Fluid-Structure Interation in Seismic Analysis of Arch Dams

This paper aims at studying the dynamic behaviour of arch dams, taking into account Fluid-Structure Interaction (FSI). For this purpose, the couple Boundary Elements and Finite Elements (BE-FE) analysis is used to take into account the FSI. This method is firstly verified by an analytical solution in a case of simple model. The results obtained by the BE-FE model are then compared with the classical Westergaard approach in two case studies. The influence of the compressible and incompressible fluid is also examined by using the BE-FE model.