Earthquake Soil Structure Interaction Analysis of a Gravity Dam

Abstract

This paper presents numerical modeling and simulation issues seen in static and dynamic analysis of dam-foundation systems. Domain reduction method (DRM) is chosen as the preferred approach for seismic motion input. Proper modeling of inelastic material behavior and seismic energy dissipation is discussed. Verification and validation are essential to ensure reliability of numerical results. Numerical modeling and simulation of a soil/rock—concrete dam system subjected to static and dynamic earthquake loading are presented. It is shown that, in order to make safe and economical design decisions, engineers should have complete understanding and control of the numerical analysis process.