Seismically Induced Hydrodynamic Loads on Concrete Dams and Spillway Gates

In the report, three methods that are commonly used in the time analysis of the dam-reservoir-foundation system during an earthquake are evaluated. These include: the “added mass”, the “acoustic fluid”, and the “fluid-like material model” methods. The theory for each of the methods is briefly presented and it is illustrated by the results for a case of two concrete dams and a large radial gate.