TY - GEN
T1 - Gusseted rafter-to-column connections of double-bay single channel portal frames
AU - Tshuma, B.
AU - Dundu, M.
N1 - Publisher Copyright:
© 2016 Taylor & Francis Group, London.
PY - 2016
Y1 - 2016
N2 - Double-bay portal frames have several advantages over two single portal frames positioned adjacent to each other, however the connecting system can be a challenge, especially if the portal frame is formed from single cold-formed channels. The portal frames described in this paper consists of a column and two rafter members, formed from single cold-formed channels sections, and bolted back-to-back at the eaves joint through a gusset plate. Tests were performed to evaluate the structural performance of the eaves region of double-bay portal frames. The eaves region represents the distance from the point of maximum moment (eaves joint) to the point of zero moment (contraflexure) in the rafters and columns respectively. The structures failed by local buckling in the compression flange and web of the rafters, outside the joints. The moment-curvature graphs proved that plasticity could not be achieved in these connections.
AB - Double-bay portal frames have several advantages over two single portal frames positioned adjacent to each other, however the connecting system can be a challenge, especially if the portal frame is formed from single cold-formed channels. The portal frames described in this paper consists of a column and two rafter members, formed from single cold-formed channels sections, and bolted back-to-back at the eaves joint through a gusset plate. Tests were performed to evaluate the structural performance of the eaves region of double-bay portal frames. The eaves region represents the distance from the point of maximum moment (eaves joint) to the point of zero moment (contraflexure) in the rafters and columns respectively. The structures failed by local buckling in the compression flange and web of the rafters, outside the joints. The moment-curvature graphs proved that plasticity could not be achieved in these connections.
UR - http://www.scopus.com/inward/record.url?scp=85013083646&partnerID=8YFLogxK
U2 - 10.1201/9781315641645-179
DO - 10.1201/9781315641645-179
M3 - Conference contribution
AN - SCOPUS:85013083646
SN - 9781138029279
T3 - Insights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
SP - 1087
EP - 1092
BT - Insights and Innovations in Structural Engineering, Mechanics and Computation - Proceedings of the 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
A2 - Zingoni, Alphose
PB - CRC Press/Balkema
T2 - 6th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2016
Y2 - 5 September 2016 through 7 September 2016
ER -