Use expansion of Ductile Fiber Reinforced Cementitious Composite

考虑抗震性能和耐久性是基础设施结构维护的必要条件。为此，对钢筋混凝土梁模型进行了改造试验和分析，以建立对现有梁进行u型缠绕加固的设计方法。具体来说，我进行了耐久性试验、剪切试验、纯弯曲试验和有限元非线性分析。结果证明了DFRCC缠绕加固钢筋混凝土梁的有效性。最后提出了以DFRCC缠绕控制裂缝宽度增加附加抗剪能力为重点的实用设计方程。

Consideration for seismic perfomance and durability is necessary for the maintenance of the infrastructure structure. Therefore retrofit tests and analysis has been conducted with RC beam models in order to establish strengthening design procedure to existing beam by DFRCC (Ductile Fiber Reinforced Cementitious Composite) U-shaped winding.Specifically, I carried out durability test, shear test pure bending test and Finite element nonlinear analysis. As a result, I proved the usefulness of the reinforcing effect of RC beam by DFRCC winding. Furthermore practical design equation is conclusively proposed focusing on additional shear capacity increase due to crack width control by DFRCC winding.