北安河车辆段联合检修库A1区隔震设计

Seismic isolation design of A1 zone of joint inspection and repair database of Bei'an River Depot

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 project chassis structure and the upper shear wall structure are connected by the isolation layer, which forms the structural system with high-level transfer and large stiffness difference between the upper and lower parts. The interlayer seismic isolation design features were introduced as well as details of seismic design and strengthening measures. Dynamic elastic-plastic analysis was carried out on the chassis structure. Damping coefficient was calculated and tension and compression stresses and deformation of rubber bearing were checked, in order to study mechanical characteristics and seismic performance of the chassis structure under rare earthquake. The results show that the main structure can meet the requirements of the design performance index.