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YAN Bin, DAI Gong-lian, DONG Lin-yu. Design parameters of track-bridge interaction on passenger dedicated line cable-stayed bridge[J]. Journal of Traffic and Transportation Engineering, 2012, 12(1): 31-37. doi: 10.19818/j.cnki.1671-1637.2012.01.006
Citation: YAN Bin, DAI Gong-lian, DONG Lin-yu. Design parameters of track-bridge interaction on passenger dedicated line cable-stayed bridge[J]. Journal of Traffic and Transportation Engineering, 2012, 12(1): 31-37. doi: 10.19818/j.cnki.1671-1637.2012.01.006
shu

Design parameters of track-bridge interaction on passenger dedicated line cable-stayed bridge

doi: 10.19818/j.cnki.1671-1637.2012.01.006
  • 1.

    School of Civil Engineering, Central South University, Changsha 410075, Hunan, China

  • 2.

    Yellow River Engineering Consulting Co., Ltd., Zhengzhou 450003, Henan, China

More Information
  • Author Bio:

    YAN Bin(1984-), male, doctoral student, +86-731-85582630, zhixu1984@gmail.com

    DAI Gong-lian(1964-), male, professor, +86-731-85582630, daigong@vip.sina.com

  • Received Date: 2011-08-28
  • Publish Date: 2012-02-25
    Abstract
  • Track-bridge interaction was simulated by using nonlinear spring, and the simulation method was proved based on the experimental results of related documents.Taking a U-shape section and single-tower cable-stayed bridge on Shanghai-Kunming Passenger Dedicated Line as an example, the spatial finite element model of tower-cable-rail-beam-pier was established by using large general-purpose finite element software ANSYS.The transfer law of rail longitudinal force on cable-stayed bridge was analyzed, and the impacts of design parameters on rail longitudinal force were studied, the design parameters included longitudinal resistance model, cable-stayed bridge structure system, temperature load, wind load and so on.Analysis result shows that rail longitudinal resistance can be simplified in accordance with ideal elastic-plastic model.Compared with floating system, rail longitudinal force reduces by about 30% through tower and beam consolidation.When calculating rail expansion force, load can be applied according to beam increasing-temperature 15 ℃ and cable increasing-temperature 40 ℃.In windy areas, rail longitudinal force on cable-stayed bridge caused by wind can be larger than 60 kN.

     

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