To study the shearing performance of concrete exterior beam-column joint with HRB400E reinforcement

we designed nine specimens based on orthogonal test method and conducted shearing test

which takes concrete strength

horizontal reinforcement anchorage arrangement

and reinforcement ratio as the main research parameters. Test results show that beam end bending failure and joint core shear failure were common failure modes of specimens

but bending anchorage arrangement could effectively reduce the number of cracks in the joint core. Among the three parameters

concrete strength had the most influence on the shearing deformation of the joint core

and as the concrete strength grade increased

the shearing deformation angle at the initial crack decreased. The anchorage arrangement of the horizontal bars had the most influence on the shearing deformation of joint core at the ultimate state

and shearing deformation angle reached the minimum value when 90° bending anchorage arrangement was adopted. The ratio of longitudinal reinforcement to beam had the greatest influence on the horizontal shearing force of the joint

and the horizontal shearing force increased with the increase in the reinforcement ratio. The primary and secondary relations of the parameters and corresponding changing trends were analyzed by using the orthogonal test principle combined with the mathematical statistics theory of range and variance.