논문 상세보기
The seismically isolated nuclear power plants shall be designed for design basis earthquake (DBE) and considered to ensure safety against beyond design basis earthquake (BDBE). In order to limit the excessive displacement of the seismic isolation system of the seismically isolated structure, the moat is installed at a certain distance from the upper mat supporting the superstructure. This certain distance is called clearance to stop (CS) and is calculated from the 90th percentile displacement of seismic isolation system subjected to BDBE. For design purposes, the CS can be obtained simply by multiplying the median displacement of the seismic isolation system against DBE by scale factor with a value of 3. The DBE and BDBE used in this study were generated by using 30 sets of artificial earthquakes corresponding to the nuclear standard design spectrum. In addition, latin hyper cube sampling was applied to generate 30 sets of artificial earthquakes corresponding to maximum - minimum spectra. For the DBE, the median displacement and the 99th percentile displacement of the seismic isolation system were calculated. For the BDBE, the suitability of the scale factor was assessed after calculating the 90th percentile displacement of the seismic isolation system.
1. 서 론
2. 납-고무받침을 적용한 원전구조물의 지진해석모델
2.1 원전구조물 지진해석 모델링
2.2 면진장치 모델링
2.3 입력지진의 특성
2.4 면진장치 변위응답의 확률분포
3. 면진장치의 변위응답에 대한 확률론적 분석
3.1 설계기준지진(DBE)에 대한 99 백분위수 변위의 평가
3.2 설계초과지진(BDBE)에 대한 90 백분위수 변위의 평가
4. 결 론
감사의 글
REFERENCES
