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基于脉动风的基本理论和Davenport风荷载功率谱,介绍计算高层建筑结构顺风向动力响应的计算方法,提出在频域内对高层建筑结构迎风面通过施加风压功率谱的方法进行高层建筑结构的随机振动分析。借助ANSYS对结构进行定制功率谱函数并加载,得到高层建筑结构自振频率及风压谱施加后的模态、应力变化情况,并将函数加载结果与静力求解结果进行分析比较。
Based on the basic theory of pulsating wind and Davenport wind load power spectrum, the calculation method of calculating the downwind dynamic response of high-rise buildings is introduced. The high-rise building structure is proposed to be randomized by applying wind pressure power spectrum in the frequency domain Vibration analysis. By using ANSYS to customize the power spectrum function of the structure and loading it, the natural frequency of the tall building and the modal and stress changes after the wind pressure spectrum is applied are obtained. The results of the function loading and the static solution are analyzed and compared.