Effect of flexural CFRP sheets on shear resistance of reinforced concrete beams

Hawileh, Rami A.; Nawaz, Waleed; Abdalla, Jamal A.; Saqan, Elias I.

doi:10.1016/j.compstruct.2014.12.010

Cited by 79 publications

(33 citation statements)

References 11 publications

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“…Due to the advantages of high strength and stiffness to weight ratios as well as superior corrosion resistance, fibre reinforced polymer (FRP) has been extensively used in recent years to improve the compressive, flexural, and shear behaviours of concrete members [1][2][3][4][5][6]. One popular application of FRP is to provide confinement to concrete columns [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Compressive behaviour of partially FRP confined concrete: Experimental observations and assessment of the stress-strain models

Wang

Sheikh

Al-Baali

et al. 2018

Construction and Building Materials

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This study provides new insight on the compressive behaviour of partially fibre reinforced polymer (FRP) confined concrete with either strain-hardening or strain-softening responses. Fully FRP confined concrete, partially FRP confined concrete with different strip gaps, and unconfined concrete were tested under axial compression. Four types of axial load-axial deformation behaviours were observed for specimens with different strip gaps. Even though a high volumetric ratio of FRP was applied, the confinement effectiveness was negligible when the strip gap exceeded the diameter of the specimens. Moreover, the axial stress-axial strain behaviours of wrapped and non-wrapped concrete were observed to be different, and significant strain localization was observed within the non-wrapped region. Based on the experimental observations and an extensive literature review, a confinement effectiveness coefficient was proposed for partially FRP confined concrete. A stress-strain model was then developed by considering the proposed confinement effectiveness coefficient. The developed stress-strain model provided better predictions than other existing stress-strain models.

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Section: Introductionmentioning

confidence: 99%

Compressive behaviour of partially FRP confined concrete: Experimental observations and assessment of the stress-strain models

Wang

Sheikh

Al-Baali

et al. 2018

Construction and Building Materials

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“…From the experimental results it can be concluded that the shear capacity enhancement due to the laminates in 3.5-SO-NSM was very significant as the capacity of opening section increased from 101.5 kN to above 182 kN and the slab failed at the other side where opening is not present. Only one previous research [32] has evaluated the contribution of flexural FRP to the shear strength of RC beams and further research should be carried out to evaluate the contribution of FRP laminates to shear capacity of prestressed slabs. The contribution of longitudinal CFRP laminated was not considered in the analytical calculations.…”

Section: Analytical Predictionsmentioning

confidence: 98%

“…However, ACI 440.2R-08 guidelines do not quantify this contribution. The contribution of CFRP laminates to shear capacity of the slabs is also neglected [31,32] due to very small transverse shear capacity of the FRP material. From the experimental results it can be concluded that the shear capacity enhancement due to the laminates in 3.5-SO-NSM was very significant as the capacity of opening section increased from 101.5 kN to above 182 kN and the slab failed at the other side where opening is not present.…”

Section: Analytical Predictionsmentioning

confidence: 99%

Efficient near surface mounting CFRP strengthening of pretensioned hollowcore slabs with opening – An experimental study

Pachalla

Prakash

2017

Composite Structures

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“…So far, numerous studies have been done on ordinary concrete and its components (Sallam 2010;Sallam et al 2010;Abou El-Mal, Sherbini, and Sallam 2015;Hawileh et al 2015;Abdalla et al 2016;Abou El-Mal, Sherbini, and Sallam 2018). However, the utilization of DS in concrete would improve the mechanical properties of concrete (Zhang et al 2006).…”

Section: Introductionmentioning

confidence: 99%

Experimental evaluation of the effort of dune sand replacement levels on flexural behaviour of reinforced beam

Yang

Luo

2020

Journal of Asian Architecture and Building Engineering

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An experimental investigation was conducted to explore the flexural behaviour of reinforced beam made with dune sand (DS) from Gurbantunggut desert in northwest China's Xinjiang province. In order to study the influence of DS replacement levels on the engineering properties of dune sand concrete (DSC) beam, the mechanical properties of DSC and the flexural behaviour of DSC beam were examined with the DS replacement levels ranged from 0% to 80%. Based on the test results, the equations for DSC were proposed to describe the effect of DS replacement levels on mechanical properties of DSC. Meanwhile, the crack pattern and failure modes of DSC beams were investigated, the formula to calculate flexural strength of DSC beam was established, and the concrete strain, strains in reinforcement and load-deflection curve of beams were discussed.

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Effect of flexural CFRP sheets on shear resistance of reinforced concrete beams

Cited by 79 publications

References 11 publications

Compressive behaviour of partially FRP confined concrete: Experimental observations and assessment of the stress-strain models

Compressive behaviour of partially FRP confined concrete: Experimental observations and assessment of the stress-strain models

Efficient near surface mounting CFRP strengthening of pretensioned hollowcore slabs with opening – An experimental study

Experimental evaluation of the effort of dune sand replacement levels on flexural behaviour of reinforced beam

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