In order to investigate the static and cyclic tension behavior of post-installed rebar along with cement-based adhesive that is adopted after exposure to high temperature, a three-phase experimental program has been carried out and two typical embedment depths, 10d and 15d are designed. The surfaces of specimens are firstly heated up to 800°C, and then the residual strength at different temperatures of cement-based adhesive has been studied by consequent static pull-out tests. Experimental results show that the tensile strength has a significant reduction at elevated temperatures compared with that of room temperature. The cement-based adhesive has almost lost its full bond strength when the temperature exceeds 350°C. Finally, the bond performance of cement-based adhesive under cyclic loading has been further tested and analyzed. It is found that both 10d and 15d specimens have failed abruptly with rebar pull-out. The employment of long embedment depth has been verified to be an effective method to improve the bond performance of cement-based adhesive under static and cyclic loading. Static numerical investigation indicates that the bond stress distribution is not uniform along the embedment length of post-installed rebar at different temperatures of cement-based adhesive. The temperature-dependent tensile strength prediction has also been obtained based on the experimental data.

为了研究高温下使用后安装的钢筋以及水泥基胶粘剂的静态和循环拉伸行为，已进行了一个三相实验程序，并给出了两种典型的埋深10 d和15 d被设计。首先将样品表面加热至800°C，然后通过随后的静态拉力试验研究了水泥基胶粘剂在不同温度下的残余强度。实验结果表明，与室温相比，高温下的拉伸强度明显降低。当温度超过350℃时，水泥基粘合剂几乎失去了其全部粘合强度。最后，对水泥基胶粘剂在循环载荷下的粘结性能进行了进一步测试和分析。发现10 d和15 d钢筋拔出后，试样突然失效。事实证明，采用长埋入深度是提高水泥基胶粘剂在静态和循环载荷下粘结性能的有效方法。静态数值研究表明，在水泥基胶粘剂的不同温度下，粘结应力沿安装后钢筋的包埋长度分布不均匀。还基于实验数据获得了取决于温度的抗张强度预测。