Dynamic Analysis Of Concrete Arch Dams By FE-BE Approach
Including Non-uniform Ground Motion
Author(s)
V. Lotfi
Abstract
Dynamic analysis of concrete arch dams by
FE-BE approach including non-uniform
ground motion
V. Lotfi
Department of Civil and Environmental Engineering,
Amirkabir University, Iran
Abstract
In this paper, a FE-BE procedure is implemented for dynamic analysis of
concrete arch dams, which considers the effects of non-uniform ground motion.
The technique relies on the finite element method for the discretization of the
dam body, while the foundation rock domain is handled by three dimensional
boundary element formulations with no restrictions imposed on the geometry of
the canyon shape. A previously developed special purpose program is enhanced
based on this approach and the response of the Morrow Point arch dam is studied
as an example. The efficiency of the analysis is highly influenced by an
interpolation scheme, which is used for evaluation of foundation impedance
matrix and force vector. The convergence of this method is initially controlled
for uniform, as well as non-uniform ground excitat
Keywords
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