Abstract
A method is proposed to analyze beam-collapse R/C interior joints under seismic actions. Stresses along the periphery of the joints are modelled as shown in Fig. 2. Shear resistant mechanisms are considered as shown in Figs. 3 through 12. The tensile stress of horizontal shear reinforcement in a joint shall be the maximum when the bond of the top beam bars is at the border of enough or not.
