Three-dimensional behavior of a spherical self-centering precast prestressed pile isolator

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dc.contributor.authorJunemann, Rosita
dc.contributor.authorde la Llera, Juan C.
dc.contributor.authorBesa, Jaime
dc.contributor.authorAlmazan, Jose L.
dc.date.accessioned2024-01-10T12:10:07Z
dc.date.available2024-01-10T12:10:07Z
dc.date.issued2009
dc.description.abstractA 3D analytical formulation of a precast prestressed pile (PPP) seismic isolator with top and bottom spherical rolling kinematic constraints is proposed. The PPP isolator was initially conceived its a low-cost seismic isolation (and foundation) system for housing units of low-income people. Since these Structures are usually located at sites with poor soil conditions, the PPP isolator also works its a foundation pile by connecting the superstructure with more competent soil layers. The non-holonomic nature of the rolling constraint is dealt with by a structural formulation. The proposed 3D formulation is validated by numerical results obtained from a previously proposed formulation for the 2D problem, and a contact finite element model in ANSYS (www.ansys.com). Other issues associated with the dynamic response of isolated structures with the PPP are also examined. such as expected response reductions, variation in the axial force of the central prestressed cable, and torsional response amplifications. Finally, guidelines to estimate the actual 3D response using 2D analysis results are investigated. Copyright (C) 2009 John Wiley & Sons, Ltd.
dc.description.funderFONDECYT
dc.description.funderChilean National Fund for Science and Technology, FONDECYT
dc.fechaingreso.objetodigital04-04-2024
dc.format.extent24 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1002/eqe.901
dc.identifier.eissn1096-9845
dc.identifier.issn0098-8847
dc.identifier.urihttps://doi.org/10.1002/eqe.901
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76550
dc.identifier.wosidWOS:000265301300002
dc.information.autorucIngeniería;Almazán J;S/I;18831
dc.information.autorucIngeniería;De la Llera J;S/I;53086
dc.issue.numero5
dc.language.isoen
dc.nota.accesoContenido parcial
dc.pagina.final564
dc.pagina.inicio541
dc.publisherWILEY
dc.revistaEARTHQUAKE ENGINEERING & STRUCTURAL DYNAMICS
dc.rightsacceso restringido
dc.subjectkinematic isolators
dc.subjectprestressed rod
dc.subjectseismic isolation
dc.subjectstructural element
dc.subjectself-centering
dc.subjectrolling constraints
dc.subject.ods11 Sustainable Cities and Communities
dc.subject.odspa11 Ciudades y comunidades sostenibles
dc.titleThree-dimensional behavior of a spherical self-centering precast prestressed pile isolator
dc.typeartículo
dc.volumen38
sipa.codpersvinculados18831
sipa.codpersvinculados53086
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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