内嵌筋材加固混凝土梁弯曲性能研究

Study on flexural strengthening of RC beams with near surface mounted steel

探讨了内嵌碳纤维筋和内嵌螺旋肋钢丝加固混凝土构件对比试验研究,并分析了不同筋材、加固量对被加固构件抗弯性能的影响。结果表明:两种加固方法均能大幅度提高被加固构件的极限承载力,改善梁的裂缝开展情况,但内嵌碳纤维筋加固方法易于发生黏结破坏,螺旋肋钢丝的黏结效果较好,且在经济性上明显优于碳纤维材料,更利于在工程实际中推广应用。

Discusses the concrete construction components which embedded CFRP and embedded with spiral rib steel for strengthening, analysis the different reinforcement material and reinforcing quantity to be strengthened beam bending.The results show that the two methods can improve the ultimate bearing capacity of reinforced components,the situation in developing.While, when spiral rib steel have a good bonding effect, embedded CFRP is easy to have the caking to destroy.Results show spiral rib steel is more advantageous to carbon materials and engineering application.