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在碳纤维和玻璃纤维混杂纤维布和预应力碳纤维加固混凝土梁试验研究成果的基础上,提出了用预应力混杂纤维加固混凝土结构的方法,并对预应力碳/芳纶纤维布加固梁的抗弯性能进行分析.利用预应力混杂纤维可以进一步提高纤维布的使用性能,减少变形并有效的抑制了裂缝的扩展,降低早期破坏的风险.混杂纤维的抗弯性能、延伸性能以及经济性均优于单一纤维.
Based on the experimental research results of carbon fiber and glass fiber hybrid fiber cloth and prestressed carbon fiber reinforced concrete beam, the paper proposes a method of reinforcing concrete structure with prestressed hybrid fiber and analyzes the bending resistance of prestressed carbon / aramid fiber reinforced concrete beam Performance of the hybrid fiber can be further improved using the pre-stressed hybrid fiber to reduce the deformation and effectively inhibit the expansion of the cracks and reduce the risk of early damage.The flexural properties, elongation properties and economic efficiency of hybrid fibers are better than Single fiber.