Buckling experiments on hollow flange beams with web stiffeners
The hollow flange beam (HFB) is a new cold-formed and resistance-welded section developed in Australia. Due to its unique geometry comprising two stiff triangular flanges and a slender web, the HFB is susceptible to a lateral-distortional buckling mode of failure involving web distortion. Investigation using finite-element analyses showed that the use of transverse web plate stiffeners effectively eliminated lateral-distortional buckling of HFBs and thus any associated reduction in flexural capacity. A detailed experimental investigation was then carried out to validate the results from the finite-element analysis and to improve the stiffener configuration further. This led to the development of a special stiffener that is screw-fastened to the flanges on alternate sides of the web. This paper presents the details of the experimental investigations, the results, and the final stiffener arrangement whereas the details of the finite-element analyses are presented in a companion paper.
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|Item Type:||Journal Article|
|Additional Information:||Compilation and indexing terms, Copyright 2013 Elsevier Inc.
Hollow flange beam (HFB)
|Keywords:||Beams and girders, Bending strength, Buckling, Finite element method, Flanges, Plates (structural components), Stiffness, Structural analysis|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 1997 American Society of Civil Engineers|
|Deposited On:||21 Nov 2013 01:56|
|Last Modified:||21 Apr 2015 00:29|
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