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针对氯离子侵蚀环境下碳纤维加固钢筋混凝土结构耐久性的问题进行了实验研究,试验结果和理论分析表明,采用碳纤维加固混凝土短柱是可行的,加固后的混凝土短柱的耐久性指标都得到了不同程度的提高,但是不同的加固防护形式,对混凝土短柱的耐久性指标有较大的影响.与此同时,荷载对混凝土短柱的耐久性性能也有一定影响,这主要是因为荷载的存在加剧了混凝土内部微裂缝的发展,同时对碳纤维加固层有一定的负面影响.
Experimental study on the durability of reinforced concrete structures strengthened by carbon fiber under chloride ion erosion environment is carried out. The experimental results and theoretical analysis show that it is feasible to use carbon fiber to reinforce concrete short columns, and the durability index of reinforced concrete short columns is obtained However, the different reinforcement forms have a great influence on the durability index of concrete short columns, meanwhile, the load also has an impact on the durability of concrete short columns, mainly because of the existence of load Exacerbated the development of microcracks inside the concrete, while carbon fiber reinforced layer has a certain negative impact.