Seismic performance assessment of reinforced concrete containment vessel considering ground motion recorded in Sourth Korea

Abstract

Fragility analysis is a step of SPRA, that is the process to describe the relation between PGA and probability of failure of target structure, component and system. Current guideline for seismic performance assessment, which based on the Kennedy et al. (1980)’s study, reflect the earthquake characteristic of west region of U.S. In this reason, difference in earthquake characteristics of each region should be considered, when seismic performance assessment was conducted at other region. This paper study about the effects of characteristics of earthquake time histories on fragility curve for containment of nuclear power plant. Several time histories are created by spectral matching between the median response spectrum and the several recorded earthquakes including Kyoungju earthquake data. We conducted certain number of FEM analysis by using these created time histories and developed fragility curves. Resulting fragility curves are compared by their ground motion parameter, and the reliability of ground motion histories measured at South Korea are investigated.