Comparision Of Buildings With And Without Floating Columns By Using Staad Pro

Abstract

In present scenario buildings with floating column is a typical feature in the modern multistory Construction in urban India. Those characteristics are highly not suitable for buildings which were constructed in earthquake active zones. In this theses the analysis of building in the presence of floating column explicitly recognized in this involving stiffness balance of the first storey and alternative measurements are proposed to reduce the irregularity introduced by floating column. Floating columns are a typical feature in the modern multi-storied construction in urban India and are highly undesirable in buildings built in seismically active areas. This theses examines the effects of the structural irregularity which is produced by the discontinuity of a column in a building effected to earthquake loads. In this paper static analysis and dynamic analysis using response spectrum method is done for a multi-storied building with and without floating columns. By varying of locations the different cases of building of floating column floor wise and within the floor. The structural response of the building models with respect to Fundamental time period, Spectral acceleration, Base shear, Storey drift and Storey displacements is investigated. The analysis is carried out using software STAAD Pro V8i software. The frames with and without floating column the response of the structure under various seismic excitation having various frequency contents keeping the time duration factor and PGA constant are developed by FEM codes are 2D multi storey frames. The time history of floor Displacement, inter storey drift, base shear, overturning moment are computed for both the frames with and without floating column.