Stochastic nonlinear ground response analysis via a case study site in Shiraz city

This study attempts to investigate the influence of dynamic soil properties uncertainties on ground response analysis via a case site. For this purpose, nonlinear time-domain and in parameters are coupled simultaneously using coded program MATLAB. To take full advantage real data, two investigation boreholes drilled The is performed deterministically then extended stochastic context order into consideration variability Plastic Index, shear wave velocity, unit weight soil. In part study, capability three different methods for predicting fundamental period site including modal analysis, approximate method, investigated. achieve maximum Coefficient Variation (COV) peak motion parameters, period, spectrum, amplification factor calculated. results demonstrate that heterogeneity has significant effect variation surface Peak Ground Displacement (PGD). Among other responses, received least from parameters’ uncertainty.