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

• MURONO Yoshitaka

  Earthquake & Structural Engineering Laboratory, Structures Technology Division

• NISHIOKA Hidetoshi

  Foundation & Geotechnical Engineering, Structures Technology Division

• NOGAMI Yuta

  Earthquake & Structural Engineering Laboratory, Structures Technology Division

抄録

It is well known that the 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 will 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 the 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. Most of these methods, however, only take into account local-nonlinearity effects. Therefore, a methodology to evaluate the effects of both local-nonlinearity and site-nonlinearity are developed in the paper. The accuracy of this method is confirmed by comparing simulated and experiment results.

収録刊行物

• Quarterly Report of RTRI

  Quarterly Report of RTRI 52 (1), 45-50, 2011

  公益財団法人 鉄道総合技術研究所

キーワード

• pile foundation
• p-y curve
• local-nonlinearity
• site-nonlinearity

詳細情報

• CRID: 1390282679441510272
• NII論文ID: 130004457837
• DOI: 10.2219/rtriqr.52.45
• ISSN: 18801765
• ISSN: 00339008
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可