2013 Volume 78 Issue 693 Pages 1949-1958
This paper extends a kinematic model named nine DOF model proposed by one of the authors which could predicts the moment capacity and moment at balanced failure of reinforced concrete beam-column joints to apply the model to exterior beam-column joints. Four failure mechanisms of exterior joints caused by moments on the joints are assumed and formulas for calculating moment capacities of exterior joints are derived based on the model and assumed failure mechanism. In the calculation, the yielding of longitudinal bars of beam and columns and lateral reinforcing bars in joints is assumed. The results from the proposed formula compared to experimental results gave accurate prediction.
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