Abstract
The aim of this research is to make a design method for the beam-column joints using coupled columns. This paper is mainly focused on the behavior of the joints after the yield point. Two main factors, shear resistance of dowels and embedding to beam with columns, resist to moment, but the limit state of the joints is dominated by dowels. By considering dowel’s shear resisting properties after yield point, the limit state of the joints can be predicted. The results showed good correspondences with the theory. In addition, the availability of the joint was verified by a series of experiment.