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Steel and Composite Structures
  Volume 4, Number 2, April 2004 , pages 95-112

Experimental study on concrete filled square hollow sections
Dennis Lam, and Christopher A. Williams

    A series of tests was performed to consider the behaviour of short composite columns under axial compressive loading, covering a range of S275 and S355 grade steel square hollow section filled with normal and high strength concrete. The interaction between the steel and the concrete component is considered and the results show that concrete shrinkage has an effect on the axial strength of the column. Comparisons between Eurocode 4, ACI-318 and the Australian Standards with the findings of this research were made. Result showed the equation used by the ACI-318 and the proposed Australian Standards gave better predication for the axial capacity of concrete filled SHS columns than the Eurocode 4.
Key Words
    composite column; concrete filled; square hollow sections; axial strength; confinement.
Dennis Lam; School of Civil Engineering, University of Leeds, Leeds, LS2 9JT, U.K.rnChristopher A. Williams; Arup, Admiral House, 78 East Street, Leeds, LS9 8EE, U.K.

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