2019 CSCE Annual Conference - Laval (Greater Montreal) Conference
Dr. Khandaker Hossain, Ryerson University
Structural performance of exterior reinforced beam-column connections made with Engineering Cementitious Composite (ECC) under bending is investigated experimentally and compared with those made of Self-Consolidating Concrete (SCC). Beam-column connections of 1/3rd scale made entirely of ECC, SCC and ECC-SCC combination (beam-column connection zone made of ECC while rest of the specimen with SCC) were tested under monotonic bending loading to failure. The performance is compared in terms of failure mode, ductility, energy absorption capacity, stiffness, moment-rotation response, stress-strain characteristics, crack patterns, number of cracks and crack widths. ECC and ECC-SCC beam-column connections has shown flexural failure at the connection towards the beam but their SCC counterparts beam shear failure. Both ECC and ECC-SCC joints have shown high energy absorption capacity and ductility (more than 200% and 70%, respectively) as well as higher ultimate load and moment capacity with lower stiffness compared to their SCC counterparts. ECC and ECC-SCC beam-column connections has exhibited multi-cracking cracking characteristics with lower crack widths compared to those with SCC.