Abstract:The effect of through-reinforcing rebar on the bearing capacity of the shear connectors of the hybrid bridge is not considered when the Nishiumi algorithm is used for analyzing the ultimate bearing capacity of the joint sections of hybrid bridges under earthquake action; therefore, the analysis results of ultimate bearing capacity are considerably different from the actual results. A new analysis method has been proposed in this study with respect to the ultimate bearing capacity of the joint sections of a hybrid bridge under earthquake action. Further, the ultimate bearing capacities of the stud-type and the RC column-type shear connectors were obtained through analysis and calculation, and a new ultimate bearing capacity analysis test was designed. Using the design of the shear connector specimens, the seismic loading of the specimens, and the test arrangement, the ultimate bearing capacity of the shear connector in the joint sections of a hybrid bridge was analyzed under earthquake action. The analysis results exhibited that the proposed method can accurately analyze the ultimate bearing capacity of the shear connector in the joint sections of a hybrid bridge under earthquake action; the analysis results were almost the same as the measured results and exhibited a difference of less than 7%.