Crack width evaluation in FRP reinforced concrete members

Creazza, Giuseppe; Russo, Salvatore

doi:10.1007/bf02481561

Cited by 11 publications

(6 citation statements)

References 3 publications

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“…A statistical analysis is established by referring to certain experimental data deduced from certain experimental studies that dealt with the prediction of the crack widths in a GFRP-HW reinforced concrete element (Table 12). It can be noted that the calculated values of the crack width with the proposed analytical model have a good agreement with the experimental results [44][45][46].…”

Section: Resultssupporting

confidence: 74%

“…The cracks in the concrete appear once the concrete stress reaches the maximum tensile strength of the concrete. At the crack initiation, an immediate redistribution of stresses in the concrete or the rebar occurs and an axial tension force is applied at the cracked section [44,45]. The distance between two cracks is defined by the transfer length lt. During the development of a new crack and when the tensile strength of the concrete is reached, the transfer length is defined as the distance between two cracks.…”

Section: Figure 13 Gfrp Reinforced Concrete Tension-tie Membermentioning

confidence: 99%

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Comparative Study of GFRP and Steel Rebar Bonding in Concrete: Experimental Analysis and Crack Prediction

Sdiri,

Meddeb,

Ghorbel

et al. 2024

RCMA

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The glass fiber reinforced polymers (GFRP) bars are considered as an alternative to steel reinforcement in certain structures cases due to their non corrosive aspect. Perhaps, they exist with different surface treatment helically wrapped (GFRP-HW) and sand coated (GFRP-S). Thus, each rebar type is performed by a particular bond behavior with the concrete and it affects the concrete crack formations. In the first part of this paper, an experimental and analytical study of the bond behaviour between the (GFRP), rebars and concrete were carried-out. Pull out test tests have been applied on concrete cylindrical slabs in order to identify experimentally the bond behaviour between the self-compacting concrete and GFRP. Various parameters were taken in account in this experimental study: the rebar diameters, the concrete age, and the rebar roughness. Based on the experimental results, the failure mode of the bond specimens, the variation of the bond load, and the bond-slip variation are analyzed. Two failure modes of the GFRP rebars were experimentally identified: the pull-out failure mode and the splitting one. According to the experimental data, it was proven that the GFRP-S rebars and the steel ones exhibit a more bond performant than that of the GFRP-HW rebars. In the second part, an analytical identification of the BPE and the CMR models was established. Subsequently, a tension tie model was extended analytically in order to predict the crack patterns of concrete elements reinforced with the GFRP rebars and steel rebars. The expressions of the cracking parameters issued from the tension tie model have been developed. It can be deduced that the GFRP-HW and GFRP-S reinforced concrete element exhibits a longitudinal strain less than that of the steel reinforcement case. Hence, the GFRP reinforced element undergoes cracks that are characterized by more important width measurements than those of the cracks deduced from the case of the reinforced steel element. Finally, the stress-strain analytical diagram of a GFRP tension member has been plotted and compared to the steel tension element.

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Section: Resultssupporting

confidence: 74%

Section: Figure 13 Gfrp Reinforced Concrete Tension-tie Membermentioning

confidence: 99%

Comparative Study of GFRP and Steel Rebar Bonding in Concrete: Experimental Analysis and Crack Prediction

Sdiri,

Meddeb,

Ghorbel

et al. 2024

RCMA

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“…In recent decades, FRP composites have been widely used for constructing entire civil engineering structures and their elements (profiles, 60–62 columns, 63–69 floor, 70–75 concrete structure reinforcement, 76 and wall systems, 77 modular panels, 78 different types of staging, stairways and walkways, 79 and applications related to fencing, railings, and personal safety barriers 80 ). At the moment, all these elements made of composite materials are competitive solutions over their classical counterparts.…”

Section: Pultrusion Applicationsmentioning

confidence: 99%

Pultruded materials and structures: A review

Vedernikov

Safonov

Tucci

et al. 2020

Journal of Composite Materials

150

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Currently, the application of pultruded profiles is increasing owing to their advantages, such as light weight, high strength, improved durability, corrosion resistance, ease of transportation, speed of assembly, and nonmagnetic/nonconductive characteristics. This review analyzes the main application fields of elements produced by pultrusion manufacturing processes: bridges and bridge decks, cooling towers, building elements and complete building systems, marine construction, transportation, and energy systems. Analysis of the scientific literature in relation to the mechanical behavior of pultruded elements is presented as well. Finally, this review outlines the future study possibilities, giving the researchers and practitioners the directions for deeper investigation of specific features and exploration of new ones concerning the mentioned aspects of pultruded fiber-reinforced polymer composites.

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“…Nevertheless are still few the investigations on the bond between traditional and new material as concrete and FRP material. More generally, in the field of the adherence between two different materials, the literature show by now very different and numerous researches, of which on cite some related to the tension stiffening effect in presence of traditional and FRP bars [1,2], However the argument is very interesting due to the junction between these two materials that have a very different constitutive low. Indeed while on the concrete all is clear and sufficiently analyzed, in presence of GFRP material the level of knowledge is still growing [3].…”

Section: Introductionmentioning

confidence: 99%

Structural Performance of a New Column’s Prototype Made by FRP Pultruded Material and Light Concrete

Boscato

2014

AMR

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This investigation presents some evaluation based on the experimental and numerical results obtained on the compression bearing capacity of new columns prototype made by FRP (Fibre Reinforced Polymer) material and concrete. In detail that is the junction due to the assembly between hollow FRP profiles made by pultrusion process with glass fibres and thermosetting matrix vinylestere, and very light concrete casting inside. To better understand the eventually influence related to the hollow shape employed, the study consider both the case of circular and square profile. Due to the novel of the research, a not negligible part of the research is dedicated to test previous the separate material, that is the plane concrete and the hollow GFRP profile, and then the prototype (concrete+GFRP) also considering two different way of load application. Particularly we applied in the first case the load to only the core of the sample, on the plane concrete, and then to the total cross section. This choice allows to evaluate the role and the influence of the bond strength along the length of each sample.

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Crack width evaluation in FRP reinforced concrete members

Cited by 11 publications

References 3 publications

Comparative Study of GFRP and Steel Rebar Bonding in Concrete: Experimental Analysis and Crack Prediction

Comparative Study of GFRP and Steel Rebar Bonding in Concrete: Experimental Analysis and Crack Prediction

Pultruded materials and structures: A review

Structural Performance of a New Column’s Prototype Made by FRP Pultruded Material and Light Concrete

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