Journal Published Online: 30 March 2005
Volume 28, Issue 3

Determination of Multidirectional p-y Curves for Soft Clays

CODEN: GTJODJ

Abstract

The evaluation of performance of soil-pile-structure systems under seismic loading is one of the most complex problems in earthquake engineering. In the most common methodology, force-displacement curves are used to describe the nonlinear response of discrete soil springs connecting the piles to the “free-field” soil column using the concept of beam on nonlinear Winkler foundation. Although there is a great interest and on-going research to characterize the multi-directional “free-field” soil response, there is a lack of information and experimental data to formulate p-y curves in multi-directional loading conditions. A new testing device was designed and constructed to obtain high quality data to calibrate numerical tools used to evaluate the seismic performance of structures supported on deep foundations in soft clay. A suite of different ground displacement path scenarios observed during recent earthquakes was simulated to assess the effect of displacement history on measured p-y response.

Author Information

Mayoral, JM
URS Corporation, Oakland, CA
Pestana, JM
University of California, Berkeley, CA
Seed, RB
University of California, Berkeley, CA
Pages: 11
Price: $25.00
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Stock #: GTJ11697
ISSN: 0149-6115
DOI: 10.1520/GTJ11697