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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.18 No.4
- 발행연도
- 2015.1
- 수록면
- 833 - 852 (20page)
이용수
초록· 키워드
오류제보하기
Self-compacting Concrete Filled steel Tubes (SCFT), which combines the advantages of steel and concrete materials, can be applied to strengthen the RC columns. In order to investigate the eccentric loading behavior of the strengthened columns, this paper presents an experimental and numerical investigation on them. The experimental results showed that the use of SCFT is interesting since the ductility and the bearing capacity of the RC columns are greatly improved. And the performance of strengthened columns is significantly affected by four parameters: column section type (circular and square), wall thickness of the steel tube, designed strength grade of strengthening concrete and initial eccentricity. In the numerical program, a generic fiber element model which takes in account the effect of confinement is developed to predict the behavior of the strengthened columns subjected to eccentric loading. After the fiber element analysis was verified against experimental results, a simple design formula based on the model is proposed to calculate the ultimate eccentric strength. Calibration of the calculated results against the test results shows that the design formula closely estimates the ultimate capacities of the eccentrically compressed strengthened columns by 5%.
목차
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참고문헌 (18)
참고문헌 신청
Chang, X. / 2009 / Push-out test of pre-stressing concrete filled circular steel tube columns by means of expansive cement / Constr. Build. Mater 23(1):491~497
Elremaily, A. / 2002 / Behavior and strength of circular concrete-filled tube columns / J. Constr. Steel Res 58(12):1567~1591
Han, L. H. / 2007 / Filled Steel Tube Columns / Science Publishing Company
Holschemacher, K. / 2004 / Hardened material properties of self-compacting concrete / J. Civil Eng. Manag 10(4):261~266
Liang, Q. Q. / 2011 / High strength circular concrete-filled steel tubular slender beam–columns, Part I:Numerical analysis / J. Constr. Steel Res 67(2):164~171
Elremaily, A. / 2002 / Behavior and strength of circular concrete-filled tube columns / J. Constr. Steel Res 58(12):1567~1591
Han, L. H. / 2007 / Filled Steel Tube Columns / Science Publishing Company
Holschemacher, K. / 2004 / Hardened material properties of self-compacting concrete / J. Civil Eng. Manag 10(4):261~266
Liang, Q. Q. / 2011 / High strength circular concrete-filled steel tubular slender beam–columns, Part I:Numerical analysis / J. Constr. Steel Res 67(2):164~171
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