Abstarct: In this thesis, a finite element model of a buckling-restrained brace (BRB) was developed and validated using Abaqus software baxsed on an existing experimental model. Additionally, a separate verification was carried out on a prestressed concrete beam to ensure the accuracy of the prestressing method implementation in the software and the reliability of the resulting responses. Subsequently, using both validated finite element models, new configurations were investigated: one without a steel tube and reinforced with prestressed strands, another with an external wrapping, and a third incorporating steel end rings at the brace terminals and transition zones. These configurations were analyzed to explore the feasibility of eliminating the steel tube and employing prestressing as an alternative confinement technique within the concrete casing, and to assess its impact on the cyclic force–displacement (hysteresis) behavior of the proposed BRB system. A primary objective of this study was to evaluate the potential for optimizing this system by reducing its weight and construction costs through the removal of the steel tube and the use of prestressed concrete casing. The analyses indicated that the proposed prestressed concrete model could achieve comparable or, in some cases, superior performance to that of conventional BRBs. The results demonstrated that the application of prestressing not only preserved the hysteretic behavior but also contributed to a reduction in residual deformations. This approach has the potential to decrease overall weight and construction expenses; however, further studies are necessary to optimize the execution process and to control potential cracking in the concrete. Moreover, the two proposed models exhibited weight reductions of approximately 23% and 16%, respectively. In both cases, a decrease in initial and post-yield stiffness was observed, along with a reduction in energy dissipation capacity, while an increase in damping was also noted.