[2N01-05] Seismic PRA 1

[2N02] Evaluation of Seismic Diversity of SSC system in PRA

Part6 : Application of the Response Surface Method to the Seismic Diverse System in Actual Seismic Environment

*Yoshifumi Katayama¹, Yasuki Ohtori², Hitoshi Muta², Toshiaki Sakai³ (1. Chuden Engineering Consultants, 2. TCU, 3. CRIEPI)

Keywords:seismic diversity, seismic PRA, response spectrum, seismic isolation, response surface method

The authors have proposed a risk assessment method for seismic diverse system composed of seismic designed devices and seismic isolated devices, focusing on the natural period of the devices and the response spectrum characteristics of the seismic ground motion. At the 2023 Spring Annual Meeting, we proposed an efficient procedure using the Response Surface Method in order to reduce computational burden in the evaluation of seismic diversity of SSC system, and applied to a uniform random source that gave various magnitudes and seismic source distances. In this study, we applied the efficient procedure to different types of actual seismic environment to confirm the effectiveness of it.