Torsional balance as new design criterion for asymmetric structures with energy dissipation devices

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dc.contributor.authorAlmazan, Jose L.
dc.contributor.authorde la Llera, Juan C.
dc.date.accessioned2024-01-10T12:44:26Z
dc.date.available2024-01-10T12:44:26Z
dc.date.issued2009
dc.description.abstractLateral-torsional coupling in asymmetric-plan buildings leads to correlated translations and rotations of the building plan, which generate uneven distributions of deformation demand among resisting planes. The deformation demand of a resisting plane depends on the relative magnitude of the plan translation and rotation and on the correlation between the two signals. Thus, small rotations highly correlated with building translation may lead to significantly different deformations of the resisting planes at the building edges. Consequently, the use of supplemental dampers is intended not only to reduce the magnitude of the plan translation and rotation, but also the correlation between these motions. For the sake of simplicity, linear viscous dampers are used in this investigation, which properly located in plan lead to a minimum response of the geometric center, thus achieving the same mean-square value of the displacements at the building edges. Mathematically, this condition may be understood as creating zero correlation between the translations and rotation at the geometric center of the plan, which represents an uncoupling in the mean-square sense. Results show that the optimal damper location depends on the static eccentricity and frequency ratio of the bare structure, the total amount of supplemental damping considered, and the frequency content of the excitation. Through a final 6-story model example, the torsional balance concept is demonstrated to work on multistory buildings subjected to bidirectional ground motions. Copyright (C) 2009 John Wiley & Sons, Ltd.
dc.description.funderChilean Fondo Nacional de Ciencia y Tecnologia
dc.fechaingreso.objetodigital04-04-2024
dc.format.extent20 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/eqe.909
dc.identifier.eissn1096-9845
dc.identifier.issn0098-8847
dc.identifier.urihttps://doi.org/10.1002/eqe.909
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/77673
dc.identifier.wosidWOS:000270850100004
dc.information.autorucIngeniería;Almazán JL;S/I;18831
dc.information.autorucIngeniería;De la Llera JC;S/I;53086
dc.issue.numero12
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final1440
dc.pagina.inicio1421
dc.publisherWILEY
dc.revistaEARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
dc.rightsacceso restringido
dc.subjecttorsional balance
dc.subjectplan asymmetry
dc.subjectlateral-torsional correlation
dc.subjectearthquake response
dc.subjectSEISMIC RESPONSE
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleTorsional balance as new design criterion for asymmetric structures with energy dissipation devices
dc.typeartículo
dc.volumen38
sipa.codpersvinculados18831
sipa.codpersvinculados53086
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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