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Journal of Korean Institute of Fire Science and Engineering 2009;23(4):59-66.
Published online August 31, 2009.
스터드커넥터의 내화성능에 관한 연구
김성배, 한상훈, 최승관
1(주)센구조연구소
2FireSERT School the Built Environment University of Ulster
3FireSERT School the Built Environment University of Ulster
Study on Fire Performance of Stud Connectors
Kim Sung-Bae, Han Sang-Hoon, Choi Seng-Kwan
1(주)센구조연구소
2FireSERT School the Built Environment University of Ulster
3FireSERT School the Built Environment University of Ulster
요약
본 연구는 합성구조에 사용되는 스터드커넥터의 화재시 성능에 대한 연구이다. 스터드커넥터는 전단연결재로 가장 폭넓게 사용되고 있으며, 콘크리트와 강재를 일체화시켜 합성 성능을 확보한다. 스터드커넥터에 대한 상세 내화성능은 아직 명확한 자료가 없으며, 향후 성능설계에서 무피복 합성보 등에 대한 설계 자료로 요구 된다. 본 실험의 스터드커넥터 성능시험은 푸시 아웃 실험을 변형하여 특수 전기로와 결합 ISO 표준온도곡선을 기본으로 거동 성능실험을 수행하였으며, 화재 조건의 파괴 형상을 기반으로 성능 분석 방법을 제안하였다.
Abstract
This research aims to conduct a pilot study for the in-fire performance of headed studs, commonly used in composite structures over the world. The robustness of the shear studs in fire appears to be a key element to govern the composite behaviour after a sudden local instability developed in structures such as trusses and cellular beams. In order to experimentally evaluate the residual strength of studs in fire, the standard push-out test was modified for a half of the original set-up to be equipped with a furnace. The adjustments allow the steel section to have a 3-sided exposure against fire. Under the Standard ISO fire, the modified push-out tests under loading were conducted to identify the failure mechanism of the studs in relation to temperature developments.
Key Words: Fire performance, Stud connectors, Composite beam, Push - out test


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