Browse > Article
http://dx.doi.org/10.12989/was.2017.24.5.405

Dynamic analysis of long-span cable-stayed bridges under wind and traffic using aerodynamic coefficients considering aerodynamic interference  

Han, Wanshui (Department of Bridge Engineering, Chang'an University)
Liu, Huanju (Department of Bridge Engineering, Chang'an University)
Wu, Jun (Department of Bridge Engineering, Chang'an University)
Yuan, Yangguang (Department of Bridge Engineering, Chang'an University)
Chen, Airong (Department of Bridge Engineering, Tongji University)
Publication Information
Wind and Structures / v.24, no.5, 2017 , pp. 405-430 More about this Journal
Abstract
The aerodynamic characteristics of vehicles are critical to assess vehicle safety and passenger comfort for vehicles running on long span bridges in a windy environment. However, in previous wind-vehicle-bridge (WVB) system analysis, the aerodynamic interference between the vehicle and the bridge was seldom considered, which will result in changing aerodynamic coefficients. In this study, the aerodynamic coefficients of a high-sided truck on the ground (ground case) and a typical bridge deck (bridge deck case) are determined in a wind tunnel. The effects of existent structures including the bridge deck and bridge accessories on the high-sided vehicle's aerodynamic characteristics are investigated. A three-dimensional analytical framework of a fully coupled WVB system is then established based on the finite element method. By inputting the aerodynamic coefficients of both cases into the WVB system separately, the vehicle safety and passenger comfort are assessed, and the critical accidental wind speed for the truck on the bridge in a windy environment is derived. The differences in the bridge response between the windward case and the leeward case are also compared. The results show that the bridge deck and the accessories play a positive role in ensuring vehicle safety and improving passenger comfort, and the influence of aerodynamic interference on the response of the bridge is weak.
Keywords
wind-vehicle-bridge system; aerodynamic interference; vehicle stability; critical wind speed; bridge response;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Baker, C.J. (1991), "Ground vehicles in high cross winds part 1: steady aerodynamic forces", J. Fluid. Struct., 5(1), 69-90.   DOI
2 Baker, C.J. (1994), "The quantification of accident risk for road vehicles in cross winds." J. Wind Eng. Ind. Aerod., 52, 93-107.   DOI
3 Baker, C.J. and Reynolds, S. (1992), "Wind induced accidents of road vehicles", Accid. Anal. Prev., 24(6), 559-575.   DOI
4 Bettle, J., Holloway, A.G.L. and Venart, J.E.S. (2003), "A computational study of the aerodynamic forces acting on a tractor-trailer vehicle on a bridge in cross-wind", J. Wind Eng. Ind. Aerod., 91(5), 573-592.   DOI
5 Cai, C.S. and Chen, S.R. (2004), "Framework of vehicle-bridge-wind dynamic analysis." J. Wind Eng. Ind. Aerod., 92, 579-607.   DOI
6 Chen, S.R. and Cai, C.S. (2004), "Accident assessment of vehicles on long-span bridges in windy environments", J. Wind Eng. Ind. Aerod., 92(12), 991-1024.   DOI
7 Cheung, M.S. and Chan, Y.B. (2010), "Operational requirements for long span bridges under strong wind events", J. Bridge Eng., 15(2), 131-143.   DOI
8 Davenport, A.G. (1968), "The dependence of wind load upon meteorological parameters", Proceedings of the International Research Seminar on Wind Effects on Building and Structures, University of Toronto Press, Toronto, 19-82.
9 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.   DOI
10 Han, W.S. (2006), Three-dimensional coupling vibration of wind-vehicle-bridge system, Ph.D. Dissertation, Tongji University, Shanghai, (in Chinese).
11 Han, W.S., Ma, L., Cai, C.S., Chen, S.R. and Wu, J. (2015a), "Nonlinear dynamic performance simulation of super-Long-Span cable-stayed bridge under traffic and wind", Wind Struct., 20(2), 249-274.   DOI
12 Han, W.S., Wu, J., Cai, C.S. and Chen, S.R. (2015b), "Characteristics and dynamic impact of overloaded extra heavy trucks on typical highway bridges", J. Bridge Eng., 20(2), 315-331.
