Finite-element analysis of hollow flange beams with web stiffeners

Avery, Philip & Mahendran, Mahen (1997) Finite-element analysis of hollow flange beams with web stiffeners. Journal of structural engineering, 123(9), pp. 1123-1129.

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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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25 citations in Scopus
21 citations in Web of Science®
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ID Code: 64381
Item Type: Journal Article
Refereed: Yes
Additional Information: Compilation and indexing terms, Copyright 2013 Elsevier Inc.
Hollow flange beam (HFB)
Web stiffeners
Keywords: Beams and girders, Bending strength, Buckling, Deflection (structures), Failure analysis, Finite element method, Flanges, Mathematical models, Structural analysis
DOI: 10.1061/(ASCE)0733-9445(1997)123:9(1123)
ISSN: 0733-9445
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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