Masonry infill walls in reinforced concrete frames as a source of structural damping

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dc.contributor.authorOzkaynak, H.
dc.contributor.authorYuksel, E.
dc.contributor.authorYalcin, C.
dc.contributor.authorDindar, A. A.
dc.contributor.authorBuyukozturk, O.
dc.date.accessioned2024-03-13T10:30:38Z
dc.date.available2024-03-13T10:30:38Z
dc.date.issued2014
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractThis paper presents the results of an experimental study on the determination of damping characteristics of bare, masonry infilled, and carbon fiber reinforced polymer retrofitted infilled reinforced concrete (RC) frames. It is well known that the masonry infills are used as partitioning walls having significant effect on the damping characteristics of structures as well as contribution to the lateral stiffness and strength. The main portion of the input energy imparted to the structure during earthquakes is dissipated through hysteretic and damping energies. The equivalent damping definition is used to reflect various damping mechanisms globally. In this study, the equivalent damping ratio of carbon fiber reinforced polymer retrofitted infilled RC systems is quantified through a series of 1/3-scaled, one-bay, one-story frames. Quasi-static tests are carried out on eight specimens with two different loading patterns: one-cycled and three-cycled displacement histories and the pseudo-dynamic tests performed on eight specimens for selected acceleration record scaled at three different PGA levels with two inertia mass conditions. The results of the experimental studies are evaluated in two phases: (i) equivalent damping is determined for experimentally obtained cycles from quasi-static and pseudo-dynamic tests; and (ii) an iterative procedure is developed on the basis of the energy balance formulation to determine the equivalent damping ratio. On the basis of the results of these evaluations, equivalent damping of levels of 5%, 12%, and 14% can be used for bare, infilled, and retrofitted infilled RC frames, respectively. Copyright (c) 2013 John Wiley & Sons, Ltd.en_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [106M050]; Istanbul Technical University (ITU) Research Funds [31966]en_US
dc.description.sponsorshipThis study was conducted at Structural and Earthquake Engineering Laboratory of Istanbul Technical University. It was sponsored by research projects 106M050 of Scientific and Technological Research Council of Turkey (TUBITAK) and 31966 of Istanbul Technical University (ITU) Research Funds. The contributions of MSc H. Saruhan, E. S. Tako, and I. Bastemir to the experimental works are gratefully acknowledged.en_US
dc.identifier.doi10.1002/eqe.2380
dc.identifier.endpage968en_US
dc.identifier.issn0098-8847
dc.identifier.issn1096-9845
dc.identifier.issue7en_US
dc.identifier.scopus2-s2.0-84898818218en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage949en_US
dc.identifier.urihttps://doi.org/10.1002/eqe.2380
dc.identifier.urihttps://hdl.handle.net/20.500.12662/3445
dc.identifier.volume43en_US
dc.identifier.wosWOS:000334282100001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofEarthquake Engineering & Structural Dynamicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectenergy methodsen_US
dc.subjectmasonry infilled framesen_US
dc.subjectequivalent dampingen_US
dc.subjectdampingen_US
dc.subjectCFRP retrofittingen_US
dc.titleMasonry infill walls in reinforced concrete frames as a source of structural dampingen_US
dc.typeArticleen_US

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