FRP筋外观形态对黏结性能影响研究

Research on Influence of FRP Reinforcement Appearance on Adhesive Strength

摘要:

FRP筋和混凝土之间良好的协同工作性能，是发挥其各自材料优势的前提，黏结滑移性能是表征筋材和混凝土共同工作性能的重要体现，若二者之间发生黏结退化或失效，可能导致构件的变形过大。对FRP筋增强混凝土的黏结滑移性能进行试验研究，分析筋材螺旋间距、螺旋深度和筋材表面处理形式3个参数对黏结滑移性能的影响。为FRP筋材增强混凝土构件提供技术参考依据。

Abstract:

The good synergistic performance between FRP reinforcement and concrete is a prerequisite for giving full play to the advantages of the respective materials. The bond slip performance is an important manifestation of the joint working performance of reinforcement and concrete. If there is bond degradation or failure between the two, it may lead to excessive deformation of the component. Experimental research is conducted on the bond slip performance of FRP reinforced concrete to analyze the effects of three parameters such as spiral spacing, spiral depth, and surface treatment form of the reinforcement on the bond slip performance, which provides the technical basis for FRP reinforcement of concrete components.