A multi-criteria approach for selecting the seismic retrofit intervention for an existing structure accounting for expected losses and tax incentives in Italy

A framework for decision making on seismic retrofit is proposed. Its application to an RC-frame building, assumed as case study, is presented. Four different retrofit strategies (confinement of columns by glass fibre reinforced polymers, steel bracing, concrete jacketing of columns, and base isolation) are compared according to a set of criteria, including fiscal benefits. The discussion of the results highlights the main impact that the deductibility of intervention costs has on the decisions by owners.