在反复循环荷载下钢筋与混凝土之间粘结滑移研究的基础上，选择了比较合理的模型并对其进行了修正。根据修正的粘结滑移模型，对反复循环荷载下拱坝横缝钢筋滑移量、钢筋应力、粘结应力、钢筋受力段长度的变化规律进行了计算分析，初步揭示了在地震荷载作用下拱坝横缝钢筋的工作特性，并对拱坝横缝钢筋的工程应用提出了一些建议。

On the basis of study of interaction between steel bar and concrete under reversed cyclic loading, a reasonable model was adopted and modified. The calculations and analyses on the regulatities of slip, stress and bond length of steel bar of joint reinforcement of an arch dam were conducted by the modified bondslip model. The working characteristics of joint reinforcement of an arch dam under seismic loading are preliminarily revealed and some suggestions about the appliation of joint reinforcement provided.