Dynamic Analysis of Concrete Gravity Dams Including Dam-Foundation Rock Interaction

Document Type : Research Article

Authors

1 M.Sc Student, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran

2 Professor, Department of Civil & Environmental Engineering, Amirkabir University of Technology, Tehran

Abstract

Past studies have shown that dam-foundation rock interaction has significant effects on dynamic response of concrete dams. Moreover, several methods have been presented to investigate this subject such as, boundary element approach or the combination of boundary element and finite element procedures. Most of these methods are relatively complicated. Therefore, in the present study, a new computer program has been developed with a simplified approach. In this program, the dam body and foundation rock are modeled by three-dimensional finite element method. The results obtained by the present method (i.e., FE-FE approach) are very similar to the results published by previous complicated methods. Furthermore, this program is able to also utilize damping solvent extraction method. Therefore, the effects of damping solvent extracting on increasing convergence rate for dynamic response of concrete gravity dams has also been studied.

Keywords

References

[1] Wolf, J. P. ,“Dynamic soil-structure interaction”, Prentice-Hall, New Jersey, 1985.
[2] Kazemi Nia Korrani H.R. ,“PACD: A program for Analysis of Concrete Dams”, Amirkabir University of Technology, Tehran, Iran, 2010.
[3] Chopra A. K. and Chakrabarti P.; “Earthquake Analysis of Concrete Gravity Dams including Dam-Water-Foundation Rock Interaction”, Earthquake Engineering and Structural Dynamics, Vol. 9, pp. 363-383, 1981.
[4] Fenves G. and Chopra A. K. ,“Earthquake Analysis of Concrete Gravity Dams including Reservoir Bottom Absorption and Dam-Water-Foundation Rock Interaction”, Earthquake Engineering and Structural Dynamics, Vol. 12, pp. 663-680, 1984.
[5] Lin H. T. and Tassoulas J. L. ,“A Hybrid Method for Three-Dimensional Problem of Dynamics of Foundation”, Earthquake Engineering and Structural Dynamics, Vol. 14, pp 61-74, 1986.
[6] Rizzo F. J., Shippy D. J. and Rezayat M. ,“A Boundary Integral Equation Method for Radiation and Scattering of Elastic Waves in Three Dimensions”, International Journal for Numerical Methods in Engineering, Vol. 21, pp. 115-129, 1985.
[7] Lotfi, V., Roesset, J. M. and Tassoulas J. L., “A technique for the Analysis of the Response of Dams to Earthquakes”, Earthquake Engineering and Structural Dynamics, Vol. 15, pp. 463-490, 1987.
[8] Medina F., Dominguez J. and Tassoulas J. L., “Response of Dams to Earthquake including Effects of Sediments”, Journal of structural Engineering, ASCE Vol. 116, pp. 3108-3121, 1990.
[9] Lotfi V. and Sharghi M. ,“Direct Frequency Domain Analysis of Concrete Gravity Dams based on the FE-BE Procedure”, Journal of Dam Engineering, Vol. 11, pp. 273-291, 2001.
[10] Chopra A. K. and Chakrabarti, P. & Gupta, S.,“Earthquake response of concrete gravity dams including hydrodynamic and foundation interaction effect”, report No. EERC-80/01, university of California, Berkeley, Jan, 1980.
[11] Wolf, J. P. and Song Ch. ,“Finite-Element Modeling of Unbounded Media”, JOHN WILEY & SONS, 1996.
Amirkabir Journal of Civil Engineering
Volume 46, Issue 1 - Serial Number 1
September 2014
Pages 11-22

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