Effect of seismic hazard definition on isolation-system displacements in nuclear power plants

2017 ◽  
Vol 148 ◽  
pp. 424-435 ◽  
Author(s):  
Manish Kumar ◽  
Andrew S. Whittaker
Keyword(s):  
Seismic Hazard ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Isolation System

An earthquake isolation system for steam generators in nuclear power plants

1982 ◽  
Vol 73 (3) ◽  
pp. 229-252 ◽  
Author(s):  
M.A. Bhatti ◽  
V. Ciampi ◽  
J.M. Kelly ◽  
K.S. Pister
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Steam Generators ◽  
Isolation System

Required Properties of Seismic Isolation System for Nuclear Power Plants

2010 ◽  
Author(s):  
Satoshi Fujita ◽  
Keisuke Minagawa ◽  
Takeshi Kodaira
Keyword(s):  
Nuclear Power ◽  
Seismic Isolation ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Three Dimensional ◽  
Isolation System ◽  
Seismic Safety ◽  
Isolation Systems ◽  
Rubber Bearings ◽  
Seismic Isolation Systems

In Japan, applications of seismic isolation systems to new generation nuclear power plants and fast breeder reactors have been expected in order to enhance seismic safety. However there are lots of restrictions for design of isolation systems, such as strong design seismic wave, deformation of piping between an isolated structure and a non-isolated structure, and so on. In addition combination of horizontal and vertical isolation has possibility to cause rocking motion if a three-dimensional isolation system is applied. Therefore isolation systems should be designed properly. Moreover the design of seismic isolation system has to consider influence on inner equipment and piping. This paper describes investigation regarding required properties and performance of seismic isolation system for nuclear power plants. The investigation is carried out by numerical analysis. In the analysis, various isolation devices such as friction pendulum bearings and so on are applied as well as natural rubber bearings.

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