ANALYSIS OF A STEEL STRUCTURE CONSIDERING BRACED AND UNBRACED ECCENTRIC CONDITION USING ETABS

In modern seismic design, damping devices are used to increase the capacity of structures to dissipate energy. This Project evaluates the efficiency of using a passive friction damper system in a structure compared with typical structures and the influence of the damper’s capacity on the structural response. The analysis concludes that dampers with lower capacity slip more times during earthquake than dampers with bigger capacity but the acceleration result increases. The main objective of this research is to assess the seismic performance of Eccentrically Braced Frames of different configurations. Modelled Eccentrically Braced Frames subjected to both linear and nonlinear analysis in ETABS. The linear analysis gives an insight to mode shapes and mass participation ratios