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Title: Prediction of Deflection of Reinforced Concrete Beams Strengthened with Fiber Reinforced Polymer
Authors: Daugevičius, Mykolas
Valivonis, Juozas
Skuturna, Tomas
Keywords: strengthening
effective moment of inertia
Issue Date: 2019
Publisher: MDPI
Citation: Daugevičius, M.; Valivonis, J.; Skuturna, T. Prediction of Deflection of Reinforced Concrete Beams Strengthened with Fiber Reinforced Polymer. Materials 2019, 12, 1367.
Series/Report no.: 12;9
Abstract: The article analyses the calculation of the deflection of reinforced concrete beams strengthened with fiber reinforced polymer. This paper specifically focuses on estimating deflection when the yielding of reinforcement is reached. The article proposes a simple method for calculating deflection that was compared with the experimentally predicted deflection. The carried out comparison has showed that the proposed method is suitable not only for the strengthened beams but also for the reinforced concrete beams with a varying reinforcement ratio. The suggested calculation method is based on the effective moment of inertia, such as the one introduced in the ACI Committee 318 Building Code Requirement for Structural Concrete (ACI318). The development of deflection was divided into three stages, and equations for the effective moment of inertia were proposed considering separate stages. In addition, the put forward equations were modified attaching additional relative coefficients evaluating a change in the depth of the neutral axis.
Description: This article belongs to the Special Issue Fiber Reinforced Polymers for Structural Strengthening
ISSN: 1996-1944
Appears in Collections:Moksliniai straipsniai / Research articles

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