Cold-formed steel sections with web openings subjected to web crippling under two-flange loading conditions - Part II: Parametric study and proposed design equations

Asraf Uzzaman, James B. P. Lim, David Nash, Jim Rhodes, Ben Young

    Research output: Contribution to journalArticle

    36 Citations (Scopus)

    Abstract

    A parametric study of cold-formed steel sections with web openings subjected to web crippling was undertaken using finite element analysis, to investigate the effects of web holes and cross-section sizes on the web crippling strengths of channel sections subjected to web crippling under both interior-two-flange (ITF) and end-two-flange (ETF) loading conditions. In both loading conditions, the hole was centred beneath the bearing plate. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the flat depth of the web, and the ratio of the length of bearing plates to the flat depth of the web. In this paper, design recommendations in the form of web crippling strength reduction factors are proposed, that are conservative to both the experimental and finite element results.
    Original languageEnglish
    Pages (from-to)79-87
    Number of pages9
    JournalThin-Walled Structures
    Volume56
    Issue numbernull
    DOIs
    Publication statusPublished - Jul 2012

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    Bearings (structural)
    Flanges
    Steel
    Finite element method

    Cite this

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    title = "Cold-formed steel sections with web openings subjected to web crippling under two-flange loading conditions - Part II: Parametric study and proposed design equations",
    abstract = "A parametric study of cold-formed steel sections with web openings subjected to web crippling was undertaken using finite element analysis, to investigate the effects of web holes and cross-section sizes on the web crippling strengths of channel sections subjected to web crippling under both interior-two-flange (ITF) and end-two-flange (ETF) loading conditions. In both loading conditions, the hole was centred beneath the bearing plate. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the flat depth of the web, and the ratio of the length of bearing plates to the flat depth of the web. In this paper, design recommendations in the form of web crippling strength reduction factors are proposed, that are conservative to both the experimental and finite element results.",
    author = "Asraf Uzzaman and Lim, {James B. P.} and David Nash and Jim Rhodes and Ben Young",
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    Cold-formed steel sections with web openings subjected to web crippling under two-flange loading conditions - Part II: Parametric study and proposed design equations. / Uzzaman, Asraf; Lim, James B. P.; Nash, David; Rhodes, Jim; Young, Ben.

    In: Thin-Walled Structures, Vol. 56, No. null, 07.2012, p. 79-87.

    Research output: Contribution to journalArticle

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    T1 - Cold-formed steel sections with web openings subjected to web crippling under two-flange loading conditions - Part II: Parametric study and proposed design equations

    AU - Uzzaman, Asraf

    AU - Lim, James B. P.

    AU - Nash, David

    AU - Rhodes, Jim

    AU - Young, Ben

    PY - 2012/7

    Y1 - 2012/7

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    AB - A parametric study of cold-formed steel sections with web openings subjected to web crippling was undertaken using finite element analysis, to investigate the effects of web holes and cross-section sizes on the web crippling strengths of channel sections subjected to web crippling under both interior-two-flange (ITF) and end-two-flange (ETF) loading conditions. In both loading conditions, the hole was centred beneath the bearing plate. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth to the flat depth of the web, and the ratio of the length of bearing plates to the flat depth of the web. In this paper, design recommendations in the form of web crippling strength reduction factors are proposed, that are conservative to both the experimental and finite element results.

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