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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.20 No.5
- 발행연도
- 2016.1
- 수록면
- 1,067 - 1,085 (19page)
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초록· 키워드
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Recent research on steel moment-resisting connection between steel beams and concrete filled steel tubes has shown that there are considerable advantages to be obtained by anchoring the connection to the concrete infill within the tube using anchors in blind bolts. In the research reported here, extensive experimental tests and numerical analyses have been performed to study the anchorage behaviour of cogged deformed reinforcing bars within concrete filled circular steel tubes. This data in essential knowledge for the design of the steel connections that use anchored blind bolts, both for strength and stiffness. A series of pull-out tests were conducted using steel tubes with different diameter to thickness ratios under monotonic and cyclic loading. Both hoop strains and longitudinal strains in the tubes were measured together with applied load and slip. Various lead-in lengths before the bend and length of tailed extension after the bend were examined. These dimensions were limited by the dimensions of the steel tube and did not meet the requirements for “standard” cogs as specified in concrete standards such as AS 3600 and ACI 318. Nevertheless, all of the tested specimens failed by bar fracture outside the steel tubes. A comprehensive 3D Finite Element model was developed to simulate the pull-out tests. The FE model took into account material nonlinearities, deformations in reinforcing bars and interactions between different surfaces. The FE results were found to be in good agreement with experimental results. This model was then used to conduct parametric studies to investigate the influence of the confinement provided by the steel tube on the infilled concrete.
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참고문헌 (23)
참고문헌 신청
Abaqus / 2012 / Abaqus User Manual; Dassault Systems
ACI / 2005 / ACI Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05) / American Concrete Institute
2001 / AS/NZS4671, AS/NZS4671 Steel Reinforcing Materials / Standards Australia
1991 / AS1163, AS1163 Cold-formed structural steel hollow sections / Standards Australia
2001 / AS3600, AS3600 Concrete structures / Standards Australia
ACI / 2005 / ACI Building Code Requirements for Structural Concrete (ACI 318-05) and Commentary (ACI 318R-05) / American Concrete Institute
2001 / AS/NZS4671, AS/NZS4671 Steel Reinforcing Materials / Standards Australia
1991 / AS1163, AS1163 Cold-formed structural steel hollow sections / Standards Australia
2001 / AS3600, AS3600 Concrete structures / Standards Australia
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