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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Structural Engineering and Mechanics, An Int'l Journal Structural Engineering and Mechanics, An Int'l Journal Vol.79 No.3
- 발행연도
- 2021.1
- 수록면
- 337 - 345 (9page)
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초록· 키워드
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The contribution of shear deformations to total deflections in slender concrete beams is often ignored in design practices. The negligence of shear deformations could lead to the underestimation of total deflections in slender concrete beams, which will result in unsafe designs of slender concrete beams at service conditions. The shear deformations could be more critical in concrete beams reinforced with FRP bars than reinforced concrete beams because of the lower elastic modulus of FRP bars as comparing to steel ones. To address this problem, this paper attempts to determine shear deformations of slender concrete beams reinforced with FRP bars based on the variable angle truss model. The shear span of the slender concrete beams is divided into the truss units. The inclinations of struts in these truss units are first calculated by using the principle of virtual work. The shear deformations of the beams are then evaluated by summing all the shear deformations in the truss units. The calculated shear deformations are incorporated into ACI 440.1R-15’s deflection approach (2015). Comparisons are made between the analytical and available experimental results of slender concrete beams reinforced with FRP bars with respect to the deflections at 50% and 75% of the failure loads. Better results as comparing to the existing design guidelines in calculating the deflections of the slender concrete beams reinforced with FRP bars are obtained by incorporating the proposed shear deformations.
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참고문헌 (8)
참고문헌 신청
Ahmed S. Elamary / 2016 / Numerical simulation of concrete beams reinforced with composite GFRP-Steel bars under three points bending / Structural Engineering and Mechanics, An Int＇l Journal 57(5):937~949
주민관 / 2017 / Flexural behavior and a modified prediction of deflection of concrete beam reinforced with a ribbed GFRP bars / Computers and Concrete, An International Journal 19(6):631~639
주민관 / 2019 / Assessment of reliability-based FRP reinforcement ratio for concrete structures with recycled coarse aggregate / Structural Engineering and Mechanics, An Int＇l Journal 69(4):399~405
Parthena-Maria K. Kosmidou / 2018 / Flexural/shear strength of RC beams with longitudinal FRP bars An analytical approach / Computers and Concrete, An International Journal 22(6):573~592
Mousavi, S. R. / 2012 / Effective moment of inertia prediction of FRP-reinforced concrete beams based on experimental results / ASCE J. Compos. Constr 16(5):490~498
주민관 / 2017 / Flexural behavior and a modified prediction of deflection of concrete beam reinforced with a ribbed GFRP bars / Computers and Concrete, An International Journal 19(6):631~639
주민관 / 2019 / Assessment of reliability-based FRP reinforcement ratio for concrete structures with recycled coarse aggregate / Structural Engineering and Mechanics, An Int＇l Journal 69(4):399~405
Parthena-Maria K. Kosmidou / 2018 / Flexural/shear strength of RC beams with longitudinal FRP bars An analytical approach / Computers and Concrete, An International Journal 22(6):573~592
Mousavi, S. R. / 2012 / Effective moment of inertia prediction of FRP-reinforced concrete beams based on experimental results / ASCE J. Compos. Constr 16(5):490~498
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