Analytic calculation of load–displacement for uplift piles using hyperbolic transfer function

Abstract

By using the hyperbolic transfer function and taking into consideration the deadweight of pile shaft, a set of analytical equations for pile load–displacement relationship are derived for uplift piles in a single soil stratum. Then the analytical equations are applied to multilayered strata. The accuracy of the proposed method is examined by the comparison of calculated results with laboratory and field pullout load tests. Predicted and measured load–displacement curves showed good agreement, indicating that this analytical solution is reasonable and feasible for practical use.

Keywords:

• Uplift pile
• Load–displacement relationship
• Non‐linear analysis
• Load transfer

The study reported herein is supported by the National Nature Science Foundation of China with the grant no. 50779034.