The above mentioned RSA procedure has likewise been modernized. These developments greatly improve the accessibility and functionality of the EAGD-84 program, and provide users with sufficient control over the overall damping in the dam-water-foundation system to ensure consistency with recent research. Both analysis procedures include the effects of dam-water foundation interaction, known to be important in the earthquake response of dams.Presented in this thesis are two important developments that have now been added to the computer program EAGD-84, implementing the RHA procedure: (1) a set of Matlab modules ? including an easy-to-use graphical user interface (GUI) ? has been developed, providing users with the capability of pre-processing input and post-processing analysis output from EAGD-84 in the Matlab scripting language (2) a more complete set of compliance data that govern the interaction between the dam and the foundation region has been incorporated in the program. A two-stage procedure has been proposed for the elastic analysis phase of seismic design and safety evaluation of concrete gravity dams: (1) response spectrum analysis (RSA) in which the peak value of response is estimated directly from the earthquake design spectrum and (2) response history analysis (RHA) of a finite element idealization of the dam monolith.
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