Bond behavior of FRP composites attached to concrete using EBROG method: A state-of-the-art review

Sanginabadi, Khaled; Yazdani, Amirnaser; Mostofinejad, Davood; Czaderski, Christoph

doi:10.1016/j.compstruct.2022.116060

Cited by 19 publications

(2 citation statements)

References 126 publications

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“…A beam strengthened with CFRP using the EBROG method is displayed in Figure 14 . Multiple studies have examined the effect of strengthening of RC members with this technique [ 195 , 196 , 197 , 198 , 199 , 200 , 201 , 202 ]. Wu et al [ 203 ] carried out double lap-shear tests on concrete blocks strengthened with CFRP sheets bonded externally using an epoxy adhesive with a relatively low Tg (ranging from 34 °C to 38 °C).…”

Section: Strengthening Techniquesmentioning

confidence: 99%

A State-of-the-Art Review on Structural Strengthening Techniques with FRPs: Effectiveness, Shortcomings, and Future Research Directions

Hammad,

Bahrami,

Khokhar

et al. 2024

Materials

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In the pursuit of creating more sustainable and resilient structures, the exploration of construction materials and strengthening methodologies is imperative. Traditional methods of relying on steel for strengthening proved to be uneconomical and unsustainable, prompting the investigation of innovative composites. Fiber-reinforced polymers (FRPs), known for their lightweight and high-strength properties, gained prominence among structural engineers in the 1980s. This period saw the development of novel approaches, such as near-surface mounted and externally bonded reinforcement, for strengthening of concrete structures using FRPs. In recent decades, additional methods, including surface curvilinearization and external prestressing, have been discovered, demonstrating significant additional benefits. While these techniques have shown the enhanced performance, their full potential remains untapped. This article presents a comprehensive review of current approaches employed in the fortification of reinforced cement concrete structures using FRPs. It concludes by identifying key areas that warrant in-depth research to establish a sustainable methodology for structural strengthening, positioning FRPs as an effective replacement for conventional retrofitting materials. This review aims to contribute to the ongoing discourse on modern structural strengthening strategies, highlight the properties of FRPs, and propose avenues for future research in this dynamic field.

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Section: Strengthening Techniquesmentioning

confidence: 99%

A State-of-the-Art Review on Structural Strengthening Techniques with FRPs: Effectiveness, Shortcomings, and Future Research Directions

Hammad,

Bahrami,

Khokhar

et al. 2024

Materials

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“…In practice, the use of composite materials is increasing [ 1 , 2 , 3 ]. In construction, they are most widely used in the restoration [ 4 , 5 , 6 ] and strengthening of structures [ 7 , 8 ], which have insufficient bearing capacity. The use of composite materials in construction is justified by their high tensile strength, low weight, manufacturability of reinforcement, and linear relationship between stresses and strains up to their destruction.…”

Section: Introductionmentioning

confidence: 99%

Strength of Compressed Reinforced Concrete Elements Reinforced with CFRP at Different Load Application Eccentricity

et al. 2022

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Currently, many studies are devoted to the use of polymer composite materials to increase the strength and stability of concrete elements. In compressed reinforced concrete elements, the bearing capacity depends on the eccentricity of the external application of the external force and the corresponding stress-strain state, as well as the location and number of composite materials glued to the surface of the structure. The choice of a scheme for placing composite materials depending on the stress state of the structure is an urgent scientific problem. At the same time, the issue of central compression and the compression of columns with large eccentricities has been well studied. However, studies conducted in the range of average eccentricities often have conflicting results, which is the problem area of this study. The primary aim of this study was to increase the strength and stiffness of compressed reinforced concrete elements reinforced with composite materials, as well as a comparative analysis of the bearing capacity of ten different combinations of external longitudinal, transverse, and combined reinforcement. The results of testing 16 compressed columns under the action of various eccentricities of external load application (e0/h = 0; 0.16; 0.32) are presented. It is shown that the use of composite materials in strengthening structures increases the bearing capacity up to 41%, and the stiffness of the sections increases up to 30%. Based on the results of the study, recommendations are proposed for improving the calculation method for inflexible columns reinforced in the transverse direction, which take the work of concrete under the conditions of a three-dimensional stress state into consideration.

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The flexural response of RC beams strengthened by EB/NSM techniques using FRP and metal materials: a state-of-the-art review

Megahed,

Seleem,

Badawy

et al. 2023

Innov. Infrastruct. Solut.

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Reinforced concrete (RC) beams strengthened in flexure using externally bonded (EB) or near-surface mounted (NSM) fiber-Reinforced Polymers (FRP) and metals have gained considerable interest over the last few decades. As few of the previous review papers concerned with NSM elements or both EB and NSM methods so this paper aimed to review the previous research that handled the behavior of RC beams strengthened by NSM and EB techniques, compared their advantages and disadvantages and reported the future recommendations. Moreover, the review focused on the effect of strengthening materials (metallic and FRP materials), strengthening method, strengthening elements characteristics (shape and area), and any other factors affecting the performance of the strengthened RC beams in each technique. The review demonstrated that the strengthening element’s failure mode significantly affects the RC beams’ load-carrying capacity strengthened by EB or NSM. Moreover, the type of FRP materials and the end anchorage significantly affect the load efficiency of the strengthened RC beams depending on the type of failure mode.

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Bond behavior of FRP composites attached to concrete using EBROG method: A state-of-the-art review

Cited by 19 publications

References 126 publications

A State-of-the-Art Review on Structural Strengthening Techniques with FRPs: Effectiveness, Shortcomings, and Future Research Directions

A State-of-the-Art Review on Structural Strengthening Techniques with FRPs: Effectiveness, Shortcomings, and Future Research Directions

Strength of Compressed Reinforced Concrete Elements Reinforced with CFRP at Different Load Application Eccentricity

The flexural response of RC beams strengthened by EB/NSM techniques using FRP and metal materials: a state-of-the-art review

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