화재에 노출된 내부보강 조립식 냉간성형 대형합성기둥의 잔존내력에 대한 연구

서지정보

ㆍ발행기관 : 한국복합신소재구조학회 ㆍ수록지정보 : 복합신소재구조학회 논문집 / 9권 / 1호
ㆍ저자명 : 민정기, 염경수, 최성모

목차

1. 서 론
2. 연구동향
2.1 기둥의 내화성능 평가기준
2.2 콘크리트충전 합성기둥 내화성능 연구
3. 열전달 해석모델 검증
4. 잔존내력 분석을 위한 열전달해석
4.1 열전달해석 계획
4.2 해석 결과
4.3 화재시 잔존내력
4.4 철근의 영향
5. 결 론
REFERENCES

영어 초록

This study develops numerical model of mega composite columns in fire and investigates the residual areas using 500℃ isotherm method and residual capacity of mega composite columns after 3 hours. In order to perform heat transfer analysis, thermal properties of steels and concrete were adopted from Eurocodes. In addition to, the temperature distributions of composite columns with respect to fire tests were compared with numerical analysis results. As a result, residual capacity of mega composite column with 1m width remained more than 45%. The residual capacity of mega composite column was only increased to 2.3∼2.6% with the use of additional rebars.

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