The Dynamic response of gravity type quay wall during earthquake including soil-sea-structure interaction

The dynamic response of gravity type quay wall during earthquake including soil-sea-structure interaction was calculated using ADINA finite element techniques. A direct symmetric coupled formulation based on the fluid velocity potential was used to calculate the nonlinear hydrodynamic pressure of sea water acting on the wall. The double asymptotic approximation (DAA) was used to account for the effects of outer fluid on the inner region. The non-associated Mohr-Coulomb material behavior was employed to model the failure of soil. The full nonlinear effective stress analysis is performed in this study and the soil – pore fluid interaction effects was modeled using porous media formulation . Viscous boundary condition was used to model the artificial boundary in direct method analysis of soil- structure interaction system and sliding contact condition was models in the interface of wall and surrounding soil. The results show the significance of seismic – induced dynamic force and consequently the seismic effect should be considered for the design of this type of structure in seismic zone.

کلیدواژه ها:

Gravity type quay wall ، Earthquake ، Soil -structure interaction ، Hydrodynamic pressure ، Fluid - structure interaction ، Porous media