Dynamic Analysis of A Circular Tall Structure Considering Outriggers Using ETABS

As the demand for unique structural solutions such as core and outrigger structural systems grows in today's modern world, it necessitates unique structural solutions such as core and outrigger structural systems. This system is constructed in such a way that greater forces are drawn to the building's centre core and less forces are carried by the building's periphery. This approach was also used for a building of medium height, in addition to tall structures. The goal of this study is to look at the seismic variation in circular buildings by placing the Outrigger system at the inner wall in the reinforced concrete structure. In this study, there are two models: one is a traditional circular building, and the other is a building with an outrigger system built into the inner wall. Dynamic analysis and rotational seismic analysis are the methods used to analyse these models, and Etabs is the software used to do so. I.S. (Indian Standard) 1893 part-1: 2016 was the code used for this dynamic study. After assessing all models, the models are compared on the seismic parameter values (lateral storey force, storey displacement, periods and frequency, storey stiffness) for each model to see which model is the most stable.