To propose a design method for prefabricated composite dowel steel-concrete girders suitable for rapid con-struction,its typical cross-section,flexural and shear bearing capacity are studied.The effects of tension shear coupling and reinforcement configuration on the shear bearing capacity of CL and PZ joints were analyzed.Based on AASHTO and European standards,a simplified formula for calculating the ultimate flexural bearing capacity is proposed.A formula for calculating the shear bearing capacity is proposed based on the concept of hybrid steel-concrete cross section,and its ac-curacy is verified.It is found that the pull-out effect would weaken the shear bearing capacity of the joints.At least 2 stirrups should be installed in adjacent composite dowel,and the shear capacity of CL joints is better than that of PZ joints.The research results provide theoretical basis for the overall design of this new type of structure.
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