Dynamic soil±pile±foundation±structure interaction: records and predictions
نویسنده
چکیده
The problem of soil±pile±foundation±superstructure interaction is examined, and a simple rational procedure to analyse the response of a structure supported on pile groups is presented. This procedure combines theories for the computation of the dynamic impedances and kinematic±seismic response factors of pile foundations with a multi-degree-of-freedom structural model. The procedure is applied to compute the response of a bridge in Rio Dell, California, which was shaken by the Ms = 7 ́0 Petrolia earthquake in 1992. The predicted response agrees well with recorded data. The signi®cance of considering the frequency-dependence of the pile foundation impedances in the analysis of the response of the superstructure is discussed.
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