Seismic p-y Model of Pile Foundation Taking into Account Soil-Nonlinearity

It is well known that earthquake response of a pile-supported structure is strongly affected by dynamic soil-pile interaction. When the structure is subjected to severe ground motion, the soil behaves in a nonlinear manner. Two kinds of soil nonlinearity affect the characteristics of dynamic soil-pile interaction. One is the nonlinearity which appears in the soil surrounding the pile and the other is the nonlinearity which appears in the free-field. The nonlinearity of soil surrounding the pile is caused by the inertia force transmitted from the superstructure onto the pile head (i.e., local-nonlinearity). Soil nonlinearity in the free-field is caused by transmission of shear waves (i.e., site-nonlinearity). Various tools based on the Sway-Rocking model have been developed to analyze nonlinear dynamic soil-pile interaction. However, most of these methods only consider local-nonlinearity effects. Therefore, a methodology to evaluate the effects of both local-nonlinearity and site-nonlinearity are developed in this paper. The accuracy of this method is confirmed by comparing simulated and experiment results.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00339008
• Authors:
  • Murono, Yoshitaka
  • Nishioka, Hidetoshi
  • Nogami, Yuta
• Publication Date: 2011-2

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References;
• Pagination: pp 45-50
• Serial:
  • Quarterly Report of RTRI
  • Volume: 52
  • Issue Number: 1
  • Publisher: Railway Technical Research Institute
  • ISSN: 0033-9008
  • EISSN: 1880-1765
  • Serial URL: https://www.jstage.jst.go.jp/browse/rtriqr/-char/en
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Dynamic structural analysis; Foundation engineering; Pile foundations; Railroads; Seismicity; Soil structure interaction; Support piles
• Uncontrolled Terms: P-Y curves
• Subject Areas: Bridges and other structures; Railroads;

Filing Info

• Accession Number: 01339937
• Record Type: Publication
• Files: TRIS
• Created Date: May 18 2011 10:51AM