Analysis of cold-formed zed-purlins partially restrained by steel sheeting

Zhi-Ming Ye, Roger Kettle, Long-Yuan Li

Research output: Contribution to journalArticle

Abstract

This paper presents an analysis model for cold-formed purlin-sheeting systems subjected to wind uplift loading in which the restraint of the sheeting to the purlin is taken into account by using two springs representing the translational and rotational restraints provided by the sheeting. The model yields a set of three differential equations corresponding to one torsion and two bending equations. The set of equations is solved by means of trigonometric series. The influence of spring stiffness and fixing position of the purlin and sheeting on the stresses resulted in the cross-section of the purlin is discussed. The results obtained from this study not only highlight the influence of the sheeting restraints on the results of stresses but also can be used as an input to the finite strip code for carrying out the linear elastic buckling analysis of the sections. 

Original languageEnglish
Pages (from-to)731-739
Number of pages9
JournalComputers and Structures
Volume82
Issue number9-10
Early online date16 Mar 2004
DOIs
Publication statusPublished - Apr 2004

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Steel
Trigonometric Series
Model Analysis
Buckling
Torsional stress
Torsion
Strip
Stiffness
Differential equations
Cross section
Differential equation
Influence
Model

Keywords

  • bending
  • cold-formed
  • purlin
  • restrained
  • sheeting
  • steel
  • strength
  • thin-walled

Cite this

Ye, Zhi-Ming ; Kettle, Roger ; Li, Long-Yuan. / Analysis of cold-formed zed-purlins partially restrained by steel sheeting. In: Computers and Structures. 2004 ; Vol. 82, No. 9-10. pp. 731-739.
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Analysis of cold-formed zed-purlins partially restrained by steel sheeting. / Ye, Zhi-Ming; Kettle, Roger; Li, Long-Yuan.

In: Computers and Structures, Vol. 82, No. 9-10, 04.2004, p. 731-739.

Research output: Contribution to journalArticle

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AU - Ye, Zhi-Ming

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AU - Li, Long-Yuan

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N2 - This paper presents an analysis model for cold-formed purlin-sheeting systems subjected to wind uplift loading in which the restraint of the sheeting to the purlin is taken into account by using two springs representing the translational and rotational restraints provided by the sheeting. The model yields a set of three differential equations corresponding to one torsion and two bending equations. The set of equations is solved by means of trigonometric series. The influence of spring stiffness and fixing position of the purlin and sheeting on the stresses resulted in the cross-section of the purlin is discussed. The results obtained from this study not only highlight the influence of the sheeting restraints on the results of stresses but also can be used as an input to the finite strip code for carrying out the linear elastic buckling analysis of the sections. 

AB - This paper presents an analysis model for cold-formed purlin-sheeting systems subjected to wind uplift loading in which the restraint of the sheeting to the purlin is taken into account by using two springs representing the translational and rotational restraints provided by the sheeting. The model yields a set of three differential equations corresponding to one torsion and two bending equations. The set of equations is solved by means of trigonometric series. The influence of spring stiffness and fixing position of the purlin and sheeting on the stresses resulted in the cross-section of the purlin is discussed. The results obtained from this study not only highlight the influence of the sheeting restraints on the results of stresses but also can be used as an input to the finite strip code for carrying out the linear elastic buckling analysis of the sections. 

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