Performance Evaluation of Innovative Hybrid Energy Dissipation Systems for Enhanced Seismic Resilience in High-Rise Structures

Abstract

Seismic safety in high-rise buildings is a critical challenge due to their inherent structural vulnerabilities, including flexibility, longer natural periods, and amplified dynamic response. Conventional damping systems, while effective in specific scenarios, often fail to provide comprehensive energy dissipation under varying ground motion characteristics. To address this, the present study evaluates the effectiveness of hybrid energy dissipation devices—specifically, combinations of viscous dampers (VD), friction dampers (FD), and metallic yielding dampers (MYD)—integrated into a 50-story high-rise building model. Using advanced nonlinear time-history analysis in ETABS, the structural performance was assessed under a suite of real and synthetic ground motions. Evaluation metrics included inter-story drift, base shear, peak floor acceleration, and total energy dissipation. The hybrid configurations demonstrated significant enhancements over traditional single-damper systems, with the VD+MYD system offering the best performance in terms of drift reduction (up to 37%), base shear minimization (up to 30%), and peak acceleration control (up to 39%). Experimental correlations from existing shake table tests and component-level studies further validated the analytical model. The findings underscore the practical and theoretical significance of hybrid damping strategies in modern seismic design, offering robust and adaptable solutions for enhanced structural resilience. The study contributes to performance-based earthquake engineering by providing design insights for optimal damper selection and placement in tall buildings.