Flexure Performance of Externally Bonded CFRP Plates-Strengthened Reinforced Concrete Members

Yuan, Xin; Zhu, Chaoyu; Zheng, Wei; Hu, Jiangbei; Tang, Baijian

doi:10.1155/2020/2604024

Cited by 6 publications

(2 citation statements)

References 25 publications

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“…Yuan conducted experimental testing on CFRP-plate-reinforced concrete beams, and the results were discussed in terms of load deflection, failure modes, and crack propagation. He found that the postcracking stiffness and bearing capacity can be improved by adopting additional anchoring measures [ 32 ].…”

Section: Literature Reviewmentioning

confidence: 99%

Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms

Qureshi

Saleem²,

Khurram³

et al. 2022

Materials

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The utilization of carbon-fiber-reinforced polymer (CFRP) composites as strengthening materials for structural components has become quite famous over the last couple of decades. The present experimental study was carried out to examine the effect of varied widths of externally bonded CFRP on the debonding strain of CFRP and the failure mode of plain concrete beams. Twelve plain concrete prims measuring 100 mm × 100 mm × 500 mm were cast and tested under identical loading conditions. The twelve specimens include two control prisms, i.e., without CFRP strips, and the remaining ten prisms were reinforced with CFRP strips with widths of 10 mm, 20 mm, 30 mm, 40 mm, and 50 mm, respectively, i.e., two prisms in each group. Four-point loading flexural testing was carried out, and the resulting data are presented in the form of peak load vs. midpoint displacement, load vs. concrete strain, and load vs. CFRP strain. The peak load was directly recorded from the testing machine, while the midpoint deflection was recorded through the linear variable differential transducer (LVDT) installed at the midpoint. To measure the strain, two separate strain gauges were installed at the bottom of each concrete prism, i.e., one on the concrete surface and the other on the surface of the CFRP strip. The results of this study indicate that the debonding strain is a function of CFRP strip width and that the failure patterns of beams are significantly affected by the CFRP reinforcement ratio.

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Section: Literature Reviewmentioning

confidence: 99%

Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms

Qureshi

Saleem²,

Khurram³

et al. 2022

Materials

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show abstract

“…The FRP materials are more attractive than steel, primarily due to higher strength-to-weight ratio, resistance to many chemicals and metal-corrosive agents as well as easier handling and installation. Thus, external bonding of FRP plates has become a widely popular method for the strengthening of different RC structural members such as beams, columns and slabs [20], [21].…”

Section: Introductionmentioning

confidence: 99%

Performance of composite connections strengthened with CFRP laminate

Ramezani¹

2020

Preprint

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A three-dimensional non-linear finite element model is developed to predict the moment-rotational response of partial depth endplate composite connections strengthened with external Carbon Fiber Reinforced Polymer (CFRP) laminates. A parametric study is then performed to evaluate the influence of length, width and thickness of CFRP laminates on the composite connection performance. In addition, the feasibility of decreasing the reinforcement bar ratios in the presence of the CFRP laminate is investigated. The numerical analysis reveals that the flexural resistance of the retrofitted CFRP strengthened composite connection increases by up to around 20% and the rotation capacity decreases by approximately 60%. Also, the results indicate that applying CFRP laminate to the tension face of the composite slab can reduce the amount of rebar needed for the bending capacity of steel-concrete composite beam-to-column connections.

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Post-Peak crack control of concrete with BFRP grids

Kim

Solanki²

2021

Construction and Building Materials

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Flexure Performance of Externally Bonded CFRP Plates-Strengthened Reinforced Concrete Members

Cited by 6 publications

References 25 publications

Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms

Investigation of CFRP Reinforcement Ratio on the Flexural Capacity and Failure Mode of Plain Concrete Prisms

Performance of composite connections strengthened with CFRP laminate

Post-Peak crack control of concrete with BFRP grids

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