Seismic Performance Evaluation of Multi-Storey RCC Buildings with Shear Walls Using ETABS

This study investigates the seismic performance of multi-storey reinforced concrete (RC) buildings integrated with RC shear walls, using ETABS software for structural modelling and dynamic analysis. Building models with G+3, G+13, and G+23 storeys were analysed in accordance with IS 1893:2016 provisions, representing seismic conditions of Zone V. The research examines the effect of shear wall placement on key seismic response parameters, including storey drift, base shear, fundamental time period, and hinge formation. The analytical results demonstrate that incorporating shear walls markedly increases lateral stiffness, decreases displacement, and enhances overall structural stability. The location of shear walls, whether at the corners, core, or along the periphery, significantly influences torsional response and helps achieve Immediate Occupancy (IO) performance levels. The findings confirm that shear walls provide substantial seismic resistance for low, mid, and high-rise structures compared to bare frame systems. This work offers a practical framework for designing earthquake-resilient RC buildings and guides retrofitting measures for structures in high-seismic regions.

Shear walls; Seismic performance; Storey drift; Base shear; Fundamental time period; Lateral stiffness; Torsional response; Seismic Zone V; Earthquake-resistant design; Structural stability;

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