Dynamic Analysis of Dam-Soil Interaction in Time Domain

In dynamic analysis of many lifeline structure, the soil-structure interaction plays a very important role. In this study, the effect of soil-structure interaction on the dynamic response of structure has been examined.Time domain dynamic analysis of inclined dam−soil interaction was conducted using finite element method and scaled boundary finite element. The substructure method is used to analyze soil-structure system. Finite element method is used to analyze the structure and scaled boundary finite element is used to analyze the unbounded soil region. The scaled boundary finite element is a numerical finite element-based procedure in the circumferential direction and analytical procedure in the radial direction. Due to analytical solution in the radial direction, the radiation condition is satisfied exactly. The soil region is considered as a homogeneous half-space. The material behavior of dam and soil is assumed to be linear. A two dimensional plane strain dam model has been used for the time history analysis to compute the responses against earthquake loading considering the effect of soil-structure interaction

کلیدواژه ها:

Concrete dam ، soil-structure interaction ، scaled boundary finite element ، Newmark algorithm ، seismic response