Abstract
Because of higher stiffness, continuous steel beam bridges are usually free of flutter but are apt to vortex-induced vibration (VIV) due to low damping. Although vortex-induced vibration is a kind of limited amplitude response, and may occur at low wind speed. It may bring discomfort and fatigue, even endanger the bridge. In this paper, based on the large scale aeroelastic model wind tunnel testing, vortex-induced vibration of a continuous steel beam bridge was studied under uniform oncoming flow. In order to mitigate excessive amplitude of vortex-induced vibration, a kind of guide vane installed at both sides of the banister is investigated. The wind tunnel test also examines the role of additional damping in mitigating vortex-induced vibration.
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