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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.32 No.1
- 발행연도
- 2019.1
- 수록면
- 127 - 139 (13page)
이용수
초록· 키워드
오류제보하기
Bridges, offshore oil platforms and other infrastructures usually require at some point in their service life rehabilitation for reasons such as aging and corrosion. This study explores the application of adhesively bonded CFRP patches in repair of corroded circular hollow sectional (CHS) steel beams. An experimental program involving three-point bending tests was conducted on intact, corroded, and repaired CHS beams. Meso-scale finite element (FE) models of the tested beams were developed and validated by the experimental results. A parametric study using the validated FE models was performed to examine the effects of different CFRP patch parameters, including patch dimensions, number of plies and stacking sequence, on efficiency of the repair system. Results indicates that the corrosion reduced elastic stiffness and flexural strength of the undamaged beam by 8.9 and 15.1%, respectively, and composite repair recovered 10.7 and 18.9% of those, respectively, compared to undamaged beam. These findings demonstrated the ability of CFRP patch repair to restore full bending capacity of the corroded CHS steel beam. The parametric study revealed that strength and stiffness of the repaired CHS beam can be enhanced by changing the fiber orientations of wet composite patch without increasing the quantity of repair materials.
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참고문헌 (55)
참고문헌 신청
Abdullah, H. A. / 2004 / Repair of steel composite beams with carbon fiber-reinforced polymer plates / J. Compos. Constr 8(2):163~172
ACI(American Concrete Institute) / 2007 / Report on fiber reinforced polymer (FRP) reinforcement for concrete structures
Ahmed, W. A. Z. / 2015 / Finite element analysis of square CFST beam strengthened by CFRP composite material / Thin-Wall. Struct 96:348~358
Ahmed, W. A. Z. / 2017 / Rehabilitation and strengthening of high-strength rectangular CFST beams using a partial wrapping scheme of CFRP sheets : Experimental and numerical study / Thin-Wall. Struct 114:80~91
Akbar, I. / 2010 / Derivation of the bond-slip characteristics for FRP plated steel members / J. Constr. Steel Res 66:1047~1056
ACI(American Concrete Institute) / 2007 / Report on fiber reinforced polymer (FRP) reinforcement for concrete structures
Ahmed, W. A. Z. / 2015 / Finite element analysis of square CFST beam strengthened by CFRP composite material / Thin-Wall. Struct 96:348~358
Ahmed, W. A. Z. / 2017 / Rehabilitation and strengthening of high-strength rectangular CFST beams using a partial wrapping scheme of CFRP sheets : Experimental and numerical study / Thin-Wall. Struct 114:80~91
Akbar, I. / 2010 / Derivation of the bond-slip characteristics for FRP plated steel members / J. Constr. Steel Res 66:1047~1056
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