Wind-induced dynamic response analysis by time-domain method of a380 large-span hangar

摘要

The hangar structures have the features of large-span, one side opening which leads to weak vertical stiffness, sensitivity to wind induced-vibration. In this paper, time domain method is adopted to perform the wind-induced dynamic analysis for A380 large-span hangar roof. The wind-induced dynamic characteristics and the ruler of wind fluttering factor are studied. The analytical results show that the distribution of the mean square root value of the roof displacement is similar under the different wind direction. The maximum value is at the middle span of the roof and the minimum value is at three roof-supporting sides and at the middle column of the gate. The average vale of wind fluttering factor is about the same under the different wind direction and it is among 1.5 and 2.0. It is reasonable to take one wind fluttering factor to calculate the equivalent wind load for A380 hangar. The results of this paper provide the base for the wind-resistant design of A380 hangar and can be References for the coming hangars.