Shear Strength Prediction for Concrete Beams Reinforced with GFRP Bars

Hamid, Nor Aziati Abdul; Thamrin, Rendy; Ibrahim, Azmi; Hamid, Hanizah Abdul; Salleh, Norhafizah; Jamellodin, Zalipah; Majid, Masni A.; Khalid, Nur Hafizah A.

doi:10.1051/matecconf/201710302013

Cited by 4 publications

(1 citation statement)

References 9 publications

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“…The main reason for the lower shear capability of GFRP-RC members compared to steel RC members is their lower modulus of elasticity leading to smaller compression block depth and weaker aggregate interlock. A shear stress equation was proposed in view of the data received from experimental analysis over the member reinforced with steel, found to be un-conservative in the beams using GFRP reinforcement [71]. Seven RC flexural rectangular members were tested, each with GFRP reinforcement and steel rebars (hybrid reinforcement).…”

Section: Overview Of the Literature Flexural Behaviormentioning

confidence: 99%

A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members

Kinjawadekar

Patil

Nayak

2023

J. Inst. Eng. India Ser. A

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Since the nineteenth century, reinforced concrete was evolved as a crucial material for construction. This popular composite material is broadly used in different building typologies. However, the decaying of steel rebar due to corrosion is identified as a hindrance that can affect the quality of reinforced concrete structures. In reference to this, the glass fiber-reinforced polymer (GFRP) bar is essential because of corrosion-resistant properties. The researchers performed various tests and numerical analysis to know the response of GFRP-reinforced flexural members in shear and bending. Based on studies over the last decade, this study critically analyzes the response of flexural member reinforced using glass fiber-reinforced polymer (FRP) bars. Understanding the behavior of the FRP bar as the alternating reinforcing material will be aided by this review. Since the GFRP bar has high strength and no yield point, the conventional characterizations of ductility may not be applicable to determine whether GFRP-reinforced concrete components are ductile. Hence, a detailed study is needed to understand the behavior of such structures. This paper explores various properties of GFRP-reinforced beams to appreciate the applications of GFRP reinforcement in flexural members.

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Section: Overview Of the Literature Flexural Behaviormentioning

confidence: 99%

A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members

Kinjawadekar

Patil

Nayak

2023

J. Inst. Eng. India Ser. A

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Shear behavior of box‐section concrete beams reinforced by FRP bars and FRP stirrups

Ebrahim,

Mahmoud,

Salama

et al. 2024

Structural Concrete

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A few research studies are available on the behavior of reinforced concrete (RC) box section beams with fiber‐reinforced polymer bars (FRP) and FRP stirrups. Consequently, the behavior of these beams needs to be investigated. This article studies experimentally, numerically, and analytically the effect of some variables on the behavior of RC box section beams. This article investigates many variables, such as the shear span‐to‐total depth ratio, the flexural FRP reinforcement ratio, and the FRP vertical and horizontal web reinforcement ratio. The experimental program consists of nine simply supported reinforced concrete box section beams. The numerical models using the nonlinear finite element program ANSYS V.15 are carried out. The results are compared to the experimental results using load‐deflection curves, crack patterns, failure loads, and failure modes. The shear capacities based on Egyptian ECP 208‐2019 and ACI 440‐2015 codes are compared to each other and to the experimental results. The findings show an adequate agreement between the experimental, numerical, and analytical results for the range of the studied parameters. The results reveal that increasing the shear span‐to‐depth ratio by 50% decreases the carrying capacity, toughness, and displacement ductility by 2%, 28%, and 12%, respectively. The increase in main FRP reinforcement rebars by 20% increases the carrying capacity and toughness by 59% and 62%, respectively. Increasing vertical FRP stirrups by 79% increases the failure load and toughness by 26% and 15%, respectively, and displacement ductility increases only by 0.8%. The increase in horizontal FRP stirrups by 79% increases the failure load, toughness, and displacement ductility by 33%, 8%, and 4%, respectively. Both Egyptian and American codes are conservative in some cases and unconservative in others, while the numerical results are unconservative.

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Prediction and validation of constituent materials for concrete manufacturing using artificial neural network

Vellaipandian

Periasamy²,

Balasubramanian

2023

Innov. Infrastruct. Solut.

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Shear Strength Prediction for Concrete Beams Reinforced with GFRP Bars

Cited by 4 publications

References 9 publications

A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members

A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members

Shear behavior of box‐section concrete beams reinforced by FRP bars and FRP stirrups

Prediction and validation of constituent materials for concrete manufacturing using artificial neural network

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