612 発電用新型炉へ適用する 3 次元免震システムの研究 : 油圧機構 : その 1

概要

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A three-dimensional seismic isolation system incorporating hydraulic mechanisms is proposed for ensuring not only high earthquake resistance but also cost economy of the Advanced Nuclear Power Plants. Gas spring mechanism consists of hydraulic load-carrying cylinders and accumulator units are applied to the vertical isolation, and laminated rubber bearings are applied to the horizontal isolation. Rocking suppression cylinders are applied for restraining the rocking motion. Model tests and response analyses have been performed to verify the expected performance of this system. The tests have proved good agreement of performance between theoretical calculation and test data. From these results, it is concluded that the proposed system is well applicable to the FBR plant in the latest design study.
2002-09-13