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设计了不同铺层方式、铺层厚度的CFRP/GFRP约束混凝土圆柱,采用单轴压缩试验研究约束柱的强度和延性性能,给出了约束柱的强度公式。研究表明,CFRP/GFRP约束混凝土柱改变了单一FRP约束混凝土柱破坏时的脆性特征,约束柱的强度和延性显著改善。
The CFRP / GFRP confined concrete cylinder with different lay-up and lay-up thickness was designed. The strength and ductility of the restrained column were studied by uniaxial compression test. The strength formula of constrained column was given. The results show that the CFRP / GFRP confined concrete columns change the brittleness characteristics of the single FRP confined concrete columns, and the strength and ductility of the confined columns are significantly improved.