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COMMISSION INTERNATIONALE DES GRANDS BARRAGES ------- VINGT-SIXIÈME CONGRÈS DES GRANDS BARRAGES Autriche, juillet 2018 ------- QUALIFICATION OF DYNAMIC ANALYSES OF DAMS AND THEIR EQUIPMENT---OUTCOME OF JCOLD-CBFR TECHNICAL EXCHANGE--- N. MATSUMOTO(1) & J. J. FRY(2) (1) Managing director , JAPAN COMMISSION ON LARGE DAMS (2) Dam expert, Centre d’ingénierie Hydraulique, EDF JAPAN AND FRANCE 1. JCOLD-CFBR TECHNICAL EXCHANGE The technical exchange between CFBR and Japan Commission on Large Dams (JCOLD) has been conducted for the qualification of seismic dam analyses in last five years since 2013. The first objective was the comparison between the new French legislation and the current Japanese legislation, discussion about their implementation, the performance of dams under strong motions and the feedback from such performance on dam modeling. The second objective was the validation of dynamic analysis by modeling the performance of some large dams under strong motions earthquakes. The third objective was the calibration of simplified methods according to the large seismic data gathered in Japan. Therefore, the analytical procedure ranges from simplified methods for providing preliminary assessment to sophisticated methods for simulating the nonlinear deformation of dams during large earthquakes. Analyses of appurtenant structures of dams are also included. 15