[3G01-05] Seismic Isolation Device for Sodium-cooled Fast Reactor

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[3G02] Development of Seismic Isolation Device for Sodium Fast Reactor PlantPart 2 : Development of Horizontal Seismic Isolation Device

*Shinobu Yokoi¹, Tomohiko Yamamoto², Takahiro Somaki³, Nobuo Murota⁴, Naoki Endo⁵ (1. MFBR, 2. JAEA, 3. OBAYASHI, 4. BS, 5. Kawakin Core-Tech)

Keywords:

Fast reactor,Horizontal seismic isolation device,Thick laminated rubber,Horizontal oil damper

As the seismic isolation device for a fast reactor plant, we have developed a horizontal seismic isolation device and a three-dimensional seismic isolation device. The horizontal seismic isolation device is composed of a thick laminated rubber and a horizontal oil damper. As element tests of the horizontal seismic isolation device, we conducted characteristic tests using a half-scale thick laminated rubber, and reported the results of the load-displacement relationship, linearity, and fracture limit data. We also developed a horizontal oil damper, and reported the results of the load-displacement characteristic tests, as well as the achievement of a maximum load of 675kN and a maximum speed (allowable speed) of 2.7m/s.