논문 상세보기
pp.46-52
Composite columns are increasingly used due to the construction of super-tall buildings and large-scale buildings. Studies on the shapes of and construction technologies for structural members using steel tubes are being conducted actively. Welded built-up CFT columns previously developed and commercialized by the authors of this study (ACT-1 columns) are structurally stable and economically efficient. However, the 1m limit in the width of the columns and their small interior spaces impose a difficulty in installing reinforcing materials and thus deteriorate the ease and efficiency with which they are constructed. This study suggests placing thick plates at the centers of the surfaces of the existing ACT-1 column and installing a binding frame (binding frames) at the central thick plates to enhance the integrity and resist lateral pressure caused by concrete casting. Finite element analysis was conducted with the variables of the number and cross-sectional size of the binding frame and the cross-sectional size of the steel tube to estimate the structural behavior of the steel tubes. Hydraulic tests were conducted to analyze load-displacement relations and identify the influence of the binding frames on the relations. The variables in the tests were the number and cross-sectional size of the binding frame, welding details, column joint and the cross-sectional size of the steel tube
1.1 연구 배경
1.2 합성메가기둥의 구성과 연구목적
2. 합성메가기둥의 단면구성과바인딩프레임의 역할
2.1 합성메가기둥의 구성
2.2 판폭두께비
2.3 중앙후판과 모서리단면의 용접
2.4 단면구속용 바인딩프레임
2.5 바인딩프레임의 간격과 크기 결정
2.6 소 결
3. 콘크리트충전 영향평가를 위한 수압실험
3.1 실험계획
3.2 실험체 세팅 및 가력방법
3.3 재료시험
3.4 수압실험 결과
3.5 소 결
4. 결 론
감사의 글
REFERENCES
