[2C10-14] PRA Improvement

[2C12] Research on Seismic Correlation for PRA

Part 3: Effect of nonlinear response of the building on response correlation

*Ryo Komine¹, Yasuki Ohtori¹, Hitoshi Muta¹, Masato Nakajima² (1. TCU, 2. CRIEPI)

Keywords:Seismic Probabilistic Risk Assessment, Seismic correlation, Response correlation, Common cause failure, Nonlinear

In seismic PRA, there is a possibility that multiple components can be damaged simultaneously due to common causes. Therefore, the analysis considering the response correlation is required. In this study, to clarify the effect of building nonlinearity on seismic correlation, we modeled the PCCV of a nuclear reactor facility with shear and bending nonlinearity, and conducted seismic response analysis using the model with observed ground motions.