A Stress-Strain Model for Concrete Cylinders Confined by Carbon Fiber Sheets

Hosotani, Manabu; Kawashima, Koichiro; Hoshikuma, Jun-ichi

doi:10.2208/jscej.1998.592_37

Cited by 18 publications

(17 citation statements)

References 4 publications

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“…The use of fiber reinforced polymers (FRP) jackets as an external mean to strengthen existing RC columns has emerged in recent years with very promising results [1,3,4,7,8]. Especially for circular columns, such technique has proved to be very effective in enhancing their ductility and axial load capacity [2,12,25]. Recently many studies have been conducted to evaluate the ultimate strength and strain enhancement of FRP-confined concrete [14,15,21,22,26,28,[31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Stress–strain model for concrete confined by FRP composites

Youssef

Feng

Mosallam

2007

Composites Part B: Engineering

379

190

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In this paper, a stress-strain model for concrete confined by fiber reinforced polymer (FRP) composites is developed. The model is based on the results of a comprehensive experimental program including large-scale circular, square and rectangular short columns confined by carbon/epoxy and E-glass/epoxy jackets providing a wide range of confinement ratios. Ultimate stress, rupture strain, jacket parameters, and cross-sectional geometry were found to be significant factors affecting the stress-strain behavior of FRP-confined concrete. Such parameters were analyzed statistically based on the experimental data, and equations to theoretically predict these parameters are presented. Experimental results from this study were compared to the proposed semi-empirical model as well as others from the literature.

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Section: Introductionmentioning

confidence: 99%

Stress–strain model for concrete confined by FRP composites

Youssef

Feng

Mosallam

2007

Composites Part B: Engineering

379

190

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“…Within this stage, the experimental results indicate that the curve exhibits a linear up to the rupture of the jacket. Depending on the cross section geometry of the specimen and the confinement ratio provided [5], the stress-strain diagram may be ascending and descending. But the descending stress-strain diagram is not found in our experiment.…”

Section: F Analysis Of Axial Stress-strain Curves Of Concretementioning

confidence: 99%

Experimental study on deformation properties of square concrete columns confined with CFRP at low temperatures

Fu²

2011

2011 International Conference on Electric Technology and Civil Engineering (ICETCE)

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An investigation of deformation properties of square concrete columns confined with CFRP sheets at low temperatures were carried out experimentally. The experimental results showed that the CFRP sheets can increase the bearing and deformation capacity of concrete columns effectively at low temperatures. And the experimental curves show that area of plastic deformation increases, the curves become more stable and slow, and the peak strain increases with increasing usage of the CFRP sheets. The curves of N/N u vs. strain of steel and CFRP at different temperatures are almost the same, which indicates that the temperature has little effect on the deformation of steel and CFRP. However, the curves of N/N u vs. strain of concrete are different, which indicates that the temperature has an obvious effect on the deformation of concrete.

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“…A number of nonlinear models were proposed in previous studies to describe the complete stress-strain response of FRP confined concrete [12,19]. In a recent study by Saiidi et al [20], it was shown that a bilinear idealization for the stress-strain response of FRP confined concrete can yield accurate estimates of strength and deformation capacity of columns when compared to estimates obtained through the use of more complicated material models.…”

Section: Stress-strain Behaviormentioning

confidence: 99%

Design of FRPs in circular bridge column retrofits for ductility enhancement

Binici

2008

Engineering Structures

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A Stress-Strain Model for Concrete Cylinders Confined by Carbon Fiber Sheets

Cited by 18 publications

References 4 publications

Stress–strain model for concrete confined by FRP composites

Stress–strain model for concrete confined by FRP composites

Experimental study on deformation properties of square concrete columns confined with CFRP at low temperatures

Design of FRPs in circular bridge column retrofits for ductility enhancement

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