Abstract
ABSTRACTThis study presents centrifuge tests analysis of nonlinear soil–structure interactions and the reciprocal influence of the soil and the structure. Weak and strong motions were considered and applied to several centrifuge setups, implemented “with” or “without” buildings. For each setup, the response of the site was analyzed using arrays of accelerometers located in the soil and buildings, using time and frequency domain methods. We conclude that the presence of buildings may strongly modify the nonlinear soil response in the free field and the simplified relationships linking the contribution of each motion to the overall soil–structure system response were discussed.
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