13 Han, Y., Cai, C.S., Zhang, J. R., Chen, S.R. and He, X.H. (2014), "Effects of aerodynamic parameters on the dynamic responses of road vehicles and bridges under cross winds", J. Wind Eng. Ind. Aerod., 134, 78-95.   DOI
14 Han, Y., Chen, H., Shen, L. and Cai, C.S. (2015), "Effects of aerodynamic parameters on coupled dynamic responses of wind-vehicle-bridge system", Chin. J. Highw. Transport, 28(9), 57-66,126.
15 Li, Y., Lu, D.G. and Sheng, H.F. (2012), "Fatigue reliability analysis on cable of cable-stayed bridge under random vehicle load and wind load", Chin. J. Highw. Transport, 25(2), 60-67.
16 Han, Y., Hu, J.X., Cai, C.S., Chen, Z.Q. and Li, C.G. (2013), "Experimental and numerical studies of aerodynamic forces on vehicles and bridges", Wind Struct., 17(2), 163-184.   DOI
17 International Organization for Standardization (ISO). (1995), "Mechanical Vibration-Road Surface Profiles-Reporting of measured Data", ISO 8068:(E), ISO, Geneva.
18 Kaimal, J.C., Wyngaard, J.C., Izumi, I. and Cote, O.R. (1972), "Spectral characteristics of surface-layer tursbulence", Q. J. Roy. Meteorol. Soc., 98(417), 563-589.   DOI
19 Li, Y.L., Zhao, K., Chen, N. and Liao, H.L. (2012), "Wind-vehicle-bridge system coupling vibration and traffic safety analysis", Eng. Mech., 29(5), 206-212.
20 Lumley, J.L. and Panofsky, H.A. (1964), The Structure of Atmospheric Turbulence, Wiley, New York.
21 Ma, L., Han, W.S., Ji, B.H. and Liu, J.X. (2015), "Probability of overturning for vehicles moving on a bridge deck in a wind environment considering stochastic process characteristics of excitations", J. Perform. Constr. Fac., 29(1), 249-274.
22 Society of Automotive Engineers (SAE). (1993), "Aerodynamic testing of road vehicles: Testing methods and procedures." SAE Standards, Aerodynamics, Product Code, J2084-199301.
23 Suzuki, M., Tanemoto, K. and Maeda, T. (2003), "Aerodynamic characteristics of train/vehicles under cross winds", J. Wind Eng. Ind. Aerod., 91(1-2), 209-218.   DOI
24 Wang, B., Xu, Y.L. and Li, Y.L. (2015), "Dynamic analysis of wind-vehicle-bridge systems using mutually-affected aerodynamic parameters", Wind Struct., 20(2), 191-211.   DOI
25 Xu, Y.L. and Guo, W.H. (2003), "Dynamic analysis of coupled highway vehicle and cable-stayed bridge systems under turbulent wind", Eng. Struct., 25(4), 473-486.   DOI
26 Wang, T., Han, W.S., Yang, F. and Kong, W. (2014), "Wind-vehicle-bridge coupled vibration analysis based on random traffic flow simulation." J. Traffic Transp. Eng. ( Engl. Ed.), 1(4), 293-308.   DOI
27 Wu, Y.Z. (2008), Research on Automotive Aerodynamic Characteristics during Overtaking, Ph.D. Dissertation, Ji Lin University, Changchun, (in Chinese).
28 Xu, W.N. and Shi, R.G. (2002), "Design Wind Speed Calculation and Gradient Wind Speed Observation of Hangzhou Gulf Bridge", Ning bo Weather Center, Ningbo, China.
29 Zhu, L.D., Li, L., Xu, Y.L. and Zhu, Q. (2012), "Wind tunnel investigations of aerodynamic coefficients of road vehicles on bridge deck", J. Fluids Struct., 30(2), 35-50.   DOI