dc.contributor.author | Naghibi, Mehrangiz | |
dc.date.accessioned | 2010-04-20T13:35:16Z | |
dc.date.available | 2010-04-20T13:35:16Z | |
dc.date.issued | 2010-04-20T13:35:16Z | |
dc.identifier.uri | http://hdl.handle.net/10222/12776 | |
dc.description.abstract | For many years, engineers have designed foundations, walls and culverts for highway and
other geotechnical applications using allowable stress design (ASD) methods. In ASD, all
uncertainties in the load and resistance are combined into a global factor of safety which,
unfortunately, leads to uncertain safety margins in the design. The determination of system
failure probability requires a coherent method of design for the geotechnical system. The
Load and Resistance Factor Design (LRFD) approach allows designs to be targeted to
acceptable failure probability levels, which depend on the limit state being avoided.
This research proposes Load and Resistance Factor Design provisions for the ultimate limit
state punching shear failure of deep foundations. The load factors currently used are as
specified by the National Building Code of Canada. The geotechnical resistance factors
required to achieve a certain acceptable failure probability are estimated as a function of the
spatial variability of the soil and of the degree of site understanding. A mathematical theory
is developed to analytically estimate the failure probability of deep foundations in which
the spatially random soil field is modeled using random field theory. The analytical results
are validated by simulation and then used to estimate failure probabilities and geotechnical
resistance factors required for design. | en_US |
dc.language.iso | en | en_US |
dc.title | Geotechnical Resistance Factors for Ultimate Limit State Design of Deep Foundations Under Axial Compression Loading | en_US |
dc.date.defence | 2010-03-26 | |
dc.contributor.department | Department of Engineering Mathematics | en_US |
dc.contributor.degree | Doctor of Philosophy | en_US |
dc.contributor.external-examiner | Dr. Dennis E. Becker | en_US |
dc.contributor.graduate-coordinator | Dr. Guy Kember | en_US |
dc.contributor.thesis-reader | Dr. Craig B. Lake | en_US |
dc.contributor.thesis-reader | Dr. Serguei Iakovlev | en_US |
dc.contributor.thesis-supervisor | Dr. Gordon A. Fenton | en_US |
dc.contributor.ethics-approval | Not Applicable | en_US |