Published Online:April 2025
Product Name:The IUP Journal of Structural Engineering
Product Type:Article
Product Code:IJSE050425
DOI:10.71329/IUPJSE/2025.18.2.64-83
Author Name:Md Rafiur Rahman and Md Mohiuddin Mamun and Jenia Shultana
Availability:YES
Subject/Domain:Engineering
Download Format:PDF
Pages:64-83
The paper presents a structural analysis of a 15-story 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 story shear, bending moments (BM), 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.
The structural integrity and seismic resilience of multistory reinforced concrete (RCC) framed buildings are significantly influenced by their plan configurations. Variations in building shapes, such as rectangular, L, C, I and hexagonal plans, can substantially affect load distribution and overall structural performance during seismic events.