Comparison of Moment Resisting, Concentrically Braced & Eccentrically Braced Steel Frames

Moment resisting frames, concentrically Braced frames & eccentrically braced frames are three most common seismic force resisting systems used in framed structure. These frames are comparatively effective as lateral force resisting system which is developed to resist seismic actions in a conventional manner. Appropriately detailed and designed seismic lateral force resisting frames behave in a ductile manner by the means of shear or flexural. This ductile yielding gives wide, excellent energy dissipation, balanced hysteresis loops, which is necessary for major lateral forces. This report shows the assessment of the behaviour of Moment resisting frames, concentrically braced frames & eccentrically braced frames and also describes their seismic response to different seismic conditions & parameters so that optimum weight of structure between these three for same seismic conditions can be determined.