采用刚性地基假定是目前结构控制研究的基本条件,此假定忽略了土与结构相互作用效应的影响。但由于土与结构相互作用效应对结构振动特性有一定的影响,进而影响结构控制的效果,因此有必要研究土与结构动力相互作用的简化计算方法。基于上述原因,进行了线性体系土与结构相互作用效应对隔震体系的MB计算方法的研究。%Rigid foundation assumption, at present, is the basic condition for the structure control study, ignoring effect of the soil - structure interaction. Many foundations, however, are not rigid, and a lot of structures are built on soft foundations, which will make the vibration characteristics different from those in the rigid foundations. The change of these vibration characterists will affect the result of structure control. It is, therefore, necessary to study the calculation method of the soil - structure interaction. On the basis of the above analysis, this paper discusses the MB calculation method of the effect of the soil - structure interaction on isolation system.
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