Fire Resistance Performance of Concrete Filled Square Steel Tube Columns with Fire Spray Protection

Kim, Hae-Soo; Kang, Jong

Journal of the Korean Society of Hazard Mitigation 2011;11(6):31-38.
Published online December 31, 2011.

내화뿜칠된 콘크리트 충전 각형강관기둥의 내화성능

김해수, 강종

Fire Resistance Performance of Concrete Filled Square Steel Tube Columns with Fire Spray Protection

Hae-Soo Kim, Jong Kang

Abstract

This study was carried out to compare with existing experimental results and to verify reliability on heat transfer analysis using parameters such as steel thickness and heating time in ABAQUS for evaluation of temperature distribution and fire protection performance according to cross-section location of concrete filled square steel tube column with fire spray protection when fire occurred. As a result, we noticed that the difference of temperature distribution for cross-section location was not so great and the change of steel thickness did not affect temperature distribution.

Key Words: Concrete Filled Square Steel Tube Column; Fire Spray Protection; Temperature Distribution; Transient Heat Transfer Analysis

요지

본 연구는 화재 발생시 내화뿜칠된 콘크리트 충전 각형강관기둥의 단면위치별 온도분포와 내화성능을 평가하기 위하여 강관두께 및 가열시간을 변수로 하여 ABAQUS를 이용한 열전달해석을 수행하여 신뢰성을 검증하고 기존의 실험결과와 비교분석하였다. 그 결과 단면위치별로 온도분포의 차이가 크지 않음을 알 수 있었으며, 강관두께의 변화는 온도분포에는 별다른 영향을 미치지 않음을 확인할 수 있었다.

핵심용어: 각형강관기둥; 내화뿜칠; 온도분포; 열전달해석