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Dynamic soil-structure interaction analysis of a telescope at the Javalambre Astrophysical Observatory

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Dynamic soil-structure interaction analysis of a telescope at the Javalambre Astrophysical Observatory

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dc.contributor.author Francois, Stijn es_ES
dc.contributor.author Galvin, Pedro es_ES
dc.contributor.author Museros Romero, Pedro es_ES
dc.contributor.author Lombaert, Geert es_ES
dc.contributor.author Degrande, Geert es_ES
dc.date.accessioned 2015-11-25T09:43:38Z
dc.date.available 2015-11-25T09:43:38Z
dc.date.issued 2014-10
dc.identifier.issn 0267-7261
dc.identifier.uri http://hdl.handle.net/10251/58062
dc.description.abstract This paper presents the dynamic soil-structure analysis of the main telescope 1250 of the Observatorio Astroffsico de Javalambre (OAJ, Javalambre Astrophysical Observatory) on the Pico del Buitre. Vibration control has been of prime concern in the design, since astrophysical observations may be hindered by mechanical vibration of optical equipment due to wind loading. The telescope manufacturer therefore has imposed a minimal natural frequency of 10 Hz for the supporting telescope pier. Dynamic soilstructure interaction may significantly influence the lowest natural frequency of a massive construction as a telescope pier. The structure clamped at its base has a resonance frequency of 14.3 Hz. A coupled finite element-boundary element (FE-BE) model of the telescope pier that accounts for the dynamic interaction of the piled foundation and the soil predicts a resonance frequency of 11.2 Hz, demonstrating the significant effect of dynamic soil-structure interaction. It is further investigated to what extent the coupled FE-BE model can be simplified in order to reduce computation time. The assumption of a rigid pile cap allows us to account for dynamic soil-structure interaction in a simplified way. A coupled FE-BE analysis with a rigid pile cap predicts a resonance frequency of 11.7 Hz, demonstrating a minor effect of the pile cap flexibility on the resonance frequency of the telescope pier. The use of an analytical model for the pile group results in an overestimation of the dynamic soil stiffness. This error is due to the large difference between the actual geometry and the square pile cap model for which the parameters have been tuned. (C) 2014 Elsevier Ltd. All rights reserved. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Soil Dynamics and Earthquake Engineering es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject Vibration of sensitive equipment es_ES
dc.subject FE-BE modelling es_ES
dc.subject Dynamic soil-structure interaction es_ES
dc.subject.classification MECANICA DE LOS MEDIOS CONTINUOS Y TEORIA DE ESTRUCTURAS es_ES
dc.title Dynamic soil-structure interaction analysis of a telescope at the Javalambre Astrophysical Observatory es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.soildyn.2014.06.014
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Mecánica de los Medios Continuos y Teoría de Estructuras - Departament de Mecànica dels Medis Continus i Teoria d'Estructures es_ES
dc.description.bibliographicCitation Francois, S.; Galvin, P.; Museros Romero, P.; Lombaert, G.; Degrande, G. (2014). Dynamic soil-structure interaction analysis of a telescope at the Javalambre Astrophysical Observatory. Soil Dynamics and Earthquake Engineering. 65:165-180. doi:10.1016/j.soildyn.2014.06.014 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.soildyn.2014.06.014 es_ES
dc.description.upvformatpinicio 165 es_ES
dc.description.upvformatpfin 180 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 65 es_ES
dc.relation.senia 294229 es_ES


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