GBT-based assessment of the buckling behaviour of cold-formed steel purlins restrained by sheeting

Rodrigo de Moura Gonçalves

doi:10.1016/j.tws.2013.06.005

GBT-based assessment of the buckling behaviour of cold-formed steel purlins restrained by sheeting

Rodrigo de Moura Gonçalves

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26 Citations (Scopus)

Abstract

This paper presents and discusses the results of a GBT-based numerical investigation concerning the local, distortional and global buckling behaviour of lipped channel and zed-section cold-formed steel purlins restrained by steel sheeting and subjected to an uplift loading. Strengthened (lapped) joints, commonly employed at internal supports to preclude the occurrence of local/distortional buckling phenomena, are also investigated and an illustrative application of the use of GBT to determine strengthening lengths is also presented. The sheeting restraint is modelled by means of elastic translational and rotational springs, located at the purlin upper flange, and the joint strengthening is modelled by doubling the cross-section wall thickness. For validation, the GBT-based results are compared with values yielded by ANSYS shell finite element analyses.

Original language	Unknown
Pages (from-to)	217-229
Journal	Thin-Walled Structures
Volume	72
Issue number	NA
DOIs	https://doi.org/10.1016/j.tws.2013.06.005
Publication status	Published - 1 Jan 2013

Access to Document

10.1016/j.tws.2013.06.005

Cite this

Gonçalves, R. D. M. (2013). GBT-based assessment of the buckling behaviour of cold-formed steel purlins restrained by sheeting. Thin-Walled Structures, 72(NA), 217-229. https://doi.org/10.1016/j.tws.2013.06.005

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abstract = "This paper presents and discusses the results of a GBT-based numerical investigation concerning the local, distortional and global buckling behaviour of lipped channel and zed-section cold-formed steel purlins restrained by steel sheeting and subjected to an uplift loading. Strengthened (lapped) joints, commonly employed at internal supports to preclude the occurrence of local/distortional buckling phenomena, are also investigated and an illustrative application of the use of GBT to determine strengthening lengths is also presented. The sheeting restraint is modelled by means of elastic translational and rotational springs, located at the purlin upper flange, and the joint strengthening is modelled by doubling the cross-section wall thickness. For validation, the GBT-based results are compared with values yielded by ANSYS shell finite element analyses.",

keywords = "Generalised Beam Theory (GBT), Steel sheeting, Purlin-sheeting systems, Buckling analysis, Cold-formed steel purlins, Lapped connections",

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N2 - This paper presents and discusses the results of a GBT-based numerical investigation concerning the local, distortional and global buckling behaviour of lipped channel and zed-section cold-formed steel purlins restrained by steel sheeting and subjected to an uplift loading. Strengthened (lapped) joints, commonly employed at internal supports to preclude the occurrence of local/distortional buckling phenomena, are also investigated and an illustrative application of the use of GBT to determine strengthening lengths is also presented. The sheeting restraint is modelled by means of elastic translational and rotational springs, located at the purlin upper flange, and the joint strengthening is modelled by doubling the cross-section wall thickness. For validation, the GBT-based results are compared with values yielded by ANSYS shell finite element analyses.

AB - This paper presents and discusses the results of a GBT-based numerical investigation concerning the local, distortional and global buckling behaviour of lipped channel and zed-section cold-formed steel purlins restrained by steel sheeting and subjected to an uplift loading. Strengthened (lapped) joints, commonly employed at internal supports to preclude the occurrence of local/distortional buckling phenomena, are also investigated and an illustrative application of the use of GBT to determine strengthening lengths is also presented. The sheeting restraint is modelled by means of elastic translational and rotational springs, located at the purlin upper flange, and the joint strengthening is modelled by doubling the cross-section wall thickness. For validation, the GBT-based results are compared with values yielded by ANSYS shell finite element analyses.

KW - Generalised Beam Theory (GBT)

KW - Steel sheeting

KW - Purlin-sheeting systems

KW - Buckling analysis

KW - Cold-formed steel purlins

KW - Lapped connections

U2 - 10.1016/j.tws.2013.06.005

DO - 10.1016/j.tws.2013.06.005

M3 - Article

VL - 72

SP - 217

EP - 229

JO - Thin-Walled Structures

JF - Thin-Walled Structures

SN - 0263-8231

IS - NA

ER -