Performance analysis of post tensioning beam to column connections under cycling loading in prefabric structures

This study covers the experimental and analytical modeling of prefabricated column-beam connection that were constructed with pre-stressing cables and after tension. Moment capacity, stiffness and energy dissipation capacities of monolithic and prefabricated members were compared, and properties of prefabricated members were found to be quite sufficient. Especially the prefabricated member with a 15,24 mm diameter pre-stressing cable that is pre-stressed up to 60% of the ultimate strength had nearly the same moment capacity with monolithic member. Stiffness and energy dissipation capacities of the prefabricated members were lower than the monolithic members. There are differences at load carrying capacities and stiffness for the initial cycles between analytical model and experimental results, and at further cycles analytical model of the specimens were matched quite well, and load capacities and stiffnesses of the members were close. Key Words : Prefabricated column-beam connection