Confinement of concrete with FRCM: Influence of bond aspects under cyclic axial loading

Toska, Klajdi; Faleschini, Flora; Zanini, Mariano Angelo

doi:10.1016/j.conbuildmat.2023.130432

Cited by 10 publications

(2 citation statements)

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“…When dealing with seismic actions the cyclic behavior when under axial or horizontal loading is of fundamental importance. The compressive cyclic behavior of FRCM-confined concrete was investigated recently by Colajanni et al [11] and some of the authors [12][13]. The experimental results showed that the stressstrain curve of FRCM-confined concrete specimens under monotonic loading matches the envelope of the cyclic stress-strain curve.…”

Section: Original Article Abstractmentioning

confidence: 92%

“…FRCM composites allow to overcome some disadvantages of FRPs as better compatibility with the concrete substrate, better performance at high temperatures and possibility apply it in both wet or dry surfaces. The effectiveness of FRCM application on retrofitting techniques has been extensively researched in the last years [10][11][12][13][14][15][16]. When dealing with seismic actions the cyclic behavior when under axial or horizontal loading is of fundamental importance.…”

Section: Original Article Abstractmentioning

confidence: 99%

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Seismic performance of RC bridge piers reinforced through FRCM confinement

Toska,

Zanini,

Faleschini

2023

ce papers

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Corrosion of reinforced concrete (RC) structures is one of the main issues concerning existing buildings and especially of infrastructures. Corrosion phenomena, that is induced mainly by carbonatation and by high chlorides concentration, can significantly affect the performance of existing structures. In particular, the seismic performance can be significantly affected. Loss of transversal reinforcement in RC elements can reduce the concrete ductility while corrosion affecting bending reinforcement reduces the lateral load‐bearing capacity of RC elements. To enhance the performance of corroded elements and extend service life of deteriorated structures confinement is one of the most effective and commonly used techniques. This paper investigates the deterioration of the seismic performance of a RC bridge affected by corrosion and retrofitted through FRCM confinement. Different deterioration and retrofitting scenarios are combined and seismic fragility curves are computed for each case. Finally, time‐variant seismic reliability profiles are used to evaluate the best retrofitting scenario and intervention time to maximize reliability gains.

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Section: Original Article Abstractmentioning

confidence: 92%

Section: Original Article Abstractmentioning

confidence: 99%

Seismic performance of RC bridge piers reinforced through FRCM confinement

Toska,

Zanini,

Faleschini

2023

ce papers

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Effect of high temperature on FRCM‐confined concrete

Toska,

Faleschini,

Beaucour

et al. 2024

Structural Concrete

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The paper investigates the effect of high temperature exposure on the performance of concrete confined through textile/fabric‐reinforced composites. Small‐scale cylindrical specimens (150 × 300 mm) were confined using two types of carbon fibers (dry and epoxy‐resin coated). For the sake of comparison, two confining layers were applied to all specimens. After curing, cylinders were exposed to four ranges of increasing temperatures—being 20°C (ambient), 80°C, 100°C, and 250°C and, after cooling down, were tested under compressive cyclic loading. The experimental results show that thermal stress significantly influences the confinement effectiveness of textile‐reinforced composites. Exposure to high temperatures reduces the ultimate confined strength and significantly influences the overall axial stress–strain behavior.

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