420 発電用新型炉に適用する3次元免装置の開発 : 油圧ロッキング抑制装置の高圧力下の作動性と健全性評価(耐震I,OS-2 耐震・免震・制震,総合テーマ「伝統を,未来へ!」)

概要

論文の詳細を見る
Three dimensional (3D) seismic isolation devices have been developed for the base isolation system of the Fast Breeder Reactor (FBR) that is an advanced nuclear reactor power plant building. The developed seismic isolation system consists of the hydraulic type vertical springs with rocking suppression mechanism and the laminated rubber bearings for horizontal direction. The isolation performances, i.e. natural period, damping, and rocking-suppression, have already been evaluated by the technical feasibility study and performance tests on a system which consists of down-sized devices on the shaking table, but in the seismic simulation on the real size building with this system, high hydraulic pressure was generated by rocking-suppression device under an extremely large seismic motion. In this paper, it is reported the frictional characteristics on high hydraulic pressure condition from the experiments on the 1/2 size of real device and the results of the seismic simulation on the real size building with isolation-device that has those characteristics.
一般社団法人日本機械学会の論文
2010-09-14