International Journal of Scientific Research and Engineering Development

This paper presents a comparative seismic analysis of a G+11 reinforced concrete (RC) multistoried building named “Sankalp Bhavan” located in two different seismic zones of India — Zone II Bhopal (low seismic risk) and Zone V Bhuj (very high seismic risk) as per IS 1893 (Part 1):2016. The study aims to understand the variation in structural behavior, including base shear, story drift, lateral displacement, and modal characteristics under different seismic intensities. The analysis is performed using ETABS 2022 software through both Equivalent Static Method and Response Spectrum Method. The comparative results show a significant increase in lateral forces, storey displacement, and drift in Zone V compared to Zone II, highlighting the need for enhanced stiffness, ductility, and proper detailing in high-seismic regions. The findings emphasize the importance of site-specific seismic zoning in safe and economical design of high-rise structures.