论文部分内容阅读
通过芳纶纤维复合材料(AFRP)加固砖砌墙体的抗剪试验,探讨了AFRP加固砖砌墙体的抗剪受力机理。对AFRP加固砖砌墙体进行应力分析,得到了AFRP断裂时加固墙体水平承载力的弹性力学解析解。理论分析和实验结果表明,AFRP可以较好地提高墙体的极限抗剪承载力和墙体的极限水平荷载,加固效果明显。当AFRP的加固量较大时,墙体在初步破坏后可发生应力重分布,加固后砖砌墙体的水平极限荷载得到了很大幅度的提高。导出的AFRP加固砖砌墙体的抗剪承载力公式的计算值与试验值吻合较好。
Shear test of brick wall reinforced by aramid fiber composite (AFRP) was carried out to discuss the shear stress mechanism of AFRP brick wall. The stress analysis of the AFRP reinforced brick wall was carried out, and the elastic mechanics analytical solution of the horizontal bearing capacity of the reinforced wall during the AFRP fracture was obtained. Theoretical analysis and experimental results show that AFRP can effectively improve the ultimate shear capacity of wall and the ultimate horizontal load of wall, and the reinforcement effect is obvious. When AFRP reinforcement is large, the wall may undergo stress redistribution after the initial failure, and the horizontal ultimate load of the brick wall after the reinforcement has been greatly improved. The deduced formulas of shear strength of AFRP reinforced brick wall are in good agreement with the experimental values.