LINEAR ANALYSIS OF REINFORCED CONCRETE FRAME BUILDING HAVING MASS IRREGULARITY WITH AND WITHOUT SHEAR WALL UNDER SIESMIC EFFECT

Abstract

The report comes up with the procedure for seismic analysis of vertically irregular reinforced concrete
frame structures using linear static and dynamic methods. Various reinforced concrete structures in metropolitan
regions lying in active seismic zone may undergo moderate to severe damages during potential ground movements.
Therefore it is essential to minimize offensive risks to property and life.
The irregularities in a structures is mainly due allocation of lumped mass in a storey and by stiffing the
storey all over the altitude of the structure. These changes make the structure irregular in plan or irregular in its
elevation. Hence the engineers have being investigating the various asymmetrical plan structure to come up with perfect
and accurate designs so that structure be safe or get less effected by seismic wave or earthquake.
In this project a fifteen storey model is prepared with vertical mass irregularity using ETABS software. To
know the influence of shear walls at the corners of the structures during cause of seismic waves using linear static
analysis. The displacements, storey drifts, storey force for each storey and base shear for different models is being
compared by analyzing the models with linear static and linear dynamic analysis.