【摘要】 对分层弹性地基中的单桩基础通过特性分析建立了合理的力学模型，按分层弹性地基土模型对柱进行了扭转振动分析，给出了桩基础扭转自振特征及在扭转地震载荷与扭转振动载荷作用下的强迫反应解析解，文中的解析公式为分层弹性地基中的桩基础扭转动力反应分析提供了一种新的解析方法。更多还原

【Abstract】 In this paper,the reasonable mechanics model are established to single pile foundation in stratified elasto-foundation based on characteristic analysis,and the torsional vibration analysis of the pile has been carried out according to the model stratified elasto-foundation soil,the analytical solutions for the torsional free vibration characteristics and the coercion responses under the action of the torsional seismic loading and torsional vibration loading of the pile have been given as well. A new analytical method is given by the analytical formulas for the torsional dynamic response analysis of the pile foundation in stratified elasto-foundation in the paper.更多还原