Numerical Investigation of the Effect of Vertical Load on the Lateral Response of Piles
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VIEW THE REPLYPublication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 133, Issue 5
Abstract
The laboratory and field test data on the response of piles under the combined action of vertical and lateral loads is rather limited. The current practice for design of piles is to consider the vertical and lateral loads independent of each other. This paper presents some results from three-dimensional finite-element analyses that show the significant influence of vertical loads on a pile’s lateral response. The analyses were performed in both homogeneous clayey soils and homogeneous sandy soils. The results have shown that the influence of vertical loads on the lateral response of piles is to significantly increase the capacity in sandy soils and marginally decrease the capacity in clayey soils. In general, it was found that the effect of vertical loads in sandy soils is significant even for long piles, which are as long as 30 times the pile width, while in the case of clayey soils, the effect is not significant for piles beyond a length of 15 times the width of the pile. The design bending moments in the laterally loaded piles were also found to be dependent on the level of vertical load on the piles.
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Acknowledgments
The writers would like to thank the director, CBRI, for encouragement and interest in this research. The first writer is also thankful to the director, CBRI, for the leave sanctioned to pursue his doctoral research as an external PhD scholar at IIT, Madras, Chennai.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 133 • Issue 5 • May 2007
Pages: 512 - 521
Copyright
© 2007 ASCE.
History
Received: Jan 27, 2006
Accepted: Nov 9, 2006
Published online: May 1, 2007
Published in print: May 2007
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