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Fire Sci. Eng. > Volume 31(4); 2017 > Article
Fire Science and Engineering 2017;31(4):65-70.
DOI: https://doi.org/10.7731/KIFSE.2017.31.4.065    Published online August 31, 2017.
일반배관용 스테인리스강관에 대한 프레스식 관이음쇠의 내진성능에 관한 연구
백열선, 남준석
1김천대학교 소방학과
2한국소방산업기술원 소방기술연구소
A Study on the Seismic Protection Performance of Press Fittings for Light Gauge Stainless Steel Pipes
Baek Yeal-Sun, Nam Jun-Seok
1Department of Fire Protection Engineering, Gimcheon University
2R&D Laboratory, Korea Fire Institute
요약
본 연구는 최근 수계소화설비 배관에 적용되고 있는 스테인리스 강관용 프레스식 관이음쇠에 대한 내진성능 연구를 수행한다. 연구를 위한 설비의 구성은 NFPA 13의 배관연결방법으로 하였다. 배관의 허용변위량은 건축구조기준에서 제시한 허용량으로 하였고, 반복회수는 10회로 하였다. 실험 후 배관의 Von-mises 응력은 허용응력의 2.48, 1.25배로 NPPs Allowable Stress for Level D service loading의 "허용응력의 3배"인 기준 보다는 적게 나타났다. 따라서 프레스식 관이음쇠는 내진성능을 갖추고 있는 것으로 판단 할 수 있다.
Abstract
The seismic performance of press fittings is studied, which is one of the weldless joints of stainless steel pipe used in the water piping of recent fire protection system. The piping of this study was constructed based on the piping connection reference of NFPA 13. The permissible displacement of the piping was set as the allowed amount which is given in the Building Structure Standard, and the measurements were repeated 10 times. The Von-mises stress of the piping was 2.48 and 1.25 times of the allowed amount of stress, which was less than the standard, noted three times on the NPPs Allowable Stress for Level D service loading. Therefore, the press fittings shows enough seismic performance.
Key Words: Seismic Performance, Press Joint, Groove Joint


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