J101021 積層ゴムの非線形性を考慮した免震原子力建屋の応答に関する研究([J10102]原子力施設の耐震安全性に関する実験的・解析的検討(2))

概要

論文の詳細を見る
The concept of "Residual Risk" was introduced in "Regulatory Guide for Reviewing Seismic Design of Nuclear Power Reactor Facilities" that had been revised in 2006. As for the assessment of "Residual risk", it is necessary to consider the response to unexpected input wave. The other side, the application of an isolation system is examined as a technique to decrease the input to the nuclear power plant. Rubber bearings used as the isolation system cause nonlinearity in the restoring force when unexpected earthquake and has a bad influence for the response. Therefore, in this study, isolated building model considering nonlinearity of the rubber bearing was used, the effect of the isolation system is examined from the response of the building. In this paper, the earthquake wave of "The 2011 off the Pacific coast of Tohoku Earthquake" was used and seismic response analysis was carried out. As a result, it was confirmed to be able to decrease the response acceleration to 1/10 by the isolation system and the nonlinearity of the rubber bearing was generated by 5.2 times this earthquake wave.
一般社団法人日本機械学会の論文
2011-09-11