Akademik Veri Yönetim Sistemi
STRUCTURES, cilt.82, 2025 (SCI-Expanded, Scopus)
The seismic resilience of residential and commercial buildings is of great importance, and the use of prefabricated structural systems in such buildings requires reliable and efficient connection detail. In this study, the seismic performance of a moment-resisting hybrid beam-to-column connection, incorporating high-strength posttensioning bolts and mild steel reinforcement ratio was investigated analytically. The aim is to evaluate the effects of the mild steel reinforcement ratio and the initial post-tensioning force on the overall behavior of the connection and their contribution to structural resilience. Five different mild steel reinforcement ratios, contributing between 10 % and 50 % to the moment capacity of the connection, and two levels of initial posttensioning force, corresponding to 20 % and 40 % of the ultimate strength of the bolts, were examined. A total of eleven specimens, including a monolithic reference model, were analyzed using the OpenSeesPy. The seismic response was evaluated in terms of load carrying capacity, stiffness degradation, energy dissipation, and residual displacements. The results showed that increasing the mild steel ratio led to connection response more similar to that of the monolithic model, with higher initial stiffness and improved energy dissipation. Residual displacements decreased with higher post-tensioning forces, particularly in specimens with lower reinforcement ratios, confirming the self-centering capability of the proposed hybrid connection.