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采用子结构法对地基高层筒体结构进行地震反应分析．地基阻抗采用拟合数值结果得到的近似公式，上部结构采用有限条法计算结构侧向刚度矩阵，综合考虑基础与结构的动力平衡条件导出地基结构耦合系统的运动方程．文中对一栋２１层筒中筒结构进行了地震反应分析，讨论了不同场地，不同地震输入以及基础埋深等因素对结构地震反应的影响．
Seismic response analysis of foundation tall tubular structure by substructure method. The ground impedance is approximated by fitting the numerical results. The superstructure uses the finite strip method to calculate the structural lateral stiffness matrix. The equations of motion of the ground-structure coupling system are derived considering the dynamic equilibrium conditions of foundation and structure. In this paper, the seismic response analysis of a 21-storey tubular middle-tube structure is discussed. The influences of different sites, different earthquake inputs and buried depths on the seismic response of structures are discussed.