通过再生混凝土梁式试验,得到了不同钢筋锈蚀率下再生混凝土与钢筋的平均黏结应力-滑移曲线,分析了钢筋锈蚀率对不同直径钢筋与再生混凝土之间黏结滑移性能的影响。研究结果表明:钢筋锈蚀率为0%和1%时,试验梁发生劈裂破坏;锈蚀率为9%时,发生钢筋拔出破坏;锈蚀率为3%和6%时,试件钢筋拔出和混凝土劈裂破坏共同发生;锈蚀钢筋与再生混凝土间黏结应力随钢筋锈蚀率的增加而先增大后减小,锈蚀率为1%时黏结应力为最大;锈蚀率为0%和1%时,黏结应力峰值集中在加载端附近,随锈蚀率增大,黏结应力峰值靠近自由端;随锈蚀率的增加,滑移增幅变大;依据试验结果,拟合了黏结应力沿锚固区分布规律的位置函数,结合平均黏结应力-滑移本构方程,建立了可反映不同位置锈蚀钢筋再生混凝土黏结滑移的本构方程。 The average bond stress - slip curve between regenerated concrete and rebars under different rebar corrosion rates was obtained through the beam test of recycled concrete, and the influence of rebar corrosion rate on the bond slippage between different diameter rebar and recycled concrete was analyzed. The results show that when the corrosion rate of steel bar is 0% and 1%, the test beam is splitting and destroying; when the corrosion rate is 9%, the steel bar is pulled out and destroyed; when the corrosion rate is 3% and 6% And the concrete splitting and breaking together. The bond stress between the corroded rebar and recycled concrete first increases and then decreases with the increase of the corrosion rate of the rebar, and the cohesive stress is the largest when the corroded rate is 1%. When the corrosion rate is 0% and 1% , And the peak value of the bond stress is concentrated near the loading end. As the corrosion rate increases, the peak value of the bond stress is close to the free end. With the increase of the corrosion rate, the slip increase increases. According to the test results, the distribution of the bond stress along the anchorage zone Based on the position function and the average bond stress-slip constitutive equation, the constitutive equation that can reflect the bond-slip of corroded rebar recycled concrete at different positions is established.