【摘要】 本文提出了基底隔震结构的分布参数剪切梁模型，给出了该模型下的自由频率方程及任意阶振型函数的解析表达式。与现有的一阶刚体模型、二阶质点模型、多质点模型及时程分析法相比较，采用本模型可以更清楚、更全面地反上部结构与基础隔震参数的相互关系，且易于为工程设计人员所接受。更多还原

【Abstract】 In this paper, a new model for the dynamic calculation of base-isolated buildingswas proposed,By assuming the building to be continuouse and its defromations to be shearing form mainly,the buliding could be reduced to a based on an elastic bearing.Using analytic methods,vibration frequencies were obtained, and the free vibration functions were given in the analysis forms. Some dynamic characters of base-isolated buildings were discussed, and the relationships between the designed parameters were given directly.The new model looks better than the rigid model.two particles model and multi-particle methods, and easier to be used by engineers.更多还原