High-rise buildings are increasingly popular in urban centers due to space constraints and architectural demands. However, these tall structures are highly susceptible to lateral forces induced by wind and seismic activity. This study presents the structural design and analysis of a G+20 reinforced concrete (RC) high-rise building located in Zone IV as per IS 1893:2016. The analysis was carried out using ETABS 20 software, considering both wind and earthquake loading combinations. The study compares the structural behavior in terms of storey displacement, drift, base shear, and member forces under dynamic loading conditions. The results indicate that proper consideration of lateral loads and structural system optimization can significantly enhance performance and safety under seismic and wind effects.
The combined effect of seismic and wind loads plays a crucial role in the design of high-rise buildings.
Wind loads governed the design for top storeys, while seismic forces were dominant in lower regions.
The lateral displacement and storey drift are within permissible limits as per IS 1893:2016.
Shear walls or bracing systems can be effectively introduced for enhanced lateral stiffness.
ETABS provides an efficient platform for analyzing dynamic responses of high-rise structures.
References
1.IS 456:2000 – Plain and Reinforced Concrete – Code of Practice, BIS, New Delhi. 2.IS 875 (Part 1, 2 & 3):2015 – Code of Practice for Design Loads, BIS, New Delhi. 3.IS 1893 (Part 1):2016 – Criteria for Earthquake Resistant Design of Structures. 4.IS 13920:2016 – Ductile Detailing of Reinforced Concrete Structures. 5.Chopra, A.K. (2019). Dynamics of Structures: Theory and Applications to Earthquake Engineering. 6.Smith, B.S. & Coull, A. (1991). Tall Building Structures: Analysis and Design. John Wiley & Sons.