Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/21106
Title: Structural behaviour of bolted moment connections in cold-formed steel beam-column sub-frames
Authors: Wong, MF
Chung, KF 
Keywords: Bolted moment connections
Column base connection test
Failure modes
Issue Date: 2002
Publisher: Elsevier
Source: Journal of constructional steel research, 2002, v. 58, no. 2, p. 253-274 How to cite?
Journal: Journal of constructional steel research 
Abstract: This paper presents an experimental investigation on bolted moment connections between cold-formed steel sections. A total of 20 column base connection tests and beam-column sub-frame tests with different connection configurations were carried out to assess the strength and stiffness of bolted moment connections between cold-formed steel sections. Among the tests, four different modes of failure were identified: • Mode BFcsw: Bearing failure in section web around bolt hole • Mode LTBgp: Lateral torsional buckling of gusset plate • Mode FFgp: Flexural failure of gusset plate • Mode FFcs: Flexural failure of connected cold-formed steel section For those connections failed in Mode BFcsw, the moment resistances of the connections were typically found to be below 50% of the moment capacities of the connected sections. For those connections failed in Modes LTBgp and FFgp, the moment resistances of the connections were found to be about 60% and 75% of the moment capacities of the connected sections. Among all, the moment resistances of those connections failed in Mode FFcs were the highest with a minimum of 85% of the moment capacities of the connected sections. Consequently, it is demonstrated that through rational design and construction, effective moment connections between cold-formed steel sections may be readily achieved. Engineers are encouraged to build light-weight low to medium rise moment frames with cold-formed steel sections.
URI: http://hdl.handle.net/10397/21106
ISSN: 0143-974X
EISSN: 1873-5983
DOI: 10.1016/S0143-974X(01)00044-X
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