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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.19 No.6
- 발행연도
- 2017.1
- 수록면
- 631 - 639 (9page)
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초록· 키워드
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This study experimentally investigated the flexural capacity of a concrete beam reinforced with a newly developed GFRP bar that overcomes the lower modulus of elasticity and bond strength compared to a steel bar. The GFRP bar was fabricated by thermosetting a braided pultrusion process to form the outer fiber ribs. The mechanical properties of the modulus of elasticity and bond strength were enhanced compared with those of commercial GFRP bars. In the four-point bending test results, all specimens failed according to the intended failure mode due to flexural design in compliance with ACI 440.1R-15. The effects of the reinforcement ratio and concrete compressive strength were investigated. Equations from the code were used to predict the deflection, and they overestimated the deflection compared with the experimental results. A modified model using two coefficients was developed to provide much better predictive ability, even when the effective moment of inertia was less than the theoretical Icr. The deformability of the test beams satisfied the specified value of 4.0 in compliance with CSA S6-10. A modified effective moment of inertia with two correction factors was proposed and it could provide much better predictability in prediction even at the effective moment of inertia less than that of theoretical cracked moment of inertia.
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참고문헌 (22)
참고문헌 신청
AASHTO / 2009 / LRFD Bridge Design Guide Specifications for GFRP-Reinforced Concrete Bridge Decks and Traffic Railings
AASHTO / 2012 / LRFD Bridge Design Guide Specifications / American Association of State Highway and Transportation Officials
2006 / Guide for the Design and Construction of Concrete Reinforced with FRP Bars / ACI 440. 1R-06, American Concrete Institute
2015 / Guide for the Design and Construction of Concrete Reinforced with FRP Bars / ACI 440. 1R-15, American Concrete Institute
Adam, M. A. / 2015 / Analytical and experimental flexural behavior of concrete beams reinforced with glass fiber reinforced polymers bars / Constr. Build. Mater. 84:354~366
AASHTO / 2012 / LRFD Bridge Design Guide Specifications / American Association of State Highway and Transportation Officials
2006 / Guide for the Design and Construction of Concrete Reinforced with FRP Bars / ACI 440. 1R-06, American Concrete Institute
2015 / Guide for the Design and Construction of Concrete Reinforced with FRP Bars / ACI 440. 1R-15, American Concrete Institute
Adam, M. A. / 2015 / Analytical and experimental flexural behavior of concrete beams reinforced with glass fiber reinforced polymers bars / Constr. Build. Mater. 84:354~366
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