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황규재,여인환,안재홍,Hwang, Kyu-Jae,Yeo, In-Hwan,An, Jae-Hong 大韓建築學會 2014 大韓建築學會論文集 : 構造系 Vol.30 No.6
The purpose of this study is to determine the fire resistant axial load ratio for concrete columns as a concept of fire stress ratio which is the residual strength ratio of structural members when exposed to specific fire to the ordinary cold strength. It is necessary to set the typical cross section and boundary condition of concrete column member for reasonable evaluation of the concrete structural members. As a result of the fire resistance test for the variables corresponding to the size of section, axial force ratio and slenderness ratio based on the intact axial force with no eccentricity, it is considered that 0.5 and 0.45 axial forces are proper for less than 17 slenderness ratio and over 17 slenderness ratio respectively.
열전달 해석을 이용한 CFT기둥의 내화피복두께 설정에 관한 연구
황규재(Hwang, Kyu-Jae),윤성기(Yoon, Sung-Kee) 대한건축학회 2013 大韓建築學會論文集 : 構造系 Vol.29 No.6
The purpose of this research is to establish the fire protection thickness of concrete-filled columns(CFT) by finite element results using ABAQUS package program. This paper presents the results of a parametric study using transient heat transfer analysis, and compare these results with the existing results to check the accuracy of the proposed parametric studies. As a result of this study, regarding fire resistance performance depending on variation of thickness in fire protection, in case of non fire protection regardless of shape of steel tube, its rising temperature had shown greatly, compared with fire resistance criteria and its role as a fire resistance structure was not satisfied.
열응력 해석을 이용한 H형강 기둥의 하중비에 따른 한계온도 분석에 관한 연구
황규재(Hwang, Kyu-jae),안재권(Ahn, Jae-kwon),조규환(Cho, Gyu-hwan),여인환(Yeo, In-hwan) 한국방재학회 2019 한국방재학회논문집 Vol.19 No.7
본 연구의 목적은 성능적 내화설계를 기반으로 한 강구조 기둥부재의 내화성능 평가를 최종 목표로 강구조 기둥부재를 대상으로 한 열응력 해석을 통한 내화성능평가로 단면형상, 높이 및 하중비를 변수로 부재의 내화성능 변화를 분석한다. 그리고 기둥부재의 압축강도를 기준으로 하중비에 따른 한계온도를 산정하였다. 열응력 해석 결과, 각종 변수에 따른 강구조 압축부재의 한계온도를 제시하였다. The purpose of this study is to evaluate the fire resistance of steel structural members based on fire-resistant design and heat load tests. The limiting temperature was calculated for each case of load ratio based on the strength of the compression member. Based on the thermal stress analysis, the limiting temperature of the steel structural compression member was obtained as a function of the sectional shape, height, and load ratio.
재하가열조건하에서 철근콘크리트 보의 화재응력 저감도 분석 연구
황규재(Hwang, Kyu-jae),여인환(Yeo, In-hwan) 한국방재학회 2017 한국방재학회논문집 Vol.17 No.1
본 연구의 목적은 성능적 내화설계를 기반으로 한 철근콘크리트 보부재의 내화성능 평가를 최종 목표로 철근콘크리트 보부재를 대상으로 한 재하가열실험을 통한 내화성능평가로 적정 화재응력비를 도출하여 성능설계를 위한 기초 자료로 활용하고자 하는데 있다. 재하가열실험 결과, 200단면의 경우 0.6미만, 250단면의 경우 0.9의 화재응력비를 확보하여야 안정적인 내화성능을 확보할 수 있다고 판단하였다. This study, to evaluate the technology of the fire resistance design of Reinforced Concrete beams based on fire resistance performance design, was suppose to use as basic data for performance design through a measure of temperature using heat transfer analysis of the Reinforced Concrete beams as parameter is the fire stress ratio. The temperature load were imposed on beams. As a result of this study, 0.6 and 0.9 of fire stress ratio can be ensured that the fire resistance performance was considered satisfactory.
황규재(Hwang, Kyu-Jae),여인환(Yeo, In-Hwan),안재홍(An, Jae-Hong) 대한건축학회 2014 大韓建築學會論文集 : 構造系 Vol.30 No.6
The purpose of this study is to determine the fire resistant axial load ratio for concrete columns as a concept of fire stress ratio which is the residual strength ratio of structural members when exposed to specific fire to the ordinary cold strength. It is necessary to set the typical cross section and boundary condition of concrete column member for reasonable evaluation of the concrete structural members. As a result of the fire resistance test for the variables corresponding to the size of section, axial force ratio and slenderness ratio based on the intact axial force with no eccentricity, it is considered that 0.5 and 0.45 axial forces are proper for less than 17 slenderness ratio and over 17 slenderness ratio respectively.