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Structural Engineering and Mechanics
  Volume 26, Number 5, July30 2007, pages 545-556
DOI: http://dx.doi.org/10.12989/sem.2007.26.5.545
 


Inelastic transient analysis of piles in nonhomogeneous soil
S. Kucukarslan and P. K. Banerjee

 
Abstract
    In this paper, a hybrid boundary element technique is implemented to analyze nonlinear transient pile soil interaction in Gibson type nonhomeogenous soil. Inelastic modeling of soil media is presented by introducing a rational approximation to the continuum with nonlinear interface springs along the piles. Modified Ozdemir?s nonlinear model is implemented and systems of equations are coupled at interfaces for piles and pile groups. Linear beam column finite elements are used to model the piles and the resulting governing equations are solved using an implicit integration scheme. By enforcing displacement equilibrium conditions at each time step, a system of equations is generated which yields the solution. A numerical example is performed to investigate the effects of nonlinearity on the pile soil interaction.
 
Key Words
    pile-soil interaction; inelastic behavior; pile dynamics; transient response of piles.
 
Address
S. Kucukarslan: Dept. of Engineering Sciences, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
P. K. Banerjee: Dept. of Civil Engineering, State University of New York at Buffalo,14260, NY, USA
 

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