Steady-state and transient dynamic visco-elastic response of concrete and earth dams due to dam-reservoir interaction

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Title: Steady-state and transient dynamic visco-elastic response of concrete and earth dams due to dam-reservoir interaction
Authors: Pelecanos, L
Kontoe, S
Zdravkovic, L
Item Type: Conference Paper
Abstract: The aim of this study is to investigate the effects of dam – reservoir interaction on the dynamic response of dams. Both thin rectangular concrete cantilever and large trapezo i- dal earth dams are co n sidered with empty and full reservoir. It ha s recently been shown by Pelecanos et al. [3 2 ] that t he amplification of acceler ations at the crest of the dam depends on t he combinations of the frequency of the harmonic acceler a- tion load and the fundamental frequencies of the dam and the reservoir. T his study considers transient dyna mic loading and s elected scenarios of different combinations of the above - mentioned fr e quenc ies are examined under random seismic acceleration load. It is shown that for certain cases the amplification of accelerations of the dam can be affected by the presence of the upstream re s ervoir. In general, thin rectangular concrete cantilever dams are found to be considerably more sensitive to dam – reservoir interaction tha n large trapezoidal earth dams. Therefore, this investigation examines the significance of dam – reservoir interaction and when this intera c tion should be taken into consideration or it could be neglected.
Issue Date: 15-Jun-2017
Date of Acceptance: 31-Mar-2017
Copyright Statement: This paper is embargoed until publication.
Conference Name: 6th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering
Publication Status: Accepted
Start Date: 2017-06-15
Finish Date: 2017-06-17
Conference Place: Rhodes, Greece
Embargo Date: publication subject to indefinite embargo
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering

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