Behavior of Precast Reinforced Concrete Beam-Column Connection by Double Straight Notch Models under Lateral Cyclic Loading

The connection in precast concrete structures is an attenuation especially against the lateral forces due to the earthquake. This research is an experimental study in a laboratory with full scale, investigates the performance of two types of momentresisting connections, and compare to monolithic type, on the connection of precast beam-column, subjected to cyclic lateral load. The connection performance was evaluated including strength, deformation ductility, stiffness, crack pattern, failure mode, and energy absorption rate. The experimental results show that the failure of all specimens is considered a bending failure, which indicates that most of the cracks are oblique perpendicular to the direction of loading. It was found that the monolithic type performed more satisfactorily on strength than the two types of connection, due to its higher bending strength capacity. However, the STR-2 type is better able to absorb energy and has the lowest reduction in stiffness. Based on the acceptance criteria of ACI 374.1-05 and SNI 7834;2012, the test results show that both types of precast connections generally meet the requirements as moment-resistant precast concrete beam-column connections and can be used in precast concrete buildings with the highest earthquake risk level in Indonesia.