Asaad Samani, Arezoo, Hoseini Vaez, Seyed Rohollah. (1404). Fire Resistance and Collapse Mechanisms of 2D Steel Moment Frames: A Numerical Study. هنرهای کاربردی, 14(1), -. doi: 10.22075/jrce.2025.36843.2269
Arezoo Asaad Samani; Seyed Rohollah Hoseini Vaez. "Fire Resistance and Collapse Mechanisms of 2D Steel Moment Frames: A Numerical Study". هنرهای کاربردی, 14, 1, 1404, -. doi: 10.22075/jrce.2025.36843.2269
Asaad Samani, Arezoo, Hoseini Vaez, Seyed Rohollah. (1404). 'Fire Resistance and Collapse Mechanisms of 2D Steel Moment Frames: A Numerical Study', هنرهای کاربردی, 14(1), pp. -. doi: 10.22075/jrce.2025.36843.2269
Asaad Samani, Arezoo, Hoseini Vaez, Seyed Rohollah. Fire Resistance and Collapse Mechanisms of 2D Steel Moment Frames: A Numerical Study. هنرهای کاربردی, 1404; 14(1): -. doi: 10.22075/jrce.2025.36843.2269

Fire Resistance and Collapse Mechanisms of 2D Steel Moment Frames: A Numerical Study

Journal of Rehabilitation in Civil Engineering
مقاله 21، دوره 14، شماره 1 - شماره پیاپی 41، بهار 2026    اصل مقاله (3.77 M)
نوع مقاله: Regular Paper
شناسه دیجیتال (DOI): 10.22075/jrce.2025.36843.2269
نویسندگان
Arezoo Asaad Samani1؛ Seyed Rohollah Hoseini Vaez* 2
1Ph.D. Candidate, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran
2Professor, Department of Civil Engineering, Faculty of Engineering, University of Qom, Qom, Iran
چکیده
This study investigates the behavior of steel moment-resisting frames under fire conditions, focusing on the structural response of three- and nine-story frames exposed to high temperatures. The analysis evaluates the effects of elevated temperatures on deflections, internal forces, and inter-story drifts. Various fire scenarios are considered, with a fire duration of 120 minutes and a maximum temperature of 1050°C. The results reveal significant inter-story drifts, deflections in mid span of beams and substantial changes in internal forces of beams and columns. The columns are highly susceptible to buckling due to thermal expansion and reduced material properties. The results highlight the importance of focusing on columns and lower-to-mid-level stories in fire safety evaluations, as these components are more prone to failure and can significantly influence the overall structural stability. The strengths of this study lie in its thorough analysis of multiple fire scenarios and its precise identification of critical failure points, offering a robust foundation for advancing fire-resistant design methodologies. These findings have significant practical implications, as they provide engineers with valuable insights for enhancing the safety and performance of steel moment-resisting frames under fire conditions.

تازه های تحقیق
  • Critical fire scenarios for steel frames were identified.
  • Collapse Mechanisms of Steel Moment Frames were investigated.
  • Excessive beam deflections rates due to fire were calculated and compared.
کلیدواژه‌ها
Fire scenarios؛ Fire resistance؛ Collapse mechanisms؛ Steel moment frames
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