双钢筋混凝土梁裂缝分布的试验研究与分析

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

通过对比 12根冷轧带肋和冷拔钢丝双钢筋混凝土梁的试验研究 ,证明了采用双钢筋技术可以改善梁的裂缝分布 ,减小裂缝宽度 ,便于高强钢材的发挥 ,通过分析该类梁在正常使用状态下裂缝分布规律 ,提出了双钢筋混凝土梁平均裂缝间距的计算公式 ,使计算裂缝宽度更加符合实测值 图 5 ,表 2 ,参

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.