Research on Seismic Isolated Floor Slab with Damper and Rolling Base

Earthquake is one of the major threats towards building and non-building structure and various seismic isolation technologies have gained a good development all-round the world. Based on such a condition, a new form of seismic isolation technology is raised, which combine rolling bases and dampers to isolate floor slabs from quake wave. Analysis towards scaled model dynamic test shows that this seismic isolation technology for floor slabs can effectively reduce response acceleration of floor slabs, especially when frequency of input acceleration is high. While frequency of input acceleration is low, it has to be assured that when slab hits damper, the hitting should be soft so that the response acceleration can be controlled at a low level.