ABSTRACT

The wind monitoring data collected from July to August 2015 of a large span suspension bridge in East China Sea and 32 vortex-induced vibration events during this period are studied in this paper. Firstly, the wind speed, wind direction, gust factor and turbulence intensity during the vortex-induced vibration are calculated. The results show that the wind speed and direction can be used to predict the occurrence of the vortex-induced vibration. And then, by the statistics of wind speed and direction of vortex-induced vibration events and the normal conditions, the occurrence probability of vortex-induced vibration can be determined by taking advantage of the data recorded by a single anemometer. Finally, data fusion theory is carried out to determine the occurrence probability of vortex-induced vibration by combining the results of multiple anemometers. The analysis result is available to develop the management measures to manage the vortex-induced vibration.