Concrete filled steel tubes are generally used in Beams, Columns, Piers and caissons for deep foundations. The steel
tube functions as the formwork for casting the concrete and hence, construction cost is reduced. The prime focus of the present
work is to study the behavior of RCC structure under the effect of seismic loads provided with composite columns. This research
study comprises of seismic analysis with the design of rigid frame with Reinforced Concrete column, Concrete encased steel and
steel tube encasing concrete columns. These cases are designed based on IS 1893:2016 using ETABS software. The result shows
that steel encased concrete is performing better than conventional column. The construction practices is the only difficulty arises
in such of composite column.
