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受腐蚀及加固后钢筋混凝土结构的抗震性能是工程中非常关心的问题。本文介绍了课题组在这方面的研究成果。研究表明,受腐蚀钢筋混凝土构件的承载力、延性和耗能能力均有降低,降低程度与钢筋的锈蚀量有关。对于只用碳纤维布包裹的腐蚀构件,承载力提高不多,但延性和耗能能力有较大提高。对于用碳纤维布和角钢复合加固及碳纤维布和加大截面复合加固的腐蚀构件,承载力、延性和耗能能力均有所提高。
The seismic performance of reinforced concrete structures after being corroded and reinforced is a very concerned issue in the project. This article introduced the group’s research results in this area. The results show that the bearing capacity, ductility and energy dissipation capacity of corroded reinforced concrete members all decrease, which is related to the amount of corrosion of reinforced bars. For the corrosion component wrapped only with carbon fiber cloth, the bearing capacity can not be improved much, but the ductility and energy dissipation ability are greatly improved. For carbon fiber cloth and angle steel composite reinforcement and carbon fiber cloth and increase the cross-section of the composite reinforcement of the corrosion-resistant components, bearing capacity, ductility and energy consumption have increased.