Structural Analysis Of G+15 Building with Vertical Irregularities Using ETABS

Abstract

Rapid urbanization and scarcity of land have led to the construction of high-rise buildings with complex architectural configurations. These configurations often ⁱmass, stiffness, and geometry, which significantly influence the seismic performance of structures. This research presents a detailed seismic analysis of a G+15 reinforced concrete (RCC) building with vertical irregularities using ETABS software. Regular and vertically irregular building models are developed and analyzed using the Response Specturm Method and Time History Method in accordance with IS 1893 (Part 1):2016 and IS 456:2000. Key response parameters such as base shear, storey drift, lateral displacement, shear force, and bending moment are evaluated. The results demonstrate that vertical irregularities lead to increased seismic demand and deformation, particularly near irregular zones. The study emphasizes the importance of careful structural configuration and advanced analysis to ensure seismic safety of high-rise buildings.