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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.18 No.4
- 발행연도
- 2015.1
- 수록면
- 811 - 831 (21page)
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This paper focuses on the strengthening methods used for improving the compression behaviors of perforated box-section walls as provided in the anchorage zones of steel pylons. Rectangular plates containing double-row continuous elliptical holes are investigated by employing the boundary condition of simple supporting on four edges in the out-of-plane direction of plate. Two types of strengthening stiffeners, named flat stiffener (FS) and longitudinal stiffener (LS), are considered. Uniaxial compression tests are first conducted for 18 specimens, of which 5 are unstrengthened plates and 13 are strengthened plates. The mechanical behaviors such as stress concentration, out-of-plane deformation, failure pattern, and elasto-plastic ultimate strength are experimentally investigated. Finite element (FE) models are also developed to predict the ultimate strengths of plates with various dimensions. The results of FE analysis are validated by test data. The influences of non-dimensional parameters including plate aspect ratio, hole spacing, hole width, stiffener slenderness ratio, as well as stiffener thickness on the ultimate strengths are illustrated on the basis of numerous parametric studies. Comparison of strengthening efficiency shows that the continuous longitudinal stiffener is the best strengthening method for such perforated plates. The simplified formulas used for estimating the compression strengths of strengthened plates are finally proposed.
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참고문헌 (25)
참고문헌 신청
AASHTO LRFD Bridge design specifications / 2013 / American Association of State Highway and Transportation Officials / 2013 interim revisions
2009 / Computer software / Ansys Inc
Azizian, Z.G. / 1983 / Buckling and elasto-plastic collapse of perforated plates / Proceedings of the International Conference on Instability and Plastic Collapse of Steel Structures
Bin Cheng / 2012 / Buckling behavior of strengthened perforated plates under shear loading / Steel and Composite Structures, An International Journal 13(4):367~382
Cheng, B. / 2010 / Strengthening of perforated plates under uniaxial compression: Buckling analysis / Thin-Wall. Struct 48(12):905~914
2009 / Computer software / Ansys Inc
Azizian, Z.G. / 1983 / Buckling and elasto-plastic collapse of perforated plates / Proceedings of the International Conference on Instability and Plastic Collapse of Steel Structures
Bin Cheng / 2012 / Buckling behavior of strengthened perforated plates under shear loading / Steel and Composite Structures, An International Journal 13(4):367~382
Cheng, B. / 2010 / Strengthening of perforated plates under uniaxial compression: Buckling analysis / Thin-Wall. Struct 48(12):905~914
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