项目底盘结构和上部剪力墙结构采用隔震层相连,形成高位转换且上下刚度相差大的结构体系。介绍层间隔震设计特点及采取的构造和加强措施,并对底盘结构进行动力弹塑性分析,计算减震系数并验算橡胶支座拉压应力及变形,研究底盘结构在大震下的受力特点和抗震性能,结果表明,主体结构能满足各项设计性能指标要求。 The structure of the chassis and the structure of the upper shear wall are connected by the isolation layer, forming a structural system with high conversion and big difference in vertical stiffness. This paper introduces the design features of strata isolation and its construction and measures to be taken. The dynamic elasto-plastic analysis of the chassis structure is also carried out. The damping coefficient is calculated and the tension and compression stress and deformation of the rubber bearing are checked. And seismic performance, the results show that the main structure to meet the design performance requirements.