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Title of Journal: J Wuhan Univ TechnolMat Sci Edit

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Abbravation: Journal of Wuhan University of Technology-Mater. Sci. Ed.

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Wuhan University of Technology

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10.1007/bf02730300

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1993-0437

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Performance investigation of square concretefille

Authors: Bing Chen Xiao Liu Siping Li
Publish Date: 2011/07/26
Volume: 26, Issue: 4, Pages: 730-736
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Abstract

The behaviour of square concretefilled steel tube columns under concentrical loading was studied More than one hundred specimens were tested to investigate the effects of thickness of steel tube on the load carrying capacity of the concretefilled tubular columns CFTs The effect of the grade of concrete and content of expansive agent were also investigated The effect of these parameters on the confinement of the concrete core was studied as well From the experimental study it was found that for both CFTs with different strength grade concrete core the ultimate load carrying capacity increases with the increase in percentage of expansive agent up to 20 but it again decreases at 25 of expansive agent content It was also shown that the failure mode of CFTs depends on the strength grade of concrete core

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