Journal of the Computational Structural Engineering Institute of Korea (한국전산구조공학회논문집)

Computational Structural Engineering Institute of Korea (한국전산구조공학회)
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Life-Cycle Analysis of Nuclear Power Plant with Seismic Isolation System

면진장치 적용을 고려한 원전구조물 생애주기 분석

  • Kim, Sunyong (Plant Construction & Engineering Lab., Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.) ;
  • Lee, Hong-Pyo (Plant Construction & Engineering Lab., Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.) ;
  • Cho, Myung-Sug (Plant Construction & Engineering Lab., Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd.)
  • 김선용 (한국수력원자력(주) 중앙연구원) ;
  • 이홍표 (한국수력원자력(주) 중앙연구원) ;
  • 조명석 (한국수력원자력(주) 중앙연구원)
  • Received : 2013.10.28
  • Accepted : 2013.12.03
  • Published : 2013.12.31
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Abstract

In order to extend the service life of a nuclear power plant(NPP) ensuring the structural safety, effective and efficient management of NPP considering structural deteriorations and various natural hazard risks has been treated as a significant tool(IAEA 1998). The systemic efforts is required to prevent the potential loss of NPPs resulting from the natural hazard including earthquakes, hurricane and flooding since the Fukushima accident. Earthquake risk of building structures can be mitigated through appropriate seismic isolation system installation. It has been known that a seismic isolation system can lead to reduction of the deleterious effect on ground motion induced by earthquakes, and structural safety can be improved. In this paper, the NPP life-cycle management is reviewed. Furthermore, effect of seismic isolation on the NPP life-cycle cost analysis with earthquake, and cost-benefit analysis in terms of life-cycle cost when applying the seismic isolation systems to NPP are introduced.

본 논문에서는 면진시스템이 원전에 적용될 경우 원전구조물의 생애주기 성능에 미치는 영향을 소개한다. 최근 내진설계와 더불어 강진발생 예상 지역에 적용을 목적으로 개발되는 면진시스템은 구조물을 장주기화하여 응답가속도를 줄이고 상대변위를 늘려줌으로써 구조물의 안전성을 증진시키는 것으로 알려져 있다. 따라서, 구조물의 안전성이 중요시되는 원전구조물에 면진시스템을 적용하기 위한 연구가 국내에서 진행 중에 있다. 본 연구에서는 원전구조물의 생애주기 성능분석에 있어서 특징을 분석하고, 면진시스템이 적용될 경우 원전구조물의 생애주기성능에 있어서 미치는 영향을 평가함으로써, 도출된 결과를 면진시스템 적용의 정량적인 타당성 평가에 활용할 수 있다.

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