Undrained limit states of shallow foundations acting in consort
Undrained limit states of shallow foundations acting in consort
There is no established procedure for the calculation of bearing capacity of a shallow foundation system comprising cojoined footings. Ad hoc approaches are relied on and may simply involve summing the ultimate limit states of the individual footings as if they acted independently; neglecting additional capacity of the system available from the kinematic constraint provided by the structural connection between the footings. In this study, the undrained capacity under general loading of rigidly connected two-footing systems at various separations has been investigated with finite-element analyses. Results are presented in terms of ultimate limit states under pure vertical (V), horizontal (H), and moment (M) loading, and failure envelopes defining limiting load states under combined VH, VM, HM, and VHM loads. Kinematic failure mechanisms observed in the finite-element analyses are presented and in cases used to provide the basis for upper bound solutions.
Analytical techniques, Being capacity, Limit states, Numerical analysis, Shallow foundation
194-205
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Steinepreis, Mark
565df5bd-907f-4235-a45a-43d2e0786d98
May 2007
Gourvenec, Susan
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Steinepreis, Mark
565df5bd-907f-4235-a45a-43d2e0786d98
Gourvenec, Susan and Steinepreis, Mark
(2007)
Undrained limit states of shallow foundations acting in consort.
International Journal of Geomechanics, ASCE, 7 (3), .
(doi:10.1061/(ASCE)1532-3641(2007)7:3(194)).
Abstract
There is no established procedure for the calculation of bearing capacity of a shallow foundation system comprising cojoined footings. Ad hoc approaches are relied on and may simply involve summing the ultimate limit states of the individual footings as if they acted independently; neglecting additional capacity of the system available from the kinematic constraint provided by the structural connection between the footings. In this study, the undrained capacity under general loading of rigidly connected two-footing systems at various separations has been investigated with finite-element analyses. Results are presented in terms of ultimate limit states under pure vertical (V), horizontal (H), and moment (M) loading, and failure envelopes defining limiting load states under combined VH, VM, HM, and VHM loads. Kinematic failure mechanisms observed in the finite-element analyses are presented and in cases used to provide the basis for upper bound solutions.
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Published date: May 2007
Keywords:
Analytical techniques, Being capacity, Limit states, Numerical analysis, Shallow foundation
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Local EPrints ID: 414639
URI: http://eprints.soton.ac.uk/id/eprint/414639
ISSN: 1532-3641
PURE UUID: 365f483e-1c9d-42ab-8171-4b118c8f071d
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Date deposited: 05 Oct 2017 16:30
Last modified: 16 Mar 2024 04:31
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Author:
Mark Steinepreis
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