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Steel and Composite Structures
  Volume 19, Number 6, December 2015, pages 1511-1529
DOI: http://dx.doi.org/10.12989/scs.2015.19.6.1511
 


Confinement of concrete in two-chord battened composite columns
Elżbieta Szmigiera

 
Abstract
    This article provides an analysis of the complex character of stress distribution in concrete in stub columns consisting of two HE160A steel sections held together with batten plates and filled with concrete. In such columns, evaluating the effect of concrete confinement and determining the extent of this confinement constitute a substantially complex problem. The issue was considered in close correspondence to rectangular cross section tubular elements filled with concrete, concrete-encased columns, as well as to steel-concrete columns in which reinforcement bars are connected with shackles. In the analysis of concrete confinement in two-chord columns, elements of computational methods developed for different types of composite cross sections were adopted. The achieved analytical results were compared with calculations based on test results.
 
Key Words
    composite structures; steel-concrete columns; two-chords battened columns; concrete confinement; load bearing capacity
 
Address
Faculty of Civil Engineering, Warsaw University of Technology, Al. Armii Ludowej 16, 00-637 Warsaw, Poland.
 

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