CFRP加固钢筋混凝土梁受弯性能的试验研究

Experimental Study on Bending Behavior of Reinforced Concrete Beams Strengthened with CFRP

对4根碳纤维布补强加固的钢筋混凝土梁进行加载试验,研究了碳纤维布对钢筋混凝土梁抗弯性能的影响和作用。试验表明利用碳纤维增强塑料加固可有效提高受弯构件的承载能力,并能抑制裂缝开展和提高构件的刚度和延性,同时对受弯承载力进行了理论分析,试验数据与理论分析吻合较好。

Through experiments of 4 reinforced concrete beams strengthened with carbon fiber reinforced polymer (CFRP), this paper researches that CFRP has the influence and actions on the characteristics in bending of reinforced concrete beams. The experiments show that using CFRP can effectively increase bending capacity of flexural member, and can repress the enlargement of crack and can increase the stiffness and ductility of member. While theoretical analysis is developed, it conforms well to the experimental results. The research results will be helpful for the practical design.