Behavior of One-Way Concrete Slabs Reinforced with GFRP Bars

Chang, Kug Kwan; Seo, Dae-Won

doi:10.3130/jaabe.11.351

Cited by 33 publications

(8 citation statements)

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“…To systematically investigate the significance of the five input parameters and their two-way interactions on the response variable, which is the ultimate shear capacity, a widely used method, namely the three-level (3 k ) fractional factorial DOE was utilized in this study [55,56], where k represents the number of parameters [55]. In multi-variable studies, factorial DOE is commonly used as the most efficient method to identify the significant factors and interactions that influence the response variable [55][56][57] The levels of each parameter are selected based on a thorough literature review on FRP-RC slabs [9,12,[15][16][17][18][19]58]. The width of all slabs was fixed to 1000 mm as this is a common unit strip width used in designing and analyzing one-way slabs.…”

Section: Key Parameters and Fractional Factorial Design Of Experimentsmentioning

confidence: 99%

“…For the validation of the proposed model, an experimental database of 49 one-way slabs that failed in shear was collected [12,15,16,67,75,76]. The main variables of the collected database with their ranges are listed in Table 5.…”

Section: Experimental Verification and Comparisonmentioning

confidence: 99%

“…10. Experimental Vs predicted shear capacities for the experimental database collected from the literature [12,15,16,25,67,75,76].…”

Section: Experimental Verification and Comparisonmentioning

confidence: 99%

“…Lately, basalt FRP (BFRP) bars have been attracting considerable interest due to their comparable mechanical and chemical properties to that of GFRP bars [5][6][7] and substantially better cost efficiency than CFRP bars [8]. However, their application for reinforcing one-way RC slabs is scarce [9][10][11] compared to that of other types of FRP bars [12][13][14][15][16][17][18][19]. Moreover, the existing studies primarily focused on studying the flexural behavior of one-way RC slabs reinforced with BFRP bars [9][10][11], while studies are still lacking concerning their shear behavior.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Sensitivity analysis and genetic algorithm-based shear capacity model for basalt FRC one-way slabs reinforced with BFRP bars

Al-Hamrani

Wakjira

Alnahhal

et al. 2023

Composite Structures

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Section: Key Parameters and Fractional Factorial Design Of Experimentsmentioning

confidence: 99%

Section: Experimental Verification and Comparisonmentioning

confidence: 99%

“…10. Experimental Vs predicted shear capacities for the experimental database collected from the literature [12,15,16,25,67,75,76].…”

Section: Experimental Verification and Comparisonmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Sensitivity analysis and genetic algorithm-based shear capacity model for basalt FRC one-way slabs reinforced with BFRP bars

Al-Hamrani

Wakjira

Alnahhal

et al. 2023

Composite Structures

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“…It can be seen that the stiffness of the slabs reinforced with GFRP bars was significantly reduced after the initiation of cracks in comparison to the steel-reinforced slabs. Studies also suggested that higher reinforcement ratios are needed to ensure enough flexural stiffness for deflection control (Chang & Seo, 2012;Wiater & Siwowski, 2020).…”

Section: Journal Of Sustainablementioning

confidence: 99%

Flexural Behaviour of Two Ribbed SFRC Slab Reinforced with GFRP Bars

Baharin,

Ahmad,

Hizdrami

2023

JSCET

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This study presents the results of an experimental investigation on the application of steel fibres (SF) in combination with glass fibre reinforced polymer (GFRP) bars as the steel reinforcement replacement in a ribbed slab structure. The promising ability of steel fibre reinforced concrete (SFRC) to reduce the formation of cracks and increase the tensile strength of concrete has made it an attractive composite material for numerous civil construction applications. However, previous research had shown that the performance of the steel fibres on their own to replace steel reinforcements is still in doubt. Therefore, the GFRP bar is chosen due to its structural performance with flexural reinforcement with less weight and corrosion resistance. The influence of the steel fibres and GFRP bars on the two-ribbed slab flexural performance was investigated. Three (3) numbers of slab panels were cast, consisting of one solid SFRC slab (solid-SF), one SFRC ribbed slab (rib-SF), and one SFRC ribbed slab reinforced with GFRP bars (rib-SF-GFRP). All slab samples measuring 1000 mm x 1500 mm x 75 mm thickness were tested under bending and the results showed that the SFRC ribbed slab reinforced with GFRP (rib-SF-GFRP) is efficient in the flexural performance by exhibiting the highest first crack and ultimate load.

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Flexural behaviour of concrete slabs reinforced with GFRP bars and hollow composite reinforcing systems

Al-Rubaye

Manalo

Alajarmeh

et al. 2020

Composite Structures

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Solid concrete slabs are very important structural members in building and construction because traditional slabs reinforced with steel carry the load and transfer it to the beam. However, steel reinforcement corrodes, which affects the integrity of concrete structures by reducing their strength and serviceability, thus leading to failure. For this reason, non-corrosive Glass Fibre Reinforced Polymer (GFRP) bars are an effective alternative reinforcement in concrete slabs. Moreover, concrete slabs are very heavy and make up a high percentage of the dead load in a building structure; this in turn means that more concrete is needed. There is therefore a crucial need for lighter slabs with a better structural performance and this can be provided by Hollow Core Slabs (HCS). However, HCS slabs contain internal voids which cause premature shear failure and the walls to collapse. In response, a hollow Composite Reinforcing System (CRS), with four flanges to improve their bond to concrete, has been developed to stabilise the voids in concrete members. This study investigates the flexural behaviour of concrete slabs reinforced with FRP bars and CRS. Four slabs (a solid slab reinforced by GFRP, a hollow slab reinforced by GFRP, a slab reinforced by GFRP and CRS, and a slab reinforced by steel and CRS) were tested under fourpoint static bending to better understand the structural performance of this new construction system. The results proved that solid and hollow slabs behaved similarly due to the voids located in the areas under compressive stress, and that CRS enhanced the structural performance of hollow core concrete slabs by 85%, while the stiffness of GFRP reinforced hollow slabs and the load carrying capacity increased by 32%. CRS was found to be more compatible with GFRP bars than steel bars due to their similar modulus of elasticity. A theoretical evaluation of the behaviour of concrete slabs reinforced with GFRP bars and CRS using the Fibre Model Analysis was also carried out. This FMA considered the tensile strength of concrete and the flanges of CRS, and found that the predicted failure load was only 13% less than the failure load measured experimentally. Important parameters such as the number of voids, the compressive strength of concrete, and the reinforcement ratio were also analysed with regards to the overall behaviour of the slabs. The results of this study provide useful information for the construction industry on the structural performance of concrete slabs utilising CRS and for the effective and safe design of such a construction system. ii Certification of Thesis This Thesis is entirely the work of Mohammed Baqer Ahmed Al-Rubaye except where otherwise acknowledged. The work is original and has not previously been submitted for any other award, except where acknowledged.

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Behavior of One-Way Concrete Slabs Reinforced with GFRP Bars

Cited by 33 publications

References 1 publication

Sensitivity analysis and genetic algorithm-based shear capacity model for basalt FRC one-way slabs reinforced with BFRP bars

Sensitivity analysis and genetic algorithm-based shear capacity model for basalt FRC one-way slabs reinforced with BFRP bars

Flexural Behaviour of Two Ribbed SFRC Slab Reinforced with GFRP Bars

Flexural behaviour of concrete slabs reinforced with GFRP bars and hollow composite reinforcing systems

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