A 3-D FE-BE METHOD FOR DYNAMIC RESPONSE ANALYSIS OF DAM-FOUNDATION-RESERVOIR SYSTEMS

Abstract

A simulation method is developed for the dynamic response of 3-D dam-foundation-reservoir systems. The dam is modeled with finite elements; while the foundation and reservoir are modeled with boundary elements. Interaction effects and radiation conditions can be taken into account without any geometric restrictions. Following a simple analysis, responses of a 3-D arch dam interacted with foundation and reservoir to harmonic ground motions are simulated. The dynamic interaction effects are discussed based on the computed responses of the dam and distributions of hydrodynamic pressure.