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对已达极限承载能力的钢筋混凝土梁在利用碳纤维复合材料施加表面预应力时的挠曲行为的试验研究结果进行了介绍。在试验研究过程中,对钢筋混凝土梁在应用碳纤维复合黏结材料施加各种预应力时梁的挠曲强度、变形、裂缝行为及破坏模式等进行了分析。研究结果显示,应用碳纤维复合黏结材料对钢筋混凝土梁的一些较大的裂缝进行复原对结构的正常使用非常有效。
The results of the experimental research on the flexural behavior of RC beams with ultimate load carrying capacity under the prestress of carbon fiber composites were introduced. In the course of experimental research, the flexural strength, deformation, fracture behavior and failure mode of the beam were analyzed when various prestressed carbon fiber composite bonded materials were applied to the reinforced concrete beam. The results show that the use of carbon fiber composite bonding materials on the reinforced concrete beams to restore some of the larger cracks on the normal use of the structure is very effective.