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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.22 No.1
- 발행연도
- 2016.1
- 수록면
- 63 - 77 (15page)
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초록· 키워드
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Top-down construction is a construction technique in which pit excavation and structure construction are conducted simultaneously. Reducing construction time and minimizing noise and vibration which affect neighboring structures, the technique is widely employed in constructing downtown structures. While H-steel columns have been commonly used as core columns, concrete filled steel tube (CFT) columns are at the center of attention because the latter have less axial directionality and greater cross-sectional efficiency than the former. When compared with circular CFT columns, square CFT columns are more easily connected to the floor structure and the area of percussion rotary drilling (PRD) is smaller. For this reason, square CFT columns are used as core columns of concrete encased and filled square (CET) columns in underground floors. However, studies on the structural behavior and concrete stress transfer of CET columns have not been conducted. Since concrete is cast according to construction sequence, checking the stress of concrete inside the core columns and the stress of covering concrete is essential. This paper presents the results of structural tests and analyses conducted to evaluate the usability and safety of CET columns in top-down construction where CFT columns are used as core columns. Parameters in the tests are loading condition, concrete strength and covering depth. The compressive load capacity and failure behavior of specimens are evaluated. In addition, 2 cases of field application of CET columns in underground floors are analyzed.
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참고문헌 (15)
참고문헌 신청
AISC / 2010 / Steel Construction Manual / American Institute of Steel Construction Ins
Ernesto Fenollosa / 2015 / Elastic-plastic formulation for concrete encased sections interaction diagram tracing / Steel and Composite Structures, An International Journal 19(4):861~876
KBC / 2009 / Korean Building Code / Architectural Institute of Korea
김병호 / 2011 / 축력과 반복수평력을 받는 콘크리트 충전 내진 각형강관 기둥의 휨거동 특성 / 한국강구조학회 논문집 23(3):317~326
Kim, S.H. / 2013 / Evaluation of the fire resistance performance of interior anchor type CFT columns through loaded heating test / Int. J. High-Rice Build. 2(1):39~48
Ernesto Fenollosa / 2015 / Elastic-plastic formulation for concrete encased sections interaction diagram tracing / Steel and Composite Structures, An International Journal 19(4):861~876
KBC / 2009 / Korean Building Code / Architectural Institute of Korea
김병호 / 2011 / 축력과 반복수평력을 받는 콘크리트 충전 내진 각형강관 기둥의 휨거동 특성 / 한국강구조학회 논문집 23(3):317~326
Kim, S.H. / 2013 / Evaluation of the fire resistance performance of interior anchor type CFT columns through loaded heating test / Int. J. High-Rice Build. 2(1):39~48
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