Kinematic pile response to vertical P-wave seismic excitation

George Mylonakis*, George Gazetas

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

30 Citations (Scopus)

Abstract

An analytical solution based on a rod-on-dynamic-Winkler-foundation model is developed for the response of piles in a soil layer subjected to vertical seismic excitation consisting of harmonic compressional waves. Closed-form solutions are derived for: (1) the motion of the pile head; (2) the peak normal strain in the pile, and (3) the group effect between neighboring piles. The solutions are expressed in terms of a dimensionless kinematic response factor 1ν, relating pile-head motion and free-field soil surface motion, a dimensionless strain transmissibility factor 1ε, relating pile and soil peak normal strains, and a pile-to-pile interaction factor α measuring group effects. It is shown that a pile foundation may significantly reduce the vertical seismic excitation transmitted to the base of a structure.

Original languageEnglish
Pages (from-to)860-867
Number of pages8
JournalJournal of Geotechnical and Geoenvironmental Engineering
Volume128
Issue number10
DOIs
Publication statusPublished - 1 Oct 2002

Keywords

  • Excitation
  • Kinematics
  • Pile foundations
  • Piles

Fingerprint Dive into the research topics of 'Kinematic pile response to vertical P-wave seismic excitation'. Together they form a unique fingerprint.

Cite this