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碳纤维与钢板复合加固钢筋混凝土梁是一种新型的加固方法。通过对1根原梁和6根不同方式加固梁进行的抗弯性能对比试验表明,复合加固对提高抗弯承载力和延性均优于碳纤维和粘钢加固,且初始荷载对其抗弯承载力影响不大。此外,根据试验结果分析了复合加固梁的破坏模式和提高抗弯承载力的限值,分析表明:复合加固梁的抗弯承载力要远远超过混凝土加固规范规定的40%提高幅度限值的要求,且复合加固还能满足其使用性能。因此,对于需要提高较大幅度抗弯承载力且满足使用性能的受弯构件,当负载较大时建议采用复合加固。
Carbon fiber reinforced with steel plate reinforced concrete beam is a new type of reinforcement method. The comparison test of the bending performance of one reinforced beam with one original beam and six different ways shows that the composite reinforcement is better than the carbon fiber and the steel plate in improving the flexural strength and ductility of the beam, and the influence of the initial load on the flexural capacity Not big. In addition, the failure modes and the limits of increasing the flexural capacity are analyzed based on the experimental results. The analysis shows that the flexural capacity of the composite reinforced beam far exceeds the 40% increase limit of the concrete reinforcement specification Requirements, and composite reinforcement but also to meet their performance. Therefore, for the flexural members that need to increase the flexural capacity and meet the serviceability, recombination reinforcement is recommended when the load is large.