International Journal of Nonlinear Analysis and Applications

Optimal Design of Eccentric Braced Frames using IJAYA algorithm

Articles in Press

Document Type : Research Paper

Authors

Department of Civil Engineering, Khor. C., Islamic Azad University, Khorramabad, Iran

Abstract

Optimum design of structures is one of the important design goals because it improves the structural and architectural features and reduces the cost of building the structure. In most of the research, the weight of the structure has been considered as a function of the cross-sectional area of the members and the location of the braces in the braced frames, which should be according to the rules and regulations of the case. Follow the designer's opinion. In order to optimize steel frames, many researchers use meta-heuristic algorithms; each of these algorithms, with its own mechanisms, has optimized the objective function in steel frames (weight). In this paper eccentric braced frame (EBF) is the chosen system for weight optimization. The most common method of modelling the link beam is almost ineffective for evaluating its performance according to FEMA 356. For this reason, in this study, a method was first presented for the modelling of the link beam, based on which it is possible to evaluate the performance of the link beam. Then the optimization problem was defined based on the acceptance criteria of the performance-based design method. In order to measure the possibility of optimization based on the defined problem, the optimal design of two EBFs was discussed using an improved JAYA (IJAYA) meta-heuristic algorithm and the results of their optimization were presented. Results show better performance of the IJAYA algorithm optimization relative to other algorithms.

Keywords

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International Journal of Nonlinear Analysis and Applications

Articles in Press, Corrected Proof
Available Online from 27 January 2026
  • Receive Date: 06 October 2025
  • Revise Date: 06 December 2025
  • Accept Date: 24 December 2025