Research and Development of System/Plant Level Seismic Fragility Quantization Program

The conception and model of seismic fragility were introduced. General quantization process of seismic fragility of system/plant level was studied. The quantization program of seismic fragility of system/plant level based on Monte Carlo simulation was researched and developed. The seismic fragility of China Experimental Fast Reactor (CEFR) accident residual heat removal system was modeled. The system seismic fragility parameters, A_m=1.205 g, β_u=0.42, β_r=0.42, HCLPF=0.33g, were obtained. The results show that the CEFR accident residual heat removal system has high seismic capacity, and Monte Carlo simulation is effective method for seismic fragility quantization of system/plant level.