Uni and Bi-directional Quasi Static Tests on Alternative Hybrid Precast Beam Column Joint Subassemblies

Abstract

Conference ABSTRACT: Recent developments on high performance seismic resisting precast concrete frame systems, based on the use of unbonded post-tensioned tendons with self-centring capabilities in combination with additional sources of energy dissipation, are herein presented. Alternative arrangements for jointed ductile connections to accommodate different structural or architectural needs have been implemented and validated through quasi-static cyclic tests on a series of 2/3 scaled beam-column subassemblies under uni- or bi-directional loading regime. The satisfactory results confirmed the unique flexibility and potentiality of the proposed solutions for the development of the next generation of seismic resisting buildings. 1