[1P08-13] Seismic Counter Measures against Cliff Edges

[1P11] Development of seismic counter measures against cliff edges for enhancement of comprehensive safety of nuclear power plants

Part 14: seismic counter measures against cliff edges by seismic isolation

*Keisuke Minagawa¹, Satoshi Fujita², Osamu Furuya², Tsuyoshi Takada³ (1. Saitama Institute of Technology, 2. Tokyo Denki University, 3. The University of Tokyo)

Keywords:seismic risk, cliff edges, Seismic behavior, base-isolation

Seismic isolation systems using rubber bearings have nonlinearities such as a change of properties of material, collision with surrounding walls and so on against larger earthquake than expected. This paper presents influence of the nonlinearities from a viewpoint of cliff edges.