Interaction and multiscale mechanics

  • 제2권3호
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  • Pages.263-276
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  • 2009
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  • 1976-0426(pISSN)
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  • 2092-6200(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

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Vehicle/bridge interactions of a rail suspension bridge considering support movements

  • Yau, J.D. (Department of Architecture, Tamkang University)
  • 투고 : 2009.04.02
  • 심사 : 2009.05.29
  • 발행 : 2009.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

This paper is intended to investigate interaction response of a train running over a suspension bridge undergoing support settlements. The suspension bridge is modeled as a single-span suspended beam with hinged ends and the train as successive moving oscillators with identical properties. To conduct this dynamic problem with non-homogeneous boundary conditions, this study first divides the total response of the suspended beam into two parts: the static and dynamic responses. Then, the coupled equations of motion for the suspended beam carrying multiple moving oscillators are transformed into a set of nonlinearly coupled generalized equations by Galerkin's method, and solved using the Newmark method with an incremental-iterative procedure including the three phases: predictor, corrector, and equilibrium-checking. Numerical investigations demonstrate that the present iterative technique is available in dealing with the dynamic interaction problem of vehicle/bridge coupling system and that the differential movements of bridge supports will significantly affect the dynamic response of the running vehicles but insignificant influence on the bridge response.

키워드

과제정보

연구 과제 주관 기관 : National Science Council

참고문헌

  1. Chatterjee, P.K., Datta, T.K. and Surana, C.S. (1993), "Vibration of suspension bridges under vehicular movements", J. Struct. Eng-ASCE, 120(3), 681-703.
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  9. Yang, Y.B., Hung H.H. and Hsu L.C. (2007), "Ground vibrations due to underground trains considering soil-tunnel interaction", Interact. Multi. Mech., 1(1), 157-175.
  10. Yang, Y.B., Yau, J.D. and Hsu, L.C. (1997), "Vibration of simple beams due to trains moving at high speeds", Eng. Struct., 19, 936-944. https://doi.org/10.1016/S0141-0296(97)00001-1
  11. Yang, Y.B., Yau, J.D. and Wu, Y.S. (2004), Vehicle-Bridge Interaction Dynamics, World Scientific, Singapore.
  12. Yau, J.D. (2006a), "Vibration of parabolic tied-arch beams due to moving loads", Int. J. Struct. Stab. Dy., 6, 193-214. https://doi.org/10.1142/S0219455406001915
  13. Yau, J.D. (2006b), "Vibration of arch bridges due to moving loads and vertical ground motions", J. Chin. Inst. Eng., 29, 1017-1027. https://doi.org/10.1080/02533839.2006.9671201
  14. Yau, J.D. (2007), "Train-induced vibration control of simple beams using string-type tuned mass dampers", J. Mech., 23, 329-340. https://doi.org/10.1017/S1727719100001386
  15. Yau, J.D. (2009a), "Response of a train moving on multi-span railway bridges undergoing ground settlement", Eng. Struct. 31, 2115-2122. https://doi.org/10.1016/j.engstruct.2009.03.019
  16. Yau, J.D. (2009b), "Dynamic response analysis of suspended beams subjected to moving vehicles and multiple support excitations", J. Sound Vib. 325, 907-922. https://doi.org/10.1016/j.jsv.2009.04.013
  17. Yau, J.D. and Fryba, L. (2007), "Response of suspended beams due to moving loads and vertical seismic ground excitations", Eng. Struct., 29, 3255-3262. https://doi.org/10.1016/j.engstruct.2007.10.001
  18. Yau, J.D. and Yang, Y.B. (2006), "Vertical accelerations of simple beams due to successive loads traveling at resonant speeds", J. Sound Vib., 289, 210-228. https://doi.org/10.1016/j.jsv.2005.02.037
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