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Wind and Structures
  Volume 11, Number 3, May 2008 , pages 179-192

The effect of Reynolds numbers on the steady state aerodynamic force coefficients of the Stonecutters Bridge deck section
M. C. H. Hui, Z. Y. Zhou, A. R. Chen and H. F. Xiang

    In a wind tunnel experiment employing a reduced scale model, Reynolds number (Re) can hardly be respected. Its effects on the aerodynamics of closed-box bridge decks have been the subject of research in recent years. Stonecutters Bridge in Hong Kong is a cable-stayed bridge having an unprecedented central span of 1018m. The issue of Re sensitivity was raised early in the design phase of the deck of Stonecutters Bridge. The objective of this study is to summarise the results of various wind tunnel experiments in order to demonstrate the effect of Re on the steady state aerodynamic force coefficients. The results may provide an insight on the choice of scale for section model experiments in bridge design projects. Computational Fluid Dynamics (CFD) analysis of forces on bridge deck section was also carried out to see how CFD results are compared with experimental results.
Key Words
    Stonecutters Bridge; Reynolds number; aerodynamic force coefficients; CFD.
M. C. H. Hui; Major Works Project Management Office, Highways Department, 6/F, Ho Man Tin Government
Offices, 88 Chung Hau Street, Kowloon, Hong Kong, China
Z. Y. Zhou, A. R. Chen and H. F. Xiang; State Key Laboratory for Disaster Reduction in Civil Engineering and Department of Bridge Engineering, Tongji University, Shanghai 200092, China

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