Seismic Soil-Structure Interaction Analysis in Time-Domain Based on Combination Computation Method of Interaction Force

Abstract eng:
Combining lumped-parameter model and time-domain difference recursive filter model, a time-domain difference approach of interaction force is proposed. The system stability is studied in this paper. Based on general FEM software and the proposed time-domain computation model, history analysis programs with the SSDI effect is developed. After all, numerical example is presented to verify the validity of proposed method. The effect of ground impedance frequency dependency on the dynamic response of soil-structure system is preliminary discussed.

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