Strengthening The Performance Of Reinforced Concrete Columns Using Welded Wire Reinforcement – An Experimental Investigation

Abstract

An experimental investigation was carried out to study the behaviour of normal-strength concrete confined by welded wire reinforcement as transverse reinforcement (WWR). WWR eliminates some of the detailing problems inherent in reinforced concrete (RC) construction, resulting in easier and faster construction, with better economy and quality control. The confinement provided by WWR was investigated by their strength characteristics by conducting test on 16 columns. The specimens were tested under axial loading. The parametric study includes effect of volumetric ratio and spacing of WWR as well as distribution of longitudinal reinforcement. The results indicate that Performance of welded wire reinforced columns with 1% steel has minimum deformation than conventional columns, whereas, with 2% steel has deformation greater than conventional columns. Experimental ultimate load of SW1@200 c/c showed 21% increase over calculated theoretical ultimate load. Experimental young’s modulus determined by second order polynomial equation, is lesser than calculated theoretical young’s modulus.