Finite element analysis of hollow flange beams with web stiffeners

Avery, P. & Mahendran, M. (1996) Finite element analysis of hollow flange beams with web stiffeners. In Thirteenth International Specialty Conference on Cold-Formed Steel Structures, Missouri S&T (formerly the University of Missouri - Rolla), St. Louis, Missouri U.S.A., pp. 227-241.


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 at this conference.

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ID Code: 64375
Item Type: Conference Paper
Refereed: No
Additional Information: Compilation and indexing terms, Copyright 2013 Elsevier Inc. 2004298265300 Buckling capacity Hollow flange beams (HFB) Plate stiffeners Web distortion
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Keywords: Beams and girders, Buckling, Failure (mechanical), Finite element method, Flanges, Loading, Plates (structural components), Steel structures, Stiffness, Strength of materials, Welding
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 21 Nov 2013 01:25
Last Modified: 21 Nov 2013 01:25

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