Structural Engineering and Mechanics

  • 제71권1호
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  • Pages.13-22
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  • 2019
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Static and dynamic responses of a tied-arch railway bridge under train load

  • Gou, Hongye (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Yang, Biao (Department of Bridge Engineering, School of Civil Engineering, Southwest Jiaotong University) ;
  • Guo, Wei (School of Civil Engineering, Central South University) ;
  • Bao, Yi (Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology)
  • 투고 : 2018.11.05
  • 심사 : 2019.03.20
  • 발행 : 2019.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this paper, the static and dynamic responses of a tied-arch railway bridge under train load were studied through field tests. The deflection and stresses of the bridge were measured in different static loading scenarios. The dynamic load test of the bridge was carried out under the excitation of running train at different speeds. The dynamic properties of the bridge were investigated in terms of the free vibration characteristics, dynamic coefficients, accelerations, displacements and derailment coefficients. The results indicate that the tie of the measuring point has a significant effect on the vertical movement of the test section. The dynamic responses of arch bridge are insensitive to the number of trains. The derailment coefficients of locomotive and carriage increase with the train speed and symmetrically distributed double-line loads reduce the train derailment probability.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundation of China, Ministry of Science and Technology of China

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  1. Dynamic Characteristics of a Double-Pylon Cable-Stayed Bridge with Steel Truss Girder and Single-Cable Plane vol.2021, 2019, https://doi.org/10.1155/2021/9565730
  2. A model for investigating vehicle-bridge interaction under high moving speed vol.77, pp.5, 2019, https://doi.org/10.12989/sem.2021.77.5.627
  3. In-situ dynamic loading test of a hybrid continuous arch bridge vol.77, pp.6, 2019, https://doi.org/10.12989/sem.2021.77.6.809