Wind and Structures

  • 제23권6호
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  • Pages.485-503
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  • 2016
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Nonlinear aerostatic stability analysis of Hutong cable-stayed rail-cum-road bridge

  • Xu, Man (School of Civil Engineering, Beijing Jiaotong University) ;
  • Guo, Weiwei (School of Civil Engineering, Beijing Jiaotong University) ;
  • Xia, He (School of Civil Engineering, Beijing Jiaotong University) ;
  • Li, Kebing (School of Civil Engineering, Beijing Jiaotong University)
  • 투고 : 2016.03.21
  • 심사 : 2016.09.12
  • 발행 : 2016.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

To investigate the nonlinear aerostatic stability of the Hutong cable-stayed rail-cum-road bridge with ultra-kilometer main span, a FEM bridge model is established. The tri-component wind loads and geometric nonlinearity are taken into consideration and discussed for the influence of nonlinear parameters and factors on bridge resistant capacity of aerostatic instability. The results show that the effect of initial wind attack-angle is significant for the aerostatic stability analysis of the bridge. The geometric nonlinearities of the bridge are of considerable importance in the analysis, especially the effect of cable sag. The instable mechanism of the Hutong Bridge with a steel truss girder is the spatial combination of vertical bending and torsion with large lateral bending displacement. The design wind velocity is much lower than the static instability wind velocity, and the structural aerostatic resistance capacity can meet the requirement.

키워드

과제정보

연구 과제 주관 기관 : National Natural Science Foundations

참고문헌

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피인용 문헌

  1. Numerical Study on Aerostatic Instability Modes of the Double-Main-Span Suspension Bridge vol.2018, 2018, https://doi.org/10.1155/2018/7458529
  2. Non-uniform wind environment in mountainous terrain and aerostatic stability of a bridge vol.30, pp.6, 2016, https://doi.org/10.12989/was.2020.30.6.649
  3. Study on the Effects of Pedestrians on the Aerostatic Response of a Long-Span Pedestrian Suspension Bridge vol.25, pp.10, 2016, https://doi.org/10.1007/s12205-021-2127-x