Open Access Journal

ISSN : 2456-1290 (Online)

International Journal of Engineering Research in Computer Science and Engineering (IJERCSE)

Monthly Journal for Computer Science and Engineering

Open Access Journal

International Journal of Engineering Research in Mechanical and Civil Engineering (IJERMCE)

Monthly Journal for Mechanical and Civil Engineering

ISSN : 2456-1290 (Online)

An Experimental and Analytical Investigation on the Behaviour of Concrete Filled Steel Tubular Columns and Frames

Author : Mohammed Zakir Ali 1 Putte Gowda 2

Date of Publication :8th March 2017

Abstract: In this paper an attempt has been made to investigate the axial load carrying capacity of Concrete Filled Steel Tubular (CFST) columns. The grade of concrete is also one parameter which is studied in the present work. A total of 18 specimens were tested for axial compression. The height of compression members (columns) being 0.5m, 1.0m and 1.5m. Two empty hollow steel tubular columns for height 0.5m, 1m and 1.5m and two each for Concrete filled Steel Tube (CFST) columns for height 0.5m, 1.0m and 1.5m for M20 and M40 grade of concrete were tested. Finally Eurocode 4 and AISC-LRFD 2005 codes were used to compare the experimental results of Concrete Filled Steel Tubular (CFST) columns. The experimental results indicated that there was increase in the axial load carrying capacity of CFST columns from 17.3% to 19.7% and 22.2% to 38% for CFST columns filled with M20 and M40 grade of concrete respectively. The maximum percentage variation for experimental results and theoretical results of axial load carrying capacity of CFST columns evaluated in accordance with AISC-LRFD 2005 was around 21%. The maximum percentage variation for experimental results and theoretical results of axial load carrying capacity of CFST columns evaluated in accordance with Eurocode 4 was around 16%. Although there was some variation in the results between the experimental and theoretical results, but the experimental results were on the conservative side

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