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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ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
July 18–22, 2010
Bellevue, Washington, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4927-9
PROCEEDINGS PAPER
Required Properties of Seismic Isolation System for Nuclear Power Plants
Satoshi Fujita,
Satoshi Fujita
Tokyo Denki University, Tokyo, Japan
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Keisuke Minagawa,
Keisuke Minagawa
Tokyo Denki University, Tokyo, Japan
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Takeshi Kodaira
Takeshi Kodaira
Tokyo Denki University, Tokyo, Japan
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Satoshi Fujita
Tokyo Denki University, Tokyo, Japan
Keisuke Minagawa
Tokyo Denki University, Tokyo, Japan
Takeshi Kodaira
Tokyo Denki University, Tokyo, Japan
Paper No:
PVP2010-25409, pp. 193-199; 7 pages
Published Online:
January 10, 2011
Citation
Fujita, S, Minagawa, K, & Kodaira, T. "Required Properties of Seismic Isolation System for Nuclear Power Plants." Proceedings of the ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASME 2010 Pressure Vessels and Piping Conference: Volume 8. Bellevue, Washington, USA. July 18–22, 2010. pp. 193-199. ASME. https://doi.org/10.1115/PVP2010-25409
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