Seismic Analysis of G+9 Storey Building having Floating Column with Different locations of Shear Wall

Abstract

To provide the large parking space, banquet halls, conference rooms, showrooms and other amenities in residential and commercial building in urban cities, Floating Columns are used. Also, to give architectural view and functional requirement to building, concept of floating column is becoming popular. But in seismic active area, it is highly undesirable to build such type of buildings as compared to normal buildings. To provide additional stiffness and strength to building, shear walls are taken into consideration. In present work, G+ 9 storey building having floating column has been modeled using FE based software ETABS2016. This paper has studied the seismic role of Reinforced concrete G+9 storey building having floating column by conducting RSA i.e. Response Spectrum Analysis considering Seismic zone III for most suited position and location of shear wall. The first model includes building without shear wall whereas the other three models have been taken with shear wall at centre, corner and side of the building. And each of these models are modeled and analyzed for the structure having floating column at first floor and third floor of the building. The analysis results of structural response including maximum storey displacement, storey drift ratio and base shear for different models are plotted to compare and discuss. It has been found that G+9 storey building having floating column, shear wall at corner gives lowest value of maximum storey displacement and storey drift ratio for each case. On the basis of this analysis, most suited location of shear wall is at corner for floating column building.