Seismic qualification of piping systems by detailed inelastic response analysis, 3; Variation in elastic-plastic analysis results on carbon steel pipes from the benchmark analyses and the parametric analysis

弾塑性応答を考慮した配管系の耐震安全性評価,3; 炭素鋼配管の弾塑性解析結果のばらつき

中村 いずみ*; 大谷 章仁*; 森下 正樹 ; 白鳥 正樹*; 渡壁 智祥; 渋谷 忠弘*

Nakamura, Izumi*; Otani, Akihito*; Morishita, Masaki; Shiratori, Masaki*; Watakabe, Tomoyoshi; Shibutani, Tadahiro*

A Code Case in the framework of the Nuclear Codes and Standards of Japan Society of Mechanical Engineers (JSME) is currently under development to incorporate seismic design evaluation methodologies for piping systems by detailed inelastic response analysis and strain-based fatigue criteria as an alternative design rule to the current rule, in order to provide a more rational seismic design evaluation by taking directly the response reduction due to plasticity energy absorption into account. In this paper, the results of the parametric analyses and the variation in the elastic-plastic analysis are discussed.