Nonlinear Finite-Element Modeling of Batter Piles under Lateral Load

Rajashree, SS and Sitharam, TG (2001) Nonlinear Finite-Element Modeling of Batter Piles under Lateral Load. In: Journal of Geotechnical & Geoenvironmental Engineering, 127 (7). pp. 604-612.

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Abstract

In this paper, a finite-element model is developed in which the nonlinear soil behavior is represented by a hyperbolic relation for static load condition and modified hyperbolic relation, which includes both degradation and gap for a cyclic load condition. Although batter piles are subjected to lateral load, the soil resistance is also governed by axial load, which is incorporated by considering the P-Δ moment and geometric stiffness matrix. By adopting the developed numerical model, static and cyclic load analyses are performed adopting an incremental-iterative procedure where the pile is idealized as beam elements and the soil as elastoplastic spring elements. The proposed numerical model is validated with published laboratory and field pile test results under both static and cyclic load conditions. This paper highlights the importance of the degradation factor and its influence on the soil resistance-displacement (p-y) curve, number of cycles of loading, and cyclic load response.

Item Type:	Journal Article
Publication:	Journal of Geotechnical & Geoenvironmental Engineering
Publisher:	American Society of Civil Engineers
Additional Information:	Copyright of this article belongs to American Society of Civil Engineers.
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	09 Nov 2011 10:10
Last Modified:	09 Nov 2011 10:10
URI:	http://eprints.iisc.ac.in/id/eprint/39560

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