Studies on behaviour of composite beams and columns with partial replacement of coarse aggregate by steel slag

Abstract

The cost of land and construction materials has been increasing in a consistent pace. A better utilization of both construction materials and cost will have more advantages regarding to savings in the floor area. The high rise buildings provide underground parking area in order to minimize the space scarcity in-order to save maximum floor area. The columns in these type of high rise buildings are larger in size and hence, it occupies more spaces in the floor area which results in increasing both construction and materials cost. In order to reduce the size of such columns, a special type of composite column known as concrete filled steel tubular is introduced. It is a special class of structural system where the properties of both steel and concrete are used up to their maximum advantage. When employed under favourable conditions, in-filled concrete inhibits the local buckling of the newlinetubular shell and steel casing confines the core tri-axially creating a confinement for better seismic resistance. newline newline