Flexural performance of concrete beams reinforced with steel–FRP composite bars

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Publication date
2020-05-16Keyword
Steel-FRP composite barSFCB
Concrete beams
Flexural behaviour
Capacity for bending
Deflection
Crack
Rights
© 2020 Elsevier. Reproduced in accordance with the publisher's self-archiving policy. This manuscript version is made available under the CC-BY-NC-ND 4.0 license.Peer-Reviewed
YesAccepted for publication
2020-05-02
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Show full item recordAbstract
Flexural performance of concrete beams reinforced with steel–FRP composite bar (SFCB) was investigated in this paper. Eight concrete beams reinforced with different bar types, namely one specimen reinforced with steel bars, one with fiber-reinforced polymer (FRP) bars and four with SFCBs, while the last two with hybrid FRP/steel bars, were tested to failure. Test results showed that SFCB/hybrid reinforced specimens exhibited improved stiffness, reduced crack width and larger bending capacity compared with FRP-reinforced specimen. According to compatibility of strains, materials’ constitutive relationships and equilibrium of forces, two balanced situations, three different failure modes and balanced reinforcement ratios as well as analytical technique for predicting the whole loading process are developed. Simplified formulas for effective moment of inertia and crack width are also proposed. The predicted results are closely correlated with the test results, confirming the validity of the proposed formulas for practical use.Version
Accepted manuscriptCitation
Ge W, Wang Y, Ashour AF et al (2020) Flexural performance of concrete beams reinforced with steel–FRP composite bars. Archives of Civil and Mechanical Engineering. 20: Article 56.Link to Version of Record
https://doi.org/10.1007/s43452-020-00058-6Type
Articleae974a485f413a2113503eed53cd6c53
https://doi.org/10.1007/s43452-020-00058-6