Structural Analysis of a Multi-Storeyed Building using ETABS for Different Plan Configurations Including a Hexagonal Plan

This study presents a structural analysis of a 15-storey RCC framed building with different plan configurations, including Rectangular, L-shape, I-shape, C-shape, and an additional hexagonal plan. Using ETABS, the study evaluates key structural parameters such as storey shear, bending moments, lateral displacement, and overturning moments under different loading conditions. The analysis follows IS-875 and IS-1893 (2002) standards to ensure accurate assessment of seismic and gravity loads. The results indicate that the rectangular configuration provides the best structural stability, while irregular shapes such as L and C configurations exhibit higher lateral displacements and reduced shear resistance. The Hexagonal plan, introduced as a new alternative, demonstrates balanced performance with improved load distribution and moderate seismic resistance. The findings suggest that symmetrical designs like the rectangular and hexagonal configurations offer better structural efficiency, making them suitable choices for earthquake-prone regions. Further research can refine the hexagonal plan to optimize its load-bearing capacity and material efficiency.