Abstract
Recently, mechanical anchorages are frequently used for high-strength and thick reinforcements because of congestion of reinforcements in beam-column joint. Many researchers have aggressively studied on the anchorage strength of beam reinforcement and the ultimate strength of R/C exterior beam-column joint, however, these structural performances could not be evaluated for various sorts of mechanical anchorages. In this paper, the authors propose the evaluation method of the anchorage strength of beam reinforcement on the basis of past experimental studies. Consequently, the authors clarify the design criteria on the ultimate strength of R/C exterior beam-column joint to ensure the ductility at the beam end.
