Akademik Veri Yönetim Sistemi
Structures, cilt.79, 2025 (SCI-Expanded)
In this study, the optimal weight design of high-rise steel frame structures with outrigger systems, considering soil-structure interaction, is performed using numerical optimization techniques. The investigation focuses on both the outrigger system members and the effect of soil-structure interaction on structural performance to determine the most effective design solutions. As case studies, irregular steel frame models consisting of 17 storeys (834 elements), 24 storeys (3008 elements), and 30 storeys (2266 elements) are selected. These models represent original structural optimization problems that are not previously studied in the literature. The optimal solutions are obtained using a MATLAB-based computational framework that allows bidirectional data exchange with SAP2000 via the Open Application Programming Interface (OAPI). The structural design constraints are formulated based on the AISC-LRFD specifications, and the optimization problem is treated as a discrete-variable optimization problem due to the predefined selection pool of steel sections. Three different metaheuristic algorithms are used to solve this problem: the Honey Badger Algorithm (HBA), the Aquila Optimizer (AO), and the Grey Wolf Optimizer (GWO). Notably, HBA and AO are applied to steel frame design problems for the first time, highlighting the novelty of this study. The results indicate that outrigger systems configurations and soil-structure interaction play a critical role in the optimal design of steel space frames. Moreover, the results show that the proposed optimization techniques are highly suitable for practical engineering applications, providing efficient and structurally sound design solutions.