Commenced in January 2007
Paper Count: 30843
Effect of Concrete Nonlinear Parameters on the Seismic Response of Concrete Gravity Dams
Abstract:Behavior of dams against the seismic loads has been studied by many researchers. Most of them proposed new numerical methods to investigate the dam safety. In this paper, to study the effect of nonlinear parameters of concrete in gravity dams, a twodimensional approach was used including the finite element method, staggered method and smeared crack approach. Effective parameters in the models are physical properties of concrete such as modulus of elasticity, tensile strength and specific fracture energy. Two different models were used in foundation (mass-less and massed) in order to determine the seismic response of concrete gravity dams. Results show that when the nonlinear analysis includes the dam- foundation interaction, the foundation-s mass, flexibility and radiation damping are important in gravity dam-s response.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1085371Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1926
 Pal N. "Nonlinear earthquake response of concrete gravity dams".Report NO. EERC 74-14, Earthquake Engineering Research Center, University of California, Berkeley,1974
 Bhattacharjee, S.S. and Leger, P. "Seismic cracking and energy dissipation in concrete gravity dams", Earthquake Engineering & Structural Dynamics, 22, 991-1007, 1993.
 El-Aidi, B. and Hall, J.F.,"Nonlinear earthquake response of concrete gravity dams, part1:modeling", Earthquake Engineering & Structural Dynamics, 18, 837-851, (1989)
 El-Aidi, B. and Hall, J.F.,"Nonlinear earthquake response of concrete gravity dams, part2:behavior ", Earthquake Engineering & Structural Dynamics, 18, 853-865, (1989)
 Fenves, G., 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, No.5, pp. 663-680, 1984.
 Ghaemian, M., Ghobarah, A. "Staggered Solution Schemes for Dam- Reservoir Interaction", Journal of Fluid and Structures, Vol. 12, pp. 933- 948, 1998.
 Guanglun W, Pekau O.A, Chuhan Z, Shaomin W. "Seismic Fracture Analysis of Concrete Gravity Dams Based on Nonlinear Fracture Mechanics",Engineering Fracture Mechanics,Vol.65,pp.67-87 ,2000
 Mirzabozorg H, Ghaemian M. "Nonlinear behavior of mass concrete in three-dimensional problems using a smeared crack approach",Eartquake Engineering and Structural Dynamics,Vol34,pp247-269 ,2005
 Calayir Y, Karaton M. "seismic fracture analysis of concrete gravity dams including dam-reservoir interaction", Computers and Structures 2005,Vol.83,pp.1595-1606
 Sharan, S. "Modeling of radiation damping in fluids by finite elements", International Journal for Numerical Methods in Engineering, Vol. 23, pp. 945-957 , 1986.
 Ghaemian, M., "Manual of NSAG-DRI, a computer program for nonlinear seismic analysis of gravity dams including dam -reservoirfoundation interaction", 2008
 US. Army Corps of Engineers (USACE) "Time-History Dynamic Analysis of Concrete Hydraulic Structures; Chapter 2-Analytical Modeling of Concrete Hydraulic Structures, December 2003
 US. Army Corps of Engineers (USACE) "Earthquake Design and Evaluation of Concrete Hydraulic Structures", Chapter 4-Methods of Seismic Analysis and Structural Modeling, May 2007
 PEER Strong Motion Database, http://www.peer.berkeley.edu.