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http://dx.doi.org/10.5762/KAIS.2015.16.10.7053

Characteristics of Flexural Cracking Widths in FRP-Reinforced Concrete Beams Subjected to Short-Term Loads  

Choi, Bong-Seob (Department of Architectural Engineering, Chungwoon University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.16, no.10, 2015 , pp. 7053-7060 More about this Journal
Abstract
The use of FRP(Fiber-reinforced polymer) bars results in larger crack widths under service load due to the generally low elastic modulus and poor bond characteristics of FRP as compared with steel reinforcing bars. The work presented herein includes the results from 12 beams composed of nine rectangular beams and three T-beams reinforced with FRP bars tested under four-point bending. It was investigated that the bond coefficient, $k_b$ in ACI 440.1R-06 equation had high variability which the coefficient of variation was 40% in the range of 0.6 to 1.88 with average 1.05.
Keywords
Bond coefficient; Concrete; Flexural cracking width; Fiber-reinforced polymer; Variability;
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  • Reference
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