Experimental Study of Offset HSS Connections
Publication: Journal of Structural Engineering
Volume 132, Issue 5
Abstract
The structural behavior of welded hollow structural sections (HSS) connections in which one member is laterally offset from the plane of a connection is investigated experimentally and compared with corresponding planar connections. Sixteen full-scale test connections, consisting of either T or N configurations fabricated from class C HSS, were tested at load levels comparable with those expected to occur in actual trusses. In all cases the mode of failure was by localized large deflections of the flange face and sidewalls of the compression chord. It was found that in the case of T connections, the reduction in capacity due to offsetting a member by as much as 17% of the width of the chord member from the central plane of the truss was marginal. N configurations, whose diagonal members were offset by 8% of the width of the chord member, showed a slight increase in ultimate strength. The design values obtained using both AISC LRFD and CIDECT specifications are compared with the test results where appropriate.
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Acknowledgments
The writers wish to thank BID Canada Ltd. for in-kind donations relating to the testing frame and test specimens. Additional financial support from the Natural Sciences and Engineering Research Council and the Steel Structures Education Foundation is greatly appreciated.
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 132 • Issue 5 • May 2006
Pages: 717 - 725
Copyright
© 2006 ASCE.
History
Received: Oct 28, 2003
Accepted: May 17, 2005
Published online: May 1, 2006
Published in print: May 2006
Notes
Note. Associate Editor: Donald W. White
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