Abstract: “Joints play a very important role in steel structures from the points of view of safety and optimization. In recent years progress has been made in the characterization of the behaviour of steel joints. Part of the knowledge has been integrated in the design codes, and EC3 in particular. In this code the component method has been proposed for connection analysis. However, not all the possible cases are included. One of the configurations that need to be studied is the joint studied in this research: it is a welded internal joint with beams of different depth and without stiffeners. A parametric analysis, based on previously calibrated finite element models is carried out. From the results of this analysis, the expressions for the components that form the mechanical model of the joint are proposed.”

Keywords: Semirigid joints, Steel structures, Mechanical model, Parametric analysis