The experimental study and analysis of cracking distribution of the concrete beams reinforced with bisteel

By means of the comparative experimental research on 12 concrete beams reinforced with cold-rolled ribbed bi-bar and cold-drawn bisteel wire,bisteel technology was demonstrated to improve the cracking distribution and reduce the cracking width,so as to take use of the steel products with high strength.Based on the theoretical analysis about cracking distribution of the beams under normal limiting condition,the formula about calculating cracking space were presented.The calculated results about cracking width relatively conform to the experimental ones.5figs.,2tabs.,8refs.