tailieunhanh - Seismic isolation of nuclear power plants

The funding by the United States Nuclear Regulatory Commission of a research project to the Lawrence Berkeley National Laboratory and MCEER/University at Buffalo facilitated the writing of a soon-to-be-published NUREG on seismic isolation. Funding of MCEER by the National Science Foundation led to research products that provide the technical basis for a new section in ASCE Standard 4 on the seismic isolation of safety-related nuclear facilities. | http SEISMIC ISOLATION OF NUCLEAR POWER PLANTS ANDREW S. WHITTAKER MANISH KUMAR and MANISH KUMAR Department of Civil Structural and Environmental Engineering 212 Ketter Hall University at Buffalo State University of New York Buffalo NY 14260 . Corresponding author. E-mail awhittak@ Received October 13 2014 Seismic isolation is a viable strategy for protecting safety-related nuclear structures from the effects of moderate to severe earthquake shaking. Although seismic isolation has been deployed in nuclear structures in France and South Africa it has not seen widespread use because of limited new build nuclear construction in the past 30 years and a lack of guidelines codes and standards for the analysis design and construction of isolation systems specific to nuclear structures. The funding by the United States Nuclear Regulatory Commission of a research project to the Lawrence Berkeley National Laboratory and MCEER University at Buffalo facilitated the writing of a soon-to-be-published NUREG on seismic isolation. Funding of MCEER by the National Science Foundation led to research products that provide the technical basis for a new section in ASCE Standard 4 on the seismic isolation of safety-related nuclear facilities. The performance expectations identified in the NUREG and ASCE 4 for seismic isolation systems and superstructures and substructures are described in the paper. Robust numerical models capable of capturing isolator behaviors under extreme loadings which have been verified and validated following ASME protocols and implemented in the open source code OpenSees are introduced. KEYWORDS Nuclear Power Plant Seismic Isolation Elastomeric Bearings Sliding Bearings 1. INTRODUCTION Seismic base isolation is a relatively mature technology for protecting structures from the effects of moderate and severe earthquake shaking with key developments in the 1980s and 1990s. Although the technology has been widely .

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• Seismic isolation of nuclear power plants
• Nuclear power plants
• Soon to be published NUREG
• The National Science Foundation led
• Isolation systems specif