CFRP Rehabilitation of Concrete Frame Joints with Inadequate Shear and Anchorage Details

Parvin, Azadeh; Altay, Selçuk; Yalçın, Cem; Kaya, Osman

doi:10.1061/(asce)cc.1943-5614.0000055

Cited by 55 publications

(20 citation statements)

References 8 publications

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“…a GHO = Ghobarah and Said [17], EL-AM = El-Amoury and Ghobarah [18], ANT = Antonopoulos and Triantafillou [19], GHO2 = Ghobarah and El-Amoury [21], PAR = Parvin et al [22], ALS = Al-Salloum et al considered and, thus, the proposed model cannot be extended to these applications. Once the effective FRP strain has been determined, it is plotted against the ratio (A f,eq E f )/f c 2/3 (Fig.…”

Section: Subassembly Characteristicsmentioning

confidence: 99%

“…Difficulties arise in the model definition once the main parameters affecting the mechanical behavior of the strengthening system are selected. The FRP effectiveness strongly depends on several parameters such as, the strengthening layout, amount of fibers, fiber mechanical properties, mechanical anchorages and surface preparation [16][17][18][19][20][21][22][23][24][25]. Furthermore the debonding phenomena makes it difficult to quantify the FRP benefits.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analytical model and design approach for FRP strengthening of non-conforming RC corner beam–column joints

Vecchio¹,

Ludovico²,

Prota³

et al. 2015

Engineering Structures

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Section: Subassembly Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analytical model and design approach for FRP strengthening of non-conforming RC corner beam–column joints

Vecchio¹,

Ludovico²,

Prota³

et al. 2015

Engineering Structures

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“…Corazao and Durrani, 1989;Ghobarah et al, 1996;Biddah et al,1997;Sasmal et al, 2011] Externally bonded fibre reinforced polymers (FRP)[e.g. Gergely et al,2000;Granata and Parvin,2001;Ghobarah and Said, 2001;Antonopoulos and Triantafillou,2003;Said and Nehdi,2004;Ghobarah and El-Amoury,2005;Pantelides and Gergely, 2008;Tsonos, 2008;Akguzel and Pampanin,2010;Alsayed et al,2010;Le-Trung et al,2010;Parvin et al,2010;Al-Salloum et al, 2011;Ilki et al,2011;Sezen, 2012].…”

Section: Different Techniques Have Been Used Fortherepairand Strengthmentioning

confidence: 99%

Full-Scale Shaking Table Tests on a Substandard RC Building Repaired and Strengthened with Post-Tensioned Metal Straps

Garcia

Hajirasouliha

Guadagnini

et al. 2013

Journal of Earthquake Engineering

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The effectiveness of anovel Post-Tensioned Metal Strapping(PTMS)techniqueat enhancingthe seismic behaviourof asubstandard RC buildingwas investigated through full-scale shake-tabletests duringthe EU-fundedproject BANDIT.The building had inadequate reinforcement detailing in columns and joints toreplicateold construction practices.After thebarebuildingwas initially damagedsignificantly,itwas repairedand strengthened with PTMS to perform additionalseismic tests.The PTMS technique improvedconsiderablythe seismic performance of the tested building.Whilst the bare building experienced critical damageatan earthquake of PGA=0.15g, thePTMSstrengthened building sustained a PGA=0.35gearthquake without compromising stability.

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“…Due to this huge application of FRP jackets in practice, over the last years several researchers investigated the structural behavior of RC reinforced elements and assemblies, see for example (Balsamo et al, 2005;Duong et al, 2007;Reyes et al, 2010;Le-Trung et al, 2010;Parvin et al, 2010;Zhu et al, 2011;Alaedini et al, 2015). Zou et al (2007;Choi et al, 2014), optimization procedures have been also proposed for the enhancement of the seismic performance of retrofitted RC frames.…”

Section: Introduction and Research Objectivesmentioning

confidence: 99%

Multi-Objective Optimization of FRP Jackets for Improving the Seismic Response of Reinforced Concrete Frames

Chisari¹,

Bedon²

2016

American Journal of Engineering and Applied Sciences

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Abstract:In this study, a multi-objective Genetic Algorithm (GA) optimization procedure is proposed for the seismic retrofitting of Reinforced Concrete (RC) building frames via Fiber-Reinforced Polymer (FRP) jackets. The optimization problem is solved via numerically efficient but accurate Finite-Element (FE) models able to take into account the strengthening and ductility increase contribution for a given FRP jacketing configuration. Based on a reference RC frame case study, an optimization approach aimed to maximize the frame ductility and minimize the FRP volume/cost is proposed, by taking into account different FRP jackets thicknesses for the internal and external columns and well as for each separate frame floor. In doing so, careful consideration is paid also to the expected collapse mechanism for the frame and the approach to embed a further objective able to control the collapse mechanism into the procedure is described. The results show the potential of the approach, which not only provides the entire Pareto Front of the multi-objective optimization problem, but also allows for general considerations about the influence of the design variables on the response of a given RC building.

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CFRP Rehabilitation of Concrete Frame Joints with Inadequate Shear and Anchorage Details

Cited by 55 publications

References 8 publications

Analytical model and design approach for FRP strengthening of non-conforming RC corner beam–column joints

Analytical model and design approach for FRP strengthening of non-conforming RC corner beam–column joints

Full-Scale Shaking Table Tests on a Substandard RC Building Repaired and Strengthened with Post-Tensioned Metal Straps

Multi-Objective Optimization of FRP Jackets for Improving the Seismic Response of Reinforced Concrete Frames

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