In the extremely hot and humid marine environment in the South China Sea, the application of Cr alloy steel bars and coral aggregate concrete (CAC) overcomes the problems of low durability of ordinary reinforced concrete structures and lack of construction materials, accelerates the construction of reefs. The bond-slip performance between CAC and Cr alloy steel bars is the basis of their cooperative work. Considering the complex composition of the microstructure and the structure of the interface of CAC, and the excellent corrosion resistance of Cr alloy steel bars, the bond properties between Cr alloy steel bars and CAC are different from those of ordinary reinforced concrete. Therefore, in this study, the influence of the corrosion ratio of the Cr alloy steel bar was considered, the corrosion of steel bars was accelerated via electricity, and a pull test was conducted to study the bond-slip constitutive relationship between the corroded Cr alloy steel bar and CAC. Through experimental research and theoretical analysis, the distribution law of the bond stress and slip value between the Cr alloy steel bar and CAC along the anchorage length was obtained under different corrosion ratios. The transfer mechanism of the bond stress and the difference in the bond anchorage position between the Cr alloy steel bar and CAC before and after corrosion were analyzed. A bond anchorage position function model reflecting the actual bond distribution law under different corrosion ratios was proposed and the bond-slip constitutive model was established, providing a reference for island construction in the South China Sea.

在南海极端炎热潮湿的海洋环境中，Cr合金钢筋和珊瑚骨料混凝土（CAC）的应用克服了普通钢筋混凝土结构耐久性低的问题而建筑材料的缺乏，加速了珊瑚礁的建设。CAC和Cr合金钢筋之间的粘结滑移性能是它们协同工作的基础。考虑到CAC的显微组织和界面结构组成复杂，以及Cr合金钢筋优异的耐腐蚀性能，Cr合金钢筋与CAC的结合性能不同于普通钢筋混凝土。因此，本研究考虑Cr合金钢筋腐蚀率的影响，通过电加速钢筋的腐蚀，通过拉力试验研究腐蚀Cr合金之间的粘结-滑移本构关系。钢筋和 CAC。通过实验研究和理论分析，得到了不同腐蚀比下Cr合金钢筋与CAC之间的结合应力和滑移值沿锚固长度的分布规律。分析了Cr合金钢筋与CAC腐蚀前后结合应力的传递机制及结合锚固位置的差异。提出了反映不同腐蚀率下实际粘结分布规律的粘结锚固位置函数模型，建立粘结-滑动本构模型，为南海海岛建设提供参考。分析了Cr合金钢筋与CAC腐蚀前后结合应力的传递机制及结合锚固位置的差异。提出了反映不同腐蚀率下实际粘结分布规律的粘结锚固位置函数模型，建立粘结-滑动本构模型，为南海海岛建设提供参考。分析了Cr合金钢筋与CAC腐蚀前后结合应力的传递机制及结合锚固位置的差异。提出了反映不同腐蚀率下实际粘结分布规律的粘结锚固位置函数模型，建立粘结-滑动本构模型，为南海海岛建设提供参考。