高层建筑风振计算的虚拟激励法

Calculation of Wind-induced vibration for High-rise Building by Pseudo-excitation Method

对传统的虚拟激励方法进行改进,以某高层建筑为工程背景,以风洞试验数据为基础,进行高层建筑风振响应计算,并与模态叠加法的计算结果进行比较分析,结果表明改进的虚拟激励法应用于高层建筑的风振分析,计算精度满足要求。

The traditional pseudo--excitation method was improved and the improved method was applied to the calculation of wind induced vibra- tion for the high--rise building. The comparison of the result from the improved pseudo--excitation method and mode superposition method was conducted based on the load data of the wind tunnel test. It was indicated that precision of the result calculated by the improved pseudo excitation method could meet the requirement.