Effects of Space Distribution of Excitation on Seismic Response of Arch Dams
Publication: Journal of Engineering Mechanics
Volume 128, Issue 7
Abstract
The effects of the ground motion spatial variation and of the canyon geometry on the dynamic response of arch dams during the event of an earthquake is studied in this paper. The seismic response of a dam subject to time harmonic longitudinal, shear, and Rayleigh waves impinging the dam site from different directions is analyzed. Several canyon and reservoir geometries are considered. A three-dimensional boundary element model which allows for the rigorous representation of the dynamic interaction between the dam, the foundation rock, and the water is used. The foundation rock is modeled as a uniform viscoelastic boundless domain where the incident traveling wave field is defined by its analytical expression, which may include any spatial variation. The obtained results show the importance of three-dimensional effects which are many times neglected.
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Information
Published In
Journal of Engineering Mechanics
Volume 128 • Issue 7 • July 2002
Pages: 759 - 768
Copyright
Copyright © 2002 American Society of Civil Engineers.
History
Received: Dec 28, 2001
Accepted: Dec 28, 2001
Published online: Jun 14, 2002
Published in print: Jul 2002
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