Values of shear strength factor for joints with discontinuous column effectively confined on four and three vertical faces proposed by ACI 352R-02 Code are based on the judgment of relevant committee. Moreover, CSA A23.3-14 used the same shear strength coefficients for joints with continuous and discontinuous column. Therefore, beam-column joints tested by the authors and their colleagues were modeled numerically. Parametric study was performed to define the proper values. Results showed joint shear strength factor could be relaxed for roof wide beam-column joints effectively confined on four or three vertical faces. For CSA A23.3, it was suggested to use different coefficients for joints with continuous and discontinuous column. Values of 1.3 and 1.1 were proposed for joints with discontinuous column effectively confined on four and three vertical faces with conventional beams, respectively. Moreover, for ACI 352, values of 12 and 10 were suggested for these joints.
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