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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.11 No.6
- 발행연도
- 2011.1
- 수록면
- 469 - 488 (20page)
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초록· 키워드
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This paper consists of two parts; the first part describes the laboratory work concerning the behavior of lightweight aggregate concrete filled steel tubes (LACFT). Based on eccentricity tests, fifty-four specimens with different slenderness ratios (L/D= 3, 7, and 14) were tested. The main parameters varied in the test are: load eccentricity; steel ratio; and slenderness ratio. The standard load-strain curves of LACFT columns under eccentric loading were summarized and significant parameters affecting LACFT column's bearing capacity, failure mechanism and failure mode such as confinement effect and bond strength were all studied and analyzed through the comparison with predicted strength of concrete filled steel tube columns (CFT) using the existing codes such as AISC-LRFD (1999), CHN DBJ 13-51-2003 (2003) and CHN CECS 28:90 (1990). The second part of this paper presents the results of parametric study and introduces a practical and accurate method for determination of the maximum compressive strength of confined concrete core ( fmax), In addition to, the study of the effect of aspect-ratio and length-width ratio on the yield stress of steel tubes ( fsy) under biaxial state of stress in CFT columns and the effect of these two factors on the ultimate load carrying capacity of axially loaded CFT/LACFT columns.
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참고문헌 (40)
참고문헌 신청
AISC-LRFD / 1999 / Load and Resistance Factor Design Specification for Structural Steel Buildings
Boyd FP / 1995 / Seismic performance of steel-encased concrete column under flexural loading / ACI Struct. J 92(3):355~365
Bradford MA / 1996 / Design strength of slender concrete-filled rectangular steel tubes / ACI Struct. J 93(2):229~235
Bradford MA / 2002 / Slenderness limits for filled circular steel tubes / J. Consty. Steel Research 58(2):243~252
CECS 28:90 / 1990 / Chinese specification for the design and construction of concrete-filled steel tubular structures / Planning Publishing House of China Beijing
Boyd FP / 1995 / Seismic performance of steel-encased concrete column under flexural loading / ACI Struct. J 92(3):355~365
Bradford MA / 1996 / Design strength of slender concrete-filled rectangular steel tubes / ACI Struct. J 93(2):229~235
Bradford MA / 2002 / Slenderness limits for filled circular steel tubes / J. Consty. Steel Research 58(2):243~252
CECS 28:90 / 1990 / Chinese specification for the design and construction of concrete-filled steel tubular structures / Planning Publishing House of China Beijing
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