Experimental Investigation of Industrial by - Products Concrete Filled Mild Steel Tubular Columns with GFRP Wrapping
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2016, Vol 4, Issue 5
Abstract
Concrete filled steel tubular columns are becoming widely used in engineering. Composite structural members provide a cost-effective alternative to traditional structural steel or reinforced concrete columns. The use of composite columns in different areas of construction is becoming an attractive solution. Concrete-filled steel tube columns provide high strength, high ductility, and high stiffness. In addition to these advantages, the steel tubes surrounding the concrete columns eliminate permanent formwork which reduces construction time. Glass fibre reinforced polymer (GFRP) - confined concrete filled tubular composite columns have been recently introduced as a wrapping technique for structural steel columns. These techniques are becoming very attractive trend for industrial and high-rise buildings. The aim of the project is to study the axial behaviour of mild steel tubular column wrapped with GFRP sheets using vinyl ester resin and to find the load–deformation relationship of CFT columns. The experimental investigation also involves the replacement of cement and the fine aggregates with the 40% of fly ash and 50% of copper slag respectively, further it incorporates addition of silica fume at 6% and steel fibre at 0.5% which is to be maintained constantly for all mixes recommended for confined concrete tubular section. At M30 grade of concrete with constant water cement ratio, tests are to be conducted to find the axial compression behaviour of stubbed columns, effect of using a GFRP retrofitting system, ductility factor, and confinement ratio. A eleven stub columns are to be casted totally, consisting of M30grade of concrete mix will be considered for the investigation. Finally, the experimental results will be compared with the analytical results obtained from Ansys software.
Authors and Affiliations
A. Remi Hudson, N. Sakthieswaran, G. Shiny Brintha, O. Ganesh Babu
Keywords
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