고강도콘크리트를 충전한 CFT 기둥의 내화성능 평가에 관한 실험적 연구

다국어 초록 (Multilingual Abstract)

CFT(Concrete filled steel tube, below CFT) is an excellent internal force and deformation capacity. But it is difficult to evaluate the fire resistant performance of the CFT. Because two main materials such as steel tube and concrete are combined as one. Also, the case of high strength CFT is feared that spalling occur inside. In this study, types of CFT(column) specimens were four factors which were strength of concrete, slenderness ratio of steel tube, fiber using, fire protective coating and then CFT(column) specimens were exposed to heating controlled as closely as possible the ISO-834 standard fire curve. Also, test results tried to analyze internal temperature through nonlinear transient heat flow analysis.
Test results showed relative values of CFT specimens and analysis but surface parts were excessive values of analysis. Moreover, fire-resist design of CFT column comes to the conclusion that is sufficient consideration. Because results tend to indicate different properties.

목차 (Table of Contents)

• Abstract
• 1. 서론
• 2. 실험 계획 및 방법
• 3. 시험결과 및 검토
• 4. CFT기둥의 비정상 온도분포해석
• 5. 결론
• 참고문헌

참고문헌 (Reference)

1 오숙연, "화재시 무내화피복 CFT기둥의 온도분포에 관한 이 론적 고찰" 서울시립대학교 2000

2 한병찬, "온도의존성 열특성 계수를 고려한 화재에 노출된 철근콘크리트 골조의 해석적 연구" 한국콘크리트학회 19 (19): 283-292, 2007

3 김무한, "섬유종류 및 혼입량에 따른 고성능콘크리트의 폭 열저감에 관한 실험적 연구" 81-85, 2005

4 岡田忠義, "築構造用耐火鋼材を使用したコンクリート充塡鋼管柱の耐火性能" GBRC 18-23, 1992

5 作本好文, "建築構造用耐火鋼材を耐火性能に關する實驗的硏究" 149-158, 1992

6 한국표준협회, "KS F 2257, 건축구조부분의 내화시험 방법,"

7 "ISO834-7, Fire Resistance Test, Element of Building Const ruction, Part 7; specific requirement for column, ISO"

8 최성모, "CFT 구조기술 개발 및 적용사례" 97-105, 2006

9 Kim, Moo Han, "An Experimental Study on the Engi neering Properties of deteriorated Concrete by Fire Damage" 588-595, 2004