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A numerical study on soil-group-pile-bridge-pier interaction under the effect of earthquake loading

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8 Scopus citations

Abstract

There have been many costly damages of group-pile foundation of bridge-pier in soft or saturated-medium dense sandy ground after strong earthquakes. This study investigated the dynamic behavior of a 2 × 2 bridge-pier-group-pile foundation installed in a two-layer ground commonly found in Japan. A series of three-dimensional (3D) effective stress analysis, which adopted advanced cyclic elasto-plastic soil model and nonlinear axial force dependence reinforced-concrete model, has been implemented to demonstrate the interaction between the soil-group-pile-bridge-pier during an earthquake of the magnitude of the 1995 Kobe earthquake. The damages of the 2 × 2 group-pile foundation have been quantitatively found to be either caused by the inertial loading of the superstructure or the kinematic interaction of the soils.

Original languageEnglish
Article number1350037
JournalJournal of Earthquake and Tsunami
Volume8
Issue number1
DOIs
StatePublished - Mar 2014

Keywords

  • Bridge-pier
  • dynamic response
  • liquefaction
  • pile foundation
  • soil-structure interaction

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