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根据弹性桩支承空间刚体的力学模型，分析高桩墩的动力特性；按振型分解反应谱法给出计算水平地震惯性力和惯性扭矩的解析表达式，为高桩墩的抗震设计提供考虑扭转影响的计算方法。
According to the mechanical model of rigid body supporting space, the dynamic characteristics of high pier are analyzed. The analytic expression of horizontal inertial force and inertia moment is given by vibration mode decomposition response spectrum method. Impact calculation method.