Vortex-induced vibrations are not negligible while evaluating the aerodynamic and aeroelastic behavior of a long-span suspensionbridge. This kind of forcing, that can produce high vibration levels, occurs at very low reduced velocities concerning low wind speed and high-frequency modes. This work presents results of experimental tests performed on the multibox deck shape of the Messina Strait bridge investigating vortexshedding phenomena and developing a numerical model to reproduce the vortexsheddingforcing. The experimental tests, focused on low reduced velocities, highlight the typical non-linear pattern of the vortexshedding.

On the vortex shedding forcing on suspension bridge deck

DIANA, GIORGIO;RESTA, FERRUCCIO;BELLOLI, MARCO;ROCCHI, DANIELE
2006-01-01

Abstract

Vortex-induced vibrations are not negligible while evaluating the aerodynamic and aeroelastic behavior of a long-span suspensionbridge. This kind of forcing, that can produce high vibration levels, occurs at very low reduced velocities concerning low wind speed and high-frequency modes. This work presents results of experimental tests performed on the multibox deck shape of the Messina Strait bridge investigating vortexshedding phenomena and developing a numerical model to reproduce the vortexsheddingforcing. The experimental tests, focused on low reduced velocities, highlight the typical non-linear pattern of the vortexshedding.
2006
Bridge, Vortexshedding, Flutter derivatives, Power input, Equivalent oscillator
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/514357
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