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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 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.77 No.6
- 발행연도
- 2021.1
- 수록면
- 705 - 720 (16page)
이용수
초록· 키워드
오류제보하기
Reinforced concrete (RC) columns are the primary type of vertical support used in building structures that sustain vertical loads. However, their strength may be insufficient due to fire, earthquake or volatile environments. The load demand may be increased due to new functional usages of the structure. The deformability of concrete columns can be greatly reduced under high axial load conditions. In response, a novel steel encasement that distinguishes from the traditional steel jacketing that is assembled by welding or bolt is developed. This novel strengthening method features easy installation and quick strengthening because direct fastening is used to connect the four steel plates surrounding the column. This new connection method is usually used to quickly and stably connect two steel components by driving high strength fastener into the steel components. The connections together with the steel plates behave like transverse reinforcement, which can provide passive confinement to the concrete. The confined column along with the steel plates resist the axial load. By this way, the axial load capacity and deformability of the column can be enhanced. Eight columns are tested to examine the reliability and effectiveness of the proposed method. The effects of the vertical spacing between adjacent connections, thickness of the steel plate and number of fasteners in each connection are studied to identify the critical parameters which affect the load bearing performance and deformation behavior. Lastly, a theoretical model is proposed for predicting the axial load capacity of the strengthened RC columns.
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등록된 정보가 없습니다.
참고문헌 (39)
참고문헌 신청
Adam, J. M. / 2009 / Axially loaded RC columns strengthened by steel caging : Finite element modeling / Constr. Build. Mater. 23(6):2265~2276
2014 / ASCE 41-13 , Seismic Evaluation and Retrofit of Existing Buildings / American Society of Civil Engineers
Attard, M. M. / 1996 / Stress-strain relationship of confined and unconfined concrete / ACI Mater. J. 93(5):432~442
Campione, G. / 2012 / Strength and ductility of RC columns strengthened with steel angles and battens / Constr. Build. Mater 35:800~807
Campione, G. / 2017 / Frictional effects in structural behavior of no-endconnected steel-jacketed RC columns: experimental results and new approaches to model numerical and analytical response / J. Struct. Eng. 143(8):04017070
2014 / ASCE 41-13 , Seismic Evaluation and Retrofit of Existing Buildings / American Society of Civil Engineers
Attard, M. M. / 1996 / Stress-strain relationship of confined and unconfined concrete / ACI Mater. J. 93(5):432~442
Campione, G. / 2012 / Strength and ductility of RC columns strengthened with steel angles and battens / Constr. Build. Mater 35:800~807
Campione, G. / 2017 / Frictional effects in structural behavior of no-endconnected steel-jacketed RC columns: experimental results and new approaches to model numerical and analytical response / J. Struct. Eng. 143(8):04017070
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