Abstract
In this paper some load-resistant models of Lrshaped beam-column joints on the top story of a building frame are proposed based on experimental research results. It is presented in the models that, for the external corner joints, not only shear mechanisms but flexural mechanisms also affect the joint strength. The flexural strength of the joint is determined by the anchorage strength of beam longitudinal reinforcement when the frame is subjected to closing moment. Subjected to opening moment it is influenced by transverse reinforcement in the joint and the projected development length of the beam or column longitudinal reinforcement. The calculated load capacities of the joints were compared with the experimental results, and good agreement was obtained.
