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Nonlinear dynamic analysis of arch dams with considering the effects of nonhomogeneity and discontinuities of foundation rock

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Authors Nonlinear dynamic analysis of arch dams with considering the effects of nonhomogeneity and discontinuities of foundation rock

  A Ferdousi - Department of Civil Engineering, Sahand University of Technology, Tabriz, Iran
A. R. MostafaGharabaghi -
M. T. Ahmadi - Department of Civil Engineering, Tarbiat Modarres University, Tehran, Iran
M. R. Chenaghlou -

Abstract:

The effects of dam-foundation interaction on the dynamic response of dam–reservoir–foundation system subjected to non-homogenous material properties on foundation rock and changes in contact characteristics of baserock discontinuities are investigated by using the finite element approach in this paper. A concrete arch dam ischosen as a numerical example and the Taft Lincoln School records of the California earthquake in 1952 is selected as a ground motion. In this regard, the proper modeling of truncated boundary conditions at far-end of rock foundation and reservoir fluid domain, as well as correct applying of in-situ stresses for foundation rock is important. In the current study, with study of some existing open source software, a FORTRAN language, nonlinear Finite Element program is developed and is used after assessment. The analysisresults revealed the essential role of modeling non-homogeneity, discontinuities andboundary conditions of foundation rock medium under seismic excitation

Keywords:

Concrete arch dam, Non-homogeneous and discontinuous rock foundation,Nonlinear finite element dynamic analysis, Boundary conditions, in-situ stress

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COI code: ICCT04_414

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Ferdousi, A; A. R. MostafaGharabaghi; M. T. Ahmadi & M. R. Chenaghlou, 2012, Nonlinear dynamic analysis of arch dams with considering the effects of nonhomogeneity and discontinuities of foundation rock, 4th International Conference on Seismic Retrofitting (Earthquake Engineering and new Technology on Retrofitting), تبريز, انستيتو مقاوم سازي لرزه اي ايران, https://www.civilica.com/Paper-ICCT04-ICCT04_414.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Ferdousi, A; A. R. MostafaGharabaghi; M. T. Ahmadi & M. R. Chenaghlou, 2012)
Second and more: (Ferdousi; MostafaGharabaghi; Ahmadi & Chenaghlou, 2012)
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Type: state university
Paper No.: 3552
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