Vehicle-bridge coupled vibrations in different types of cable stayed bridges

Abstract

Numerical analyses of the coupled vibrations of vehicle-bridge system and the effects of different types of cable stayed bridges on the coupled vibration responses have been presented in this paper using ANSYS. The bridge model and vehicle model were independently built which have no internal relationship in the ANSYS. The vehicle-bridge coupled vibration relationship was obtained by using the APDL program which subsequently imposed on the vehicle and bridge models during the numerical analysis. The proposed model was validated through a field measurements and literature data. The judging method, possibility, and criterion of the vehicle-bridge resonance (coupled vibrations) of cable stayed bridges (both the floating system and half floating system) under traffic flows were presented. The results indicated that the interval time between vehicles is the main influence factor on the resonance excitation frequency under the condition of equally spaced traffic flows. Compared to other types of cable stayed bridges, the floating bridge system has relatively high possibility to cause vehicle-bridge resonance.

Keywords

vehicle-bridge coupled vibration / cable stayed bridge / resonances of vehicle-bridge system

References

[1] Michaltsos G, Sophianopoulos D, Kounadis A N. The effect of moving mass and other parameters on the dynamics response of simply supported beam. Journal of Sound and Vibration, 1996, 191(3): 357–362

[2] Green M F, Cebon D. Dynamic response of highway bridges to heavy vehicle loads: theory and experimental validation. Journal of Sound and Vibration, 1994, 170(1): 51–78

[3] Shen H, Xiao X. Numberical method for vehicle-bridge coupled vibrations. Journal of Southwest Jiao Tong University, 2003, 38(6): 658–662

[4] Wang Y, Xu S. Study of dynamic response of highway-bridge with vehicles. China journal of highway and transport, 2000, 13(4): 38–41.

[5] Zibdeh H S. Stochastic vibration of an elastic beam due to random moving loads and deterministic axial forces. Engineering Structures, 1995, 17(7): 530–535

[6] Foda M A, Abduljabbar Z. A dynamic green function formulation for the response of a beam structure to a moving mass. Journal of Sound and Vibration, 1998, 210(3): 295–306

[7] Jiang P, He S, Wang L. Coupled vibration of vehicle-bridge with local depression of continuous beam. Journal of Wuhan University of Technology, 2011, 33(2): 82–95

[8] Wang L B, Kang X, Jiang P W. Analysis on arithmetic and application of rigidity distribution for simply supported structure. In: Proceedings of the 13th International Conference on Fracture. ICF 2013, 6, 4908–4916

[9] Wang L, Jiang P, Kang X, Ma Y, Zhou Y. Judging method for coupled vibration resonance of vehicle-bridge of continuous rigid frame bridges. Zhongnan Daxue Xuebao. Journal of Central South University, 2014, 45(11): 4050–4058

[10] Kawatani M, Kim C W. Computer simulation for dynamic wheel loads of heavy vehicles. Structural Engineering and Mechanics, 2001, 12(4): 409–428

[11] Wang L, Kang X, Jiang P. Vibration analysis of multi-span continuous bridges subjected to complex traffic loading conditions and vehicle dynamic interactions. KSCE Journal of Civil Engineering, 2015,

[12] Tan G H, Bmmeld G H, Thambimtnam D P. Development of an analytical model for treating bridge-vehicle interaction. Engineering Structures, 1998, 20(1/2): 250–260

[13] Lee H P. Dynamic response of beam with a moving mass. Journal of Sound and Vibration, 1996, 191(2): 289–294

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