Abstract: Semi-rigid space end-plate connections of weak-axis with channel components are new end-plate connections form. The finite element analysis of semi-rigid space beam-to-column joints with channel components under cyclic loading was carried out in order to investigate its seismic performance， and the mechanical characteristics， joint stiffness and energy dissipation capacity of weak-axis joints under cyclic loading were analyzed when its strong-axis joint was yielded under the static load. The results showed that the weak-axis joint with channel components has a good energy dissipation capacity， and the loading of strong-axis has almost no effect on the weak-axis connections’ capacity property but exerts some effect on the weak-axis connections’ hysteretic behavior. In accordance with the results of the finite element analysis， the curvilinear hysteretic model expression of weak-axis joints with channel components was modified， which may provide reference for practical projects.

Key words: channel components, space joint, semi-rigid, mechanical characteristics, hysteretic behavior