Finite-element analysis of hollow flange beams with web stiffeners
A new cold-formed and resistance-welded section known as the hollow flange beam (HFB) has been developed recently in Australia. In contrast to the common lateral-torsional buckling mode of I-beams, this unique section comprising two stiff triangular flanges and a slender web is susceptible to a lateral-distortional buckling mode of failure involving lateral deflection, twist, and cross-section change due to web distortion. This lateral-distortional buckling behavior has been shown to cause significant reduction of the available flexural capacity of HFBs. An investigation using finite-element analyses and large-scale experiments was carried out into the use of transverse web plate stiffeners to improve the lateral buckling capacity of HFBs. This paper presents the details of the finite-element model and analytical results. The experimental procedure and results are outlined 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, Deflection (structures), Failure analysis, Finite element method, Flanges, Mathematical models, Structural analysis|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||20 Nov 2013 23:23|
|Last Modified:||15 Jan 2015 23:46|
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