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KSCE Journal of Civil Engineering

, Volume 15, Issue 5, pp 849–857 | Cite as

Wind-induced vibration of long-span cable-stayed bridges during construction considering an initial static equilibrium state

  • Sang-Youl Lee
  • Sung-Soon Yhim
Article
  • 554 Downloads

Abstract

This study deals with the dynamic behavior of long-span cable-stayed bridges under various wind effects. The novelty of this study is the consideration of an initial static equilibrium state subjected only to the self-weight of the bridge at various construction stages under complex buffeting winds. In particular, the dynamic response of a bridge prior to closure of the superstructure at the main and side spans are studied using a newly developed finite element program. The numerical results obtained for an existing three-span cable-stayed bridge model are compared to data from laboratory scaled-model testing. The parametric studies are focused on the various effects of wind speed on the dynamic behavior of cable-stayed bridges when the initial static equilibrium states at different construction stages are considered.

Keywords

cable-stayed bridge buffeting winds initial static equilibrium state finite element method dynamic response construction sequences laboratory scaled-model testing 

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Copyright information

© Korean Society of Civil Engineers and Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Dept. of Civil EngineeringAndong National UniversityAndongKorea
  2. 2.Dept. of Civil EngineeringUniversity of SeoulSeoulKorea

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