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The effect of non-uniformity in ground motions on the seismic response of arch dams
, Article SN Applied Sciences ; Volume 3, Issue 3 , 2021 ; 25233971 (ISSN) ; Sohrabi Gilani, M ; Ghaemian, M ; Sharif University of Technology
Springer Nature
2021
Abstract
Recorded ground accelerations at various locations of Karun III Dam during November 20, 2007, were recorded by an array of accelerometers located on the dam. In terms of amplitude and phase, these accelerations show non-uniformities in different elevations. In this paper, the effect of these non-uniform ground motions on the seismic response of the dam taking dam-reservoir-foundation interaction into account is investigated. The EACD-3D-2008 finite element program and ABAQUS Software are used for carrying out the seismic analyses. For this purpose, time histories of the earthquake accelerations are interpolated at nodal points located on the dam foundation interface. The analysis has been...
Three-dimensional nonlinear seismic analysis of concrete faced rockfill dams subjected to scattered P, SV, and SH waves considering the dam-foundation interaction effects
, Article Soil Dynamics and Earthquake Engineering ; Volume 31, Issue 5-6 , 2011 , Pages 792-804 ; 02677261 (ISSN) ; Mohsen Haeri, S ; Karimi, M ; Sharif University of Technology
2011
Abstract
In this study, the nonlinear seismic analysis of a typical three-dimensional concrete faced rockfill dam is reported. Three components of the Loma Prieta (Gilroy 1 station) earthquake acceleration time history are used as input excitation. The dam under study is considered as if it were located in a prismatic canyon with a trapezoidal cross-section. A nonlinear model for the rockfill material is used, and contact elements with Coulomb friction law are utilized at the slab-rockfill interface. Vertical joints in the face slab are also considered in the finite element model. A substructure method, in which the unbounded soil is modelled by the scaled boundary finite element method (SBFEM), is...