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Paper Information

Journal:   AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR)   2017 , Volume 49 , Number 2 ; Page(s) 213 To 226.
 
Paper: 

EVALUATION OF DUCTILITY REDUCTION FACTOR FOR X-BRACED STEEL FRAMES WHICH ARE BRACED IN TWO END SPANS

 
 
Author(s):  ASGHARI A.*
 
* FACULTY OF CIVIL ENGINEERING, URMIA UNIVERSITY OF TECHNOLOGY, URMIA, IRAN
 
Abstract: 

In this study, the ductility reduction factor of Ordinary Concentrically Braced Frames (OCBFs) and special concentrically braced frames (SCBFs) which are braced concentrically in two end sides of frames, is evaluated. The results confirmed that, using SCBFs will reduce about 15 to 45 percent of total used material for one to 16 story frames respectively. In addition, for all of the 16 ordinary X-braced frames, which have 1 to 16 story height, calculated ductility reduction factor exceeds from ASCE7’s proposed one, except for 16 stories frame. For studied frames, which are braced in two end sides, using the X-bracing system, the results confirmed that ductility demand is achievable without any significant problem. In addition, results indicated that although the response modification factor which is proposed by Iranian seismic design code (2800 standard), is more logical than ASCE7’s one, for frames which are braced in the end sides, the response modification factor should be taken less than 5.5.

 
Keyword(s): DUCTILITY, DUCTILITY REDUCTION FACTOR, CONCENTRICALLY BRACED FRAME, PUSHOVER ANALYSIS, TARGET DISPLACEMENT
 
 
References: 
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Citations: 
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+ Click to Cite.
APA: Copy

ASGHARI, A. (2017). EVALUATION OF DUCTILITY REDUCTION FACTOR FOR X-BRACED STEEL FRAMES WHICH ARE BRACED IN TWO END SPANS. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), 49(2 ), 213-226. https://www.sid.ir/en/journal/ViewPaper.aspx?id=572678



Vancouver: Copy

ASGHARI A.. EVALUATION OF DUCTILITY REDUCTION FACTOR FOR X-BRACED STEEL FRAMES WHICH ARE BRACED IN TWO END SPANS. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR). 2017 [cited 2021July26];49(2 ):213-226. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572678



IEEE: Copy

ASGHARI, A., 2017. EVALUATION OF DUCTILITY REDUCTION FACTOR FOR X-BRACED STEEL FRAMES WHICH ARE BRACED IN TWO END SPANS. AMIRKABIR JOURNAL OF CIVIL ENGINEERING (AMIRKABIR), [online] 49(2 ), pp.213-226. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=572678.



 
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