Experimental and numerical investigation on the deflection behavior of pre-cracked and repaired reinforced concrete beams with fiber-reinforced polymer

Hamrat, Mostefa; Bouziadi, Farid; Boulekbache, Bensaid; Daouadji, Tahar Hassaine; Chergui, Selma; Labed, Abderahim; Amziane, Sofiane

doi:10.1016/j.conbuildmat.2020.118745

Cited by 52 publications

(23 citation statements)

References 40 publications

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“…The longitudinal and transverse reinforcement were modelled with a two-node spar element, LINK180, as shown in Fig. 15(c) [44][45][46][47][48][49].…”

Section: Description Of Elementsmentioning

confidence: 99%

Experimental and nonlinear finite element analysis of shear behaviour of reinforced concrete beams

et al. 2021

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“…The longitudinal and transverse reinforcement were modelled with a two-node spar element, LINK180, as shown in Fig. 15(c) [44][45][46][47][48][49].…”

Section: Description Of Elementsmentioning

confidence: 99%

Experimental and nonlinear finite element analysis of shear behaviour of reinforced concrete beams

et al. 2021

Self Cite

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“…Ductility and energy dissipation were shown to increase in cyclic load cases [32]. Moreover, both CFRP and GFRP strengthening have been shown to be effective for enhancing the flexural performance of reinforced concrete beams [33] as well as pre-cracked reinforced concrete beams [34]. As previous studies on FRP show significant improvements in structural performance, the use of both CFRP and GFRP are promising options for the reinforcement of steel sections.…”

Section: Introductionmentioning

confidence: 84%

Performance of FRP strengthened full-scale simply-supported circular hollow steel members under monotonic and large-displacement cyclic loading

Tafsirojjaman

Fawzia

Thambiratnam

et al. 2021

Engineering Structures

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Steel structures are becoming more common in engineering construction as steel possesses excellent ductility, but steel members are often vulnerable to buckling, especially under seismic or cyclic loading. Hollow structural sections (HSS) often buckle locally under loading due to their thin steel walls and the need for rehabilitation and strengthening is increasing. In the present study, circular hollow section (CHS) steel members have been strengthened with both carbon fibre reinforced polymer (CFRP) and glass fibre reinforced polymer (GFRP). Their structural performance, along with that of their bare counterparts, is investigated subjected to monotonic and quasi-static large-displacement cyclic loading experimentally. The types of FRP reinforcement (CFRP and GFRP) and the loading condition (monotonic and cyclic) are chosen as two main parameters in the test program. Results reveal the significant structural improvements of the strengthened CHS members under monotonic and cyclic loading. The ultimate moment capacities of the beams under monotonic and cyclic loading are enhanced by 51.0% and 35.4% respectively with CRFP strengthening and 43.3% and 31.5% respectively with GFRP strengthening compared to the bare beam. In addition, all the FRP strengthened specimens achieved higher moment capacities, rotational capacities, stiffness, energy dissipation capacities and ductility in comparison to their bare counterparts. Moreover, there is a good agreement found between the experimental and theoretically predicted ultimate moment capacities of the bare and strengthened CHSs with a mean ratio of 1.04 and a COV of 0.05.

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“…If the designer decides not to use the minimum thicknesses given in Table 1, then he or she will be forced to determine the actual deflections, which must not exceed the values in Table 2. Elastic methods are used to obtain and determine the equations to define the slope and elastic curve of a beam (Hamrat et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Comparative study of theoretical and real deflection of a simple and reinforced concret joist

Muñoz¹,

Pico

Pérez

et al. 2021

Ing. Inv.

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This research aims to determine the actual deflection of a concrete joist and to correlate the result with the theoretical deflection. This is based on the theories of elasticity as the double integration method, considering the homogeneous, isotropic and linearly elastic material from an ideal theoretical model. The construction of a concrete joist does not make a 100% homogeneous, isotropic and linearly elastic element, since its manufacture depends on many conditions such as the choice of aggregates, water, the manufacture of cement, tests carried out for the elaboration of the mix design, the operator who is going to perform the mix and the construction of the joist. The variation of the real deflection with respect to the theoretical one has been investigated. For this, 30 simple concrete joists and 30 reinforced concrete joists were manufactured. The dimensions of these joists were 15cm x15cmx53.5cm (b x h x L). The reinforcement of the last 30 joists was 4 Փ 1/4 "as longitudinal reinforcement and Փ 1/4" @ 0.10 m of transverse reinforcement. The joists were tested for flexion by measuring the maximum deflection and compared with the theoretical one, calculated by the double integration method, having much greater experimental results than those calculated with the theory of the double integration method, not being within the ranges expected in literature

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Experimental and numerical investigation on the deflection behavior of pre-cracked and repaired reinforced concrete beams with fiber-reinforced polymer

Cited by 52 publications

References 40 publications

Experimental and nonlinear finite element analysis of shear behaviour of reinforced concrete beams

Experimental and nonlinear finite element analysis of shear behaviour of reinforced concrete beams

Performance of FRP strengthened full-scale simply-supported circular hollow steel members under monotonic and large-displacement cyclic loading

Comparative study of theoretical and real deflection of a simple and reinforced concret joist

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