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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.28 No.3
- 발행연도
- 2018.1
- 수록면
- 267 - 278 (12page)
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초록· 키워드
오류제보하기
Structures may need retrofitting as a result of design and calculation errors, lack of proper implementation, post-construction change in use, damages due to accidental loads, corrosion and changes introduced in new editions of construction codes. Retrofitting helps to compensate weakness and increase the service life. Fiber Reinforced Polymer (FRP) is a modern material for retrofitting steel elements. This study aims to investigate the effect of deficiency location on the axial behavior of compressive elements of Circular Hollow Section (CHS) steel short columns. The deficiencies located vertically or horizontally at the middle or bottom of the element. A total of 43 control column and those with deficiencies were investigated in the ABAQUS software. Only 9 of them tested in the laboratory. The results indicated that the deficiencies had a significant effect on the increase in axial deformation, rupture in deficiency zone (local buckling), and decrease in ductility and bearing capacity. The damages of steel columns were responsible for resistance and stiffness drop at deficiency zone. Horizontal deficiency at the middle and vertical deficiency at the bottom of the steel columns were found to be the most critical. Using Carbon Fiber Reinforced Polymer (CFRP) as the most effective material in retrofitting the damaged columns, significantly helped the increase in resistance and rupture control around the deficiency zone.
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등록된 정보가 없습니다.
참고문헌 (20)
참고문헌 신청
Bambach, M.R. / 2010 / Axial capacity and crushing behavior of metal-fiber square tubes - Steel, stainless steel and aluminum with CFRP / Compos. Part B: Eng. 41(7):550~559
Bambach, M. / 2007 / Plastic mechanism analysis of steel SHS strengthened with CFRP under large axial deformation / Thin-Wall. Struct. 45(2):159~170
Ghaemdoust, M.R. / 2016 / Structural behaviors of deficient steel SHS short columns strengthened using CFRP / Constr. Build. Mater. 126:1002~1011
M. Gholami / 2016 / Performance of steel beams strengthened with pultruded CFRP plate under various exposures / Steel and Composite Structures, An International Journal 20(5):999~1022
Haedir, J. / 2011 / Design of short CFRP-reinforced steel tubular columns / J. Constr. Steel Res. 67(3):497~509
Bambach, M. / 2007 / Plastic mechanism analysis of steel SHS strengthened with CFRP under large axial deformation / Thin-Wall. Struct. 45(2):159~170
Ghaemdoust, M.R. / 2016 / Structural behaviors of deficient steel SHS short columns strengthened using CFRP / Constr. Build. Mater. 126:1002~1011
M. Gholami / 2016 / Performance of steel beams strengthened with pultruded CFRP plate under various exposures / Steel and Composite Structures, An International Journal 20(5):999~1022
Haedir, J. / 2011 / Design of short CFRP-reinforced steel tubular columns / J. Constr. Steel Res. 67(3):497~509
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