Evaluating the effect of Buckling-Restrained Braces in Steel Buildings against Progressive failure using Different Simulation Strategies
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-34-10_006
تاریخ نمایه سازی: 12 مرداد 1400
Abstract:
Ignoring the primary damage to structural components due to blast load or fire is the alternate load path (APM) method's weakness in progressive failure analysis. The new technique used in this study examines the structure's more realistic responses by considering the initial cause of the failure. Also, buckling-restrained braces (BRBs) are applied to diminish the potential for progressive failure in braced steel buildings. Variables include the type of primary local loading (APM, blast loading, and heat caused by fire), the position of column removal in the plan (inner and outer frame), the type of brace (BRB and CB), and the number of stories (۳, ۵, and ۸ stories). The buildings were simulated using ABAQUS. The results showed that BRBs in steel buildings under blast load, compared to conventional braces, reduce the potential of progressive failure. The use of BRBs provides much more energy absorption than conventional bracing systems due to brace buckling prevention.
Keywords:
Alternative Load Path Method , Buckling-restrained brace , Finite element method , progressive failure
Authors
Babak Pordel Maragheh
Ph.D. Candidate, Department of Civil Engineering, Arak Branch, Islamic Azad University, Arak, Iran.
Abdolrahim Jalali
Department of Civil Engineering, Faculty of Engineering, University of Kyrenia, Girne, Mersin ۱۰, Turkey.
S.Mohammad Mirhosseini
Department of Civil Engineering, Arak branch, Islamic Azad University, Arak, Iran.
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