ABSTRACT
The present paper focuses on the structural behaviour of beam-to-column connections between I and SHS sections using hollo-bolts on both external and corner joints. Several 3D numerical models were developed to compare numerical results with the experimental ones, previously obtained using full-scale prototypes under monotonic load. A numerical calibration was carried out with the real geometrical and mechanical properties of the different profiles. Both flush and extended endplates were used so that M16 and M20 hollo-bolts could be used to assemble the half T-stub to the tubular columns. All structures were modelled using 3D solid elements and static non-linear numerical analysis were performed. The principal conclusions concerning the moment-rotation curve and the main phenomena influencing the behaviour of the joints are discussed, regarding both plastic resistant moment and initial stiffness rotation. A comparative ratio between numerical and experimental results is presented for those structural properties.
