To investigate widely applicable shear capacity calculation methods of reinforced concrete column-steel beam (RCS) hybrid connection

this study analyzed the shear failure experimental data of RCS connections in recent years. The experimental results were compared with the calculation results of Chinese specification

Nishiyama method

Parra method

and ASCE guideline

and the parametric applicability of each method was discussed. The comparison results showed that all the four methods had engineering value. The minimum discreteness of the results of Parra method was obtained

and the calculation process of Chinese specification was the simplest. The results of parametric study showed that all the four methods were suitable for connections with different stirrup ratios and positions. However

conservative estimates were obtained for specimens with small axial load ratios (from 0 to 0.2) and column-through connections. For the Chinese specification

the predicted strength of connections with concrete strength higher than 60 MPa was unsafe

while the predicted strength of connections with transverse beams was conservative. Therefore

it is suggested to introduce concrete strength coefficient and confined coefficient of transverse beam into the equation considering the influence of these two factors.