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The vulnerability of buildings and reinforcing them is one of the important issues for earthquake prone countries. In recent decades, studies on improving and strengthening different structures have led to innovation of new and different methods in this field. Most of these method require a break in utilization, so that the reinforcement operation can be finished. Various methods such as adding structural components (steel and concrete shear wall, steel cross braces and buckling restrained braces), strengthening weak component parts and structure use change can be used to improve the structure’s seismic performance. In response to many scientific issues and economic considerations, engineers usually use converge buckling restrained braced frames as a resistant system against lateral loads during an earthquake. These cross braces will lead to increased rigidity and resistance in concrete structures. In this research, a method is presented to create a simple model of buckling restrained braces. After introducing the components of buckling restrained braces, a sample of this type of cross brace will be modelled in component-restricted Abaqus Software considering all the used items. The goal of this research is to numerically analyze the behavior of buckling restrained braces (BRB) in terms of resistance, ductility and energy absorbability. The results indicate the higher influence of shear wall on strengthening concrete structures compared to a building braced with one BRB opening.
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