Authors: Vivek Choudhary, Rahul Kumar Satbhaiya
Abstract: The growing demand for resilient high-rise structures in seismic-prone regions has led to the widespread adoption of seismic isolation and bracing systems. This review paper presents a comprehensive evaluation of the structural performance of tall buildings equipped with bracing and base isolation techniques, focusing on their seismic response. Emphasis is placed on research conducted using ETABS software, which provides advanced modeling and analysis tools for evaluating high-rise buildings under seismic loads. Key parameters such as story drift, base shear, lateral displacement, and floor acceleration are examined in the context of various isolation and bracing configurations. The review integrates findings from multiple studies, highlighting the effectiveness of lead-rubber bearings, friction pendulum systems, and bracing systems (X, V, and Z-bracing) in enhancing the lateral stability and energy dissipation capacity of structures. Comparative analyses demonstrate that the combination of base isolation and bracing significantly improves performance compared to conventional fixed-base models. Moreover, the role of soil-structure interaction and building geometry is also discussed to understand their influence on the overall response. This paper concludes that selecting an appropriate seismic control system based on building height, seismic zone, and soil type is critical for optimizing performance. The findings support the continued use of ETABS as a powerful tool for analyzing and designing seismically resistant tall buildings. This review aims to guide engineers, researchers, and designers in selecting efficient seismic mitigation strategies for modern structural systems.
