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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.35 No.1
- 발행연도
- 2020.1
- 수록면
- 93 - 109 (17page)
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초록· 키워드
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Developed from conventional concrete filled steel tubular (CFST) members, concrete-encased CFST has attracted growing attention in building and bridge practices. In actual construction, the inner CFST is erected prior to the casting of the outer reinforced concrete part to support the construction preload, after which the whole composite member is under sustained service load. The complex loading sequence leads to highly nonlinear material interaction and consequently complicated structural performance. This paper studies the full-range behaviour of concrete-encased CFST columns with initial preload on inner CFST followed by sustained service load over the whole composite section. Validated against the reported data obtained from specifically designed tests, a finite element analysis model is developed to investigate the detailed structural behaviour in terms of ultimate strength, load distribution, material interaction and strain development. Parametric analysis is then carried out to evaluate the impact of significant factors on the structural behaviour of the composite columns. Finally, a simplified design method for estimating the sectional capacity of concrete-encased CFST is proposed, with the combined influences of construction preload and sustained service load being taken into account. The feasibility of the developed method is validated against both the test data and the simulation results.
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참고문헌 (34)
참고문헌 신청
Attard, M. / 1996 / Stress-strain relationship of confined and unconfined concrete / ACI Mater. J 93(5):432~442
ABAQUS / 2016 / ABAQUS Standard User's Manual, version 6.16 / Dassault Systèmes Corp
Cristina Campian / 2015 / Behavior of Fully Encased Steel-concrete Composite Columns Subjected to Monotonic and Cyclic Loading / Procedia Engineering 117:439~451
2005 / CECS 188:2005, Technical specification for steel tube-reinforced concrete column structure / China Association for Engineering Construction Standardization
Chen, Z. Y. / 2002 / Experimental research on behavior of high strength concrete column reinforced with concrete-filled steel tube under axial compression / J. Dalian Univ. Technol 45(5):687~691
ABAQUS / 2016 / ABAQUS Standard User's Manual, version 6.16 / Dassault Systèmes Corp
Cristina Campian / 2015 / Behavior of Fully Encased Steel-concrete Composite Columns Subjected to Monotonic and Cyclic Loading / Procedia Engineering 117:439~451
2005 / CECS 188:2005, Technical specification for steel tube-reinforced concrete column structure / China Association for Engineering Construction Standardization
Chen, Z. Y. / 2002 / Experimental research on behavior of high strength concrete column reinforced with concrete-filled steel tube under axial compression / J. Dalian Univ. Technol 45(5):687~691
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