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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.23 No.1
- 발행연도
- 2017.1
- 수록면
- 87 - 94 (8page)
이용수
초록· 키워드
오류제보하기
Steel structures often require strengthening due to the increasing life loads, or repair caused by corrosion or fatigue cracking. Carbon Fiber Reinforced Polymers (CFRP) is one of the materials used to strengthen steel structures. Most studies on strengthening steel structures have been carried out on steel beams and steel columns under centric compression load. No independent article, to the author's knowledge, has studied the effect of CFRP strengthening on steel columns under eccentric compression load, and it seems that there is a lack of understanding on behavior of CFRP strengthening on steel columns under eccentric compression load. However, this study explored the use of adhesively bonded CFRP flexible sheets on retrofitting square hollow section (SHS) steel columns under the eccentric compression load, using numerical investigations. Finite Element Method (FEM) was employed for modeling. To determine ultimate load of SHS steel columns, eight specimens with two types of section (Type A and B), strengthened using CFRP sheets, were analyzed under different coverage lengths, the number of layers, and the location of CFRP composites. Two specimens were analyzed without strengthening (control) to determine the increasing rate of the ultimate load in strengthened steel columns. ANSYS was used to analyze the SHS steel columns. The results showed that the CFRP composite had no similar effect on the slender and stocky SHS steel columns. The results also showed that the coverage length, the number of layers, and the location of CFRP composites were effective in increasing the ultimate load of the SHS steel columns.
목차
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참고문헌 (17)
참고문헌 신청
Abdollahi Chakand, N. / 2013 / Experimental and theoretical investigation on torsional behavior CFRP strengthened square hollow steel section / Thin-Wall. Struct 68:135~140
2002 / ACI Committee 440, Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures; ACI440.2R-02 / American Institute
Al Zand, A. W. / 2015 / Finite element analysis of square CFST beam strengthened by CFRP composite material / Thin-Wall. Struct 96:348~358
Al-Zubaidy, H. / 2013 / Finite element modelling of CFRP/steel double strap joints subjected to dynamic tensile loadings / Compos. Struct 99:48~61
Bambach, M. R. / 2009 / Axial capacity and design of thin-walled steel SHS strengthened with CFRP / Thin-Wall. Struct 47(10):1112~1121
2002 / ACI Committee 440, Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures; ACI440.2R-02 / American Institute
Al Zand, A. W. / 2015 / Finite element analysis of square CFST beam strengthened by CFRP composite material / Thin-Wall. Struct 96:348~358
Al-Zubaidy, H. / 2013 / Finite element modelling of CFRP/steel double strap joints subjected to dynamic tensile loadings / Compos. Struct 99:48~61
Bambach, M. R. / 2009 / Axial capacity and design of thin-walled steel SHS strengthened with CFRP / Thin-Wall. Struct 47(10):1112~1121
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