Experimental Study on Normal-Strength, High-Strength and Ultrahigh-Strength Concrete Confined by Carbon and Glass FRP Laminates

Oliveira, Diego Sales de; Raiz, Victor; Carrazedo, Ricardo

doi:10.1061/(asce)cc.1943-5614.0000912

Cited by 35 publications

(10 citation statements)

References 24 publications

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“…15. The stress-strain curves imply that the one CFRP layer provides a low confinement pressure to the concrete core and this observation is in agreement with Oliveira et al, 2019 [22]. However, even if the partial wrapping didn't significantly improve strength, it enhanced the concrete ductility and coincided with previous studies investigating the responses with low confining pressure [23], as illustrated in the ductility section.…”

Section: The Effect Of the Number Of Layers On Partial Confinement Co...supporting

confidence: 90%

Analysis of CFRP Confined Concrete Cylinders by using ABAQUS Software

Hardan¹,

Aules²

2022

Tikrit j. eng. sci.

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The fiber-reinforced polymer (FRP) wrapping is widely used in concrete column strengthening, as it can enhance concrete strength and ductility. This study aims to develop finite element numerical model that can capture the behavior of the short cylinder column confined with CFRP. After validating the proposed finite element models with previous experimental works, a series of parametric studies have been conducted, including, CFRP number of layers, concrete grade, confinement configuration, and size of samples are investigated in terms of stress-strain curves, ductility, and volumetric strain. The results indicate a significant improvement in concrete strength after fully CFRP wrapping. However, the partial confinement records less improvement in concrete strength but considerable ductility. By increasing the specimen’s size and maintaining the same confinement ratio, the strength enhancement was decreased. Based on this observation; it can be concluded that; by increasing the samples sizes, it should be escorted with more confining ratio than that of the small size. Moreover, it was concluded that as the number of layers increases the ductility increases whether it was full or partial confinement configuration. The CFRP confinement can control the specimen’s dilation during the axial compression test thus presenting less volumetric strain. The proposed formula by (Lam & Teng, 2003) that can predict the stress-strain response of FRP full confined concrete cylinder was compared with the corresponding values. The results indicated that; a good matching was noticed only for the samples located in the same area that was studied by (Lam & Teng, 2003).

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Section: The Effect Of the Number Of Layers On Partial Confinement Co...supporting

confidence: 90%

Analysis of CFRP Confined Concrete Cylinders by using ABAQUS Software

Hardan¹,

Aules²

2022

Tikrit j. eng. sci.

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“…An experimental study conducted by Oliveira et al [1] revealed that the capability of confinement strategy for improving the axial response of FRP fully confined concrete columns (FFC as illustrated in Fig. 1) is a function of the type of FRP material, concrete compressive strength, and confinement stiffness, which was also confirmed by Lim and Ozbakkaloglu [2][3][4].…”

Section: Introductionmentioning

confidence: 62%

Generalized Analysis-oriented model of FRP confined concrete circular columns

Shayanfar

Barros

Rezazadeh

2021

Composite Structures

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“…2 ) unidirectional basalt fabric provided by the Basalt fiber tech Australia. 21 Glass FRP was manufactured using 460 g/ m 2 (6.5 × 10 -4 lb/in. 2 ) unidirectional E-glass fabric.…”

Section: Fiber-reinforced Polymer (Frp)mentioning

confidence: 99%

Basalt Fiber-Reinforced Polymer-Confined Geopolymer Concrete

Aḥmad

Hadi

2021

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This paper investigates the behavior of basalt fiber-reinforced polymer (BFRP) confinement on geopolymer concrete (GPC) cylinders under axial monotonic compression. Results were compared with glass fiber-reinforced polymer (GFRP) confinement on GPC cylinders. Effects of confinement on failure mode, stressstrain behavior, peak axial compressive stress, and ultimate axial strain of the tested specimens were ascertained and discussed. It was observed that the confinement of BFRP is more effective than the GFRP due to the higher elastic modulus and larger rupture strain of the former. Results were also compared with the existing stress-strain models for FRP confined ordinary portland cement concrete (OPC). It was observed that the existing stress-strain models generally cannot provide accurate predictions of the stressstrain behavior of FRP confined GPC. It was concluded that BFRP confined GPC can be considered as a sustainable alternative to the FRP confined OPC.

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Experimental Study on Normal-Strength, High-Strength and Ultrahigh-Strength Concrete Confined by Carbon and Glass FRP Laminates

Cited by 35 publications

References 24 publications

Analysis of CFRP Confined Concrete Cylinders by using ABAQUS Software

Analysis of CFRP Confined Concrete Cylinders by using ABAQUS Software

Generalized Analysis-oriented model of FRP confined concrete circular columns

Basalt Fiber-Reinforced Polymer-Confined Geopolymer Concrete

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