Seismic response of slender rigid structures with foundation uplifting

Apostolou, M; Gazetas, G; Garini, E

dc.contributor.author	Apostolou, M	en
dc.contributor.author	Gazetas, G	en
dc.contributor.author	Garini, E	en
dc.date.accessioned	2014-03-01T01:27:14Z
dc.date.available	2014-03-01T01:27:14Z
dc.date.issued	2007	en
dc.identifier.issn	0267-7261	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18351
dc.subject	Foundation uplift	en
dc.subject	Near-fault motions	en
dc.subject	Nonlinear dynamics	en
dc.subject	Overturning	en
dc.subject	Rocking	en
dc.subject	Soil-structure interaction	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Acceleration	en
dc.subject.other	Dynamics	en
dc.subject.other	Foundations	en
dc.subject.other	Seismic response	en
dc.subject.other	Seismic waves	en
dc.subject.other	Foundation uplift	en
dc.subject.other	Near-fault motions	en
dc.subject.other	Overturning response	en
dc.subject.other	Slender rigid structures	en
dc.subject.other	Soil structure interactions	en
dc.subject.other	acceleration	en
dc.subject.other	elastic wave	en
dc.subject.other	foundation	en
dc.subject.other	ground motion	en
dc.subject.other	overturn	en
dc.subject.other	rigidity	en
dc.subject.other	seismic response	en
dc.subject.other	soil-structure interaction	en
dc.subject.other	strong motion	en
dc.subject.other	uplift	en
dc.title	Seismic response of slender rigid structures with foundation uplifting	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.soildyn.2006.12.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.soildyn.2006.12.002	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The rocking of rigid structures uplifting from their support under strong earthquake shaking is investigated. The structure is resting on the surface of either a rigid base or a linearly elastic continuum. A large-displacement approach is adopted to extract the governing equations of motion allowing for a rigorous calculation of the nonlinear response even under near-overturning conditions. Directivity-affected near-fault ground motions, idealized as Ricker wavelets or trigonometric pulses, are used as excitation. The conditions under which uplifting leads to large angles of rotation and eventually to overturning are investigated. A profoundly nonlinear rocking behavior is revealed for both rigid and elastic soil conditions. This geometrically nonlinear response is further amplified by unfavorable sequences of long-duration pulses in the excitation. Moreover, through the overturning response of a toppled tombstone, it is concluded that the practice of estimating ground accelerations from overturning observations is rather misleading and meaningless. (c) 2007 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Soil Dynamics and Earthquake Engineering	en
dc.identifier.doi	10.1016/j.soildyn.2006.12.002	en
dc.identifier.isi	ISI:000246086900004	en
dc.identifier.volume	27	en
dc.identifier.issue	7	en
dc.identifier.spage	642	en
dc.identifier.epage	654	en