An Experimental Investigation on Concrete Filled Steel Tube Columns Under Axial Compression

An Experimental Investigation on Concrete Filled Steel Tube Columns Under Axial Compression

P. Ravichandran, M. Shadheer Ahamed, D. Ambika

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Abstract. This paper presents an experimental investigation on the behaviour of concrete filled steel tube columns under axial compression. The steel columns were filled with self-compacting and self-curing concrete instead of normal conventional concrete. A test program consisting of square column, circular column and rectangular column was firstly conducted. The behaviour of three concrete filled steel tubular sections (CFSTs) under axial load is presented. The effect of steel tube dimensions, shapes and confinement of concrete are also examined. Measured column strengths are compared with the values predicted by Euro code 4 and American codes. Euro code 4, gives good estimation of self-compaction concrete. However, lower values as measured during the experiments were predicted by the American Concrete Institute (ACI) equation. Also, the effect of thickness of steel tubes, concrete cube strength and steel percentage is also studied. In addition to CFST column the steel tube also acts as confinement for concrete.

Concrete Filled Steel Tube, Self-Compacting, Self-Curing, Axial Compression, Square Column, Concrete Confinement

Published online 8/15/2021, 11 pages
Copyright © 2021 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA

Citation: P. Ravichandran, M. Shadheer Ahamed, D. Ambika, An Experimental Investigation on Concrete Filled Steel Tube Columns Under Axial Compression, Materials Research Proceedings, Vol. 19, pp 66-76, 2021


The article was published as article 9 of the book Recent Advancements in Geotechnical Engineering

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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