Simplified HYMOD non-linear simulations of a full-scale multistory retrofitted RC structure that undergoes multiple cyclic excitations – an infill RC wall retrofitting study

dc.contributor.authorMarkou, George
dc.contributor.authorMourlas, Christos
dc.contributor.authorBark, Hussein
dc.contributor.authorPapadrakakis, Manolis
dc.contributor.emailgeorge.markou@up.ac.zaen_ZA
dc.date.accessioned2018-10-17T09:00:46Z
dc.date.issued2018-12
dc.description.abstractHaving the ability to assess the earthquake resistance of retrofitted reinforced concrete (RC) structures through accurate and objective nonlinear cyclic analysis is of great importance for both scientists and professional Civil Engineers. Full-scale RC structure simulations under ultimate limit state cyclic loading conditions through the use of 3D detail modeling techniques, is currently one of the most challenging modeling tasks that any research or commercial software can undertake. The excessive computational demand and the numerical instabilities that occur when dealing with this type of cyclic nonlinear numerical analysis, make this modeling approach impractical. The simplified hybrid modeling (HYMOD) approach is adopted in this work, which overcomes the above numerical limitations and it is used herein to illustrate the capabilities of the method in capturing the experimental results of a full-scale 4-storey RC building that was retrofitted with RC infill walls and carbon fiber reinforced polymer jacketing. This work has the aim to investigate the importance of numerically accounting for the damage that has developed at the concrete and steel domains during the analysis of problems that foresee consecutive cyclic loading tests. Based on the numerical findings, it was concluded that the proposed modeling approach was able to accurately capture the experimental data and predict the capacity degradation of the building specimen. Furthermore, the proposed method was used to numerically investigate different retrofitting configurations that foresaw the use of infill RC walls. The numerical experiments performed in this work demonstrate that the proposed modeling approach provides with the ability to study the cyclic mechanical behavior of full-scale RC structures under ultimate limit state conditions, thus paves the way in performing additional parametric investigations in determining the optimum retrofitting design of RC structures by using different types of interventions.en_ZA
dc.description.departmentCivil Engineeringen_ZA
dc.description.embargo2019-12-01
dc.description.librarianhj2018en_ZA
dc.description.sponsorshipThe European Research Council Advanced Grant “MASTER-Mastering the computational challenges in numerical modeling and optimum design of CNT reinforced composites” (ERC-2011-ADG 20110209).en_ZA
dc.description.urihttp://www.elsevier.com/locate/engstructen_ZA
dc.identifier.citationMarkou, G., Mourlas, C., Bark, H. et al. 2018, 'Simplified HYMOD non-linear simulations of a full-scale multistory retrofitted RC structure that undergoes multiple cyclic excitations – An infill RC wall retrofitting study', Engineering Structures, vol. 176, pp. 892-916.en_ZA
dc.identifier.issn0141-0296 (print)
dc.identifier.issn1873-7323 (online)
dc.identifier.other10.1016/j.engstruct.2018.08.002
dc.identifier.urihttp://hdl.handle.net/2263/66922
dc.language.isoenen_ZA
dc.publisherElsevieren_ZA
dc.rights© 2018 Published by Elsevier Ltd. Notice : this is the author’s version of a work that was accepted for publication in Engineering structures. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. A definitive version was subsequently published in Engineering structures, vol. 176, pp. 892-916, 2018. doi : 10.1016/j.engstruct.2018.08.002.en_ZA
dc.subjectReinforced concrete (RC)en_ZA
dc.subjectHybrid modeling (HYMOD)en_ZA
dc.subjectLarge-scale modelingen_ZA
dc.subjectHybrid finite elementsen_ZA
dc.subjectCyclic loadingen_ZA
dc.subjectRetrofitting infill wallsen_ZA
dc.subjectCFRP jacketingen_ZA
dc.subjectCarbon fiber reinforced polymer (CFRP)en_ZA
dc.subjectEarthquake engineeringen_ZA
dc.subjectFiber reinforced plasticsen_ZA
dc.subjectNumerical modelsen_ZA
dc.subjectParametric investigationsen_ZA
dc.subjectNonlinear numerical analysisen_ZA
dc.subjectInfill wallsen_ZA
dc.subjectComputational demandsen_ZA
dc.subjectWalls (structural partitions)en_ZA
dc.subjectInfill drillingen_ZA
dc.titleSimplified HYMOD non-linear simulations of a full-scale multistory retrofitted RC structure that undergoes multiple cyclic excitations – an infill RC wall retrofitting studyen_ZA
dc.typePostprint Articleen_ZA

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