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简单地叙述了目前高层建筑地震反应分析中常用的地震动输入方法，用相同的高层建筑和四种不同的场地组建成四个结构—场地一体化模型，通过对四种模型计算得到的场地地表反应、结构顶点水平运动、结构根部的等效输入相对入射波的传递函数的幅值谱和结构单元内力的比较，论证了影响高层建筑等效输入地震动的主要因素，并说明了在结构地震反应分析中考虑结构—土相互作用影响的必要性。
The ground motion input method commonly used in the seismic response analysis of high-rise buildings is briefly described. Four structures—site integration models are constructed using the same high-rise buildings and four different site groups, and the site surface calculated by the four models is obtained. The main factors affecting the equivalent input ground motion of a high-rise building are demonstrated by the comparison of the response, the horizontal movement of the structure vertex, the equivalent input of the structural root to the amplitude spectrum of the transfer function of the incident wave, and the internal force of the structural element. The necessity of the influence of structure-soil interactions is taken into account in the reaction analysis.