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XU Qing-yuan, WANG Ping, QU Xiao-hui. Computation model of rupture force between continuously welded rail and high-speed railway bridge[J]. Journal of Traffic and Transportation Engineering, 2006, 6(3): 23-26.
Citation: XU Qing-yuan, WANG Ping, QU Xiao-hui. Computation model of rupture force between continuously welded rail and high-speed railway bridge[J]. Journal of Traffic and Transportation Engineering, 2006, 6(3): 23-26.
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Computation model of rupture force between continuously welded rail and high-speed railway bridge

  • 1.

    School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, Sichuan, China

  • 2.

    No.3 Railway Survey and Design Institute, Tianjin 300142, China

  • 3.

    chool of CiVil and Architectural Engineering, Central South University, Changsha 410075, Hunan, China

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  • Author Bio:

    Xu Qing-yuan(1972-), male, PhD, associate professor, 86-22-26178736, xuqingyuan@cr-tsdi.com

  • Received Date: 2005-12-07
  • Publish Date: 2006-09-25
    Abstract
  • Based on the study achievements of some predecessors, bridge, pier and abutment were simulated by solid element, rail and sleeper were simulated by space beam element, the links of rail, sleeper, bridge, pier and abutment were simulated by spring element, a three-dimensional finite element spatial mechanics model for calculating the rupture force between continuously welded rail and high-speed railway bridge was established.Taking a 10-span-32 m simply supported double-track box girder beam bridge in Qin-Shen passenger special line as an example, the influence factors of rail gap were analyzed.The result shows that bridge temperature variation amplitude, bearing frictional force and rail gap position have little influence on rail gap, fastener longitudinal resistance, rail temperature variation amplitude, rail type and pier longitudinal stiffness have remarkable influence on rail gap, mechanics models also have some influence on rail gap, the computation result of new three-dimensional spatial model is lesser compared with traditional plane model.

     

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