Evidence of beneficial role of inclined piles: Observations and summary of numerical analyses

Gerolymos, N; Giannakou, A; Anastasopoulos, I; Gazetas, G

dc.contributor.author	Gerolymos, N	en
dc.contributor.author	Giannakou, A	en
dc.contributor.author	Anastasopoulos, I	en
dc.contributor.author	Gazetas, G	en
dc.date.accessioned	2014-03-01T01:28:21Z
dc.date.available	2014-03-01T01:28:21Z
dc.date.issued	2008	en
dc.identifier.issn	1570-761X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18813
dc.subject	3D finite element model	en
dc.subject	Field observations	en
dc.subject	Group of piles	en
dc.subject	Inclined pile	en
dc.subject	Pile-to-cap connection	en
dc.subject	Seismic response	en
dc.subject	Soil-pile-bridge pier interaction	en
dc.subject.classification	Engineering, Geological	en
dc.subject.classification	Geosciences, Multidisciplinary	en
dc.subject.other	Finite element method	en
dc.subject.other	Geologic models	en
dc.subject.other	Seismology	en
dc.subject.other	Soils	en
dc.subject.other	Structural design	en
dc.subject.other	Three dimensional	en
dc.subject.other	3D finite element model	en
dc.subject.other	3D finite elements	en
dc.subject.other	Field observations	en
dc.subject.other	Group of piles	en
dc.subject.other	Inclined pile	en
dc.subject.other	Key parameters	en
dc.subject.other	Overturning moments	en
dc.subject.other	Pile groups	en
dc.subject.other	Raked piles	en
dc.subject.other	Seismic loadings	en
dc.subject.other	Shear forces	en
dc.subject.other	SHORT structures	en
dc.subject.other	Soil profiles	en
dc.subject.other	Structure responses	en
dc.subject.other	Vertical piles	en
dc.subject.other	Piles	en
dc.subject.other	finite element method	en
dc.subject.other	numerical model	en
dc.subject.other	pile	en
dc.subject.other	seismology	en
dc.subject.other	soil-structure interaction	en
dc.title	Evidence of beneficial role of inclined piles: Observations and summary of numerical analyses	en
heal.type	journalArticle	en
heal.identifier.primary	10.1007/s10518-008-9085-2	en
heal.identifier.secondary	http://dx.doi.org/10.1007/s10518-008-9085-2	en
heal.language	English	en
heal.publicationDate	2008	en
heal.abstract	The behaviour under seismic loading of inclined piles embedded in two idealized soil profiles, a homogeneous and a non-homogenous ""Gibson"" soil, is analysed with 3D finite elements. Two structures, modeled as single-degree-of-freedom oscillators, are studied: (1) a tall slender superstructure (H st = 12 m) whose crucial loading is the overturning moment, and (2) a short structure (H st = 1 m) whose crucial loading is the shear force. Three simple two-pile group are studied: (a) one comprising a vertical pile and a pile inclined at 25°, (b) one consisting of two piles symmetrically inclined at 25°, and (c) a group of two vertical piles. The influence of key parameters is analysed and non-dimensional diagrams are presented to illustrate the role of raked piles on pile and structure response. It is shown that this role can be beneficial or detrimental depending on a number of factors, including the slenderness of the superstructure and the type of pile-to-cap connection. © 2008 Springer Science+Business Media B.V.	en
heal.publisher	SPRINGER	en
heal.journalName	Bulletin of Earthquake Engineering	en
dc.identifier.doi	10.1007/s10518-008-9085-2	en
dc.identifier.isi	ISI:000260766100009	en
dc.identifier.volume	6	en
dc.identifier.issue	4	en
dc.identifier.spage	705	en
dc.identifier.epage	722	en