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An Investigation into the Effect of Connections zone on the Seismic Behavior of All Steel Buckling Restrained Braces: Discussion on projection length

Credit to Download: 1 | Page Numbers 13 | Abstract Views: 92
Year: 2016
COI code: ISSS07_038
Paper Language: English

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Authors An Investigation into the Effect of Connections zone on the Seismic Behavior of All Steel Buckling Restrained Braces: Discussion on projection length

  Mohammad Amin Hodaei - Faculty of Civil engineering, Sahand University of Technology, Tabriz, Iran
  Behzad Rafezy - Faculty of Civil engineering, Sahand University of Technology, Tabriz, Iran
  Karim Abedi - Faculty of Civil engineering, Sahand University of Technology, Tabriz, Iran

Abstract:

Conventional buckling restrained braces used in concentrically braced frames are expected to yield in both tension and compression without significant degradation of capacity under severe seismic ground motions. However, the buckling of connection zone i.e. end connection and projection length (the length of the core that is out of the Buckling Restrain Mechanism (BRM)), may occur before the brace reaches its maximum capacity. This paper presents a finite element approach to investigate the effect of connection zone (projection zone) on the seismic behavior of all-steel buckling restrained braces (all-steel BRBs). Longer projection length allows the brace core to move easily through the casing but as the projection length increases, the buckling probability of the connection zone is increased, too. This might cause unexpected behavior, resulting in an incorrect prediction of their seismic behavior during the earthquakes. In this paper, it is aimed to conduct an analytical study of BRBs with different amounts of projection length in order to optimize the projection length depending on the critical parameters of all-steel BRBs.

Keywords:

BRBs, all-steel buckling restrained braces, projection length, end condition effects

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COI code: ISSS07_038

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Hodaei, Mohammad Amin; Behzad Rafezy & Karim Abedi, 2016, An Investigation into the Effect of Connections zone on the Seismic Behavior of All Steel Buckling Restrained Braces: Discussion on projection length, 2nd International Conference &7th National Conference of Steel Structure, تهران ,  انجمن سازه هاي فولادي ايران, https://www.civilica.com/Paper-ISSS07-ISSS07_038.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Hodaei, Mohammad Amin; Behzad Rafezy & Karim Abedi, 2016)
Second and more: (Hodaei; Rafezy & Abedi, 2016)
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Type: state university
Paper No.: 3227
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