The research work presented is aimed at the assessment of the influence of infill walls on the seismic vulnerability of existing RC buildings. In particular, the paper presents some results obtained from the analysis of recurrent building typologies, for which the structural representative models have been defined from the observation of existing building stock at the regional scale. A sensitivity analysis was performed by assuming various hypothesis about the infills’ features, and the results allowed to point out and discuss the differences regarding the structural behavior, the seismic demand and other representative output parameters.
