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Response of skirted foundations for buoyant facilities subjected to cyclic uplift loading

Response of skirted foundations for buoyant facilities subjected to cyclic uplift loading
Response of skirted foundations for buoyant facilities subjected to cyclic uplift loading

This paper presents results of beam centrifuge tests carried out with an instrumented shallow skirted foundation in lightly overconsolidated soft clay. The effect of one-way and two-way concentric cyclic loading on the load-displacement response during cyclic loading and on the subsequent transient and sustained uplift resistance of the foundationsoil system is considered. The results show that residual uplift displacements and a reduction in average stiffness occurred as the magnitude of the cyclic load and the number of cycles increased, but that undrained and sustained monotonic uplift capacity were enhanced by a preceding sequence of cyclic loading.

Centrifuge tests, Clay, Cyclic loading, Skirted foundation, Uplift
705-712
Acosta-Martinez, Hugo E.
13a0d798-b93d-445c-a1d9-6b3b4c9e6605
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8
Acosta-Martinez, Hugo E.
13a0d798-b93d-445c-a1d9-6b3b4c9e6605
Gourvenec, Susan M.
6ff91ad8-1a91-42fe-a3f4-1b5d6f5ce0b8

Acosta-Martinez, Hugo E. and Gourvenec, Susan M. (2008) Response of skirted foundations for buoyant facilities subjected to cyclic uplift loading. In Proceedings of the 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008. pp. 705-712 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents results of beam centrifuge tests carried out with an instrumented shallow skirted foundation in lightly overconsolidated soft clay. The effect of one-way and two-way concentric cyclic loading on the load-displacement response during cyclic loading and on the subsequent transient and sustained uplift resistance of the foundationsoil system is considered. The results show that residual uplift displacements and a reduction in average stiffness occurred as the magnitude of the cyclic load and the number of cycles increased, but that undrained and sustained monotonic uplift capacity were enhanced by a preceding sequence of cyclic loading.

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More information

Published date: 2008
Venue - Dates: 18th 2008 International Offshore and Polar Engineering Conference, ISOPE 2008, Vancouver, BC, Canada, 2008-07-06 - 2008-07-11
Keywords: Centrifuge tests, Clay, Cyclic loading, Skirted foundation, Uplift

Identifiers

Local EPrints ID: 414634
URI: https://eprints.soton.ac.uk/id/eprint/414634
PURE UUID: f9d7a048-4777-4094-b0e9-f51976ddc9c8
ORCID for Susan M. Gourvenec: ORCID iD orcid.org/0000-0002-2628-7914

Catalogue record

Date deposited: 05 Oct 2017 16:30
Last modified: 20 Jul 2019 00:25

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