Behavior of Continuous Concrete Beams Reinforced with FRP Bars

El-Mogy, Mostafa; El-Ragaby, Amr; El-Salakawy, Ehab

doi:10.1007/978-3-642-17487-2_60

Cited by 18 publications

(17 citation statements)

References 3 publications

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“…The FRP bars used were CFRP and GFRP reinforcing bars. The material properties and detailed specimens are presented in TABLE (1) and (2).…”

Section: Test Specimenmentioning

confidence: 99%

“…Fig. (1) shows the detailed specimen dimensions, cross section, instrumentation and test setup procedure considered while testing. The reinforced concrete beams used in this study have a rectangular cross section of dimensions (200 × 300) mm; the beams are continuous over two spans of 2.8 m each and a total length of 6.0 m. It should be mentioned that both beams were reinforced transversely with steel stirrups.…”

Section: Test Specimenmentioning

confidence: 99%

“…TABLE (3) assures that the Canadian and the American codes whether in the Carbon or Glass Fiber Reinforced Polymer beam have approximately the same results with 1.5 % difference between them while the Egyptian code produced 57% difference than the other codes in beam CS/e and 23% difference in beam GS/e leading to an unacceptable percent in both beams; it is obvious whether with the graphical representation or with numerical method that the Egyptian code's results are far from the other used codes.…”

Section: Upper Cracksmentioning

confidence: 99%

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Numerical and Analytical Evaluation of Continuous Concrete Beam Reinforced With FRP Bars

Belal¹,

El-Nemr²,

Hanna³

2021

International Journal of Civil Engineering and Technology (Ijciet)

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An innovative promising non corrosive material to be used in reinforcing concrete structures has emerged; which is the Fiber Reinforced Polymers. It has been used as replacement for conventional steel reinforcement for several concrete structural members. Yet, some of these structural members have not been studied intensively, such as continuous beams. Continuous beams as structural elements might exist in residential, commercial buildings as well as bridges. This paper uses the continuous beam element to investigate the predicted equations for the crack widths and the deflection at the serviceability limit state SLS assigned by various codes and guidelines, a finite element model was established using ANSYS software. This model was validated against the experimental work done by El-Mogy,M. (2011) which is the foundation of this research.Various codes were adopted to estimate the deflection and the crack width against the verified ANSYS model to distinguish if any further modifications are required. The used codes in this study are the Egyptian Code of Practice ECP, the American Concrete Institute ACI guidelines and the Canadian Standards Association CSA.It was found that the American and the Canadian codes produced approximately the same results in the crack widths while modifications should be done in the Egyptian code in order to be used in designing structures and perform as the other ones that are similar to reality; it yielded a percentage of variance of more than 50 percent than the other codes which is an unacceptable percent while in the deflection calculations, non-Numerical and Analytical Evaluation of Continuous Concrete Beam Reinforced with FRP Bars

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“…The FRP bars used were CFRP and GFRP reinforcing bars. The material properties and detailed specimens are presented in TABLE (1) and (2).…”

Section: Test Specimenmentioning

confidence: 99%

Section: Test Specimenmentioning

confidence: 99%

Section: Upper Cracksmentioning

confidence: 99%

See 1 more Smart Citation

Numerical and Analytical Evaluation of Continuous Concrete Beam Reinforced With FRP Bars

Belal¹,

El-Nemr²,

Hanna³

2021

International Journal of Civil Engineering and Technology (Ijciet)

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“…Consequently, the FRP reinforced concrete (FRP-RC) structures suffer from excessive deflections and large cracks that impair its serviceability. In this case, the design of FRP-RC structures should be governed by their limit state of serviceability, rather than their ultimate limit state [3]. CFRP-bars, by contrast, offers the reinforced element little deflection values with a weak ductility behavior.…”

Section: Introductionmentioning

confidence: 99%

Flexural behavior of RC continuous T-beams reinforced with hybrid CFRP/ steel bars (experimental and numerical study)

Diab

Khaled

Rashwan

2021

JES. Journal of Engineering Sciences

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This study presents experimental and numerical investigations to understand the response and failure of hybrid RC continuous T-beams reinforced in flexure by both Carbon Fiber Reinforced Polymer (CFRP) bars and steel bars at sagging and hogging regions. Three RC continuous T-beams were constructed experimentally and studied to discuss three parameters which are the type of reinforcement material, the relation between sagging and hogging reinforcement, and the moment redistribution. The control beam was reinforced with steel rebars that have been designed to fail in flexure. The second beam was reinforced with hybrid CFRP/ steel bars at the sagging and hogging regions. The sagging region of the third one was reinforced with steel bars while the hogging region was reinforced with CFRP bars. All critical sections at the tested specimens are designed to have the same axial stiffness for the reinforcement bars. Experimental results revealed that the moment redistribution ratio and mode of failure depend on the type of reinforcement bars and using the hybrid bars at both critical regions helped to control the serviceability limits of the beams. This study also suggests and validates a 3D 216

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“…Various proposals for design guidelines have arisen from these studies. On the other hand, continuous reinforced concrete members are commonly used in structures such as parking garages and bridges exposed to de-icing salts, but relatively limited experimental investigations (Grace et al 1998;Ashour and Habeeb 2008;Habeeb and Ashour 2008;El-Mogy et al 2010;El-Mogy 2011;Mahroug et al 2014a&b) have been carried out on continuous FRP reinforced concrete structures. However, there are concerns about the ability of FRP-reinforced continuous members to redistribute moments due to the linear elastic behavior of FRP until failure.…”

Section: Introductionmentioning

confidence: 99%

Tests of Continuous Concrete Slabs Reinforced with Basalt Fiber-Reinforced Plastic Bars

Kara¹,

Köroğlu²,

Ashour³

2017

ACI Structural Journal

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This paper presents experimental results of three continuously supported concrete slabs reinforced with basalt-fibre-reinforced polymer (BFRP) bars. Three different BFRP reinforcement combinations of over and under reinforcement ratios were applied at the top and bottom layers of continuous concrete slabs tested. One additional concrete continuous slab reinforced with steel bars and two simply supported slabs reinforced with under and over BFRP reinforcements were also tested for comparison purposes. All slabs sections tested had the same width and depth but different amounts of BFRP reinforcement. The experimental results were used to validate the existing design guidance for the predictions of moment and shear capacities, and deflections of continuous concrete elements reinforced with BFRP bars. The continuously supported BFRP reinforced concrete slabs illustrated wider cracks and larger deflections than the control steel reinforced concrete slab. All continuous BFRP reinforced concrete slabs exhibited a combined shear-flexure failure mode. ACI 440-1R-15 equations give reasonable predictions for the deflections of continuous slabs (after first cracking) but stiffer behaviour for the simply supported slabs, whereas CNR DT203 reasonably predicted the deflections of all BFRP slabs tested. On the other hand, ISIS-M03-07 provided the most accurate shear capacity prediction for continuously supported BFRP reinforced concrete slabs among the current shear design equations.

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Behavior of Continuous Concrete Beams Reinforced with FRP Bars

Cited by 18 publications

References 3 publications

Numerical and Analytical Evaluation of Continuous Concrete Beam Reinforced With FRP Bars

Numerical and Analytical Evaluation of Continuous Concrete Beam Reinforced With FRP Bars

Flexural behavior of RC continuous T-beams reinforced with hybrid CFRP/ steel bars (experimental and numerical study)

Tests of Continuous Concrete Slabs Reinforced with Basalt Fiber-Reinforced Plastic Bars

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