Abstract: Columns rest on the beam without foundation are called floating column.They are used commonly in multi-storey buildings which are purposed to hold parking at ground floor or open halls at higher floors. Discontinuation within the load transfer path is seen in this column. Thus, they are designed for gravity loads. But these structures aren’t designed for earthquake loads. In present scenario structures with floating column may be a common characteristic in urban India. However, in tectonic areas, this type of structure is not preferred due to discontinuity of load transfer path i.e. whole earthquake load on the structure is shared by the shear walls without any loads on the floating columns. This paper reviews the nature of a multi-storey building under quake forces with and without of floating columns. This analysis focusses the importance of specially identifying the presence of the floating column within the study of the structure, establish its correlation with the building without a floating column using designing software Extended three-dimensional analysis of building systems (ETABS). This paper also discusses the performance of structure having floating column in seismically active areas. Besides this various parameter such as maximum displacement, effect on number of storeys on drift, base shear is also studied.

Keywords: Floating columns, Equivalent static analysis, Storey displacement, Storey drift, Base shear, Etabs

Downloads: | DOI: 10.17148/IARJSET.2025.1211050