Seismic Analysis of High-Rise Structure Considering the Effect of Floating Columns

Abstract

In recent times, many buildings are planned and constructed with architectural complexities. The complexities include various types of irregularities like floating columns at various level and locations. These floating columns are highly disadvantageous in building built in seismically active areas. The earthquake forces that are developed at different floor levels in building need to be carried down along the height to ground by shortest path, but due to floating column there is discontinuity in the load transfer path which results in poor performance of building. In this current study structure is analyzed by using Response Spectrum Analysis by assuming that as the structure shall be exposed to different zones [zone lll, zone v]. The analysis is finished using ETABS software. This present work is to verify the safety of the structure with the existence of floating column after being built in areas where seismic action is very high. Comparison of various parameters such as base shear, inter storey drift and storey displacement is done.