[1L01-06] External PRA

[1L04] A Framework of RI-PB Design Application for Seismic Events

Part 6:Development of system analysis code considering diversity of period characteristics of nuclear facilities

*Mituharu Ohara¹, Yasuki Ohtori¹, Hitoshi Muta¹, Yoshifumi Katayama², Toshiro Sakai² (1. Tokyo City Univ. , 2. CRIEPI)

Keywords:Seismic diversity, System analysis, Probabilistic risk assessment

After the accident at the Fukushima Daiichi Nuclear Power Station, the diversity of safety measures tends to be emphasized. In the same way, the risk of system damage considering seismic diversity should be reduced by considering the period characteristics of the seismic measures. This paper presents the development plan of the system analysis code that takes into account the diversity of the periodic characteristics of nuclear structures, systems and components.