摘要
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。
It carries out an experimental research on shear-resistant experiments of brick masonry walls reinforced by aramid fiber reinforced polymer （AFRP） . By using the experiments, a reinforcing mechanism of masonry wall reinforced by AFRP is studied and the elastic analysis solution under horizontal loading when AFRP split is given. The theoretical analysis and experiment result show that AFRP can better increase the ultimate shear-resistant and ultimate horizontal loads of masonry wall. The stress can distribute again, the ultimate loads of the reinforced brick masonry walls increase distinctly when the quantity of AFRP is increased. The calculation formula of shear-resistant carrying capacity proposed has good agreement with the experiment results.
出处
《建筑结构》
CSCD
北大核心
2008年第12期105-109,共5页
Building Structure
基金
国家高技术研究发展计划(863)项目(2004AA336010)
