Flexural behavior of UHPC beam reinforced with steel-FRP composite bars
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2022-06Author
Abbas, E.M.A.Ge, Y.
Zhang, Z.
Chen, Y.
Ashour, Ashraf
Ge, W.
Tang, R.
Yang, Z.
Khailah, E.Y.
Yao, S.
Sun, C.
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(c) 2022 The Authors. This is an Open Access article distributed under the Creative Commons CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)Peer-Reviewed
YesOpen Access status
openAccessAccepted for publication
2022-04-25
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This paper numerically investigates flexural performance of Ultra-High Performance Concrete (UHPC) beam reinforced with Steel-Fibre-Reinforced Polymer (FRP) Composite Bars (SFCBs) in terms of flexural stiffness, moment capacity, deflection, ductility and energy dissipation. The effect of various parameters, include the inner steel core area ratio of SFCB, yield strength of inner steel core, elastic modulus and ultimate strength of outer-wrapped FRP, reinforcement ratio, type and strength of concrete were studied. The results demonstrate that the inner steel core area ratio of SFCB, reinforcement ratio and the elastic modulus of SFCB's outer FRP have significant effect on the overall flexural performance of SFCB reinforced UHPC beam. The overall flexural performance of SFCB reinforced UHPC beam is slightly improved by increasing the yield strength of inner steel core of SFCB, but not affected by the ultimate strength of SFCB's outer FRP when specimen occurred compression failure. The results also exhibit that the flexural performance of UHPC beam reinforced with SFCBs is significantly improved when compared to those of reinforced high strength concrete (HSC) beam and normal strength concrete (NSC) beam. The flexural stiffness and the moment capacity of SFCB reinforced UHPC beam at the ultimate point were 2.0 and 2.4 times, respectively, of those of reinforced NSC counterpart.Version
Published versionCitation
Abbas EMA, Ge Y, Zhang Z et al (2022) Flexural behavior of UHPC beam reinforced with steel-FRP composite bars. Case Studies in Construction Materials. 16: e01110.Link to Version of Record
https://doi.org/10.1016/j.cscm.2022.e01110Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1016/j.cscm.2022.e01110