## 5 Conclusions  
The aim of this study was to both experimentally and numerically investigate the behavior of BRBFs. The non-linear FE model was developed and validated against the experimental results. The following conclusions can be drawn based on the results of experimental and numerical studies observed. * Although the BRB inside the steel frame was subjected to 2.69% strain of the CP under the axial compression demands, local and global deformations were not observed. For this reason, it provided symmetrical hysteretic behavior to the steel frame. The construction details of the BRB are hence acceptable. This can be useful for further studies and design provisions. * The test results indicated that the well-detailed BRBF can resist significant drift demands, while the BRB exhibited significant yielding without severe damage. This is important since BRBFs in critical applications where drift demands play a vital role can offer more resilience. * The parametric study based on material parameters indicated that the isotropic and kinematic hardening parameters had a significant effect on the hysteretic behavior of the BRB. Therefore, a fatigue test needs to be performed together with coupon tests to determine material parameters of the CP. This approach can greatly enhance the resistance of BRB against dynamic loading as well as provide a safer design. * The sufficient pretension load applied to bolts in the FEM of the steel frame resulted in no slip in the bolted connection. Therefore, the value of the friction coefficient was determined from the ultimate load capacity of the steel frame. The value of the friction coefficient between the contact surfaces of steel plates seems to be determined experimentally for further studies. Furthermore, the pretension load also has significant effects on the hysteretic behavior of the BRBF. * The value of the friction coefficient between the CP and the CM in the FEMs of BRBs and between the contact surfaces of steel plates in the FEM of the steel frame was taken as 0.05 and 0.2, respectively. The best numerical results were obtained for the BRBs and the steel frame by using these values. In addition, while the pretension load of 75 kN provided the best numerical behavior for the BRBF under the compression demands, its behavior under the tension demands was obtained by the pretension load of 35 kN. * The steel frame and BRBF were modeled by using a micro-modeling technique. The numerical results indicated that the numerical hysteretic behavior of the steel frame and BRBF was highly affected by the pretension load applied to bolts and the value of the friction coefficient between the contact surfaces of steel plates, which were parameters of micro-modeling techniques. Both calibrated material models by [PERSON] and [PERSON] [46] and [PERSON] et al. [36] provided approximately the same numerical hysteretic response for all the FEMs. The developed and validated FE model can be used as a tool to predict the structural behavior of BRBFs. * The numerical investigations of the behavior of BRBF in the literature are generally focused on the friction between the CP and CM. This paper has demonstrated that the numerical behavior of the BRBF is significantly affected not only by the friction between the CP and CM but also by the friction between contact surfaces of steel plates in the slip-critical connections, the pretension load of bolts, vertical displacements of the support, and the out-of-plane displacements of the frame. * In this study, the subassembly test of BRB, whose geometrical properties are identical to BRB4 tested by [PERSON] et al. [2], was performed. The test results demonstrated that the friction between CP and CM was acceptable and the BRB had stable hystereticbehavior. For this reason, it is thought that the BRB tested in this paper can constitute a basis for its practice as an energy damper in the structures. H.S. : Formal Analysis, Investigation, Methodology, Software, Validation, Visualization, Writing--Original Draft. R.O.