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Date of Publication:2012-01-01

Journal:大连理工大学学报

Affiliation of Author(s):建设工程学部

Volume:52

Issue:3

Page Number:387-392

ISSN No.:1000-8608

Abstract:The floor response spectrum has great significance for the seismic
   safety assessment of structures and equipments of nuclear power
   plant(NPP).Deterministic methods are generally employed to evaluate the
   floor response spectrum in NPP design.Taking into consideration of the
   randomness of earthquake occurrence,based on the seismic risk analysis
   of earthquake affected zone and the probability density of earthquake
   occurrence at the sites of NPP in China,by employing Monte Carlo
   probabilistic statistics method,the effect of seismic uncertainty on the
   dynamic response of NPP structure is investigated.As indicated by the
   results of numerical example,with a probability of nonexceedance no less
   than 90%,the peak value of floor response spectrum obtained by
   considering the aforementioned uncertainties is somewhat lower than that
   obtained by ignoring the uncertainties.The research results offer a
   better understanding of the conservatism in NPP design.

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