Local site effect of soil-rock ground: 1-g shaking table test

Construction sites are not generally flat but heterogeneous. It would be of significance to explore the patterns ground response where soil and rock strata laterally distribute near surface. Shaking table test scaled free-field model is conducted investigate local site effect caused by influence soil-rock strata. In this test, with artificial designed reproduce dynamic characteristics prototype. Recorded earthquake waves site-specific selected as bedrock motions inputted from shaking table, in both transverse (SH wave) longitudinal (SV directions. Four classified according combination deposit rock. The standard spectral ratio (SSR) introduced identify fundamental frequency amplification amplitude four sites. Correspondingly, one-dimension (1D) theoretical analysis used clarify effects affected constitution at each comparing ratios 1D results (Aggravation factor). Site-specific parameters, such peak acceleration, arias intensity, acceleration spectra, documented discussions. found that amplifications locations vary thickness deposit, nonlinearity property under increasing seismic scattering high-frequency components input motion.