Seismic Response of Embedded Foundations in Inhomogeneous Soil

Ντούσκας, Γεώργιος; Ntouskas, Georgios

dc.contributor.author	Ντούσκας, Γεώργιος	el
dc.contributor.author	Ntouskas, Georgios	en
dc.date.accessioned	2018-03-15T11:14:24Z
dc.date.available	2018-03-15T11:14:24Z
dc.date.issued	2018-03-15
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/46708
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.7966
dc.description	Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Δομοστατικός Σχεδιασμός και Ανάλυση των Κατασκευών”	el
dc.rights	Default License
dc.subject	Αλληλεπίδραση εδάφους – κατασκευής	el
dc.subject	Ανομοιογενές έδαφος	el
dc.subject	Αστοχία	el
dc.subject	Θεμελιώσεις	el
dc.subject	Σεισμική απόκριση	el
dc.subject	Failure	en
dc.subject	Foundations	en
dc.subject	Inhomogeneous soil	en
dc.subject	Soil - structure interaction	en
dc.subject	Seismic response	en
dc.title	Seismic Response of Embedded Foundations in Inhomogeneous Soil	en
dc.title	Σεισμική Απόκριση Εγκιβωτισμένων Θεμελιώσεων σε Ανομοιογενές Έδαφος	el
heal.type	masterThesis
heal.classification	ΓΕΩΤΕΧΝΙΚΗ ΜΗΧΑΝΙΚΗ	el
heal.classification	GEOTECHNICAL ENGINEERING	en
heal.classification	EARTHQUAKE ENGINEERING	en
heal.classificationURI	http://data.seab.gr/concepts/cb16f7de16f322f2114874eda44f02fe72165c84
heal.classificationURI	http://data.seab.gr/concepts/cb16f7de16f322f2114874eda44f02fe72165c84
heal.classificationURI	http://data.seab.gr/concepts/b2281050858c70f51767d4b4f6e69f4ecae86ebe
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2018-02-21
heal.abstract	In the present MSc thesis results of a three-dimensional finite-element study for the effect of embedment on the undrained bearing capacity, the elastic stiffness, and the seismic behaviour of square-in-plan foundations are presented for two linearly inhomogeneous soil profiles. For static analysis, equations for uniaxial horizontal (Q) and pure-moment (M) limit loads with the relative elastic stiffnesses (KHH and KMM) as functions of soil heterogeneity and embedment ratio are exported. Additionally, capacity envelopes for (QM), (NQ) and (NM) loading combinations are presented; special references for the significance of the vertical load (N) and the position of the reference point are noted. The response is affected by the type of contact between the foundation interfaces (vertical and horizontal) with the surrounding and underlying soil. For this reason, a comparison for two different soil-foundation interaction types is made; the ideal case of fully bonded contact [FBC] in contrast to tensionless and of limited shear (sliding) resistance interfaces [TSI]. Extensive comparisons are made with the results for homogeneous soil. One-dimensional seismic response of embedded foundations with a simple slender structure is investigated parametrically, as function of the foundation embedment ratio, the soil heterogeneity, the vertical safety factor and the superstructure slenderness. Diagrams of acceleration in various model positions, foundation settlement via rotation angle, loops M–θ for two seismic records are presented. Only [TSI] type of soil–foundation interaction interface is investigated. For credible results and conclusions, the system is subjected to two different seismic stimulations with various characteristics.	en
heal.advisorName	Γκαζέτας, Γεώργιος	el
heal.committeeMemberName	Γκαζέτας, Γεώργιος	el
heal.committeeMemberName	Γερόλυμος, Νικόλαος	el
heal.committeeMemberName	Γεωργιάννου, Βασιλική	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Πολιτικών Μηχανικών. Τομέας Γεωτεχνικής. Εργαστήριο Εδαφομηχανικής	el
heal.academicPublisherID	ntua
heal.numberOfPages	72 σ.	el
heal.fullTextAvailability	true