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A platform for research: civil engineering, architecture and urbanism
The capacity of grade C450 cold-formed rectangular hollow section T and X connections: An experimental investigation
AbstractThe paper presents the results of an experimental program which consists of 15 T and X truss joints fabricated from grade C450 cold-formed rectangular hollow sections (RHS). The aim is to study the effect of the increased yield stress and the somewhat reduced ductility resulting from the cold-working process on the static capacity of these joints. The experimental program was designed to include the full range of possible failure modes and covers a comprehensive spectrum of geometries, including commercially available sections which fall outside the CIDECT limits in terms of wall slenderness ratios. In a next step, the results are compared to the current CIDECT design rules where applicable. In particular, the need for a reduction factor of 0.9 on the capacity of grade C450 connections, imposed by both the CIDECT rules and the Eurocode, is evaluated.
HighlightsFifteen tests were conducted on grade C450 T and X welded RHS connections.Test results were compared to the predictions of the current CIDECT design rules.The comparison suggests the need for a modification factor for connections failing by fracture;The research suggests a capacity modification factor for ductile failures might be unnecessary.
The capacity of grade C450 cold-formed rectangular hollow section T and X connections: An experimental investigation
AbstractThe paper presents the results of an experimental program which consists of 15 T and X truss joints fabricated from grade C450 cold-formed rectangular hollow sections (RHS). The aim is to study the effect of the increased yield stress and the somewhat reduced ductility resulting from the cold-working process on the static capacity of these joints. The experimental program was designed to include the full range of possible failure modes and covers a comprehensive spectrum of geometries, including commercially available sections which fall outside the CIDECT limits in terms of wall slenderness ratios. In a next step, the results are compared to the current CIDECT design rules where applicable. In particular, the need for a reduction factor of 0.9 on the capacity of grade C450 connections, imposed by both the CIDECT rules and the Eurocode, is evaluated.
HighlightsFifteen tests were conducted on grade C450 T and X welded RHS connections.Test results were compared to the predictions of the current CIDECT design rules.The comparison suggests the need for a modification factor for connections failing by fracture;The research suggests a capacity modification factor for ductile failures might be unnecessary.
The capacity of grade C450 cold-formed rectangular hollow section T and X connections: An experimental investigation
Becque, Jurgen (author) / Wilkinson, Tim (author)
Journal of Constructional Steel Research ; 133 ; 345-359
2017-02-27
15 pages
Article (Journal)
Electronic Resource
English
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