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냉간성형 각형 CFT 기둥-보 수직유공판 앵커형 접합부의 인장내력식 제안
이광호(Lee Kwang-Ho),이인호(Lee In-Ho),원용안(Won Yong-Ahn),김강수(Kim Kang-Soo),최성모(Choi Sung-Mo) 대한건축학회 2007 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.27 No.1
A objective of this study is to suggest a type reinforcing a lower part of column to beam connections with an internal anchors to be considered a higher ability of construction and filling up concrete. A suggested shapes are a concrete filled tubular(CFT) column reinforcing plate with internal anchors and improves economy efficiency. In order to solve problem which lower part of connections have, its feature is that internal diaphragm welded has several internal anchors in plate. Thus if concrete is filling and it passes and fills up internal anchors, concrete passed ones reinforce composite effect of internal diaphragm and concrete by role such as nails. In order to analyse the initial strength, maximum internal force and mechanic performance, it compares with and analyses structural performance of internal diaphragm with several anchors through a test conducting an identified and simplified CFT column to beam flange and we propose tension design formulas.
고층건물 적용 설계사례를 통한 콘크리트충전 각형강관기둥의 실용화 가능성 평가
정상근(Jung Sang-Keun),송경철(Song Kyung-Chul),박수희(Park Su-Hee),원용안(Won Yong-Ahn),최성모(Choi Sung-Mo) 대한건축학회 2009 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.29 No.1(구조계)
The purpose of this study is to review, examine and analyze the cases of employing CFT columns for high-rise buildings in Korea and overseas in order to investigate the feasibility of employing the columns for the construction of high-rise buildings. For this, fire-resistance of non-coated square CTF columns was examined for modeling high-rise buildings (10 stories & 50 stories). Fire-resistance of the buildings for which non-coated square CFT columns were used was evaluated using the fire-resistance design equations derived from the previous studies. This study showed that the columns on the upper floors of the 50-story-skyscraper could meet the legal requirement of 3-hour-fire resistance without fireproofing coating. And, it was found that reinforcing the fire-resistance of concrete or employing fireproofing coating outside the columns would satisfy the legal requirement of 1-hour and 2-hour fire-resistance for the middle floors and lower floors, respectively. As concrete strength increases, fire-resistance improves and the possibility of satisfying 3-hour-requirement without coating increases. As span length increases, the axial load ratio on the column increases and fire-resistance deteriorates, which means that the possibility of 3-hour-fireproofing without coating diminishes. Consequently, it is needed to restrain axial load ratio through the proper measures in structural design.
정희균(Jeong Hui-Gyun),김선희(Kim Sun-Hee),원용안(Won Yong-Ahn),최성모(Choi Sung-Mo) 대한건축학회 2011 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.31 No.2(구조계)
Guarantee of CFT Column Fire resistance is very important about activity of CFT application. Europe, the United States, Japanese, which it is applying to CFT, already progress multi researches regarding the method it will be able to improve the fire resistance of CFT. This method improve fire resistance is coating to use fire resistance relation material outside the CFT columns application and activity than previously. We contribute to experiments and research about fire resistance of CFT column by considering advanced research.