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JSFR実用炉の概念設計,10; 高速炉用免震システム

Conceptual design toward the commercial reactor of JSFR, 10; Seismic isolation system for sodium-cooled fast reactors

岡村 茂樹*; 神島 吉郎*; 根岸 和生*; 北村 誠司

Okamura, Shigeki*; Kamishima, Yoshio*; Negishi, Kazuo*; Kitamura, Seiji

JSFR(Japan Sodium-cooled Fast Reactor)では、地震時の荷重を低減させるため、高速炉の条件に適した高速炉用水平免震システムの採用を検討している。本報では、本システムの狙いと原子炉構造固有周期帯における耐震性向上効果を検討し、技術の採否評価結果について報告する。

A horizontal seismic isolation system is planned to be adopted to Japan Sodium-cooled Fast Reactor (JSFR) as a candidate of innovative technology that suits conditions of fast reactors and reduces the load in the event of an earthquake. The aim of this system and its enhancing effect on seismic resistance in the periodic band specific to reactor structure have been examined. This paper reports the result of applicability study of the innovative technology.

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