Investigating the behavior Of Special Steel Concentrically Braced Frames exposed to fire

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KAFFASH M.R.; KARAMODIN A.

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Journal Paper

Paper Information

Journal: JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING Year:2021 | Volume:8 | Issue:3 Page(s): 177-190

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Title

Investigating the behavior Of Special Steel Concentrically Braced Frames exposed to fire

Author(s)

KAFFASH M.R. | KARAMODIN A. | Issue Writer Certificate

Keywords

FireQ1

Sequential analysisQ1

Fire resistanceQ1

braced framesQ1

Overall behaviorQ1

Abstract

Understanding the behavior of steel structures under Fire loading is very important because many recent events indicate the vulnerability of steel structures to such a hazard. Extensive numerical and experimental studies have been conducted to investigate the behavior of different types of structural steel elements individually, steel structure connection, and steel moment frames in Fire conditions. However, the response of concentrically braced frames in Fire conditions has not yet been investigated. This paper examines the global response and the local behavior of special steel concentrically braced frames under a series of uniform Fire scenarios considering the heating and cooling phases at different levels of floors by numerical analysis of finite element method. The analyzes results show that the buckling of the beams and braces is exposed to high temperatures due to the large compressive axial force due to lateral constraints to expansion. Also, the Fire resistance of the braced frames is affected by the position of the Fire. As with increasing gravity load at lower levels, the effect of P-Δ , which is an effective factor in the destruction of the structure, has increased and potentially risk the early destruction of the structure Increase. The results of analyzes can help engineers understand the local and global responses of steel bracing frames under Fire loading.

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APA: Copy

KAFFASH, M.R., & KARAMODIN, A.. (2021). Investigating the behavior Of Special Steel Concentrically Braced Frames exposed to fire. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, 8(3 ), 177-190. SID. https://sid.ir/paper/392841/en

Vancouver: Copy

KAFFASH M.R., KARAMODIN A.. Investigating the behavior Of Special Steel Concentrically Braced Frames exposed to fire. JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING[Internet]. 2021;8(3 ):177-190. Available from: https://sid.ir/paper/392841/en

IEEE: Copy

M.R. KAFFASH, and A. KARAMODIN, “Investigating the behavior Of Special Steel Concentrically Braced Frames exposed to fire,” JOURNAL OF STRUCTURAL AND CONSTRUCTION ENGINEERING, vol. 8, no. 3 , pp. 177–190, 2021, [Online]. Available: https://sid.ir/paper/392841/en

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