• ISSN 0258-2724
  • CN 51-1277/U
  • EI Compendex
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Volume 21 Issue 6
Dec.  2008
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Article Contents
XIAN Rong, LIAO Haili, LI Mingshui. Calculation of Spanwise Vortex-Induced Vibration Responses of Long-Span Bridge Girder[J]. Journal of Southwest Jiaotong University, 2008, 21(6): 740-746.
Citation: XIAN Rong, LIAO Haili, LI Mingshui. Calculation of Spanwise Vortex-Induced Vibration Responses of Long-Span Bridge Girder[J]. Journal of Southwest Jiaotong University, 2008, 21(6): 740-746.

Calculation of Spanwise Vortex-Induced Vibration Responses of Long-Span Bridge Girder

  • Received Date: 28 Apr 2008
  • Publish Date: 25 Dec 2008
  • To provide accurate reference data to vibration restraint,based on the one-dimensional experienced linear VIV(vortex-induced vibration) model the vertical and torsional VIV spanwise responses of a bridge girder were deduced by synthetically considering factors such as mode shape,damping ratio and vortex-induced force correlation.A method was proposed to describe the VIV spanwise responses of a long-span bridge girder.A method to identify the aerodynamic parameters in the experienced linear VIV model through a section model test was discussed.By taking a long-span cable-stayed bridge as an example,the aerodynamic parameters were identified.In addition,the vortex-induced force correlation and the vertical and torsional VIV responses were calculated under different wind attack angles.The research result shows that the response amplitude of VIV influenced by the correlation decreases drastically with the increase of a spanwise distance.

     

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