Field Observation of Wind-induced Vibration Using Large-scale Inclined Cable Model

Abstract

A large-scale inclined cable model was installed in the southernmost cape of the Japan main island and its behaviors have been observed all the year round to investigate the mechanisms of wind-induced vibrations of inclined stay cables. Using a few types of the cable models, their responses have been measured and analyzed especially under seasonal wind of winter and typhoon wind of summer. Then, the rain-wind induced vibration and the galloping like vibration was observed. The mechanism of the second vibration was not completely proved as galloping. However, this result may show the possibility of divergent type vibration on the stayed cables.