Earthquake forces on structure are of great concern to the engineers. To minimize the effects of an earthquake and lateral loads,the steel braced frames are used. It is one of the systems which plays an effective role in resisting the lateral loads the new type of bracingsystem called buckling restrained braces are introduced to overcome the drawbacks of conventional bracing system. The project work is tostudy buckling restrained braces. The analysis is done using MATLAB. In the present study, a code for a building model is developed toanalyze the behaviour of the structure without BRB. Time history method is used to determine the dynamic response of the structure. Amathematical model was created to perform modal time history analysis. Time stepping was performed using Newmark’s Beta modified forlinear acceleration. The response parameters such as Base Shear, Story displacement, Time period, Inter-story drift are evaluated to studythe structural performance. The same model results are validated in ETABS v16. Further, a code will be developed for a building structurewith BRB to compare the response of both structures.