In last decades, the potential of glass in modern architecture, due to his transparency, is increased. From this, it started to be employed as load-bearing structural material for beams and columns. As a result, there is a necessity to find solutions for its brittle behaviour and improve its post-fracture performances. One of the most developed concepts are the "hybrid glass beams," where glass is combined with other materials, like stainless steel, to increase its strength and post-fracture behaviour. In particular, this master’s thesis focuses on the correct modelling of the structural system. The primary objective is to accurately replicate the connection's stiffness using a spring constant.