Evolutionary Strategy for Performance-Based Seismic Design of High-Rise Structures: Novel Methodologie and Efficiency Analysis

The practice of Performance-Based Seismic Design (PBSD) is integral to enhancing the safety and sustainability of high-rise structures. As seismic events pose significant risks, employing innovative and sustainable strategies in PBSD is crucial for optimizing building resilience. This study proposes cutting-edge methodologies that streamline the preliminary design phase and introduce optimization techniques to refine structural performance. Advanced tools like Perform-3D and ETABS are employed for nonlinear time history analysis, which assesses how initial designs measure up to ultimate safety and performance standards during severe earthquakes. The research examines three critical performance levels-Immediate Occupancy (IO), Life Safety (LS), and Collapse Prevention (CP)-and demonstrates a marked improvement in structural responses with the implementation of the ladder system as compared to the traditional outrigger system, reducing lateral displacement by 37.29% and base shear by 15%. These promising results emphasize the need for an efficient initial design and advocate for further research to broaden the application and enhance the efficacy of these innovative PBSD methodologies.