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基于等效线性化法对并联复合隔震体系进行了简化计算分析。首先通过推导,将由基底剪力和位移表达的恢复力模型转化为基底剪力系数和位移模型;然后依据最新的建筑抗震设计规范,对简化分析方法的应用进行阐释;最后结合基底剪力系数和位移的结果,对并联复合隔震体系的隔震性能进行了分析,重点考察了不同刚度系数、摩擦承压比、场地特征周期的影响。结果表明:简化分析方法可以便捷有效地用于并联复合隔震体系的初步设计,为并联复合隔震体系的推广和应用奠定了基础。
Based on the equivalent linearization method, the simplified composite seismic isolation system is calculated and analyzed. Firstly, the model of the restoring force expressed by the shear and displacement of the base is first transformed into the base shear coefficient and the displacement model. Then, the application of the simplified analysis method is explained according to the latest seismic design code of buildings. Finally, The results show that the seismic isolation performance of parallel composite isolation system is analyzed. The effects of different stiffness coefficients, bearing ratio of friction and periodicity of the site are mainly studied. The results show that the simplified analysis method can be used easily and effectively in the preliminary design of parallel composite seismic isolation system, which lays the foundation for the popularization and application of parallel composite seismic isolation system.