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Numerical analysis of circular concrete-filled steel tubular slender beam-columns with preload affects

Journal Article


Abstract


  • This paper presents a new numerical model for the nonlinear analysis of circular concrete-¯lled

    steel tubular (CFST) slender beam-columns with preload e®ects, in which the initial geometric

    imperfections, de°ections caused by preloads, concrete con¯nement and second order e®ects are

    incorporated. Computational algorithms are developed to solve the nonlinear equilibrium

    equations. Comparative studies are undertaken to validate the accuracy of computational

    algorithms developed. Also included is a parametric study for examining the e®ects of the

    preloads, column slenderness, diameter-to-thickness ratio, loading eccentricity, steel yield stress

    and concrete con¯nement on the behavior of circular CFST slender beam-columns under

    eccentric loadings. The numerical model is demonstrated to be capable of predicting accurately

    the behavior of circular CFST slender beam-columns with preloads. The preloads on the steel

    tubes can a®ect signi¯cantly the behavior of CFST slender beam-columns and must be taken

    into account in the design.

UOW Authors


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

Publication Date


  • 2013

Citation


  • Patel, V. Ishvarbhai., Liang, Q. Quan. & Hadi, M. N. S. (2013). Numerical analysis of circular concrete-filled steel tubular slender beam-columns with preload affects. International Journal of Structural Stability and Dynamics, 13 (3), 1250065-1-1250065-23.

Scopus Eid


  • 2-s2.0-84875334924

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/538

Start Page


  • 1250065-1

End Page


  • 1250065-23

Volume


  • 13

Issue


  • 3

Abstract


  • This paper presents a new numerical model for the nonlinear analysis of circular concrete-¯lled

    steel tubular (CFST) slender beam-columns with preload e®ects, in which the initial geometric

    imperfections, de°ections caused by preloads, concrete con¯nement and second order e®ects are

    incorporated. Computational algorithms are developed to solve the nonlinear equilibrium

    equations. Comparative studies are undertaken to validate the accuracy of computational

    algorithms developed. Also included is a parametric study for examining the e®ects of the

    preloads, column slenderness, diameter-to-thickness ratio, loading eccentricity, steel yield stress

    and concrete con¯nement on the behavior of circular CFST slender beam-columns under

    eccentric loadings. The numerical model is demonstrated to be capable of predicting accurately

    the behavior of circular CFST slender beam-columns with preloads. The preloads on the steel

    tubes can a®ect signi¯cantly the behavior of CFST slender beam-columns and must be taken

    into account in the design.

UOW Authors


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

Publication Date


  • 2013

Citation


  • Patel, V. Ishvarbhai., Liang, Q. Quan. & Hadi, M. N. S. (2013). Numerical analysis of circular concrete-filled steel tubular slender beam-columns with preload affects. International Journal of Structural Stability and Dynamics, 13 (3), 1250065-1-1250065-23.

Scopus Eid


  • 2-s2.0-84875334924

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers/538

Start Page


  • 1250065-1

End Page


  • 1250065-23

Volume


  • 13

Issue


  • 3