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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.39 No.2
- 발행연도
- 2021.1
- 수록면
- 159 - 170 (12page)
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초록· 키워드
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Concrete filled steel tubes (CFSTs) are extensively used in a variety of structures due to their structural and economic advantages over other types of structures. Considerable research has been conducted with regards to their short-term behaviour, and very limited studies have focused on their long-term behaviour. In this study, a series of tests were carried out on high strength squat (short) CFSTs and concrete cylinders under controlled conditions of temperature and humidity to better understand their time dependent behaviour. A number of parameters were investigated including the influence of steel and concrete bond, confinement, level of sustained load and sizes of specimens. The results revealed that creep strains increased by more than 40% if there was no bonding between steel tube and concrete core. As expected, creep and shrinkage of concrete inside a steel tube were significantly less than those developed in exposed concrete. At the end of a creep period of six months, all the specimens were tested to failure to observe the influence of sustained loads on the ultimate strength. It was found that creep does not have a major effect on the strength of short CFSTs in the specific experimental study conducted here, which was less than 2.5%.
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참고문헌 (37)
참고문헌 신청
2007 / AS 1391 Methods for tensile testing of metals / Standards Association of Australia
2016 / AS 4100 Steel structures / Standards Australia
2017 / AS/NZS 2327 Composite Structures-Composite steelconcrete construction in buildings / Standards Australia
Farhad Aslani / 2015 / Behaviour and design of composite columns incorporating compact high-strength steel plates / Journal of Constructional Steel Research 107:94~110
Farhad Aslani / 2015 / Predicting the axial load capacity of high-strength concrete filled steel tubular columns / Steel and Composite Structures, An International Journal 19(4):967~993
2016 / AS 4100 Steel structures / Standards Australia
2017 / AS/NZS 2327 Composite Structures-Composite steelconcrete construction in buildings / Standards Australia
Farhad Aslani / 2015 / Behaviour and design of composite columns incorporating compact high-strength steel plates / Journal of Constructional Steel Research 107:94~110
Farhad Aslani / 2015 / Predicting the axial load capacity of high-strength concrete filled steel tubular columns / Steel and Composite Structures, An International Journal 19(4):967~993
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