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近年来,碳纤维布以其高强、轻质、耐磨、耐腐蚀等优点,已经在混凝土结构的抗震加固领域得到了应用,并取得了一定的进展。碳纤维布加固后的钢管混凝土柱的抗震研究虽然鲜有报道,但已有学者通过数值计算、有限元模拟、以及试验分析等方法进行了研究,证明经碳纤维布加固过后的钢管混凝土柱的承载力和刚度以及延性都有提高,其整体抗震性能得到了改善。本文主要针对碳纤维布加固钢管混凝土柱后的抗震性能研究现状,论述其抗震加固的原理、加固后的抗震性能特点以及展望,希望能为后续研究提供一些建议和帮助。
In recent years, carbon fiber cloth with its advantages of high strength, light weight, wear resistance, corrosion resistance, etc., has been applied in the field of seismic strengthening of concrete structures and made some progress. Though few reports have been reported on the seismic behavior of concrete-filled steel tubular columns with CFRP sheets, some scholars have conducted numerical studies, numerical simulations and experimental analyzes to prove the bearing capacity of the CFST columns strengthened with CFRP sheets And stiffness and ductility have improved, the overall seismic performance has been improved. In this paper, the research status quo of seismic performance of CFST columns strengthened with carbon fiber reinforced plastic (CFST) columns is expounded. The principle of seismic strengthening, the characteristics and prospects of seismic performance after strengthening are discussed. Hopefully, some suggestions and aids can be provided for the follow-up study.