TY - JOUR
T1 - Experiments on cold-formed steel moment-resisting connections with bolting friction-slip mechanism
AU - Bagheri Sabbagh, Alireza
AU - Shahini, Marzie Farnaz
AU - Davidson, Paul
AU - Mirghaderi, Seyed Rasoul
AU - Torabian, Shahabeddin
N1 - Acknowledgement
The tests reported herein were conducted at the Structures Laboratory of Building and Housing Research Centre of Iran with technical support from Iran Tohid Co. which are much appreciated. The first author is grateful to the Elphinstone PhD Scholarship provided by the University of Aberdeen.
PY - 2022/9/22
Y1 - 2022/9/22
N2 - This paper presents an experimental investigation into the cyclic behaviour of cold-formed steel (CFS) moment-resisting (MR) beam-to-column connections utilising a friction-slip mechanism within a web-bolted connection arrangement. The bolting slip back and forth movements are accommodated through slotted holes to dissipate seismic energy within the CFS MR connections. Nine full-scale experiments were conducted on connections with and without slip for comparison purposes. The slip connections were designed to undergo slip prior to the initiation of local buckling in the CFS beam. This avoids premature local buckling, which could significantly degrade strength, particularly for connections with lower thickness beams. The slip connections, as a result, produce a greater energy dissipation capacity and ductility factor by up to 79% and 2.5 times, respectively, than that of the corresponding slip-resistant connections.
AB - This paper presents an experimental investigation into the cyclic behaviour of cold-formed steel (CFS) moment-resisting (MR) beam-to-column connections utilising a friction-slip mechanism within a web-bolted connection arrangement. The bolting slip back and forth movements are accommodated through slotted holes to dissipate seismic energy within the CFS MR connections. Nine full-scale experiments were conducted on connections with and without slip for comparison purposes. The slip connections were designed to undergo slip prior to the initiation of local buckling in the CFS beam. This avoids premature local buckling, which could significantly degrade strength, particularly for connections with lower thickness beams. The slip connections, as a result, produce a greater energy dissipation capacity and ductility factor by up to 79% and 2.5 times, respectively, than that of the corresponding slip-resistant connections.
KW - Cold-formed steel
KW - Bolting friction-slip mechanism
KW - Seismic energy dissipation
KW - Moment-resisting connections
UR - https://www.sciencedirect.com/science/article/pii/S0143974X22002401?via%3Dihub
U2 - 10.1016/j.jcsr.2022.107368
DO - 10.1016/j.jcsr.2022.107368
M3 - Article
VL - 196
JO - Journal of Constructional Steel Research
JF - Journal of Constructional Steel Research
SN - 0143-974X
M1 - 107368
ER -