Numerical analyses of fault-foundation interaction

Anastasopoulos, I; Callerio, A; Bransby, MF; Davies, MCR; El Nahas, A; Faccioli, E; Gazetas, G; Masella, A; Paolucci, R; Pecker, A; Rossignol, E

dc.contributor.author	Anastasopoulos, I	en
dc.contributor.author	Callerio, A	en
dc.contributor.author	Bransby, MF	en
dc.contributor.author	Davies, MCR	en
dc.contributor.author	El Nahas, A	en
dc.contributor.author	Faccioli, E	en
dc.contributor.author	Gazetas, G	en
dc.contributor.author	Masella, A	en
dc.contributor.author	Paolucci, R	en
dc.contributor.author	Pecker, A	en
dc.contributor.author	Rossignol, E	en
dc.date.accessioned	2014-03-01T01:28:52Z
dc.date.available	2014-03-01T01:28:52Z
dc.date.issued	2008	en
dc.identifier.issn	1570-761X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/19014
dc.subject	Centrifuge model tests	en
dc.subject	Fault rupture propagation	en
dc.subject	Soil-structure-interaction	en
dc.subject	Strip foundation	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Centrifugation	en
dc.subject.other	Centrifuges	en
dc.subject.other	Finite element method	en
dc.subject.other	Flow interactions	en
dc.subject.other	Foundations	en
dc.subject.other	Geologic models	en
dc.subject.other	Model structures	en
dc.subject.other	Soils	en
dc.subject.other	Analysis methods	en
dc.subject.other	Centrifuge model tests	en
dc.subject.other	Fault rupture propagation	en
dc.subject.other	Fault rupture propagations	en
dc.subject.other	Fault ruptures	en
dc.subject.other	Finite elements	en
dc.subject.other	Interface elements	en
dc.subject.other	Methods of analysis	en
dc.subject.other	Normal faults	en
dc.subject.other	Parametric studies	en
dc.subject.other	Pre-requisites	en
dc.subject.other	Residential structures	en
dc.subject.other	Scotland	en
dc.subject.other	Soil depths	en
dc.subject.other	Soil models	en
dc.subject.other	Soil softening	en
dc.subject.other	Strip foundation	en
dc.subject.other	Structure systems	en
dc.subject.other	Surcharge loads	en
dc.subject.other	Surface dislocations	en
dc.subject.other	Structural design	en
dc.subject.other	centrifuge	en
dc.subject.other	earthquake	en
dc.subject.other	fault	en
dc.subject.other	finite element method	en
dc.subject.other	foundation	en
dc.subject.other	model test	en
dc.subject.other	numerical model	en
dc.subject.other	rupture	en
dc.title	Numerical analyses of fault-foundation interaction	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10518-008-9078-1	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10518-008-9078-1	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	Field evidence from recent earthquakes has shown that structures can be designed to survive major surface dislocations. This paper: (i) Describes three different finite element (FE) methods of analysis, that were developed to simulate dip slip fault rupture propagation through soil and its interaction with foundation-structure systems; (ii) Validates the developed FE methodologies against centrifuge model tests that were conducted at the University of Dundee, Scotland; and (iii) Utilises one of these analysis methods to conduct a short parametric study on the interaction of idealised 2- and 5-story residential structures lying on slab foundations subjected to normal fault rupture. The comparison between numerical and centrifuge model test results shows that reliable predictions can be achieved with reasonably sophisticated constitutive soil models that take account of soil softening after failure. A prerequisite is an adequately refined FE mesh, combined with interface elements with tension cut-off between the soil and the structure. The results of the parametric study reveal that the increase of the surcharge load q of the structure leads to larger fault rupture diversion and ""smoothing"" of the settlement profile, allowing reduction of its stressing. Soil compliance is shown to be beneficial to the stressing of a structure. For a given soil depth H and imposed dislocation h, the rotation Δθ of the structure is shown to be a function of: (a) its location relative to the fault rupture; (b) the surcharge load q; and (c) soil compliance. © 2008 Springer Science+Business Media B.V.	en
heal.publisher	SPRINGER	en
heal.journalName	Bulletin of Earthquake Engineering	en
dc.identifier.doi	10.1007/s10518-008-9078-1	en
dc.identifier.isi	ISI:000260766100006	en
dc.identifier.volume	6	en
dc.identifier.issue	4	en
dc.identifier.spage	645	en
dc.identifier.epage	675	en