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The Seismic behaviour of an Arch Dam-Reservoir-Foundation System

pubblicazioni - Memoria

The Seismic behaviour of an Arch Dam-Reservoir-Foundation System

È stata effettuata la modellazione a elementi finiti con il codice COMSOL Multiphysics del problema sismico dell’interazione fluido-struttura per il caso di una grande diga ad arco.

The paper summarises the results of a linear static and seismic analyses of the arch dam proposed as the Theme A of the 12th ICOLD Benchmark Workshop. The analyses have been carried out using the COMSOL Multiphysics software, making reference to the coarse finite elements mesh provided by the formulators. In the dynamic analysis, the water-dam-foundation interaction has been taken into account. The fluid has been modelled by means of acoustic elements. With reference to the fluid domain boundary conditions, the following assumptions have been considered:•Wave reflecting conditions between the fluid and the foundation, as well as the fluid and the upstream face of the dam.•Non-reflecting condition at the end of the reservoir channel.Results have been provided according to the requests of the formulators in terms of displacements, hoop and vertical stresses on three vertical sections of the dam.

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