The Effect of Local Fuse on Behavior of Concentrically Braced Frame by a Numerical Study
محل انتشار: ژورنال مهندسی عمران، دوره: 4، شماره: 3
سال انتشار: 1397
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 378
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شناسه ملی سند علمی:
JR_CEJ-4-3_017
تاریخ نمایه سازی: 6 آذر 1397
چکیده مقاله:
The concentrically braced frames (CBFs) are one of the most widely used lateral load-resisting systems. Seismicperformance of these structures has a weakness that is due to the brace buckling at a lower loading than the ultimatecompressive loading capacity. In this paper, attempt is made to enhance the seismic response of CBFs through utilizing alocal fuse. For this purpose, first the formulation of fuse area and length are presented. Then based on this formulation,several numerical models have been built and analyzed to examine the effect of implementing this fuse on seismic responseof CBFs. From the analyses results, it is found that if the reduced cross-section fuse (RCF) is properly designed and alsothe end of brace is fixed, the CBFs with equal energy dissipation capacity, that are equipped with this fuse exhibit a betterductility than the customary CBFs.
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نویسندگان
Ali Kachooee
Ph.D Student, Faculty of Civil Engineering, Semnan University, Semnan, Iran
Mohammad Ali Kafi
Associate professor, Faculty of Civil Engineering, Semnan University, Semnan, Iran
Mohsen Gerami
Associate professor, Faculty of Civil Engineering, Semnan University, Semnan, Iran