Axial Response of Concrete-Filled FRP Tube (CFFT) Columns with Internal Bars

Ahmed, Asmaa Abdeldaim; Masmoudi, Radhouane

doi:10.3390/jcs2040057

Cited by 13 publications

(2 citation statements)

References 21 publications

(37 reference statements)

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“…As the composite section approaches its ultimate bending capacity and the lower flange begins to yield due to heavy loading, a cover plate is provided to extend the beam's load-bearing ability. Furthermore, the effect of internal bars on the axial response of concrete-filled fiberglass tube (CFFT) columns was studied [4,8]. A total of seven CFFTs and three RC columns were designed and tested under cyclic axial loading for failure to serve as control specimens for comparison.…”

Section: Introductionmentioning

confidence: 99%

Sawdust-Based Concrete Composite-Filled Steel Tube Beams: An Experimental and Analytical Investigation

et al. 2023

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Incorporating waste byproducts into concrete is an innovative and promising way to minimize the environmental impact of waste material while maintaining and/or improving concrete’s mechanical characteristics and strength. The proper application of sawdust as a pozzolan in the building industry remains a significant challenge. Consequently, this study conducted an experimental evaluation of sawdust as a fill material. In particular, sawdust as a fine aggregate in concrete offers a realistic structural and economical possibility for the construction of lightweight structural systems. Failure under four-point loads was investigated for six concrete-filled steel tube (CFST) specimens. The results indicated that recycled lightweight concrete performed similarly to conventional concrete when used as a filler material in composite steel tube beams. The structural effects of sawdust substitution on ultimate load and initial stiffness were less substantial than the relative changes in the material properties, and the ultimate capacity of the tested samples decreased moderately as the substitution percentage of sawdust increased. Moreover, the maximum load capacity was observed to decrease by 6.43–30.71% for sawdust replacement levels between 5% and 45.1% across all tested samples. Additionally, when using lightweight concrete with 5% sawdust, the moment value of the CFST sample was reduced by 6.4%. Notably, the sawdust CFST samples exhibited a flexural behavior that was relatively comparable to that of the standard CFST samples.

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Section: Introductionmentioning

confidence: 99%

Sawdust-Based Concrete Composite-Filled Steel Tube Beams: An Experimental and Analytical Investigation

et al. 2023

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“…A number of experimental studies have been conducted to investigate the axial compressive behaviour of CFFTs over the last two decades. Under axial loads, the FRP tube confines the concrete by reducing its lateral expansion, and therefore it increases its ultimate strain and strength [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns

et al. 2021

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The existence of either eccentricity or slenderness has a significant effect on the mechanical properties of a structure or member. These properties can change the working mechanism, failure mode, and bearing capacity of the structure or member. A concrete-filled, glass fibre-reinforced, polymer tube composite column has the same problem. We carried out experiments on the influences of eccentricity and slenderness on the mechanical properties of concrete-filled, glass fibre-reinforced, polymer tube composite columns. The experimentally recorded stress–strain relationships are presented graphically, and the ultimate axial stresses and strains and the FRP tube hoop strains at rupture were tabulated. The results indicate that the influences of slenderness and eccentricity on the composite columns were significant with regard to the axial strain, hoop strain, ultimate bearing capacity, lateral displacement, and failure mode. Based on the existing research literature and the results reported in this paper, the bearing capacity formula of a composite slender column under an eccentric load was established. The theoretical results were in good agreement with the experimental results.

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Axial Behavior of Concrete Filled Pultrutded FRP Box

Ramadan

ElGawady

2021

Design and Construction of Smart Cities

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Axial Response of Concrete-Filled FRP Tube (CFFT) Columns with Internal Bars

Cited by 13 publications

References 21 publications

Sawdust-Based Concrete Composite-Filled Steel Tube Beams: An Experimental and Analytical Investigation

Sawdust-Based Concrete Composite-Filled Steel Tube Beams: An Experimental and Analytical Investigation

Influences of Slenderness and Eccentricity on the Mechanical Properties of Concrete-Filled GFRP Tube Columns

Axial Behavior of Concrete Filled Pultrutded FRP Box

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