Abstract
Cable-stayed bridges are exposed to different weather conditions including wind and rain. The wind can excite the cables causing them to vibrate and this effect can be amplified in the presence of rain. There are a limited number of facilities worldwide capable of testing rain-wind induced vibration (RWIV) on large stay cable models. A new RWIV test rig has been developed for use in the National Research Council 9 m Wind Tunnel. The RWIV test rig and rain system were commissioned in July–August 2019. The commissioning study demonstrated the ability of the rig to generate large-amplitude wind-induced vibrations on a cable with a length of 5 m and a length-to-diameter ratio of 23.
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