In order to investigate the structural behavior of perfobond rib shear connectors in the whole load-bearing process, 37 specimens of perfobond rib shear connectors, sorted into 11 groups, were tested in the failure test under static loading. The load-slip curve in each working region and failure mode was studied, the influences of the shear stiffness of concrete bars and the tension bearing capacity of perforated rebar on the load-slip relationship were analyzed using the normalization method, and a uniform calculation formula of load-slip relationship was established. The results show that the load-slip relationship in elastic region is linear, whose slope is mainly affected by the shear stiffness of the concrete bars. In elastoplastic and hardening regions, the load-slip relationship is a power law, whose coefficient is linear with the shear stiffness of concrete bars and the tension bearing capacity of steel bars. The rational diameter of the steel bars in the perfobond rib shear connector with concrete bars of diameter 60 and 45 mm, is 20 and 16 mm, respectively.%为研究PBL剪力键(perfobond rib shear connector)加载全过程的结构行为,对11组37个试件进行了静载破坏试验,研究了PBL剪力键在各工作阶段下的荷载-滑移曲线及破坏特征.采用归一化方法分析了混凝土榫抗剪刚度、贯穿钢筋抗拉能力对PBL剪力键各工作阶段荷载·滑移关系的影响,提出了加载全过程的荷载-滑移关系公式.研究结果表明:在弹性段内,PBL剪力键的荷载-滑移关系呈线性,曲线斜率与混凝土榫抗剪刚度有关,在弹塑性段和强化段内,荷载·滑移关系呈幂函数,其系数与混凝土榫抗剪刚度、贯穿钢筋抗拉能力成线性关系；开孔孔径45、60mm的PBL剪力键中,贯穿钢筋的合理直径分别为16、20 mm.
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