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Inelastic stability analysis of high strength rectangular concrete-filled steel tubular slender beam-columns

Journal Article


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Abstract


  • There is relatively little numerical study on the behavior of eccentrically loaded high strength

    rectangular concrete-filled steel tubular (CFST) slender beam-columns with large depth-to-thickness ratios,

    which may undergo local and global buckling. This paper presents a multi scale numerical model for

    simulating the interaction local and global buckling behavior of hlgh strength thin-walled rectangular

    CFST slender beam-columns under eccentric loading. The effects of progressive local buckling are taken

    into account in the mesoscale model based on fiber element formulations. Computational algorithms based

    on the Muller's method are developed to obtain complete load-deflection responses of CFST slender

    beam-columns at the macroscale level. Performance indices are proposed to quantify the performance of

    CFST slender beam-columns. The accuracy of the multiscale numerical model is examined by

    comparisons of computer solutions with existing experimental results. The numerical model is utilized to

    investigate the effects of concrete compressive strength, depth-to-thickness ratio, loading eccentricity ratio

    and column slenderness ratio on the performance indices. The multiscale numerical model is shown to be

    accurate and efficient for predicting the interaction buckling behavior of high strength thin-walled CFST

    slender beam-columns.

UOW Authors


  •   Patel, Vipulkumar I. (external author)
  •   Liang, Qing Quan (external author)
  •   Hadi, Muhammad

Publication Date


  • 2012

Citation


  • Patel, V. Ishvarbhai., Liang, Q. Quan. & Hadi, M. N. S. (2012). Inelastic stability analysis of high strength rectangular concrete-filled steel tubular slender beam-columns. Interaction and Multiscale Mechanics, 5 (2), 91-104.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7354&context=engpapers&unstamped=1

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4422

Number Of Pages


  • 13

Start Page


  • 91

End Page


  • 104

Volume


  • 5

Issue


  • 2

Abstract


  • There is relatively little numerical study on the behavior of eccentrically loaded high strength

    rectangular concrete-filled steel tubular (CFST) slender beam-columns with large depth-to-thickness ratios,

    which may undergo local and global buckling. This paper presents a multi scale numerical model for

    simulating the interaction local and global buckling behavior of hlgh strength thin-walled rectangular

    CFST slender beam-columns under eccentric loading. The effects of progressive local buckling are taken

    into account in the mesoscale model based on fiber element formulations. Computational algorithms based

    on the Muller's method are developed to obtain complete load-deflection responses of CFST slender

    beam-columns at the macroscale level. Performance indices are proposed to quantify the performance of

    CFST slender beam-columns. The accuracy of the multiscale numerical model is examined by

    comparisons of computer solutions with existing experimental results. The numerical model is utilized to

    investigate the effects of concrete compressive strength, depth-to-thickness ratio, loading eccentricity ratio

    and column slenderness ratio on the performance indices. The multiscale numerical model is shown to be

    accurate and efficient for predicting the interaction buckling behavior of high strength thin-walled CFST

    slender beam-columns.

UOW Authors


  •   Patel, Vipulkumar I. (external author)
  •   Liang, Qing Quan (external author)
  •   Hadi, Muhammad

Publication Date


  • 2012

Citation


  • Patel, V. Ishvarbhai., Liang, Q. Quan. & Hadi, M. N. S. (2012). Inelastic stability analysis of high strength rectangular concrete-filled steel tubular slender beam-columns. Interaction and Multiscale Mechanics, 5 (2), 91-104.

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=7354&context=engpapers&unstamped=1

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/4422

Number Of Pages


  • 13

Start Page


  • 91

End Page


  • 104

Volume


  • 5

Issue


  • 2