An experimental study of nominally symmetric and asymmetric structures isolated with the FPS

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dc.catalogadorpau
dc.contributor.authorLlera Martin, Juan Carlos de la
dc.contributor.authorAlmazán Campillay, José Luis
dc.date.accessioned2023-03-28T14:15:13Z
dc.date.available2023-03-28T14:15:13Z
dc.date.issued2003
dc.description.abstractThis experimental investigation deals with the earthquake behaviour of a nominally symmetric and a mass-asymmetric three-storey structural model isolated with the frictional pendulum system (FPS). Both accidental and natural torsion are evaluated in the structure by using recorded accelerations in all building floors and measured deformations at the isolation level. A 3D-shaking table was used to subject the model to five different ground motions, including impulsive as well as far-field subduction-zone type earthquakes. Results show that the analytical predictions of the earthquake behaviour of the isolated structure, as obtained from a physical model of the FPS, are in close agreement with the true complex inelastic measured behaviour of the FPS. Besides, experimental results also validate previous observations about the importance of accounting for the variability of the normal loads in modelling the earthquake behaviour of FPS isolators. Measured torsional deformation amplifications at the base of the building vary, in the mean, from 2.5% to 6% for the symmetric and asymmetric structural configurations, respectively. In relation to the fixed base structure, the reduction factors for the base shear of the isolated structure are, in the mean, about 3.9 for both configurations. Finally, it is concluded that the FPS is capable of controlling the lateral-torsional motions of mass-asymmetric structures quite effectively by aligning the centre of mass of the superstructure with the centre of pendular and frictional resistance of the isolation system. Copyright (C) 2003 John Wiley Sons, Ltd.
dc.fechaingreso.objetodigital2023-03-28
dc.format.extent28 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/eqe.254
dc.identifier.eissn1096-9845
dc.identifier.issn0098-8847
dc.identifier.urihttps://doi.org/10.1002/eqe.254
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/66671
dc.identifier.wosidWOS:000182570300004
dc.information.autorucEscuela de Ingeniería; Llera Martin, Juan Carlos de la; 0000-0002-9064-0938; 53086
dc.issue.numero6
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final918
dc.pagina.inicio891
dc.publisherWILEY
dc.revistaEARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
dc.rightsacceso restringido
dc.subjectMODEL
dc.subject.ddc620
dc.subject.deweyIngenieríaes_ES
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleAn experimental study of nominally symmetric and asymmetric structures isolated with the FPSes_ES
dc.typeartículo
dc.volumen32
sipa.codpersvinculados53086
sipa.indexISI-1991-1995-1998-1999-2000-2001-2002-2003-2004-2005-2006-2007-2008-2009-2010-2011-2013-2015-2016-2017
sipa.indexScopus-2010-2011-2013-2016-2017
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