Earthquake Behavior of Concrete Gravity Dams During Ground Motions

Abstract The stability evaluation of the dams subjected to seismic excitations is really very complex as earthquake response concrete gravity dam depends upon its connection joints with foundation rock. This study presents considering welded contact and friction along dam-foundation rock interface. Friction provided using elements. Two-dimensional finite element model Oued Fodda dam, located in Chlef at northwestern part Algeria, used for this purpose. Nonlinear analyses system are performed ANSYS software. reservoir water modeled added mass Westergaard approach. Druker-Prager employed nonlinear analysis concrete. surface-to-surface elements based on Coulomb's law describe friction. These use a target surface form pair. According study, when considered joints, sliding displacement base occurs decreases deformation response; principal stresses body shear force both heel toe dam.