Torsional balance of plan asymmetric structures with viscoelastic dampers

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dc.contributor.authorGarcia, Marcos
dc.contributor.authorde la Llera, Juan C.
dc.contributor.authorAlmazan, Jose L.
dc.date.accessioned2024-01-10T13:43:59Z
dc.date.available2024-01-10T13:43:59Z
dc.date.issued2007
dc.description.abstractThis investigation deals with the torsional balance of elastic asymmetric structures with viscoelastic dampers. Plan asymmetry leads to an uneven lateral deformation demand among structural members and to unbalanced designs with larger capacities in some resisting planes. The analytical and experimental response of stiffness and mass-eccentric structures subjected to different ground motions is investigated herein. Viscoelastic dampers are capable of controlling the lateral-torsional coupling of a structure by placing the so-called Empirical Center of Balance (ECB) of the plan equidistant from all building edges. To improve the damper efficiency, a mechanical deformation amplifier was included in the one-story experimental building model. Results show that the displacement demand at the building edges and that of resisting planes at equal distance from the ECB may be similar if the damper is optimally placed. It was observed that optimal damper eccentricity values tend to increase linearly as the stiffness or mass eccentricities increase, and that response reduction factors ranging from 1.5 to 3 are possible with a small capacity damper. Moreover, viscoelastic dampers are equally effective in controlling lateral-torsional coupling of torsionally flexible as well as stiff structures. (C) 2006 Elsevier Ltd. All rights reserved.
dc.fechaingreso.objetodigital21-03-2024
dc.format.extent19 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.engstruct.2006.06.022
dc.identifier.eissn1873-7323
dc.identifier.issn0141-0296
dc.identifier.urihttps://doi.org/10.1016/j.engstruct.2006.06.022
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/78810
dc.identifier.wosidWOS:000246837300007
dc.information.autorucIngeniería;Almazan J;S/I;18831
dc.information.autorucIngeniería;De la Llera J;S/I;53086
dc.issue.numero6
dc.language.isoen
dc.nota.accesocontenido parcial
dc.pagina.final932
dc.pagina.inicio914
dc.publisherELSEVIER SCI LTD
dc.revistaENGINEERING STRUCTURES
dc.rightsacceso restringido
dc.subjecttorsional balance
dc.subjectplan asymmetry
dc.subjectviscoelastic dampers
dc.subjectempirical center of balance
dc.subjectresponse reduction factors
dc.subjectSTORY ELASTIC-SYSTEMS
dc.subjectSEISMIC RESPONSE
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleTorsional balance of plan asymmetric structures with viscoelastic dampers
dc.typeartículo
dc.volumen29
sipa.codpersvinculados18831
sipa.codpersvinculados53086
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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