Volume 15, Issue 3 (8-2025)
IJOCE 2025, 15(3): 469-484 |
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Asaad Samani A, Hoseini Vaez S R, Hosseini P. OPTIMAL DESIGN OF UNPROTECTED STEEL MOMENT FRAMES UNDER FIRE CONDITION. IJOCE 2025; 15 (3) :469-484
URL: http://ijoce.iust.ac.ir/article-1-650-en.html
URL: http://ijoce.iust.ac.ir/article-1-650-en.html
1- Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran
2- Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, Iran
2- Faculty of Engineering, Mahallat Institute of Higher Education, Mahallat, Iran
Abstract: (925 Views)
This study addresses the critical necessity for optimized structural design under fire conditions, where conventional methods often prove inadequate. The research focuses on the optimal design of two three and nine story steel moment-resisting frames, without fireproofing protection. The optimization objectives were to minimize the structural weight while satisfying constraints under critical fire scenarios. The key design constraints included inter-story drift and the demand-to-capacity ratio of structural members. The study employed the Enhanced Vibrating Particles System (EVPS) and the Accelerated Water Evaporation Optimization (AWEO) algorithms. A significant aspect of the investigation involved analyzing various severe fire scenarios to identify which parts of the structures are most vulnerable during a fire event. The results demonstrate the effectiveness of the proposed optimization framework in achieving a lightweight yet resilient structural design that meets regulations under extreme thermal loading.
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