高速炉プラントに適用する免震装置の開発,4; 3次元免震装置の組合せ試験

Development of seismic isolation device for sodium fast reactor plant, 4; Assembly test of 3D isolation device

湯川 正貴*; 諸菱 亮太*; 山本 智彦  ; 平山 智之*; 横井 忍*

Yukawa, Masaki*; Morobishi, Ryota*; Yamamoto, Tomohiko; Hirayama, Tomoyuki*; Yokoi, Shinobu*

厚肉積層ゴムと皿ばねユニットを直列配置した3次元免震装置を対象とした1/2縮尺組合せ試験体を製作し、水平・上下2方向同時載荷による静的載荷試験を実施した。試験結果から、本3次元免震装置は所定の設計性能と滑らかな作動性を保持することを認め、装置概念を確立した。

A half-scale combined test specimen was fabricated for a three-dimensional seismic isolation device in which thicker laminated rubber bearing and disc spring units are arranged in series, and a static loading test was carried out by simultaneous loading in both the horizontal and vertical directions. The test results demonstrated that this three-dimensional seismic isolation device maintained the specified design performance and smooth operation, and the device concept was established.