Transactions of the Korean Society of Pressure Vessels and Piping (한국압력기기공학회 논문집)

Korean Society of Pressure Vessels and Piping (한국압력기기공학회)
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Seismic Analysis Methodology for Non-Nuclear Safety Piping in Nuclear Power Plants

원자력발전소 비안전등급 배관의 내진해석 방법론 연구

  • 서건창 (부산대학교 대학원 원자력공학전공, 한국수력원자력) ;
  • 반치범 (부산대학교 기계공학부)
  • Received : 2021.11.12
  • Accepted : 2022.06.08
  • Published : 2022.06.30
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Abstract

Currently, there is no technical standard and regulation for seismic analysis of non-nuclear safety piping. Accordingly, ASME Sec.III ND, a standards applied to safety class 3 piping, is applied. However, the technical standard applied for other than seismic analysis is ASME B31, which leads to controversy. In this study, the feasibility of applying ASME B31E was confirmed by reviewing rulescomparing technical standards, and evaluating piping allowable stress margins. The evaluation revealed that applying ASME B31.1 as a technical standard is too conservative compared to ASME Sec.III ND. On the other hand, ASME B31E (issued at the request of the industry) clearly presents the technical standards for seismic analysis of ASME B31 piping, and shows a similar level of conservatism compared to ASME Sec.III ND. It is expected to reduce the controversy over technical standards for seismic analysis of non-nuclear safety piping by applying ASME B31E.

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References

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