AN EXPERIMENTAL INVESTIGATION ON THE BEHAVIOUR OF CONCRETE FILLED STEEL TUBULAR COLUMNS AND FRAMES

Mohammed Zakir Ali, Putte Gowda

Abstract: In this paper, an attempt has been made to investigate the axial load carrying capacity of CFST columns and flexural capacity of CFST frames. The grades of concrete used were M20 and M40. A total of 18 specimens were tested for axial compression whereas 9 frame specimens were tested for flexure. The height of columns being 0.5m, 1.0m and 1.5m whereas the frame will have column of height 1m and span of beam being 1m. Two empty hollow steel tubular columns of height 0.5m, 1m and 1.5m and two each for Concrete Filled Steel Tubular (CFST) columns of height 0.5m, 1.0m and 1.5m for M20 and M40 grade of concrete were tested. Three hollow steel tubular frames, three infilled with M20 and M40 grade of concrete a piece were tested. Finally Eurocode 4 and AISC-LRFD codes were used to compare the experimental results of concrete filled steel tubular columns.

Keywords: CFST, Concrete, columns, frames, epoxy, curing compound

DOI: https://doi.org/10.15623/ijret.2016.0532040