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    Distortional Buckling of CFS Stiffened Lipped Channel Compression Members

    Source: Journal of Structural Engineering:;2014:;Volume ( 140 ):;issue: 012
    Author:
    M. V. Anil Kumar
    ,
    V. Kalyanaraman
    DOI: 10.1061/(ASCE)ST.1943-541X.0001027
    Publisher: American Society of Civil Engineers
    Abstract: The direct strength method (DSM) simplified the design of cold-formed steel (CFS) beams and columns compared with the traditional effective width method (EWM). In this paper, DSM equations for the distortional buckling (DB) strength are evaluated using the results of the experimental study on channel compression members with edge and intermediate stiffeners as well as nonlinear finite-element analysis (FEA) of the stiffened lipped channel compression members with various configurations, which fail after only DB. A total of 14 fixed-ended stiffened lipped channel compression members with intermediate stiffeners in both the web and flanges were tested, which failed after only DB. Further, additional data on the DB behavior is generated based on a parametric study using the nonlinear FEA, which was initially calibrated with the test data. A study on effect of parameters, such as the type of cross section, the dimensions of the cross section, the lip depth to flange width ratio (
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      Distortional Buckling of CFS Stiffened Lipped Channel Compression Members

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    contributor authorM. V. Anil Kumar
    contributor authorV. Kalyanaraman
    date accessioned2017-05-08T22:18:58Z
    date available2017-05-08T22:18:58Z
    date copyrightDecember 2014
    date issued2014
    identifier other40618247.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/77354
    description abstractThe direct strength method (DSM) simplified the design of cold-formed steel (CFS) beams and columns compared with the traditional effective width method (EWM). In this paper, DSM equations for the distortional buckling (DB) strength are evaluated using the results of the experimental study on channel compression members with edge and intermediate stiffeners as well as nonlinear finite-element analysis (FEA) of the stiffened lipped channel compression members with various configurations, which fail after only DB. A total of 14 fixed-ended stiffened lipped channel compression members with intermediate stiffeners in both the web and flanges were tested, which failed after only DB. Further, additional data on the DB behavior is generated based on a parametric study using the nonlinear FEA, which was initially calibrated with the test data. A study on effect of parameters, such as the type of cross section, the dimensions of the cross section, the lip depth to flange width ratio (
    publisherAmerican Society of Civil Engineers
    titleDistortional Buckling of CFS Stiffened Lipped Channel Compression Members
    typeJournal Paper
    journal volume140
    journal issue12
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)ST.1943-541X.0001027
    treeJournal of Structural Engineering:;2014:;Volume ( 140 ):;issue: 012
    contenttypeFulltext
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