ADAS-based seismic retrofit of a 6-storey building structure

A seismic retrofit intervention based on the use of Added Damping and Stiffness (ADAS) steel dissipaters is proposed for a 6-storey building with reinforced concrete structure, an assessment analysis of which shows poor seismic performance capacities. The dampers are pre-sized by an energy-based design criterion formulated in this study, which directly relates the total number of plates of the dissipaters to the supplemental damping energy needed to jointly reduce stress states and storey drifts. A comparative analysis among three different installation hypotheses of the ADAS devices allows to select the distribution capable of attaining the best performance of the retrofit measure.