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用FRP加固的无筋砌体墙的面外弯曲和面内剪切性能经常受剥离破坏机理的控制。因而,需要定量确定基本的界面粘结滑移模型,这个模型能够描述FRP与砖砌体粘结界面性能。给出了29个采用外包和嵌入式加固FRP的拔出试验结果,试验变量包括:表面处理方式,几何尺寸,FRP(相对于节点和核心的)位置,基础节点的砌筑方法(砂浆快速干砌),玻璃纤维布的粘结方式,FRP种类。讨论了试验结果,初步给出了实际应用的建议。通过试验数据验证预测界面开裂剥离抗力的模型。该模型在外包和嵌入式加固技术应用中具有普遍的意义。这个一般性模型对所研究的29个拔出试验的极限强度具有很高的预测精度。
The out-of-plane bending and in-plane shear properties of FRP-reinforced unreinforced masonry walls are often controlled by the exfoliation failure mechanism. Therefore, it is necessary to quantitatively determine the basic interface bond slip model. This model can describe the interface properties between FRP and brick masonry. Twenty-nine pull-out test results using outsourced and embedded reinforced FRP are given. Test variables include: surface treatment method, geometry, location of FRP (relative to nodes and cores), foundation node masonry method (rapid mortar dry Bricklay), glass fiber cloth bonding method, FRP type. The test results are discussed and preliminary practical recommendations are given. The experimental data was used to verify the model predicting the cracking peeling resistance of the interface. This model has universal significance in outsourcing and embedded reinforcement technology applications. This general model has a very high prediction accuracy for the ultimate strength of the 29 pull-out tests studied.