BFRP加固钢筋混凝土圆柱的水平极限承载力分析

Analysis of Ultimate Lateral Bearing Capacity of RC Columns Strengthened with BFRP

为研究玄武岩纤维布加固不同长细比钢筋混凝土圆柱的水平极限承载力,在配筋率、轴压比等因素相同的条件下,利用有限元软件ABAQUS对不同长细比和不同加固层数的25根钢筋混凝土圆柱进行模拟分析.结果表明,通过外贴玄武岩纤维布可以有效提高钢筋混凝土圆柱的水平极限承载力,且与粘贴层数有密切关系.通过有限元分析结果对比,得出了一定长细比范围内玄武岩纤维布加固钢筋混凝土圆柱的最佳约束层数.

In order to research the ultimate lateral bearing capacity of the reinforced concrete columns with basalt fi- ber reinforced polymer（BFRP） which are based on different slenderness ratio. The twenty - five reinforced concrete columns that with different slenderness ratio and reinforcement layers were analyzed by ABAQUS in the same stirrup ratio and axial compression ratio etc. The analysis results showed that the ultimate lateral bearing capacity of the re- inforced concrete columns could be improved by bonded of external BFRP which influenced by bonding layers. The best reinforcement layers of the reinforced concrete columns that range of the certainly slenderness ratio was identi- fied by analyzing the results of finite element calculation.