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Title: Seismic analysis of pine flat concrete dam. Comparison of numerical results from 2D and 3D analysis
Authors: Azevedo, N.
Braga Farinha, M. L.
Câmara, R.
Leitão, N. S.
Keywords: Dynamic analysis;Concrete dam
Issue Date: Sep-2019
Publisher: Icold
Abstract: The concrete gravity dam proposed for the 15th International Benchmark Workshop on Numerical Analysis of dams (Theme A) was numerically studied using computational finite element modules developed by the authors for dam analysis. The computational models allow non-reflecting boundary conditions, free-field boundary conditions, fluid structure interaction following a Lagrangian displacement based formulation for the fluid and nonlinear material behaviour, both continuum damage and discrete crack approaches. The seismic analysis is carried out using a central difference method, a Newmark implicit integration scheme can be adopted for other types of loading. The computational modules have been used in the assessment of the behaviour of several operating dams. The natural frequencies and force vibration analysis (Case A), the seismic analysis for various reservoir levels following a linear elastic model (Case D) and non-linear seismic type analysis including nonlinear behaviour (Case E) are assessed and discussed using both 2D and 3D modules.
Appears in Collections:DBB/NMMR - Comunicações a congressos e artigos de revista

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