Wind and Structures

  • 제17권2호
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  • Pages.163-184
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  • 2013
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Experimental and numerical studies of aerodynamic forces on vehicles and bridges

  • Han, Yan (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Hu, Jiexuan (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Cai, C.S. (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Chen, Zhengqing (Wind Engineering Research Center, College of Civil Engineering, Hunan University) ;
  • Li, Chunguang (School of Civil Engineering and Architecture, Changsha University of Science & Technology)
  • 투고 : 2012.07.25
  • 심사 : 2012.10.08
  • 발행 : 2013.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

An accurate identification of the aerodynamic characteristics of vehicles and the bridge is the premise for the coupled vibration analysis of a wind-vehicle-bridge system. At present, the interaction of aerodynamic forces between the road vehicles and bridge is ignored in most previous studies. In the present study, an experimental setup was developed to measure the aerodynamic characteristics of vehicles and the bridge for different cases in a wind tunnel considering the aerodynamic interference. The influence of the wind turbulence, the wind speed, the vehicle interference, and the vehicle position on the aerodynamic coefficients of vehicles, and the influence of vehicles on the static coefficients of the bridge were investigated, based on the experimental results. The variations in the aerodynamic characteristics of vehicles and the bridge were studied and the measured results were validated according to the results of surface pressure measurements on the vehicle and the bridge. The measured results were further validated by comparing the measured results with values derived numerically. The measured results showed that the wind turbulence, the vehicle interference, and the vehicle position significantly affected the aerodynamic coefficients of vehicles. However, the influence of the wind speed on the aerodynamic coefficients of the studied vehicle is small. The static coefficients of the bridge were also significantly influenced by the presence of vehicles.

키워드

참고문헌

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  12. Dynamic analysis of long-span cable-stayed bridges under wind and traffic using aerodynamic coefficients considering aerodynamic interference vol.24, pp.5, 2017, https://doi.org/10.12989/was.2017.24.5.405
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  14. Characteristics of the Wind Environment above Bridge Deck near the Pylon Zone and Wind Barrier Arrangement Criteria vol.10, pp.4, 2013, https://doi.org/10.3390/app10041437
  15. Aerodynamics of High-Sided Vehicles on Truss Girder Considering Sheltering Effect by Wind Tunnel Tests vol.15, pp.2, 2013, https://doi.org/10.7250/bjrbe.2020-15.473
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  18. Experimental Study of Aerodynamic Interference Effects for a Suspended Monorail Vehicle-Bridge System Using a Wireless Acquisition System vol.21, pp.17, 2021, https://doi.org/10.3390/s21175841