Empirical evaluation of kinematic soil-structure interaction effects in structures with large footprints and embedment depths

Kinematic soil-structure interaction (SSI) effects cause foundation-level motions to deviate from free-field motions. Simplified procedures account for kinematic SSI are available in design guidelines regular buildings and have been calibrated with limited foundation size depth of embedment. As a result, their application structures much larger footprints deeper embedment depths is questionable. can be used reduce ground relative those specified the free-field, this cost-effective especially depths. The objective study quantify extent deviations between use simplified empirical data select group In study, dataset earthquake recorded at instrumented Japan evaluate effects, which quantified terms transfer function ratio response spectra corresponding Transfer functions represent level structure motion frequency domain obtained by dividing Power Spectral Density motion. Finally, these compared formulations such as semi-empirical ASCE/SEI 41–17 recommended spectra, results presented residuals. overall trends residuals indicate that current tend overestimate large depths, overestimation higher functions. Thus, future studies, should revised applications