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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.25 No.3
- 발행연도
- 2017.1
- 수록면
- 375 - 388 (14page)
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초록· 키워드
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This paper presents a combined experimental, numerical, and analytical study on elliptical concrete-filled steel tubular (E-CFT) and rebar-stiffened elliptical concrete-filled steel tubular (RE-CFT) subjected to axial loading. ABAQUS was used to establish 3D finite element (FE) models for the composite columns and the FE results agreed well with the experimental results. It was found that the ultimate load-bearing capacity of RE-CFT stub columns was 20% higher than that of the E-CFT stub columns. Such improvement was attributed to the reinforcement effects from the internal rebar-stiffeners, which effectively enhanced the confinement effect on the core concrete, thereby significantly improved both the ultimate bearing capacity and the ductility of the E-CFT columns. Based on the results, equations were also established in this paper to predict the bearing capacities of E-CFT and RE-CFT stub columns under axial loading. The predicted results agreed well with both experimental and numerical results, and had much higher accuracy than other available methods.
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참고문헌 (27)
참고문헌 신청
2009 / CSA-S16-09, Canadian Standard, Steel structures for buildings (limit states design), CAN/CSA-S16-09 / Canadian Standards Association
Dai, X. H. / 2014 / Numerical analysis of slender elliptical concrete filled columns under axial compression / Steel Constr 77(4):26~35
Dai, X. / 2010 / Numerical modeling of the axial compressive behavior of short concrete-filled elliptical steel columns / J. Const. Struct. Res 66(7):931~942
Ding, F. X. / 2014 / Mechanical performance of stirrup-confined concrete-filled steel tubular stub columns under axial loading / J. Constr. Steel Res 98(7):146~157
Ding, F. X. / 2011 / Unified calculation method and its application in determining the uniaxial mechanical properties of concrete / Front. Archit. Civ. Eng., China 5(3):381~393
Dai, X. H. / 2014 / Numerical analysis of slender elliptical concrete filled columns under axial compression / Steel Constr 77(4):26~35
Dai, X. / 2010 / Numerical modeling of the axial compressive behavior of short concrete-filled elliptical steel columns / J. Const. Struct. Res 66(7):931~942
Ding, F. X. / 2014 / Mechanical performance of stirrup-confined concrete-filled steel tubular stub columns under axial loading / J. Constr. Steel Res 98(7):146~157
Ding, F. X. / 2011 / Unified calculation method and its application in determining the uniaxial mechanical properties of concrete / Front. Archit. Civ. Eng., China 5(3):381~393
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