Seismic Fragility Analyses of Nuclear Power Plant Structures Based on theRecorded Earthquake Data in Korea

摘要

This paper briefly introduces an improved method for evaluating seismic fragilities of components of nuclearpower plants in Korea. Engineering characteristics of small magnitude earthquake spectra recorded in the Koreanpeninsula during the last several years are also discussed in this paper. For the purpose of evaluating the effects of therecorded earthquake on the seismic fragilities of Korean nuclear power plant structures, several cases of comparativestudies have been performed. The study results show that seismic fragility analysis based on the Newmark's spectra inKorea might over-estimate the seismic capacities of Korean facilities.