DYNAMIC BEHAVIOR OF COMPOSITE FILLED CIRCULAR STEEL TUBES WITH LIGHT WEIGHT CONCRETE AS INFILL

Mohd Rizwan Panwar, E. Ramesh Babu, N S Kumar

Abstract: An experimental and analytical investigation of concrete-filled steel tubular (CFST) columns is presented. composite circular steel tubes- with light weight concrete as infill for three different grades of light weight concrete say M20,M30 and M40 are tested for ultimate load capacity and axial shortening , under cyclic loading. steel tubes are compared for different lengths, cross sections and constant thickness. From this research study it is expected that ,regression models which were developed with minimum number of experiments based on taguchi’s method predicted the axial load carrying capacity very well and reasonably well at ultimate point. Cross sectional area of steel tube has most significant effect on ultimate load carrying capacity also it is observed that, as length of steel tube increased- load carrying capacity decreased.

Keywords: Composite Columns, Hallow Steel Tubes, Light Weight Concrete Filled Steel Tubes, light weight concrete

DOI: https://doi.org/10.15623/ijret.2015.0406029