Strains In Steel Reinforcement And CFRP Sheets In CFRP- Strengthened Reinforced Concrete Beams

Authors

DOI:

https://doi.org/10.23918/eajse.v11i1p1

Keywords:

CFRP Laminates, Strengthening of Beams, Strains

Abstract

Results of an experimental program, published by the author on reinforced concrete beams strengthened with Carbon Fiber Reinforced Polymer CFRP laminates, were analyzed in this work in terms of the strain development in tensile steel bars and CFRP laminates until extreme loading that causes failure. The outcome of this work may help in investigating the ductility of such beams. It may be concluded that although strengthening with CFRP enhances the carrying capacity of beams, they require special consideration for ductility.

 

References

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[2] ACI Committee 318, (2014), "Building Code Requirements for Structural Concrete (ACI 318-14)," American Concrete Institute ACI, Detroit.

[3] ACI Committee 440 (2008), "Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures," (ACI 440.2R-08), ACI, Farmington Hills, Michigan.

[4] Al-Numan, Bayan S. and Ali, O. K., (2016), "Load-Deflection Behavior and Failure Modes of CFRP Strengthened Reinforced Concrete Beams," Eurasian Journal of Science and Engineering, Vol. 1, issue 2, pp. 41-52.

https://eajse.tiu.edu.iq/index.php/eajse/article/view/211

[5] Naaman, A. and Jeong, S., (1995), "Structural Ductility of Concrete Prestressed Beams with FRP Tendons," Proceeding of the Second International RILEM Symposium – Non-Metallic (FRP) Reinforcement for Concrete Structures, Ghent, Belgium, pp. 379-386. Cited by (Carlin, B.P., (1998), "Investigation of the Strength and Ductility of Reinforced Concrete Beams Strengthened with CFRP Laminates," M.Sc. Thesis, Faculty of the Virginia Polytechnic Institute and State University).

[6] Oudah, F. and El-Hacha, R., (2012), "A new ductility model of reinforced concrete beams strengthened using Fiber Reinforced Polymer reinforcement," Composites Journal: Part B, Vol. 43, pp. 3338-3347.

https://www.sciencedirect.com/science/article/abs/pii/S1359836812001205

[7] Al-Rousan, R. and Al-Khawaldeh, A., (2021), “Behavior of Heated Damaged Reinforced Concrete Beam-Column Joints Strengthened with FRP”, Case Studies in Construction Materials 15, e00584.

https://www.researchgate.net/publication/352013696_Behavior_of_Heated_Damaged_Reinforced_Concrete_Beam-Column_Joints_Strengthened_with_FRP

[8] ACI Committee 440 (2017), "Guide for the Design and Construction of Externally Bonded FRP Systems for Strengthening Concrete Structures," (ACI 440.2R-17), ACI, Farmington Hills, Michigan

[9] Guibing Li, , Aihui Zhang b, Weiliang Jin b, Yifei Xiao c, Huaying Li (2023) “A new flexural strength model of CFRP-strengthened RC beams with intermediate crack induced debonding failure” Composite Structures, Volume 308, 15 March 2023, 116681

https://www.sciencedirect.com/science/article/abs/pii/S0263822323000259

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Published

2025-03-10

Data Availability Statement

None

How to Cite

Salim, B. (2025). Strains In Steel Reinforcement And CFRP Sheets In CFRP- Strengthened Reinforced Concrete Beams. EURASIAN JOURNAL OF SCIENCE AND ENGINEERING, 11(1), 1-10. https://doi.org/10.23918/eajse.v11i1p1

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