Equivalence between 2D and 3D numerical simulations of the seismic response of improved sites

Papadimitriou, AG; Vytiniotis, AC; Bouckovalas, GD

dc.contributor.author	Papadimitriou, AG	en
dc.contributor.author	Vytiniotis, AC	en
dc.contributor.author	Bouckovalas, GD	en
dc.date.accessioned	2014-03-01T02:50:21Z
dc.date.available	2014-03-01T02:50:21Z
dc.date.issued	2006	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/35086
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-84865835763&partnerID=40&md5=85f2f5d6d2d2ec0af5b46bb8818ddfb8	en
dc.subject.other	2D analysis	en
dc.subject.other	3-D numerical simulation	en
dc.subject.other	3-D problems	en
dc.subject.other	3D analysis	en
dc.subject.other	3D geometry	en
dc.subject.other	Natural soils	en
dc.subject.other	Seismic ground	en
dc.subject.other	Soldier piles	en
dc.subject.other	Square cell	en
dc.subject.other	Transverse section	en
dc.subject.other	Civil engineering	en
dc.subject.other	Engineering geology	en
dc.subject.other	Geometry	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Seismic response	en
dc.subject.other	Three dimensional	en
dc.title	Equivalence between 2D and 3D numerical simulations of the seismic response of improved sites	en
heal.type	conferenceItem	en
heal.publicationDate	2006	en
heal.abstract	This paper studies how 2D numerical analyses may be accurately used for simulating the truly 3D problem of the seismic response of improved sites. Specifically, parametric results are compared from pertinent 3D and 2D seismic ground response analyses and a methodology is proposed for replacing the timeconsuming 3D analyses with ""equivalent"" 2D analyses that closely simulate the results of the 3D analyses. Emphasis is put on replacement and solidification methods of soft (cohesive) soils and on three (3) improvement geometries: a) an embedded soldier pile wall, b) a grid of columns/piles and c) a grid of closed square cells. For the first two geometries, the 2D analysis is performed on the basis of an ""equivalent"" improvement geometry that has the same section modulus as that of the actual 3D geometry. For the grid of closed square cells, the 2D analysis is performed by replacing the natural soil and the transverse sections of the cells with a geo-material with ""equivalent"" stiffness.	en
heal.journalName	8th US National Conference on Earthquake Engineering 2006	en
dc.identifier.volume	16	en
dc.identifier.spage	10029	en
dc.identifier.epage	100038	en