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Seismic demands on secondary systems in base‐isolated nuclear power plants
Author(s) -
Huang YinNan,
Whittaker Andrew S.,
Constantinou Michael C.,
Malushte Sanjeev
Publication year - 2007
Publication title -
earthquake engineering and structural dynamics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.218
H-Index - 127
eISSN - 1096-9845
pISSN - 0098-8847
DOI - 10.1002/eqe.716
Subject(s) - nuclear power plant , nuclear power , base isolation , seismic isolation , seismic analysis , engineering , shutdown , structural engineering , acceleration , civil engineering , reliability engineering , nuclear engineering , mechanical engineering , physics , classical mechanics , frame (networking) , nuclear physics
Numerical models of a sample nuclear power plant (NPP) reactor building, both conventionally constructed and equipped with seismic protective systems, are analysed for both safe shutdown and beyond‐design‐basis earthquake shaking at two coastal sites in the United States. Seismic demands on secondary systems are established for the conventional and seismically isolated NPPs. The reductions in secondary‐system acceleration and deformation demands afforded by the isolation systems are identified. Performance spaces are introduced as an alternate method for evaluating demands on secondary systems. The results show that isolation systems greatly reduce both the median and dispersion of seismic demands on secondary systems in NPPs. Copyright © 2007 John Wiley & Sons,Ltd.