Raef M. Sully

Gregory J. Hancock

University of Sydney. School of Civil and Mining Engineering

This research report describes a test programme conducted into the behaviour of cold-formed square hollow section (SHS) beam-columns of slender cross-section and follows an earlier research report into the behaviour of compact SHS beam-columns by the same authors (Sully & Hancock (1994)). The tests were conducted in a purpose built test rig capable of applying load and moment in a constant ratio. The test specimens were pin-ended specimens loaded at two different ratios of end moment. The maximum second order elastic moments are calculated from the maximum applied end moments, and the applied load. Comparison of these moments is made with the interaction design rules from AS4100 Specification (SAA (1990)) and the AISC-LRFD Specification (AISC (1994)).

University of Sydney. School of Civil and Mining Engineering

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