A Parametric Study on Improved Reduced Beam Section Connections with Post-tensioning to Enhance Seismic Resilience

This study presents novel research on the seismic behavior of self-centering reduced beam section (RBS) connections in steel structures. Unlike traditional moment frames that concentrate non-elastic deformations energy dissipation devices, innovative RBS utilize post-tensioning techniques to restore structure its pre-earthquake condition. By significantly reducing residual deformations, these offer a promising alternative for improving resilience. To validate effectiveness post-tensioned (PT) and connections, advanced nonlinear numerical modeling using Finite Element Method (FEM) ABAQUS software is employed. approach allows comprehensive investigation, comparing results with laboratory data. Furthermore, goes beyond existing by incorporating additional high-strength cables into connections. configuration aims assess impact behavior, adding new dimension understanding Through rigorous parametric study, uncovers crucial insights performance Notably, reveals significant influence initial force various aspects, including stiffness, maximum capacity, gap-opening PT The findings demonstrate potential increasing enhance capacity overall Overall, this pioneering advances their application emphasizing aspects research, it contributes body knowledge field provides valuable resilience