An experimental study of the flexural behaviour of GFRP RC beams and comparison with prediction models

Barris, Cristina; Torres, Lluís; Turón, A.; Baena, Marta; Catalan, A.

doi:10.1016/j.compstruct.2009.05.005

Cited by 144 publications

(65 citation statements)

References 7 publications

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“…Due to their different mechanical properties, the behaviour of FRP RC members is quite different to that of traditional steel reinforced concrete [5].…”

Section: Literature Reviewmentioning

confidence: 99%

Finite element modelling of concrete beams reinforced with hybrid fiber reinforced bars

Smring

Salleh

Hamid

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Concrete is a heterogeneous composite material made up of cement, sand, coarse aggregate and water mixed in a desired proportion to obtain the required strength. Plain concrete does not with stand tension as compared to compression. In order to compensate this drawback steel reinforcement are provided in concrete. Now a day, for improving the properties of concrete and also to take up tension combination of steel and glass fibrereinforced polymer (GFRP) bars promises favourable strength, serviceability, and durability. To verify its promise and support design concrete structures with hybrid type of reinforcement, this study have investigated the load-deflection behaviour of concrete beams reinforced with hybrid GFRP and steel bars by using ATENA software. Fourteen beams, including six control beams reinforced with only steel or only GFRP bars, were analysed. The ratio and the ordinate of GFRP to steel were the main parameters investigated. The behaviour of these beams was investigated via the load-deflection characteristics, cracking behaviour and mode of failure. Hybrid GFRP-Steel reinforced concrete beam showed the improvement in both ultimate capacity and deflection concomitant to the steel reinforced concrete beam. On the other hand, finite element (FE) modelling which is ATENA were validated with previous experiment and promising the good result to be used for further analyses and development in the field of present study. IntroductionFibre reinforced polymer (FRP) composites were first developed during the 1940's for the military and aerospace applications [1]. The characteristics of FRP include high resistance to corrosion, lightweight, high strength-to-weight ratio, high tensile and impact strength, fatigue resistance, nonconductive and magnetically neutral [2]. As a result, FRP have been successfully used in many construction applications such as chemical and waste-water treatment plant, underwater structures, bridges, substation reactor bases, airport runways, laboratories and water tanks [3]. The other application is to strengthen the structurally deficient beams or columns with FRP sheets or plates [4]. Today, applications of FRP in the building industry have realized the increasing popularity in Malaysia. As proven, many construction projects are using FRP water tank to replace the conventional water tank that facing steel corrosion problems. In fact, cost of manufacturing these products is quite high compared to the conventional materials. Hybrid composite beam (HCB) is a structural member, utilizing several different building materials with dissimilar attributes. Furthermore, the hybrid composite beam is a sustainable technology that combines the strength and stiffness of conventional concrete and steel. In this report, we investigated

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“…Due to their different mechanical properties, the behaviour of FRP RC members is quite different to that of traditional steel reinforced concrete [5].…”

Section: Literature Reviewmentioning

confidence: 99%

Finite element modelling of concrete beams reinforced with hybrid fiber reinforced bars

Smring

Salleh

Hamid

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Many deterioration and failures in the concrete such as crack, shrinkage and corrosion are due to the brittle nature of this material. The role of fibre inside concretes is to bridge across the cracks when the strain of the composite has exceeded the ultimate strain capacity of the brittle [2]. Besides, the fibres have the contribution in improving the deflection, ultimate loading and ductility of a structures.…”

Section: Introductionmentioning

confidence: 99%

Cracking Propagation and Pattern Behaviour of Irregular-Shaped Polyethylene Terephthalate Fibre Reinforced Concrete Beam

Irwan

Asyraf

Othman

et al. 2015

AMM

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This paper reports the results on cracking propagation and pattern of reinforced concrete (RC) beam conducted using irregular-shaped Polyethylene Terephthalate (IPET) as a fibre. Three volume fraction of IPET fibre is used namely, 0.5%, 1% and 1.5%. All RC beam specimens are tested under four point loading under flexural capacity behaviour. Prior to structural test, the materials properties which include the compressive and tensile strength test and modulus of elasticity test were determined. The results than are compared with control RC beam. It is found that the RC beam with IPET fibre does not significantly change the behaviour of failure mode, cracking propagation and pattern compared to control RC beam.

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“…The flexural behaviour of FRP bar reinforced normal 36 and high strength concrete members were extensively investigated in the last two decades [1,37 However, these studies were limited to FRP bar reinforced concrete columns cast with 48 normal strength concrete (NSC) with compressive strength lower than 50 MPa. Hence, the 49 observations obtained from these studies may not be adequate for FRP bar reinforced HSCcolumns, since the behaviour of HSC columns differs significantly from NSC columns [10-51 12].…”

Section: Introduction 30mentioning

confidence: 99%

Performance evaluation of high strength concrete and steel fibre high strength concrete columns reinforced with GFRP bars and helices

Hasan

Sheikh

Hadi

2017

Construction and Building Materials

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Performance evaluation of high strength concrete and steel fibre high strength concrete columns reinforced with GFRP bars and helices AbstractThis study presents the results of an experimental investigation on high strength concrete (HSC) and steel fibre high strength concrete (SFHSC) circular column specimens reinforced longitudinally and transversely with Glass Fibre-Reinforced Polymer (GFRP) bars and helices, respectively. The Influence of the type of the reinforcement (steel and GFRP), the pitch of the transverse reinforcement, the addition of the steel fibres and the loading condition (concentric, eccentric and four-point loading) on the performance of the specimens was investigated. The study showed that the GFRP bar reinforced HSC (GFRP-HSC) specimen is as efficient as the steel bar reinforced HSC (steel-HSC) specimen in sustaining concentric axial load. However, the maximum load sustained by the GFRP-HSC specimens under eccentric axial load was 10-12% lower than the maximum load sustained by the steel-HSC specimens. GFRP bar reinforced SFHSC (GFRP-SFHSC) specimens sustained 3-13% higher axial load and 14-27% greater ductility than GFRP-HSC specimens under different loading conditions. Furthermore, reducing the pitch of the GFRP helices in GFRP-SFHSC specimens resulted in a significant improvement in the ductility and the post-peak axial load-axial deformation behaviour of the specimens. (concentric, eccentric and four-point loading) on the performance of the specimens was 19 investigated. The study showed that the GFRP bar reinforced HSC (GFRP-HSC) specimen is 20 as efficient as the steel bar reinforced HSC (steel-HSC) specimen in sustaining concentric 21 axial load. However, the maximum load sustained by the GFRP-HSC specimens under 22 eccentric axial load was 10-12% lower than the maximum load sustained by the steel-HSC 23 specimens. GFRP bar reinforced SFHSC (GFRP-SFHSC) specimens sustained 3-13% higher 24 axial load and 14-27% greater ductility than GFRP-HSC specimens under different loading 25

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An experimental study of the flexural behaviour of GFRP RC beams and comparison with prediction models

Cited by 144 publications

References 7 publications

Finite element modelling of concrete beams reinforced with hybrid fiber reinforced bars

Finite element modelling of concrete beams reinforced with hybrid fiber reinforced bars

Cracking Propagation and Pattern Behaviour of Irregular-Shaped Polyethylene Terephthalate Fibre Reinforced Concrete Beam

Performance evaluation of high strength concrete and steel fibre high strength concrete columns reinforced with GFRP bars and helices

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