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Wind and Structures Volume 4, Number 5, October 2001 , pages 399-412 DOI: https://doi.org/10.12989/was.2001.4.5.399 |
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Pressure distribution and aerodynamic forces on stationary box bridge sections |
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Francesco Riddiardelli(Italy) and Horia Hangan(Canada)
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| Abstract | ||
| Simultaneous pressure and force measurements have been conducted on a stationary boxrndeck section model for two configurations (namely without and with New Jersey traffic barriers) atrnvarious angles of incidence. The mean and fluctuating aerodynamic coefficients and pressure coefficientsrnwere derived, together with their spectra and with the coherence functions between the pressures and therntotal aerodynamic forces. The mean aerodynamic coefficients derived from force measurements are firstrncompared with those derived from the integration of the pressures on the deck surface. Correlationrnbetween forces and local pressures are determined in order to gain insight on the wind excitationrnmechanism. The influence of the angle of incidence on the pressure distribution and on the fluctuatingrnforces is also analysed. It is evidenced how particular deck section areas are more responsible for thernaerodynamic excitation of the deck. | ||
| Key Words | ||
| bridge aerodynamics; aerodynamic forces; wind tunnel testing; pressure measurement. | ||
| Address | ||
| Francesco Ricciardelli, Department of Mechanics and Materials, University of Reggio Calabria, Via Graziella, Feo di Vito, 89060 Reggio Calabria, ItalyrnHoria Hangan, The Boundary Layer Wind Tunnel Laboratory, The University of Western Ontario, London, Ontario, N6A 5B9, Canada | ||