The High-Performance Dissipating Frame (HPDF) System for the Seismic Strengthening of RC Existing Buildings

In Italy as well in other earthquake-prone countries, the large number of existing buildings requiring seismic retrofitting calls for sustainable solutions able to reduce both costs and downtime. To this purpose, paper, High-Performance Dissipating Frame system (HPDF), a new strengthening solution rehabilitation buildings, is presented. HPDF based on external precast reinforced concrete (RC) frames rigidly connected structures equipped with shear damper devices order provide high dissipation capacity. The proposed permits: (i) increase sustainability through works made up from outside without removing/demolishing infills/other non-structural components, (ii) rapid execution by adopting resisting members mutually restrained steel connections, (iii) effectiveness due dissipate amount shaking energy. displacement-based design procedure applied numerical example.