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 language | English |
|---|---|
| Article number | 1350037 |
| Journal | Journal of Earthquake and Tsunami |
| Volume | 8 |
| Issue number | 1 |
| DOIs | |
| State | Published - Mar 2014 |
Keywords
- Bridge-pier
- dynamic response
- liquefaction
- pile foundation
- soil-structure interaction
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