ASCE will be sunsetting the Civil Engineering Database (CEDB) in the coming months. We encourage you to start using the ASCE Library to perform content searches. In the ASCE Library, you can save your search results as well as receive email content alerts when new content relevant to your area of interest is published. Try it out today at https://ascelibrary.org.

 

Lateral Impedance of Contact Pile Foundations

by Mushtaq A. Nasim, Ocean County Coll, Toms River, NJ, USA,
Michael J. O'Rourke, Ocean County Coll, Toms River, NJ, USA,



Document Type: Proceeding Paper

Part of: Dynamics of Structures

Abstract:

The static and dynamic lateral impedance of pile foundations for which there is continuous contact between the bottom of the pilecap and the underlying soil is investigated. A parametric analysis of finite element results for the lateral impedance of a single pile with a concentric circular pilecap on a uniform soil layer over bedrock is presented. For the range of system parameters considered, the static lateral stiffness for these single pile foundations is found to be dominated by cap-soil rather than pile-soil interaction. The dynamic lateral impedances of a single pile Contact foundation is found to vary with forcing frequency in a manner similar to that for a Mat foundation. Approximate procedures for establishing the dynamic impedance of a Contact foundation, where one knows the impedance of the corresponding Mat foundation, are presented.

Subject Headings: Pile foundations | Mat foundations | Finite element method | Materials engineering | Dynamic structural analysis | Dynamic loads | Structural dynamics

Services: Buy this book/Buy this article

 

Return to search