Wind and Structures

  • 제6권1호
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  • Pages.53-70
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  • 2003
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Measurement of aerodynamic coefficients of tower components of Tsing Ma Bridge under yaw winds

  • Zhu, L.D. (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University) ;
  • Xu, Y.L. (Department of Civil and Structural Engineering, The Hong Kong Polytechnic University) ;
  • Zhang, F. (Department of Bridge Engineering, Tongji University) ;
  • Xiang, H.F. (Department of Bridge Engineering, Tongji University)
  • 투고 : 2002.02.24
  • 심사 : 2002.12.02
  • 발행 : 2003.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Tsing Ma Bridge in Hong Kong is the longest suspension bridge in the world carrying both highway and railway. It has two H-shape concrete towers, each of which is composed of two reinforced concrete legs and four deep transverse prestressed concrete beams. A series of wind tunnel tests have been performed to measure the aerodynamic coefficients of the tower legs and transverse beams in various arrangements. A 1:100 scaled 3D rigid model of the full bridge tower assembled from various tower components has been constructed for different test cases. The aerodynamic coefficients of the lower and upper segments of the windward and leeward tower legs and those of the transverse beams at different levels, with and without the dummy bridge deck model, were measured as a function of yaw wind angle. The effects of wind interference among the tower components and the influence of the bridge deck on the tower aerodynamic coefficients were also investigated. The results achieved can be used as the pertinent data for the comparison of the computed and field-measured fully coupled buffeting responses of the entire bridge under yaw winds.

키워드

참고문헌

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피인용 문헌

  1. Buffeting response of long-span cable-supported bridges under skew winds. Part 1: theory vol.281, pp.3-5, 2005, https://doi.org/10.1016/j.jsv.2004.01.026
  2. Prediction of extreme wind velocity at the site of the Runyang Suspension Bridge vol.12, pp.8, 2011, https://doi.org/10.1631/jzus.A1000446
  3. Buffeting response of long-span cable-supported bridges under skew winds. Part 2: case study vol.281, pp.3-5, 2005, https://doi.org/10.1016/j.jsv.2004.01.025
  4. Some important aspects of wind-resistant studies on long-span bridges vol.55, pp.12, 2012, https://doi.org/10.1007/s11431-012-5011-6
  5. Aerodynamic admittances of bridge deck sections: Issues and wind field dependence vol.25, pp.3, 2003, https://doi.org/10.12989/was.2017.25.3.283