[3J01-05] SeismicPRA

[3J03] Evaluation of Seismic Diversity of SSC system in PRA

Part3 : Examination of the influence of seismic source characteristics on the seismic diversity system

*Katayama Yoshifumi¹, Yasuki Ohtori², Toshiaki Sakai³, Hitoshi Muta² (1. Chuden Engineering Consultants, 2. TCU, 3. CRIEPI)

Keywords:seismic diversity, seismic PRA, response spectrum, seisumic isolation, inter-period correlation

In the previous study, we focused on the natural period of the device and the response spectrum characteristics of the seismic ground motion, and proposed a risk assessment method for seismic diversity system composed of seismic designed devices and seismic isolated devices. In addition, the effectiveness of seismic diversity system was quantitatively shown by comparing the risk of seismic diversity system with the risk of multiplexing system composed of the same type of devices in a uniform random source (area source) that gave various magnitudes and seismic source distances. In this study, we examined the influence of the characteristics of the area source on the effectiveness of seismic diversity systems.