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Modelling, verification and investigation of behaviour of circular CFST columns

Author(s):


Medium: journal article
Language(s): English
Published in: Structural Concrete, , n. 3, v. 15
Page(s): 340-349
DOI: 10.1002/suco.201300045
Abstract:

This paper is an attempt to provide a detailed procedure for the finite element modelling and simulation of concrete-filled steel tubular (CFST) columns subjected to axial compression using the commercial software package ANSYS 12. A modified material model for modelling the concrete core is described and explained. Composite action is modelled between the concrete core and the steel tube and the procedure is presented with the recommended properties for modelling such behaviour. The proposed model is then validated by comparing its numerical results with selected experimental results available in the literature. The proposed model is used to investigate numerically the load transfer mechanism of CFST columns filled with different grades of concrete in order to study the effect of this parameter - i.e. compressive strength of concrete core - on the load transfer mechanism in such columns. Further, the proposed model has been employed for investigating the confining pressure provided by the steel tube on the concrete core along the length of the CFST column.

Keywords:
composite columns circular columns confinement concrete-filled tube CFST column CFT confined concrete
Available from: Refer to publisher
Structurae cannot make the full text of this publication available at this time. The full text can be accessed through the publisher via the DOI: 10.1002/suco.201300045.
  • About this
    data sheet
  • Reference-ID
    10070497
  • Published on:
    07/10/2014
  • Last updated on:
    21/10/2014
 
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