Computational identification of real displacements of an arch dam using nonlinear material with geochemical damping

摘要

The Belesar dam is an impressive arch dam existing in Spain which has experienced an unusual displacements field due to geochemical reactions between alkaline components of the cement and concrete aggregates. A preliminary study was carried out over past decade intended to computationally model dam structural behaviour. Recently, a new study containing improvements with regards to the previous one has been completed. The research worked out defines a sophisticated constitutive law for the concrete including orthotropic geochemical damping. The numerical results show a good adequacy with respect to the measured displacements of the dam.