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© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Cold-formed sections (CFS) fabricated using high strength steel have recently been utilised in construction due to their numerous advantages, such as higher load-to-weight ratio, flexibility of shape, and availability in relatively long spans. High strength CFS channel sections can be used as purlins and joists in structural systems; thus, they are vulnerable to different buckling instabilities, including web crippling. Predicting their web crippling capacity using the current design guidelines may be insufficient due to their empirical nature. This study, therefore, aims to investigate the web crippling capacity of high strength unlipped CFS sections under End-Two-Flange (ETF) loading conditions. Numerical simulations were carried out using nonlinear finite element (FE) analysis. The developed models were first validated against available experimental data and then used as a base for conducting an extensive parametric study. The ultimate web crippling capacity obtained from the parametric study was used to assess the accuracy of the available design equations in the standards and those proposed in the relevant studies. The assessment revealed that the existing design equations are not suitable for predicting the ultimate web crippling capacity for high strength CFS channel sections under the ETF loading condition. Thus, a modified design equation was proposed, following the same technique of current design standards, and a new Direct Strength Method (DSM) approach was developed.

Details

Title
Web Crippling Behaviour of Cold-Formed High Strength Steel Unlipped Channel Beams
Author
Kanthasamy, Elilarasi 1 ; Alsanat, Husam 2   VIAFID ORCID Logo  ; Poologanathan, Keerthan 1   VIAFID ORCID Logo  ; Gatheeshgar, Perampalam 3 ; Corradi, Marco 4   VIAFID ORCID Logo  ; Thirunavukkarasu, Kajaharan 5 ; Dissanayake, Madhushan 1 

 Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; [email protected] (E.K.); [email protected] (K.P.); [email protected] (M.C.); [email protected] (M.D.) 
 Department of Civil Engineering, School of Engineering, Al-Hussein Bin Talal (AHU) University, Ma’an P.O. Box 20, Jordan; [email protected] 
 Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; [email protected] (E.K.); [email protected] (K.P.); [email protected] (M.C.); [email protected] (M.D.); School of Computing, Engineering, and Digital Technologies, Teesside University, Middlesbrough TS1 3BX, UK 
 Department of Mechanical and Construction Engineering, Northumbria University, Newcastle upon Tyne NE1 8ST, UK; [email protected] (E.K.); [email protected] (K.P.); [email protected] (M.C.); [email protected] (M.D.); Department of Engineering, Perugia University, 06125 Perugia, Italy 
 Institute of Technology, University of Moratuwa, Homagama 10200, Sri Lanka; [email protected] 
First page
291
Publication year
2022
Publication date
2022
Publisher
MDPI AG
e-ISSN
20755309
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2642360341
Copyright
© 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.