[3B05-09] BWR PCV Design and AP1000 Test Run

[3B08] Applicability evaluation of steel plate reinforced concrete structure for primary containment vessel

(17)Improvement of Structural Integrity Evaluation Method for Primary Containment Vessel

*Masashi Tanabe¹, Yasumi Kitajima¹, Masaaki Osaka², Takahiro Momma³, Isao Kojima⁴, Ryoichi Nagayama⁵ (1. Toshiba, 2. Hitachi-GE, 3. Kajima, 4. Shimizu, 5. Chugoku Electric Power)

Keywords:primary containment vessel, reinforced concrete containment vessel, steel plate concrete containment vessel, Fukushima daiichi accident, severe accident

As the method of precisely evaluating structural integrity of primary containment vessel under the condition of an accident including that of Fukushima daiichi accident, the method of high temperature elasto-plastic analysis has been consolidated for RCCV and SCCV. Outline of the optimized analysis method is presented in this report.