Impact of Local Site Conditions on Simulation of Non-stationary Spatial Variable Seismic Motions

It is commonly accepted that multi-scale structures are subject to spatially variable seismic motions. This spatial variability of motions described by different intensities at locations due the coherency loss effect, wave passage effect and local site conditions. For structures, estimation excitations must consider these factors. Often, influence motion on dynamic response performed neglecting effect. In several cases, it has been observed high caused amplification besides effects. study aims analyze impact conditions this purpose, a method simulation performed. The signals bedrock defined considering target power spectral density model. According propagation theory, projection surface realized. results show induces an undervaluation excitations.