Finite element analysis of the behaviour and ultimate strength of battened columns encased in concrete

Reza Mehrabani, Nandivaram E. Shanmugam

    Research output: Contribution to journalArticle

    Abstract

    This paper is concerned with the behaviour and ultimate load-carrying capacity of fully encased battened steel columns subjected to axially or eccentrically applied compression. A nonlinear three-dimensional finite element model has been developed to simulate the columns by using ABAQUS software package. Three encased composite columns and their reference battened steel columns have been modelled. The accuracy of the finite element modelling has been assessed by comparing the results with the corresponding experimental values. Parametric studies have been carried out in order to examine their effects on the behaviour and ultimate strength of the composite columns. Parameters such as relative slenderness ((Formula presented.)), compressive strength of concrete (fck), yield strength of structural steel (fy), load eccentricity, and initial out-of-straightness have been considered. The results are presented in the form of column curves. It is found that composite columns show significantly higher ultimate strength and stiffness compared to their companion steel columns.

    Original languageEnglish
    Pages (from-to)263-280
    Number of pages18
    JournalIES Journal Part A: Civil and Structural Engineering
    Volume7
    Issue number4
    DOIs
    Publication statusPublished - 2 Oct 2014

    Fingerprint

    Concretes
    Finite element method
    Steel
    Composite materials
    ABAQUS
    Load limits
    Software packages
    Compressive strength
    Yield stress
    Loads (forces)
    Stiffness

    Keywords

    • battened steel columns
    • encased composite columns
    • finite element analyses
    • parametric studies
    • ultimate strength

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Computational Mechanics
    • Mechanical Engineering

    Cite this

    Finite element analysis of the behaviour and ultimate strength of battened columns encased in concrete. / Mehrabani, Reza; Shanmugam, Nandivaram E.

    In: IES Journal Part A: Civil and Structural Engineering, Vol. 7, No. 4, 02.10.2014, p. 263-280.

    Research output: Contribution to journalArticle

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