Analysis of vertically irregular R.C structure using outrigger system

Abstract

Tall building construction is quickly rising across the world, posing new issues that must be addressed by engineering judgement. The rigidity of a structure decreases as it becomes taller. As a result, in the current analysis of work, an outrigger system is recommended to increase the performance of the structure under seismic loading. The current effort includes a comparison study of regular and irregular buildings with and without outriggers, as well as a centrally stiff shear wall and steel bracings as outriggers. The construction is modelled with the "ETABS" application. To avoid causing harm to the structures, the limitations should be kept to a minimum. The outrigger is one of the maximum effective systems for efficiently controlling excessive lateral drift owing to lateral load, so that the danger of structural and non-structural damage may be avoided under minor or medium lateral loads due to either wind or seismic stress. This technique may be used to construct high-rise buildings, especially in seismically active areas. This research investigates the effective usage of outrigger systems in regular and irregular buildings with and without outrigger systems when exposed to earth quake loads.