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Appl. Sci. 2017, 7(12), 1310; https://doi.org/10.3390/app7121310

Laterally Loaded Single Pile Response Considering the Influence of Suction and Non-Linear Behaviour of Reinforced Concrete Sections

Department of Civil and Industrial Engineering, University of Pisa, Largo Lucio Lazzarino, 56122 (PI) Pisa, Italy
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Academic Editor: Stefano Invernizzi
Received: 10 November 2017 / Revised: 12 December 2017 / Accepted: 15 December 2017 / Published: 17 December 2017
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Abstract

A hybrid BEM-p-y curves approach was developed for the single pile analysis with free/fixed head restraint conditions. The method considers the soil non-linear behaviour by means of p-y curves in series to a multi-layered elastic half-space. The non-linearity of reinforced concrete pile sections, also considering the influence of tension-stiffening, has been considered. The model reproduces the influence of suction by increasing the stress state and hence the stiffness of shallow soil-layers. Suction is modeled using the Modified-Kovacs model. The hybrid BEM-py curves method was validated by comparing results from data of 22 load tests on single piles. In addition, a detailed comparison is presented between measured and computed data on a large-diameter reinforced concrete bored single pile. View Full-Text
Keywords: laterally loaded piles; single pile; boundary element method; p-y curves; tension stiffening; suction laterally loaded piles; single pile; boundary element method; p-y curves; tension stiffening; suction
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Stacul, S.; Squeglia, N.; Morelli, F. Laterally Loaded Single Pile Response Considering the Influence of Suction and Non-Linear Behaviour of Reinforced Concrete Sections. Appl. Sci. 2017, 7, 1310.

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