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Journal of Zhejiang University-SCIENCE A

, Volume 8, Issue 5, pp 693–698 | Cite as

Aerodynamic stability of cable-supported bridges using CFRP cables

  • Zhang Xin-jun 
  • Ying Lei-dong 
Article

Abstract

To gain understanding of the applicability of carbon fiber reinforced polymer (CFRP) cable in cable-supported bridges, based on the Runyang Bridge and Jinsha Bridge, a suspension bridge using CFRP cables and a cable-stayed bridge using CFRP stay cables are designed, in which the cable’s cross-sectional area is determined by the principle of equivalent axial stiffness. Numerical investigations on the aerodynamic stability of the two bridges are conducted by 3D nonlinear aerodynamic stability analysis. The results showed that as CFRP cables are used in cable-supported bridges, for suspension bridge, its aerodynamic stability is superior to that of the case using steel cables due to the great increase of the torsional frequency; for cable-stayed bridge, its aerodynamic stability is basically the same as that of the case using steel stay cables. Therefore as far as the wind stability is considered, the use of CFRP cables in cable-supported bridges is feasible, and the cable’s cross-sectional area should be determined by the principle of equivalent axial stiffness.

Key words

Cable-supported bridges Carbon fiber reinforced polymer (CFRP) cable Aerodynamic stability 

CLC number

U448.25 

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Zhang Xin-jun 
    • 1
  • Ying Lei-dong 
    • 1
  1. 1.College of Civil Engineering and ArchitectureZhejiang University of TechnologyHangzhouChina

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