Slab foundation subjected to thrust faulting in dry sand: Parametric analysis and simplified design method

Anastasopoulos, I; Antonakos, G; Gazetas, G

dc.contributor.author	Anastasopoulos, I	en
dc.contributor.author	Antonakos, G	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T01:34:36Z
dc.date.available	2014-03-01T01:34:36Z
dc.date.issued	2010	en
dc.identifier.issn	0267-7261	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/20770
dc.subject	Case History	en
dc.subject	Design Method	en
dc.subject	Design Tool	en
dc.subject	Finite Element Analysis	en
dc.subject	Parametric Analysis	en
dc.subject	Parametric Study	en
dc.subject	Static Analysis	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Case history	en
dc.subject.other	Design charts	en
dc.subject.other	Design tool	en
dc.subject.other	Dry sand	en
dc.subject.other	Fault ruptures	en
dc.subject.other	Finite element analysis	en
dc.subject.other	Induced damage	en
dc.subject.other	Parametric analysis	en
dc.subject.other	Parametric study	en
dc.subject.other	Practical solutions	en
dc.subject.other	Response parameters	en
dc.subject.other	Simplified design method	en
dc.subject.other	Simplified method	en
dc.subject.other	Soil stiffness	en
dc.subject.other	Thrust faulting	en
dc.subject.other	Winkler	en
dc.subject.other	Design	en
dc.subject.other	Foundations	en
dc.subject.other	Finite element method	en
dc.subject.other	Chi-Chi earthquake 1999	en
dc.subject.other	deformation	en
dc.subject.other	earthquake rupture	en
dc.subject.other	faulting	en
dc.subject.other	finite element method	en
dc.subject.other	foundation	en
dc.subject.other	sand	en
dc.subject.other	seismic design	en
dc.subject.other	slab	en
dc.subject.other	soil mechanics	en
dc.subject.other	soil-structure interaction	en
dc.subject.other	stiffness	en
dc.subject.other	thrust fault	en
dc.title	Slab foundation subjected to thrust faulting in dry sand: Parametric analysis and simplified design method	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.soildyn.2010.04.002	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.soildyn.2010.04.002	en
heal.language	English	en
heal.publicationDate	2010	en
heal.abstract	Motivated by recent case histories of faulting-induced damage to structures (Chi-Chi, 1999; Wenchuan 2008), this paper applies a thoroughly validated finite element analysis methodology to study the response of slab foundations subjected to thrust faulting. A parametric study is conducted, investigating the effect of key response parameters. It is shown that the stressing of the foundation, and consequently of the superstructure, stems mainly from loss of support. Depending on the geometry, loss of support takes place either under the edges or under the middle of the foundation, generating hogging or sagging deformation, respectively. Increasing the weight of the structure and/or decreasing soil stiffness leads to less stressing of the foundation. Surprisingly, even when the fault rupture emerges beyond the structure, completely avoiding the foundation, substantial foundation distress may still be generated. Exploiting the results of the parametric study, a simplified design method is developed, calling for conventional static analysis of a slab on Winkler supports, "simulating" the fault rupture by removing Winkler springs from equivalent area(s) of loss of support. The latter can be estimated with the help of design charts, further facilitating its use in practice. The proposed simplified method should not be viewed as a general design tool, but as a first idea of a practical solution to the investigated problem. (C) 2010 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.2010.04.002	en
dc.identifier.isi	ISI:000280986400004	en
dc.identifier.volume	30	en
dc.identifier.issue	10	en
dc.identifier.spage	912	en
dc.identifier.epage	924	en