Shear behavior of geopolymer concrete beams reinforced with glass fiber-reinforced polymer bars
Article
Article Title | Shear behavior of geopolymer concrete beams reinforced with glass fiber-reinforced polymer bars |
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ERA Journal ID | 4142 |
Article Category | Article |
Authors | Maranan, G. B. (Author), Manalo, A. C. (Author), Benmokrane, B. (Author), Karunasena, W. (Author) and Mendis, P. (Author) |
Journal Title | ACI Structural Journal |
Journal Citation | 114 (2), pp. 337-348 |
Number of Pages | 12 |
Year | 2017 |
Publisher | American Concrete Institute |
Place of Publication | United States |
ISSN | 0889-3241 |
1944-7361 | |
Digital Object Identifier (DOI) | https://doi.org/10.14359/51689150 |
Web Address (URL) | https://www.concrete.org/publications/internationalconcreteabstractsportal.aspx?m=details&ID=51689150 |
Abstract | The shear behavior of geopolymer concrete beams reinforced with GFRP bars and stirrups was investigated. Six short beams with a shear-span-to-effective-depth ratio (a/d) of 1.8 were cast: one with no stirrups, three with different stirrup spacing, one with less reinforcement, and one with steel stirrups. In addition, a slender beam (a/d=4.7) with the same cross-sectional area were built to investigate the influence of a/d. Experimental results showed that the GFRP stirrups enhanced both the shear strength and deflection capacity of the beams by approximately 200%. The shear crack initiated at a higher load and with a finer crack width in the beam with narrower stirrups spacing. The short beam yielded higher shear strength than the slender beam with a similar transverse reinforcement ratio. The beams with GFRP stirrups yielded a shear strength and deflection capacity—including an analogous load–deflection response—similar to that of the beam with steel stirrups. |
Keywords | shear; geopolymer concrete beams; GFRP bars; GFRP stirrups; short beam |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | School of Civil Engineering and Surveying |
Centre for Future Materials | |
University of Sherbrooke, Canada | |
University of Southern Queensland | |
University of Melbourne | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q3z1q/shear-behavior-of-geopolymer-concrete-beams-reinforced-with-glass-fiber-reinforced-polymer-bars
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