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A platform for research: civil engineering, architecture and urbanism
DSM for ultimate strength of bolted moment-connections between cold-formed steel channel members
https://orcid.org/0000-0003-0723-1699
Abstract Experimental tests have previously shown that the strength of bolted moment-connections between cold-formed steel channel members, where the connections are formed through an array of bolts in the web, is dependent on the length of the bolt-group. This reduced strength has been observed in tests on portal frame joints as well as overlapped purlin joints. For a long bolt-group length, an upper bound would be the full in-plane major axis moment-capacity of the section, which can be predicted using the conventional Direct Strength Method (DSM). For a short bolt-group length, in the order of the depth of the section, a reasonable lower bound to the reduced strength can be predicted by using the DSM, modified to include the effect of the bimoment at the connection. In this paper, a parametric study is performed covering sections of different values of slenderness.
Highlights Previous experimental tests have shown that the strength of web bolted moment resisting connections between cold-formed steel channel members is dependent on the length of the bolt group This reduced strength is observed in portal frame joints and overlapped purlin joints For a long bolt group length, the full in-plane major axis moment capacity of the section as predicted by the Direct Strength Method (DSM) can be developed For a short bolt group length, in order of the depth of the section, a reasonable lower bound can be predicted by DSM including the effect of the bimoment at the connection.
DSM for ultimate strength of bolted moment-connections between cold-formed steel channel members
https://orcid.org/0000-0003-0723-1699
Abstract Experimental tests have previously shown that the strength of bolted moment-connections between cold-formed steel channel members, where the connections are formed through an array of bolts in the web, is dependent on the length of the bolt-group. This reduced strength has been observed in tests on portal frame joints as well as overlapped purlin joints. For a long bolt-group length, an upper bound would be the full in-plane major axis moment-capacity of the section, which can be predicted using the conventional Direct Strength Method (DSM). For a short bolt-group length, in the order of the depth of the section, a reasonable lower bound to the reduced strength can be predicted by using the DSM, modified to include the effect of the bimoment at the connection. In this paper, a parametric study is performed covering sections of different values of slenderness.
Highlights Previous experimental tests have shown that the strength of web bolted moment resisting connections between cold-formed steel channel members is dependent on the length of the bolt group This reduced strength is observed in portal frame joints and overlapped purlin joints For a long bolt group length, the full in-plane major axis moment capacity of the section as predicted by the Direct Strength Method (DSM) can be developed For a short bolt group length, in order of the depth of the section, a reasonable lower bound can be predicted by DSM including the effect of the bimoment at the connection.
DSM for ultimate strength of bolted moment-connections between cold-formed steel channel members
https://orcid.org/0000-0003-0723-1699
Abstract Experimental tests have previously shown that the strength of bolted moment-connections between cold-formed steel channel members, where the connections are formed through an array of bolts in the web, is dependent on the length of the bolt-group. This reduced strength has been observed in tests on portal frame joints as well as overlapped purlin joints. For a long bolt-group length, an upper bound would be the full in-plane major axis moment-capacity of the section, which can be predicted using the conventional Direct Strength Method (DSM). For a short bolt-group length, in the order of the depth of the section, a reasonable lower bound to the reduced strength can be predicted by using the DSM, modified to include the effect of the bimoment at the connection. In this paper, a parametric study is performed covering sections of different values of slenderness.
Highlights Previous experimental tests have shown that the strength of web bolted moment resisting connections between cold-formed steel channel members is dependent on the length of the bolt group This reduced strength is observed in portal frame joints and overlapped purlin joints For a long bolt group length, the full in-plane major axis moment capacity of the section as predicted by the Direct Strength Method (DSM) can be developed For a short bolt group length, in order of the depth of the section, a reasonable lower bound can be predicted by DSM including the effect of the bimoment at the connection.
DSM for ultimate strength of bolted moment-connections between cold-formed steel channel members
Lim, James B.P. (author) / Hancock, Gregory J. (author) / Charles Clifton, G. (author) / Pham, Cao Hung (author) / Das, Raj (author)
Journal of Constructional Steel Research ; 117 ; 196-203
2015-10-13
8 pages
Article (Journal)
Electronic Resource
English
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