【摘要】 本文研究了高层建筑风致动态响应中的背景响应。首先推导了结构风致动态背景响应的计算公式，然后在此基础上指出了传统的计算高层建筑风致动态响应方法的实质和适用条件，并给出了本文方法与传统方法对比的算例。研究表表，当背景响应占结构的整个动态响应的比例较大时，用传统方法计算高层建筑的背景响应将产生不能忽视的误差。更多还原

【Abstract】 An analysis model for the wind-induced background responses of tall buildings is discussed. Firstly, the formulas for the wind-induced background responses are derived, and on which base the essence and the applicable conditions of the traditional procedures are pointed out.Then, some numerical examples are given. The resultS show that the traditional procedures will lead to some unfavorable background response estimations.更多还原