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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.27 No.1
- 발행연도
- 2021.1
- 수록면
- 41 - 54 (14page)
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초록· 키워드
오류제보하기
This paper introduced three new strengthening systems for isolated footings: BFRP wrapping system, CFRP wrapping system, and steel jacketing system. The proposed systems are more practical than the current traditional methods, which involves installing many dowel bars and splicing reinforcing steels to join new and old concrete segments. In the proposed three new systems, BFRP wraps, CFRP wraps, or steel jackets are installed on the exterior surface of the enlarged footing, with construction adhesive or a few steel dowels being applied to the contact surfaces. To investigate the effectiveness of three systems, forty-four models were constructed in ABAQUS, with different parameters being considered. All footings investigated failed in punching shear, including original and retrofitted footings. According to FEA results and parametric studies, the three strengthening systems were capable of improving the punching shear resistance of footings. By introducing a new factor η, the punching shear equation in Eurocode 2 was modified to predict the punching shear resistances of the strengthened footings. A linear formula was developed to present the relationship between the new factor η and the investigated parameters.
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참고문헌 (37)
참고문헌 신청
AASHTO / 2012 / LRFD Bridge Design Specifications / American Association of State Highway and Transportation Officials
2006 / ABAQUS Documentation Version 6.6 , 4.5.2 Damaged Plasticity Model for Concrete and Other Quasi-Brittle Materials / Dassault Systèmes
Bassam Q. Abdulrahman / 2017 / Experimental and numerical investigation into strengthening flat slabs at corner columns with externally bonded CFRP / Construction and Building Materials 139:132~147
2014 / ACI 318, Building Code Requirements for Structural Concrete and Commentary / American Concrete Institute
Agarwal, B.D. / 1990 / Analysis And Performance Of Fiber Composites / Wiley
2006 / ABAQUS Documentation Version 6.6 , 4.5.2 Damaged Plasticity Model for Concrete and Other Quasi-Brittle Materials / Dassault Systèmes
Bassam Q. Abdulrahman / 2017 / Experimental and numerical investigation into strengthening flat slabs at corner columns with externally bonded CFRP / Construction and Building Materials 139:132~147
2014 / ACI 318, Building Code Requirements for Structural Concrete and Commentary / American Concrete Institute
Agarwal, B.D. / 1990 / Analysis And Performance Of Fiber Composites / Wiley
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