International Journal for Numerical and Analytical Methods in Geomechanics · 1996 · 23 citations · 17 references
EngineeringCivil EngineeringEarth SciencesEarthquake EngineeringFinite Element AnalysisSoil MechanicsEarthquake Response Of StructuresGeotechnical Earthquake EngineeringNonlinear Finite Element AnalysisSoil DynamicsSoil StructureSoil-structure InteractionCyclic MobilityFinite Element ModelingMixture TheorySaturated Soil BehaviorSeismic AnalysisSeismic ResponseShaking TablesSoil Constitutive Models
A non-linear seismic response analysis method for 2-D saturated soil–structure system with an absorbing boundary is presented. According to the 3-D strain space multimechanism model for the cyclic mobility of sandy soil, a constitutive expression for the plane strain condition is first given. Next, based on Biot's two-phase mixture theory, the finite element equations of motion for a saturated soil–structure system with an absorbing boundary during earthquake loadings are derived. A simulation of the shaking table test is performed by applying the proposed constitutive model. The effectiveness of the absorbing boundary is examined for the 2-D non-linear finite element models subjected to random inputs. Finally, a numerical seismic response analysis for a typical saturated soil–structure system is performed as an application of the proposed method.
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