random processes.” J. Appl. Mech., 42(1), 215–220.
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, Vol. 1, Texas Tech Univ., Lubbock, TX, 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.
Information & Authors
Information
Published In
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 18, 2012
Accepted: May 30, 2013
Published online: Jun 3, 2013
Discussion open until: Nov 25, 2014
Published in print: Feb 1, 2015
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.