국내 지진동 특성에 대한 기기 용접 정착부의 비탄성에 너지 흡수계수를 고려한 지진취약도 평가

서지정보

ㆍ발행기관 : 한국지진공학회 ㆍ수록지정보 : Jorunal of the Earthquake Engineering Society of Korea / 27권 / 1호
ㆍ저자명 : 임승현, 김건규, 최인길, 곽신영

목차

1. 서 론
2. 용접 정착부의 비탄성에너지 흡수계수
3. 캐비닛의 내진성능
3.1 대상 기기 및 입력지진
3.2 용접에 의해 정착된 캐비닛의 지진취약도 곡선
3.3 용접 정착부의 CASE별 비교ㆍ분석
3.4 용접 정착부와 확장형 앵커 정착부에 대한 내진성능 비교 및논의
4. 결 론
감사의 글
REFERENCES

영어 초록

In Korea, most nuclear power plants were designed based on the design response spectrum of Regulatory Guide 1.60 of the NRC. However, in the case of earthquakes occurring in the country, the characteristics of seismic motions in Korea and the design response spectrum differed. The seismic motion in Korea had a higher spectral acceleration in the high-frequency range compared to the design response spectrum. The seismic capacity may be reduced when evaluating the seismic performance of the equipment with high-frequency earthquakes compared with what is evaluated by the design response spectrum for the equipment with a high natural frequency. Therefore, EPRI proposed the inelastic energy absorption factor for the equipment anchorage. In this study, the seismic performance of welding anchorage was evaluated by considering domestic seismic characteristics and EPRI's inelastic energy absorption factor. In order to reflect the characteristics of domestic earthquakes, the uniform hazard response spectrum (UHRS) of Uljin was used. Moreover, the seismic performance of the equipment was evaluated with a design response spectrum of R.G.1.60 and a uniform hazard response spectrum (UHRS) as seismic inputs. As a result, it was confirmed that the seismic performance of the weld anchorage could be increased when the inelastic energy absorption factor is used. Also, a comparative analysis was performed on the seismic capacity of the anchorage of equipment by the welding and the extended bolt.

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