对FRP包覆筋进行了轴向拉伸破坏实验.实验测试分析表明, 金属芯和非金属包覆层之间的机械变形性能耦合, 使整个FRP筋在增强混凝土构件中呈现良好的双线性行为.实验所得的混杂FRP棒材应力-应变曲线的形状与理论曲线基本吻合, 为进一步包覆层优化设计和在混凝土工程中的应用提供理论基础.
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