This paper presents the first results of an experimental campaign performed – at the Laboratory of Materials & Structures of the University of Salerno (Italy) – with the aim to investigate the seismic performance of RC beam-columns joints strengthened with FRP and steel systems. The complete test matrix includes eight specimens realized to be representative of existing exterior beam-column subassemblies with inadequate seismic details. Of these, six were strengthened by using different FRP systems while the remaining ones were used as reference benchmark; once damaged, some specimens were also re-tested after being retrofitted with FRP. So far, six tests have been performed of which two were carried out on repaired beam-column joints. The obtained results have allowed to draw some criticisms related to the design of the joint FRP upgrading.
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