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Geomechanics and Engineering Volume 5, Number 5, October 2013 , pages 379-399 DOI: https://doi.org/10.12989/gae.2013.5.5.379 |
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Winkler Springs (p-y curves) for pile design from stress-strain of soils: FE assessment of scaling coefficients using the Mobilized Strength Design concept |
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Dj. Amar Bouzid, S. Bhattacharya and S.R. Dash
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| Abstract | ||
| In practice, analysis of laterally loaded piles is carried out using beams on non-linear Winkler springs model (often known as p-y method) due to its simplicity, low computational cost and the ability to model layered soils. In this approach, soil-pile interaction along the depth is characterized by a set of discrete non-linear springs represented by p-y curves where p is the pressure on the soil that causes a relative deformation of y. p-y curves are usually constructed based on semi-empirical correlations. In order to construct API/DNV proposed p-y curve for clay, one needs two values from the monotonic stress-strain test results i.e., undrained strength (su) and the strain at 50% yield stress ( | ||
| Key Words | ||
| semi-analytical FE analysis; MSD; p-y curves; interface elements; laterally loaded single piles; strain energy | ||
| Address | ||
| 1) Dj. Amar Bouzid: Department of Civil Engineering, Faculty of Sciences and Technology, University of Medea, Quartier Ain D\'hab, Medea 26000, Algeria; 2) S. Bhattachary: Department of Civil Engineering, University of Bristol, Room 237, Queens Building, Bristol BS8 1TR, UK; 3) S.R. Dash: Department of Civil Engineering, Indian Institute of Technology, Bhubaneswar, India. | ||