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- W3119668487 abstract "Corrosion of steel reinforcement is a major concern particularly for the existing structurers surrounded by aggressive environment. Loss in the diameter of steel reinforcement bars occurs due to the corrosion of reinforced concrete element resulting in premature bar failure. Corrosion is also the main cause of the expansion of concrete sections which cause steel-concrete bond reduction over the element lifespan. Hence, Carbon Fiber Reinforced Polymers (CFRP) applications have received much attention in the last decades as a very efficient technique to retrofit and strengthen structural members over their lifetime. However, current applications are considered inconsistent and are associated with CFRP deboning failure among other modes of malfunctions including bond-slip, cover delamination and CFRP rupture. Therefore, this study aims to propose a new repair technique using CFRP rods and anchor bolts to enhance the mechanical performance of corroded RC beams and to overcome the common modes of failure associated with the use of the classical retrofitting technique. This technique was developed by anchoring CFRP rods to the tension part of the RC beam using two steel plates and anchor bolts, together with a concrete jacketing coating the bottom part of the RC beam. For this purpose, experimental work and analytical simulation were conducted to test four simply supported beams in flexure. In conclusion, the experimental and analytical results revealed the efficiency of the proposed composite strengthening technique, whereby the ultimate load capacity and maximum deflection of the strengthened beams increased to 32% and 52%, respectively." @default.
- W3119668487 created "2021-01-18" @default.
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- W3119668487 date "2021-02-01" @default.
- W3119668487 modified "2023-09-25" @default.
- W3119668487 title "Retrofitting of corroded reinforced concrete beams in flexure using CFRP rods and anchor bolt" @default.
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- W3119668487 doi "https://doi.org/10.1016/j.istruc.2020.12.047" @default.
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