Effect of beam-column connection fixity and gravity framing on the seismic collapse risk of special concentrically braced frames
| dc.contributor.author | Mohsenzadeh, Vahid | |
| dc.contributor.author | Wiebe, Lydell | |
| dc.contributor.department | Civil Engineering | en_US |
| dc.date.accessioned | 2020-01-15T18:06:04Z | |
| dc.date.available | 2020-01-15T18:06:04Z | |
| dc.date.issued | 2018 | |
| dc.description.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. | en_US |
| dc.identifier | 10.1016/j.soildyn.2018.09.035 | |
| dc.identifier.issn | 10.1016/j.soildyn.2018.09.035 | |
| dc.identifier.uri | http://hdl.handle.net/11375/25182 | |
| dc.publisher | Elsevier | en_US |
| dc.title | Effect of beam-column connection fixity and gravity framing on the seismic collapse risk of special concentrically braced frames | en_US |
| dc.type | Postprint | en_US |