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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.36 No.5
- 발행연도
- 2020.1
- 수록면
- 553 - 568 (16page)
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초록· 키워드
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Steel-concrete composite structures have been extensively used in building, bridges, and other civil engineering infrastructure. Shear stud connectors between steel and concrete are essential in composite members to guarantee the effectiveness of their behavior in terms of strength and deformability. This study focuses on investigating the shear stiffness of headed studs embedded in several types of concrete with wide range of compressive strength, and their effects on the elastic behavior of steel-concrete composite girders were evaluated. Firstly, totally 206 monotonic push-out tests from the literature were reviewed to investigate the shear stiffness of headed studs embedded in various types of concrete (NC, HPC, UHPC etc.). Shear stiffness of studs is defined as the secant stiffness of the load-slip curve at 0.5Vu, and a formulation for predicting defined shear stiffness in elastic state was proposed, indicating that the stud diameter and the elastic modulus of steel and concrete are the main factors. And the shear stiffness predicted by the new formula agree well with test results for studs with a diameter ranging from 10 to 30 mm in the concrete with compressive strength ranging from 22.0 to 200.0MPa. Then, the effects of shear stiffness on the elastic behaviors of composite girders with different sizes and under different loading conditions were analyzed, the equations for calculating the stress and deformation of simply supported composite girders considering the influence of connection’s shear stiffness were derived under different loading conditions using classical linear partial-interaction theory. As the increasing of shear stiffness, the stress and deflection at the most unfavorable section under partial connected condition tend to be those under full connected condition, but the approaching speed decreases gradually. Finally, the connector’s shear stiffness was recommended for fully connection in composite girders with different dimensions under different loading conditions. The findings from present study may provide a reference for the prediction of shear stiffness for headed studs and the elastic design of steel-concrete composite girder.
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참고문헌 (62)
참고문헌 신청
American Association of State Highway and Transportation Officials (AASHTO) / 2014 / AASHTO LRFD bridge design specifications / AASHTO
Li An / 1996 / Push-out tests on studs in high strength and normal strength concrete / Journal of Constructional Steel Research 36(1):15~29
2005 / ANSI/AISC 360-05, Specification for Structural Steel Buildings / American Institute of Steel Construction
Sameh S. Badie / 2002 / Large Shear Studs for Composite Action in Steel Bridge Girders / Journal of Bridge Engineering 7(3):195~203
British Standard Institution(BSI) / 1978 / Steel, Concrete and Composite Bridges, Part 3: Code of Practice for Design of Steel Bridges. BS5400 / British Standard Institution
Li An / 1996 / Push-out tests on studs in high strength and normal strength concrete / Journal of Constructional Steel Research 36(1):15~29
2005 / ANSI/AISC 360-05, Specification for Structural Steel Buildings / American Institute of Steel Construction
Sameh S. Badie / 2002 / Large Shear Studs for Composite Action in Steel Bridge Girders / Journal of Bridge Engineering 7(3):195~203
British Standard Institution(BSI) / 1978 / Steel, Concrete and Composite Bridges, Part 3: Code of Practice for Design of Steel Bridges. BS5400 / British Standard Institution
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