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http://dx.doi.org/10.5000/EESK.2007.11.6.069

Analysis of Seismic Fragility Improvement Effect of an Isolated Rotational Equipment  

Kim, Min-Kyu (한국원자력연구원 종합안전평가센터)
Ohtori, Yasuki (일본전력중앙연구소)
Choun, Young-Sun (한국원자력연구원 종합안전평가센터)
Choi, In-Kil (한국원자력연구원 종합안전평가센터)
Publication Information
Journal of the Earthquake Engineering Society of Korea / v.11, no.6, 2007 , pp. 69-78 More about this Journal
Abstract
In this study, for the evaluation of seismic safety of the isolated Emergency Diesel Generator (EDG) System more quantitatively, the seismic fragility analysis method were proposed. Using the proposed method, seismic fragility analysis performed and a seismic risk of EDG system was present. The fragility analysis performed not for an existing EDG system but also for an isolated EDG system which increases the seismic capacity. At first, numerical models for existing and isolated EDG system were constructed and seismic response analysis performed according to input seismic waves and peak ground accelerations. An uncertainty factors and failure modes of both fixed and isolated EDG system were assumed for fragility analysis. The HCLPF values were evaluated for the compare the improvement effect using the isolation system. As a result, the isolation system can make better the seismic fragility of EDG system, but the failure of isolation system was govern the behavior of whole system.
Keywords
Emergency diesel generator (EDG); seismic fragility analysis; seismic risk; HCLPF; isolation system;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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