417 水中振動試験によるBWR使用済燃料貯蔵ラックの減衰比(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
In Japan, Regulatory Guide for Reviewing Seismic Design of Nuclear Power Reactor Facilities was revised in 2006. There are some nuclear plants in which the design basis earthquake ground motions by the revised Seismic Guide are larger than those by the earlier version of the Seismic Guide. Then seismic margin of nuclear facilities has been profoundly discussed. The design damping value for BWR spent fuel storage rack is 1%. These are installed in the spent fuel pool. So fluid damping effects occur. However, these damping effects are not reflected to the present design damping value for BWR spent fuel rack. We carried out the underwater vibration test to obtain more realistic damping value and simulation analysis to confirm the adequacy of the damping value for BWR spent fuel storage rack.
2010-09-14