Bond-behavior improvement of carbon fiber reinforced polymer bars: an experimental study

Hassoon, Alaa; Khalid, Nibras N.; Shallal, Muhaned A.

doi:10.1007/s42107-022-00496-y

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…In this article, GFRP-reinforced (Aravind et al, 2019) concrete beams are studied for flexural performance. Different diameters of GFRP bars (Hassoon et al, 2023), as shown in Fig. 1, were used by adopting M30 grade and M40 grade concrete, and comparative study was conducted for load deflection plots for experimental and numerical analysis.…”

Section: Introductionmentioning

confidence: 99%

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Kinjawadekar,

Patil,

Nayak

et al. 2023

Preprint

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The use of alternative reinforcement in concrete structures in the form of glass fiber-reinforced polymer (GFRP) is a favorable option to the traditional reinforcement of steel. These bars possess unique features, including resistance to corrosion, an impressive tensile strength by weight ratio, and electromagnetic transparency, making them particularly appealing to the construction sector and structural engineers. The brittleness of GFRP bars significantly lowers the concrete beams’ ductility. Moreover, the significant deformations observed during the post-cracking phase is the effect of lower elastic modulus of these bars. The aim of this research study is to gain a deeper insight into the behaviour of structural members in flexure that are reinforced with GFRP bars. The failure modes were observed. The outcomes of load‒deflection performance are discussed. The fracture patterns observed in beams subjected to two point loading conditions have been documented for beams made of reinforced concrete that use both steel and GFRP as reinforcement. A finite element nonlinear analysis is performed using ABAQUS, to explore the exact response of specimens observed in experimental studies. A comparative study was performed between the experimental and numerical results.

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Section: Introductionmentioning

confidence: 99%

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Kinjawadekar,

Patil,

Nayak

et al. 2023

Preprint

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Structural behavior of jointed precast concrete beams reinforced with GFRP bars

Eldaleel,

Elgabbas,

Abdelaziz

et al. 2024

Engineering Structures

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Anchorage Research for CFRP Tendons: A Review

Li,

Shi,

Qiu

et al. 2024

Materials

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Carbon fiber reinforced polymer (CFRP) tendons are composite materials that offer significant advantages in terms of tensile strength and lightweight properties. They are being increasingly utilized in the construction industry, particularly in bridge cables and building structures. However, due to their relatively poor transverse mechanical properties compared to steel cables, securing these tendons with anchors presents a challenge. This paper reviews the structure and force characteristics of three types of anchors for CFRP tendons—clamping anchorage, bonded anchorage, and composite anchorage—analyzes and summarizes the anchorage characteristics and damage mechanisms of each type of anchorage, and highlights that the optimization of the mechanical properties of the tendons is key to the design and research of anchoring systems. The new composite anchorage offers comprehensive advantages, such as minimal tendon damage at the anchorage section, more uniform stress distribution, and better anchorage performance, despite being more complex in design compared to single-type anchorages. However, there remain challenges and research gaps in testing and validating these anchoring systems under realistic loading and environmental conditions, including impacts, cyclic stresses, humidity, and high temperatures. Future efforts should focus on developing new testing techniques and models to simulate real-world conditions, enabling more accurate assessments of anchorage performance and longevity. By doing so, we can fully harness the mechanical properties of CFRP tendons and further enhance the safety and efficiency of our built environment.

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Bond-behavior improvement of carbon fiber reinforced polymer bars: an experimental study

Cited by 3 publications

References 13 publications

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Flexural behavior of reinforced concrete beams with steel and GFRP reinforcement

Structural behavior of jointed precast concrete beams reinforced with GFRP bars

Anchorage Research for CFRP Tendons: A Review

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