TY - GEN
T1 - Numerical modeling for connections of staggered single channel rafters in double-bay cold-formed steel portal frames
AU - Kafuko, J.
AU - Dundu, M.
N1 - Publisher Copyright:
© 2022 the Author(s).
PY - 2023
Y1 - 2023
N2 - Previous work on double-bay cold-formed steel portal frames has shown that it is possible to have internal eaves connection with staggered single channel cold-formed rafters. The rafters and the column are bolted back-to-back at the eaves joint so as to counterbalance the forces in the connected elements. Experiments have shown that sufficient ductility to generate enough plastic rotation at the joint is not achieved. To understand the elastic and inelastic behaviour of this connection, a numerical model is introduced in this study. This numerical model, which has been tested against previous experimental data, gives good agreement with regards to mode and location of the failure, moment-rotation and moment-curvature response of the tested frame. This model facilitates a better understanding of the behaviour of this connection configuration, which will probably result in a wider application of cold-formed steel portal frames.
AB - Previous work on double-bay cold-formed steel portal frames has shown that it is possible to have internal eaves connection with staggered single channel cold-formed rafters. The rafters and the column are bolted back-to-back at the eaves joint so as to counterbalance the forces in the connected elements. Experiments have shown that sufficient ductility to generate enough plastic rotation at the joint is not achieved. To understand the elastic and inelastic behaviour of this connection, a numerical model is introduced in this study. This numerical model, which has been tested against previous experimental data, gives good agreement with regards to mode and location of the failure, moment-rotation and moment-curvature response of the tested frame. This model facilitates a better understanding of the behaviour of this connection configuration, which will probably result in a wider application of cold-formed steel portal frames.
UR - http://www.scopus.com/inward/record.url?scp=85145576254&partnerID=8YFLogxK
U2 - 10.1201/9781003348443-178
DO - 10.1201/9781003348443-178
M3 - Conference contribution
AN - SCOPUS:85145576254
SN - 9781003348443
T3 - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
SP - 1091
EP - 1096
BT - Current Perspectives and New Directions in Mechanics, Modelling and Design of Structural Systems - Proceedings of the 8th International Conference on Structural Engineering, Mechanics and Computation, 2022
A2 - Zingoni, Alphose
PB - CRC Press/Balkema
T2 - 8th International Conference on Structural Engineering, Mechanics and Computation, SEMC 2022
Y2 - 5 September 2022 through 7 September 2022
ER -