【作者】 宋长清； 唐小微； 傅炳忠；

【Author】 Song Chang qing Tang Xiao wei Fu Bing zhong(Liao Ning Institute of Technology Jin Zhou 121001)

【机构】 辽宁工学院土木系；

【摘要】 本文提出了一个剪切振动连续体模型,将地基土、基础、上部结构视为一种性质分段均匀仅考虑剪切振动的连续体,考虑基础转动,将地基土的动力特性、阻抗直接引入动力方程中,利用质量、刚度及阻尼对振型函数的正史性对动力方程解藕,以简化计算。算例结果显示此模型适用于以剪切振动为主的多层框架结构考虑土一结构相互作用的地震反应分析。更多还原

【Abstract】 This paper presents a model of continuous column for shearing vibration. Soil, foundation and structure assume a continuous column, which is divided into many sections and nature of a section is same. Dynamic character and impedance of the soil introduces directly into dynamic equations of the system and the foundation is turned by the structure. We can solve coupling terms because mass, stiffness and damping were orthogouatlity to mode functions. The result of the example showed that the method suites SSI system of many layers frame structure in analysis of structural seismic response with main shearing vibration.更多还原