Research on Seismic Isolation Properties for DFPS System
A theoretical analyzing approach about a novel seismic isolation system, DFPS (Double Slipping-Surfaced Friction Plate System), is presented in this paper. Its governing equation is similar to that of the FPS friction pendulum system with single slipping surface. It is shown that the inter-storey drift resulted from seismic action could be drastically decreased on buildings equipped with DFPS system. If an optimum combination of slide radius and slipping friction coefficient is adopted, the seismic isolation effectiveness could be as high as 90%.
N. Ge et al., "Research on Seismic Isolation Properties for DFPS System", Advanced Materials Research, Vols. 163-167, pp. 4342-4345, 2011