Please use this identifier to cite or link to this item:
http://hdl.handle.net/11375/25182
Title: | Effect of beam-column connection fixity and gravity framing on the seismic collapse risk of special concentrically braced frames |
Authors: | Mohsenzadeh, Vahid Wiebe, Lydell |
Department: | Civil Engineering |
Publication Date: | 2018 |
Publisher: | Elsevier |
Abstract: | In concentrically braced frames (CBFs), braces are typically connected at beam-column connections through gusset plates, which also increase the rotational stiffness and moment capacity of the beam-column connection. This fixity provides a reserve lateral force resisting capacity that may improve the seismic collapse capacity of the system, but that is not considered in design. Recently, a new brace connection type has been proposed that does not include a gusset plate that would stiffen and strengthen the beam-column connection. To address the implications of the range of possible connection design alternatives, this paper assesses the effects of the fixity of beam-column connections on the behaviour of three special concentrically braced frames of different heights. The results show that flexural strength and stiffness at the beam-column connections reduces the collapse probability when the gravity framing contribution is ignored, but this influence is minor for low-rise buildings and is typically much less significant than the influence of the gravity framing's stiffness and strength. Simple design recommendations are presented regarding the beam-column connection fixity within the braced bay. |
URI: | http://hdl.handle.net/11375/25182 |
ISSN: | 10.1016/j.soildyn.2018.09.035 |
Other Identifiers: | 10.1016/j.soildyn.2018.09.035 |
Appears in Collections: | Faculty Publications |
Files in This Item:
File | Description | Size | Format | |
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Mohsenzadeh Wiebe 2018 AM with Cover.pdf | 2.48 MB | Adobe PDF | View/Open |
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