DOI QR코드

DOI QR Code

Pressure distribution and aerodynamic forces on stationary box bridge sections

  • Ricciardelli, Francesco (Department of Mechanics and Materials, University of Reggio Calabria) ;
  • Hangan, Horia (The Boundary Layer Wind Tunnel Laboratory, The University of Western Ontario)
  • 발행 : 2001.10.25

초록

Simultaneous pressure and force measurements have been conducted on a stationary box deck section model for two configurations (namely without and with New Jersey traffic barriers) at various angles of incidence. The mean and fluctuating aerodynamic coefficients and pressure coefficients were derived, together with their spectra and with the coherence functions between the pressures and the total aerodynamic forces. The mean aerodynamic coefficients derived from force measurements are first compared with those derived from the integration of the pressures on the deck surface. Correlation between forces and local pressures are determined in order to gain insight on the wind excitation mechanism. The influence of the angle of incidence on the pressure distribution and on the fluctuating forces is also analysed. It is evidenced how particular deck section areas are more responsible for the aerodynamic excitation of the deck.

키워드

참고문헌

  1. Davenport, A.G. and King, J.P.C. (1982), "A study of the wind effect for the Sunshine Skyway Bridge, Tampa, Florida, concrete alternate", BLWT-SS24-1982, The Boundary Layer Wind Tunnel Laboratory, The University of Western Ontario, London, Canada.
  2. Hann, F.L. jr., Kareem, A. and Szewczyk, A.A. (2000), "Experimental measurements of spanwise correlation of self-excited forces on a rectangular cross section", Proc. of Fourth Int. Colloquium on Bluff Body Aerodynamic and Applications, Bochum, Germany
  3. Larose, G.L. (1992), "The response of a suspension bridge deck to turbulent wind: the taut strip model approach", MESc Thesis, The Boundary Layer Wind Tunnel Laboratory, The University of Western Ontario, London, Canada.
  4. Larose, G.L., Tanaka, H., Gimsing, N.J. and Dyrbye, C. (1998), "Direct measurements of buffeting wind forces on bridge decks", J. Wind Eng. Ind. Aerod., 74-76, 809-818. https://doi.org/10.1016/S0167-6105(98)00073-7

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