Abstract
The results of a wind-tunnel study of the aerodynamic response and stability of a cable-stayed bridge deck are presented. A bridge section model was employed in smooth flow and the effects of relaxing the Froude number similarity and modifying the bridge geometry by the removal of traffic barriers were investigated. It was verified that the Froude number similarity can be relaxed. The results showed that the bridge deck was unstable in torsion. Removal of the traffic barriers resulted in improved bridge deck aerodynamic behavior, i.e. an increase in the critical wind speed for torsional flutter and a decrease in the vortex-induced response.
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