528 Study on Seismic Response of Isolated Nuclear Power Plant based on Probabilistic Assessment : 1st Report, Modeling Considering Nonlinearity of Rubber Bearings

2011 ◽  
Vol 2011 (0) ◽  
pp. _528-1_-_528-7_
Author(s):  
Satoshi FUJITA ◽  
Keisuke MINAGAWA ◽  
Akira YAMAGUCHI ◽  
Takashi TAKADA ◽  
Kenichi KURISAKA
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Seismic Response ◽  
Nuclear Power ◽  
Probabilistic Assessment ◽  
Rubber Bearings

J101021 Seismic Response of Isolated Nuclear Power Plant Considering Nonlinearity of Rubber Bearings

2011 ◽  
Vol 2011 (0) ◽  
pp. _J101021-1-_J101021-3
Author(s):  
Masato OGURO ◽  
Satoshi FUJITA ◽  
Keisuke MINAGAWA ◽  
Akira YAMAGUCHI ◽  
Takashi TAKADA ◽  
...  
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Seismic Response ◽  
Nuclear Power ◽  
Rubber Bearings

Seismic Isolation Response and Parameter Influence Analysis of Nuclear Power Plant during Great Earthquake

2012 ◽  
Vol 166-169 ◽  
pp. 2275-2282 ◽  
Author(s):  
Wen Guang Liu ◽  
Rui Dong Wang ◽  
Lei Hua ◽  
Wen Fu He
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Seismic Response ◽  
Energy Absorption ◽  
Nuclear Power ◽  
Parameter Analysis ◽  
Great Earthquake ◽  
Lumped Mass ◽  
Earthquake Energy ◽  
Reactor Structure

In this paper, the behavior of the structure of a pressurized water reactor (PWR) nuclear power plant (NPP) in China, is taken into consideration during a great earthquake especially beyond the design benchmark. The effects of earthquake energy absorption are analyzed using simplified multi-lumped mass system. The effects of site conditions, post yield stiffness, yield force on isolated reactor structure (IRS) are also discussed. The results show that isolation technology can significantly reduce seismic response of the reactor structure and achieve preferable earthquake energy absorption of the IRS beyond the design benchmark during a great earthquake. Earthquake wave characteristics and isolation layer parameters have direct effects on seismic response and the results of parameter analysis can provide reference for a correct and logical design of IRS.

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