Issue 51

A. Namdar, Frattura ed Integrità Strutturale, 51 (2020) 267-274; DOI: 10.3221/IGF-ESIS.51.21 267 The multilayered soil-structure seismic interaction and structure vibration mechanism Abdoullah Namdar Faculty of Architecture and Civil Engineering, Huaiyin Institute of Technology, Huai’an, China Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam Faculty of Environment and Labour Safety, Ton Duc Thang University, Ho Chi Minh City, Vietnam abdoullah.namdar@tdtu.edu.vn A BSTRACT . 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. K EYWORDS . Multilayered Soil; Structure; Strain Energy; Displacement; Vibration Patterns. Citation: Namdar, A., The multilayered soil- structure seismic interaction and structure vibration mechanism, Frattura ed Integrità Strutturale, 51 (2020) 267-274. Received: 14.09.2019 Accepted: 28.11.2019 Published: 01.01.2020 Copyright: © 2020 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. I NTRODUCTION he structure seismic response is extremely related to near-fault ground motion characteristics and, on the other hand, due to subsoil morphology at different locations of the earth, the seismic travel paths characteristics are changed during seismic wave travel from the source to the base of the structure. Also, seismic wave changes in the construction site from a location to nearby location considerably, this alters the seismic wave and creates complex prediction for seismic stability of a structure. In the most urban construction site, the buildings behave with different seismic response T