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http://dx.doi.org/10.5000/EESK.2003.7.4.031

Seismic Retrofitting of Cabinet Structures in Nuclear Power Plant  

이계희 (목포해양대학교 해양시스템공학부)
김재민 (여수대학교 건설환경공학부)
김상윤 (한국원자력안전기술원)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.7, no.4, 2003 , pp. 31-37 More about this Journal
Abstract
This paper presents the methodologies for seismic retrofitting of cabinet equipment which can be employed to resolve the USI A-46 problem related to seismic qualification of old nuclear power plant. To obtain accurate dynamic characteristics of a cabinet structure, three types of structural modeling are introduced and the their free vibration modes are compared. Three types of seismic retrofitting scenarios, such as 1) the installation of bracing, 2) installation of damper, 3) installation of tuned mass damper(TMD), are established and evaluated for the decrease of ICRS(In Cabinet Reponse Spectrum). In the cases of 1) & 2), since the retrofitted structures show larger ICRS than that of the original structure, the careful considerations are need in the application of these methods. Though the installation of TMD shows the best retrofitting result, the construction of analysis model that indicate the accurate vibration modes of real structure is estimated the essential step of this retrofitting method.
Keywords
USIA-46; USIA-46; cabinet structure; reduction of ICRS; seismic retrofitting;
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  • Reference
1 Computers & Structures, Inc., SAP2000/Nonlinear User's Manual - Version 7.0, 1997.
2 Kayaba damper 제품설명서, VETECH Korea, 2002.
3 조양희, 박형기, "원진지진계측캐비닛의 동특성분석시험", 대한토목학회논문집, Vol. 19, pp. 449-456, 1999.
4 서용표, 장정범, 유원진, "고리 3&4호기 지진감시계통 설계변경 관련 안전성기술검토결과보고서", 01 전력연-정002, 한국전력공사 전력연구원, 2001. 3.
5 김재민, "원전내진안전성 재평가 방법론 개발 : Part 3. GIP 내용 및 기술배경 분석과 GIP의 국내 적용 방안", 보고서 번호 KINS/HR-441, 한국원자력안전기술원 2002. 3.
6 김상윤, "USI A-46 관련 규제방향", 제5회 원자력안전기술정보회의, 1999. 12, 16-17 일.
7 EPRI Report NP-7147, "Seismic Ruggedness of Relays, Electric Power Research Institute," Palo Alto, CA, Prepared by ANCO Engineers, Inc., 1991. 2.
8 GL 87-02, "Verification of Seismic Adequacy of Mechanicaland Electrical Equipment in Operating Reactorrs,Unresolved Safety Issue(USl) A-46," USNRC 1987.
9 Seismic QuaIification Utility Group, "Generic Implementation Procedure(GIP) for Seismic Verification of Nuclear Power Plants Equipment," Revision 2A, Corrected 2/14/92, February 1993.
10 Smith, J. W, Vibration of Structures, Chapman and Hall, 1988.
11 고리1호기 지진감시설비 설계 및 운용방안 연구, 한국전력공사 기술연구원 연구보고서, KRC-92H-J01, 1993. 4.
12 유원진, 서용표, "원자력 발전소 기기의 내진검증을 위한 일반수행절차", 보고서번호 '01 전력연-단575, 한국전력공사 전력연구원, 2001. 11.