【摘要】 以多层基础隔震框架为研究对象,利用有限元分析方法,研究地基-结构相互作用效应对基础隔震结构隔震效果的影响。对考虑和不考虑SSI效应时隔震体系的动力特性和地震响应的差异进行对比,并对地基-结构相互作用效应各组成因素对隔震后地震响应的影响规律进行分析。分析结果表明,地基-结构相互作用效应对基础隔震结构存在影响,在工程设计中,隔震结构不应忽略地基-结构相互作用效应的影响。更多还原

【Abstract】 Regarding multilayer base shake-isolation framework as research object,the influence of SSI effect on base isolated structure by means of the finite element analysis method is studied.The difference of dynamic characteristic and earthquake response of shake-isolation system which considers SSI effect or not is contrasted.And the influence law of various components of SSI effect to the earthquake response of isolated structure is also discussed.The results indicate that SSI effect has influenced on base isolated structure.In engineering design,isolated structure should not ignore the influence of SSI effect.更多还原