The multilayered soil-structure seismic interaction and structure vibration mechanism

Abstract

The morphology of subsoil influences the soil-structure interaction and it makes complex to predict seismic structural stability. The structural elements seismic response associate to soil-structure interaction requires expansive investigation considering soil morphology. The main objective of the present study is to identify the influence of near-fault ground motion mechanism reached by the structure element for evaluating strain energy modification due to the morphology of subsoil and developing load and displacement on the structural element with built-up synthetic subsoil for soil-structure seismic interaction design. The results of the numerical simulation revealed that (i) the displacement mechanism and the applied seismic load of the structural element, (ii) the strain energy modification and (iii) the structural vibration patterns of continuous beam in a timber frame have been changed in association to the soil foundation characteristics. The innovation of this study is the soil-structure interaction, the soil layers interaction, the near-fault ground motion and the mechanical properties of the soil at different location of the soil foundation, that are fundamental parameters to control continuous timber beam seismic design.