Effect of web holes on web crippling strength of cold-formed steel channel sections under end-one-flange loading condition - Part II: Parametric study and proposed design equations

Ying Lian, Asraf Uzzaman, James B.P. Lim, Gasser Abdelal, David Nash, Ben Young

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

This paper reports the second part of a study on the web crippling strength of cold-formed steel channel sections with web holes under the end-one-flange (EOF) loading condition. A parametric study is presented, using validated finite element models from the companion paper, that investigates the effect of web hole and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.
LanguageEnglish
Pages489-501
Number of pages13
JournalThin-Walled Structures
Volume107
Early online date25 Aug 2016
DOIs
Publication statusPublished - 1 Oct 2016

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Bearings (structural)
Flanges
Steel

Keywords

  • cold-formed steel
  • web crippling
  • finite element analysis
  • web hole
  • channel section
  • reduction factor
  • design recommendations

Cite this

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title = "Effect of web holes on web crippling strength of cold-formed steel channel sections under end-one-flange loading condition - Part II: Parametric study and proposed design equations",
abstract = "This paper reports the second part of a study on the web crippling strength of cold-formed steel channel sections with web holes under the end-one-flange (EOF) loading condition. A parametric study is presented, using validated finite element models from the companion paper, that investigates the effect of web hole and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.",
keywords = "cold-formed steel, web crippling, finite element analysis, web hole, channel section, reduction factor, design recommendations",
author = "Ying Lian and Asraf Uzzaman and Lim, {James B.P.} and Gasser Abdelal and David Nash and Ben Young",
year = "2016",
month = "10",
day = "1",
doi = "10.1016/j.tws.2016.06.026",
language = "English",
volume = "107",
pages = "489--501",
journal = "Thin-Walled Structures",
issn = "0263-8231",

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TY - JOUR

T1 - Effect of web holes on web crippling strength of cold-formed steel channel sections under end-one-flange loading condition - Part II: Parametric study and proposed design equations

AU - Lian, Ying

AU - Uzzaman, Asraf

AU - Lim, James B.P.

AU - Abdelal, Gasser

AU - Nash, David

AU - Young, Ben

PY - 2016/10/1

Y1 - 2016/10/1

N2 - This paper reports the second part of a study on the web crippling strength of cold-formed steel channel sections with web holes under the end-one-flange (EOF) loading condition. A parametric study is presented, using validated finite element models from the companion paper, that investigates the effect of web hole and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.

AB - This paper reports the second part of a study on the web crippling strength of cold-formed steel channel sections with web holes under the end-one-flange (EOF) loading condition. A parametric study is presented, using validated finite element models from the companion paper, that investigates the effect of web hole and cross-section sizes. The holes are located either centred above the bearing plates or with a horizontal clear distance to the near edge of the bearing plates. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the depth of the web, the ratio of the length of bearing plates to the flat depth of the web and the location of the holes as defined by the distance of the hole from the edge of the bearing plate divided by the flat depth of web. In this study, design recommendations in the form of web crippling strength reduction factor equations are proposed, which are conservative when compared with the experimental and finite element results.

KW - cold-formed steel

KW - web crippling

KW - finite element analysis

KW - web hole

KW - channel section

KW - reduction factor

KW - design recommendations

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T2 - Thin-Walled Structures

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