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

Abstract:

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.

• Periodical: Applied Mechanics and Materials (Volumes 166-169)
• Pages: 2275-2282
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.166-169.2275
• Online since: May 2012
• Authors: Wen Guang Liu, Rui Dong Wang, Lei Hua, Wen Fu He

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