Hydrodynamic Interaction Effects in Earthquake Response of Arch Dams

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by Anil K. Chopra, Univ of California, United States,

Document Type: Proceeding Paper

Part of: Seismic Engineering: Research and Practice

Abstract: With the aid of earthquake response results it is demonstrated that the following hydrodynamic effects should be considered in the analysis of the earthquake response of concrete arch dams: dam-water interaction, water compressibility, and reservoir boundary absorption. The dam selected for this investigation is Morrow Point Dam, located on the Gunnison River in Colorado. It is a 465-ft high, approximately symmetric, single centered arch dam. As the objective of this work is to investigate only the hydrodynamic effects in the earthquake response of arch dams, the dam-foundation rock interaction effects are not included, i.e. the foundation rock underneath and surrounding the dam is assumed to be rigid.

Subject Headings: Arch dams | Earthfill dams | Earthquakes | Hydrodynamics | Dam foundations | Fluid-structure interaction | Reservoirs | Concrete dams | North America | Colorado | United States

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