Seismic Isolation Design Of An Adding Stories Brick Masonry Building

With the development of the city and the demands to the function of the buildings, a lot of low buildings need to be rebuilt to satisfy these new demands. 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. On the basis of summarizing antecessors' work, following work is conducted in this paper:First of all, the study work of additional stories structure is illuminating by the numbers. Associated with structure dynamics, we analyze the theory of adding stories directly and seismic isolation design. Second, bestowing sandwich rubber cushion between the bottom of additional structure and the top of the original structure, which separate the new structure from the old one, then form an additional system of brick masonry residence buildingRoutine 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 rubber 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.