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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.38 No.2
- 발행연도
- 2021.1
- 수록면
- 165 - 176 (12page)
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초록· 키워드
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Existing research on confined concrete filled steel tubular (CCFT) columns has been mainly focused on static or cyclic loading. In this paper, square section CCFT and CFT columns were tested under both static and impact loading, using a 10,000 kN capacity compression test machine and a drop weight testing equipment. Research parameters included bonded and unbonded fiber reinforced polymer (FRP) wraps, with carbon, basalt and glass FRPs (or CFRP, BFRP, and GFRP), respectively. Time history curves for impact force and steel strain observed are discussed in detail. Experimental results show that the failure modes of specimens under impact testing were characterized by local buckling of the steel tube and cracking at the corners, for both CCFT and CFT columns, similar to those under static loading. For both static and impact loading, the FRP wraps could improve the behavior and increase the loading capacity. To analyze the dynamic behavior of the composite columns, a finite element, FE, model was established in LS-DYNA. A simplified method that is compared favorably with test results is also proposed to predict the impact load capacity of square CCFT columns.
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참고문헌 (41)
참고문헌 신청
Md Iftekharul Alam / 2017 / Performance and dynamic behaviour of FRP strengthened CFST members subjected to lateral impact / Engineering Structures 147:160~176
Anderson, D. / 2014 / Eurocode 4 - design of composite steel and concrete structures / Springer Berlin Heidelberg
Farhad Aslani / 2016 / Confinement models for high strength short square and rectangular concrete-filled steel tubular columns / Steel and Composite Structures, An International Journal 22(5):937~974
ASTM / 2000 / Standard test method for tensile properties of polymer matrix composite material / ASTM
Beton / 1991 / Ceb-fip model code 1990
Anderson, D. / 2014 / Eurocode 4 - design of composite steel and concrete structures / Springer Berlin Heidelberg
Farhad Aslani / 2016 / Confinement models for high strength short square and rectangular concrete-filled steel tubular columns / Steel and Composite Structures, An International Journal 22(5):937~974
ASTM / 2000 / Standard test method for tensile properties of polymer matrix composite material / ASTM
Beton / 1991 / Ceb-fip model code 1990
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