Experimental and Analytical Study on Precast High-Strength Concrete Tunnel Lining Segments Reinforced with GFRP Bars

Hosseini, Seyed Mohammad; Mousa, Salaheldin; Mohamed, Hamdy M.; Eslami, Abolfazl; Benmokrane, Brahim

doi:10.1061/(asce)cc.1943-5614.0001257

Cited by 14 publications

(3 citation statements)

References 21 publications

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“…Based on Cornelissen et al [24], the concrete behaviour under tension was adopted. The concept equations as in equations (1,2) in which the relationship between the tensile stresses and the concrete crack width was described. These equations give all the required parameters that have to be entered in the numerical simulation.…”

Section: Constitutive Modelling Of the Materialsmentioning

confidence: 99%

“…One way to overcome this problem is to use fibre reinforcing polymer (FRP) bars instead of traditional steel reinforcing bars, although they are more expensive; however this is the most innovative technique. FRP bars have a high resistance to corrosion, high tensile strength and effortlessly applied [2]. Nevertheless, FRP reinforcement offers low ductility, low modulus of elasticity, and low bonding strength with concrete substrate that affect both the flexural strength and the shear behaviour of the concrete member [3].…”

Section: Introductionmentioning

confidence: 99%

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GFRP continuous RC beams having web openings and externally strengthened with CFRP composites

Abdulrahman

2024

Eng. Res. Express

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With the enormous development of modern buildings, it is highly required to accommodate web openings in continuous reinforced concrete (RC) beams for passing utility service equipment. A wide range of studies had been conducted with regard to this subject. wtCurrent study examined numerically the major effect of the large rectangular web openings in (GFRP) reinforced concrete continuous beams under concentrated loads. Moreover, it investigated the effects of different CFRP strengthening schemes that would retrieve the ultimate capacity of the solid beam. Based on that, the main parameters that had been utilized here are the opening size, opening location and the strengthening scheme. Results showed that openings reduced the ultimate load capacity of the beams and increased the overall deflections. Furthermore, using CFRP sheets to strengthen continuous RC beams including opening retrieved (70%) of the ultimate capacity of continuous RC solid beams especially beams with openings near the external support or midspan. Likewise, using CFRP composites retrieved (48%) of the ultimate capacity of continuous RC solid beams with openings near the interior support. Furthermore, the optimum location for constructing web openings was near the external supports, which was subjected to the lowest values of shear forces and sagging moments and leaded to accommodate greater ultimate loads (85.18 kN) than other beams of other openings location.

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Section: Constitutive Modelling Of the Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

GFRP continuous RC beams having web openings and externally strengthened with CFRP composites

Abdulrahman

2024

Eng. Res. Express

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“…The flexural and shear strength of segments reinforced with glass-fiber reinforced polymer (GFRP) is increased by HSC. It little affects the specimens' post-cracking stiffness and cracking behavior (Hosseini et al, 2022). The characteristics of ultra-highperformance concrete (UHPC) documented throughout the previous three decades are summaries by Sharma et al (2022) the material's development in two stages.…”

Section: Literature Reviewmentioning

confidence: 99%

Influence of triangle shape fiber in tunnel lining concrete: An innovative approach

katariwala

2023

Preprint

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Polypropylene (PP) fibers have properties suitable for reinforcement in concrete. Polypropylene Triangular Polyester Fiber Reinforced Concrete (PPT-PFRC) is a type of fiber reinforced concrete that uses a combination of PP and triangular polyester fibers to enhance the strength and durability of the concrete. The study analyses the properties of hardened concrete and PPT-PFRC mixes to study the axial force, shear force, and bending moment between normal and PPT-PFRC specimens. The researchers are currently attempting to analyze tunnel lining behavior in a static state, although FRC offers more advantages in seismic vibration and blast loading. The goal of this study is to investigate utilization of PPT-PFRC in a tube tunnel to improve the strength of the tunnel. The comparison shows that ordinary concrete has two significant flaws, i.e., poor strength and low strain, however, PPT-PFRC concrete has more toughness and vibration damping.

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Experimental Study of GFRP-Reinforced Precast Tunnel Segments with Shear Reinforcement Under Punching Loads

Elbady,

Mousa,

Mohamed

et al. 2024

Lecture Notes in Civil Engineering

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Experimental and Analytical Study on Precast High-Strength Concrete Tunnel Lining Segments Reinforced with GFRP Bars

Cited by 14 publications

References 21 publications

GFRP continuous RC beams having web openings and externally strengthened with CFRP composites

GFRP continuous RC beams having web openings and externally strengthened with CFRP composites

Influence of triangle shape fiber in tunnel lining concrete: An innovative approach

Experimental Study of GFRP-Reinforced Precast Tunnel Segments with Shear Reinforcement Under Punching Loads

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