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传统的桥墩病害一般采用钢筋混凝土增大截面加固法,但恒载增加量较多,对桩基和承台受力不利。而碳纤维棒高强度聚合物纤维加固法,用高强碳纤维棒作为受力配筋,具有轻质高强的特点,通过提高原构件的配筋量与桥梁的整体性,从而相应提高结构构件的刚度和承载力。以聚合物砂浆作为黏结剂和碳纤维棒的保护层,不仅具有良好的黏结性能,而且还具有抗腐蚀、耐高温特点;具有施工工艺要求低、施工质量易于控制、经济效益好等特点。
The traditional bridge piers commonly used reinforced concrete to increase the cross-section reinforcement method, but the increase in the amount of more dead load on the pile and bearing adverse. The carbon fiber rod high strength polymer fiber reinforcement method, with high strength carbon fiber rod as a force reinforcement, with the characteristics of light weight and high strength, by increasing the original component of the amount of reinforcement and the integrity of the bridge, thus correspondingly increase the stiffness of structural members and Carrying capacity. Polymer mortar as a binder and carbon fiber rod protective layer, not only has good bonding properties, but also has anti-corrosion, high temperature characteristics; with low construction requirements, construction quality and easy control, economic benefits and so on.