Punching Shear Behavior of Two-Way Concrete Slabs Reinforced with Glass-Fiber-Reinforced Polymer (GFRP) Bars

Ju, Man Ki; Park, Kyoungsoo; Park, Cheolwoo

doi:10.3390/polym10080893

Cited by 36 publications

(17 citation statements)

References 9 publications

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“…Significant analytical and experimental studies have been reported so far on the behavior of Glass-FRP (G-FRP) reinforced beams under various loadings [19,[36][37][38][39][40][41][42][43]. In these cases, it is important to be mentioned that the modulus of elasticity of C-FRP bars, although lower than the one of the steel bars, it is three to four times higher than that of the G-FRP bars and furthermore C-FRP bars also exhibit substantially higher strength than G-FRP.…”

Section: Comparisons Of Deflections With G-frp Reinforced Beamsmentioning

confidence: 99%

“…As main advantages of FRP bars in comparison to the conventional steel bars can be considered the high corrosive-resistant behavior, the high tensile strength in the direction of the fibers and their lightweight non-magnetic characteristics. Due to these attractive characteristics, the application of FRP bars as internal reinforcement in RC structural members under monotonic or/and seismic loading has been examined recently [14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…In recent decades a lot of experimental research has been conducted for the behavior of concrete beams reinforced with G-FRP beams. It has reported that G-FRP reinforced beams experience higher deflections and larger crack widths compared to beams traditionally reinforced with steel bars [19]. This is attributed to the low elastic modulus of GFRP bars as documented in the ACI 440.1R-15 guidelines for the design and construction of concrete members and structures reinforced with FRPs [22].…”

Section: Introductionmentioning

confidence: 99%

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Reinforced Concrete Beams with Carbon-Fiber-Reinforced Polymer Bars—Experimental Study

Karayannis

Kosmidou

Chalioris

2018

Fibers

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Innovative reinforcement as fiber-reinforced polymer (FRP) bars has been proposed as alternative for the substitution of the traditional steel bars in reinforced concrete (RC) structures. Although the advantages of this polymer reinforcement have long been recognised, the predominantly elastic response, the reduced bond capacity under repeated load and the low ductility of RC members with FRP bars restricted its wide application in construction so far. In this work, the behavior of seven slender concrete beams reinforced with carbon-FRP bars under increasing static loading is experimentally investigated. Load capacities, deflections, pre-cracking and after-cracking stiffness, sudden local drops of strength, failure modes, and cracking propagation have been presented and commented. Special attention has been given in the bond conditions of the anchorage lengths of the tensile carbon-FRP bars. The application of local confinement conditions along the anchorage lengths of the carbon-FRP bars in some specimens seems to influence their cracking behavior. Nevertheless, more research is required in this direction. Comparisons of experimental results for carbon-FRP beams with beams reinforced with glass-FRP bars extracted from recent literature are also presented and commented. Comparisons of the experimental results with the predictions according to ACI 440.1R-15 and to CSA S806-12 are also included herein.

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Section: Comparisons Of Deflections With G-frp Reinforced Beamsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Reinforced Concrete Beams with Carbon-Fiber-Reinforced Polymer Bars—Experimental Study

Karayannis

Kosmidou

Chalioris

2018

Fibers

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“…In order to overcome these problems, fiber reinforced polymer (FRP) has been used. FRP exhibits several engaging properties, like a lower ratio of weight relative to strength, high durability, and simplicity of the installation [14][15][16][17][18]. Improvements in the shear characteristics of strengthened slab-column connections using FRP sheets have been previously reported [19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the Punching Load Capacity of Reinforced Concrete Slabs Using an External Epoxy-Steel Wire Mesh Composite

Jaafer

AlShadidi

Kareem

2019

Fibers

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The present experimental work investigates the applicability and performance of a new strengthening method for concrete slabs, intended to increase their punching resistance using combination layers of steel wire mesh with epoxy attached to the concrete slabs' tension face. Six simply supported square reinforced concrete slab specimens were tested up to failure under a central concentrated load. The main parameters in the study are the concrete compressive strength (30 MPa and 65 MPa) and the configuration of a bundle externally fixed to the tension side of the tested slabs. The experimental results appeared to greatly enhance the performance of the specimens, as they were externally strengthenined under this new method. When compared to the control slabs, the punching load and stiffness of the strengthened slabs increased up to 28% and 21%, respectively.

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“…Recently there is a lot of experimental research has been conducted to investigate the behavior of concrete beams reinforced with FRP beams. Particularly for GFRP, It has reported that GFRP reinforced beams experience higher deflections and larger crack widths when compared to traditionally reinforced beams with steel bars [11][12][13]. In addition, the low post cracking and flexural stiffness have been exhibited with these beams.…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of the Behavior of Reinforced Concrete Beam Reinforced with FRP Bars

Mohammed

Zhou

2019

Civ Eng J

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In this study, the behavior of reinforced concrete beams reinforced with FRP bars was investigated. A total of seventeen models were carried out based on the finite element software (ABAQUS). The concrete damage plasticity modeling was considered. Two types of fiber polymer bars, CFRP and GFRP as longitudinal reinforcement for concrete beam were used. The validation of numerical results was confirmed by experimental results, then the parametric study was conducted to evaluate the effect of change in different parameters, such as (diameter size, number of bars), type of FRP bars, longitudinal arrangement for FRP bars. All results were analyzed and discussed through, load-deflection diagram, according, to the difference parameter considered. The results showed that the use of FRP bars in rebar concrete beam improves the beam stiffness and enhance the cracking load. The load capacity enhanced in the range of (7.88-64.82%) when used CFRP bars. The load-carrying capacity of beams strengthened with CFRP is higher than that of strengthened with GFRP. Furthermore, the use of FRP bars in bottom and steel in top reinforcement is useful to overcome the large deflection, and improving the beam ductility. Finally, the results of finite element models were compared with the prediction equation, according to ACI440.1R-15.

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Punching Shear Behavior of Two-Way Concrete Slabs Reinforced with Glass-Fiber-Reinforced Polymer (GFRP) Bars

Cited by 36 publications

References 9 publications

Reinforced Concrete Beams with Carbon-Fiber-Reinforced Polymer Bars—Experimental Study

Reinforced Concrete Beams with Carbon-Fiber-Reinforced Polymer Bars—Experimental Study

Enhancing the Punching Load Capacity of Reinforced Concrete Slabs Using an External Epoxy-Steel Wire Mesh Composite

Numerical Investigation of the Behavior of Reinforced Concrete Beam Reinforced with FRP Bars

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