夹层橡胶隔震技术在砖混结构加层中的应用研究

Seismic Isolation Design of an Adding stories Brick Masonry Building

与直接加层结构相比,夹层橡胶垫隔震技术可使加层后的房屋调高抗震性能,降低结构的地震反应。在砌体结构加层连接部位安置橡胶垫耗能装置,利用时程分析方法对常规加层结构和有隔震装置的加层结构进行数值模拟计算,对比两种结构体系的加速度和位移,分析安放夹层橡胶垫耗能装置对降低砖混结构加层地震反应的可行性。与传统直接加层相比,夹层橡胶垫隔震技术能大幅度降低地震的不利影响。

Seismic isolation design of additional stories can increase the stories to the low building without dismantling the building. Comparing with adding stories directly, seismic isolation can decrease the seismic response, which make the new building have stronger resistance. The study of seismic resistant properties of building after adding stories will provide scientific evidence for adding stories to buildings. Routine additional stories structure and seismic isolation additional stories structure is calculated by time history method, which educe acceleration and displacement for the two structures and summarize the feasibility of that bestowing sandwich robber cushion can decrease the seismic response of low brick masonry building. The responses of additional stories under different conditions are analyzed, from which the influence of fields to additional stories is obtained.