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- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.72 No.2
- 발행연도
- 2019.1
- 수록면
- 155 - 168 (14page)
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This paper presents the results of an experimental investigation on the compressive strength of small scale concentrically axially loaded fiber-reinforced polymer (FRP) confined plain concrete columns, with cylinder concrete strength 19 MPa. For columns with circular (150-mm diameter) and square (150-mm side) cross sections wrapped with glass- and carbon- FRP sheets (GFRP and CFRP, respectively) applied with dry lay-up the effect of different jacket schemes and different overlap configurations on the confined characteristics is investigated. Test results indicate that the most cost effective jacket configuration among those tested is for one layer of CFRP, for both types of sections. In square sections the location of the lap length, either in the corner or along the side, does not seem to affect the confined performance. Furthermore, in circular sections, the presence of an extra wrap with FRP fibers parallel to the column’s axis enhances the concrete strength proportionally to the axial rigidity of the FRP jacket. The recorded strains and the distributions of lateral confining pressures are discussed. Existing design equations are used to assess the lateral confining stresses and the confined concrete strength making use of the measured hoop strains.
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참고문헌 (46)
참고문헌 신청
Khaled Abdelrahman / 2014 / Cost and Ductility Effectiveness of Concrete Columns Strengthened with CFRP and SFRP Sheets / Polymers 6(5):1381~1402
Ching Au / 2005 / Effect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete / Journal of Composites for Construction 9(5):397~407
L. A. Bisby / 2009 / Strain localisations in FRP-confined concrete: new insights / Proceedings of the Institution of Civil Engineers - Structures and Buildings 162(5):301~309
Hafida Bouchelaghem / 2011 / Strength of concrete columns externally wrapped with composites under compressive static loading / Journal of Reinforced Plastics and Composites 30(19):1671~1688
CEN / 2004 / European Standard EN1992-1-1:2004 Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings / European Committee for Standardization
Ching Au / 2005 / Effect of Fiber Orientation and Ply Mix on Fiber Reinforced Polymer-Confined Concrete / Journal of Composites for Construction 9(5):397~407
L. A. Bisby / 2009 / Strain localisations in FRP-confined concrete: new insights / Proceedings of the Institution of Civil Engineers - Structures and Buildings 162(5):301~309
Hafida Bouchelaghem / 2011 / Strength of concrete columns externally wrapped with composites under compressive static loading / Journal of Reinforced Plastics and Composites 30(19):1671~1688
CEN / 2004 / European Standard EN1992-1-1:2004 Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings / European Committee for Standardization
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