Flexural capacity of hollow flange beams
Avery, P., Mahendran, M., & Nasir, A. (2000) Flexural capacity of hollow flange beams. Journal of Constructional Steel Research, 53(2), pp. 201-223.
The hollow flange beam (HFB) is a unique cold-formed steel section developed in Australia for use as a flexural member. Research has identified that the HFB section's flexural capacity for intermediate span members is limited by lateral distortional buckling, which is characterized by simultaneous lateral deflection, twist, and web distortion. This buckling behaviour is mainly due to the unique geometry of the section, comprising two torsionally stiff triangular flanges connected by a slender web. This paper presents a finite element analytical model suitable for non-linear analysis of HFB flexural members. The model includes all significant effects that may influence the ultimate capacity of such members, including material inelasticity, local buckling, member instability, web distortion, residual stresses, and geometric imperfections. It was found to accurately predict both the elastic lateral distortional buckling moments and the ultimate capacities of HFB flexural members, and was therefore used in the development of design curves and suitable design procedures.
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|Item Type:||Journal Article|
|Additional Information:||Compilation and indexing terms, Copyright 2013 Elsevier Inc.
Hollow flange beams (HFB)
Lateral distortional buckling
|Keywords:||Steel beams and girders, Bending strength, Buckling, Cold working, Deflection (structures), Elasticity, Finite element method, Flanges, Mathematical models, Nonlinear equations, Residual stresses|
|Divisions:||Current > Schools > School of Civil Engineering & Built Environment
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Deposited On:||13 Nov 2013 22:25|
|Last Modified:||14 Nov 2013 20:49|
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