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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.26 No.4
- 발행연도
- 2018.1
- 수록면
- 501 - 511 (11page)
이용수
초록· 키워드
오류제보하기
Concrete-filled steel tubular (CFT) columns are commonly used in engineering structures and always subjected to torsion in practice. This paper is thus devoted to investigate the mechanical behavior of circular CFT columns under pure torsion.3D finite element models based on reasonable material constitutive relation were established for analyzing the load-strain (<i>T-–γ</i>) curves of circular CFT columns under pure torsion. The numerical simulation indicated that local bulking of the steel tube in CFT columns was prevented and the shear strength and ductility of the core concrete were significantly improved due to the confinement effect between the steel tube and the core concrete. Based on the results, formulas to predict the torsional ultimate bearing capacity of circular CFT columns were proposed with satisfactory correspondence with experimental results. Besides, formulas of composite shear stiffness and the overall process of the <i>T-–γ</i> relation of circular CFT columns under pure torsion were proposed.
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참고문헌 (21)
참고문헌 신청
Baltay, P. / 1992 / Coefficient of friction for steel on concrete at high normal stress / J. Mater. Civil Eng. 2(1):46~49
Beck, J. / 2003 / Fundemental pure bearing properties of concrete filled steel tubes / Proceedings of the Japan Society of Civil Engineers 739(739):285~296
2012 / CECS28, Technical specification for concrete-filled steel tubular structures
Chang, X. / 2013 / Study on concrete-filled stainless steel carbon steel tubular (CFSCT) stub columns under compression / Thin-Wall. Struct. 63(3):125~133
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
Beck, J. / 2003 / Fundemental pure bearing properties of concrete filled steel tubes / Proceedings of the Japan Society of Civil Engineers 739(739):285~296
2012 / CECS28, Technical specification for concrete-filled steel tubular structures
Chang, X. / 2013 / Study on concrete-filled stainless steel carbon steel tubular (CFSCT) stub columns under compression / Thin-Wall. Struct. 63(3):125~133
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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