A REVIEW ON PERFORMANCE EVALUATION OF RC MOMENT RESISTING IRREGULAR FRAMES USING NONLINEAR DYNAMIC ANALYSIS

Abstract

Engineering structures are very complex and difficult to analyze for their dynamic, or vibrational, behavior.
With the incidental loss of life and property witnessed in the last couple of decades alone in India, due to failure of
structures caused by earthquakes, now attention is given to neglect the adequacy of strength in RC framed structures to
resist strong ground motions. To determine structural response beyond yield point, out of two types of nonlinearity
material and geometrical, material nonlinearity is considered in present paper. As such, nonlinear analysis can play an
important role in the analysis and design of new and existing buildings.
In the present paper, RC Moment Resisting Irregular Frames (T Shape) of 5, 9,12 and 15 Story are analyzed for seismic
Zone III and designed as per IS code provisions, considering both seismic and gravity loads. Further, performance
evaluation of above frames is done using Non Linear Time History Analysis (NLTHA) in Seismostruct software.