ABSTRACT
In steel frame structures, the behavior of the joints plays a fundamental role in the strength of the entire structure. Moment resistance and initial stiffness as the main parameters of the joints are required to describe the behavior of the joints in the persistent design situation. The behavior of double-sided bolted end-plate joints in the case of an accidental situation is presented on the basis of experimental studies. The development of the strength mechanisms of the entire structure as the phases of bending and arc action followed by catenary action in the mechanism preventing the collapse of steel structures is presented. Comparative results of the load-bearing capacity and ductility of flush and extended end-plate joints are presented. In addition, the deformation of the joint zone, the ductility of the connection, and the failure modes of the joints are compared. Finally, several design recommendations for the shaping of joints are included.
