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Strength reduction factors ϕ is determined according to using ACI Table 21.2.1.
Nominal shear strength Vn of beam-column joint should be calculated in accordance with ACI Table 15.4.2.3.
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Width of each transverse beam is at least three-quarters of the width of the column face into which the beam frames
Transverse beams extend at least one beam depth h beyond the joint faces
Transverse beams contain at least two continuous top and bottom bars satisfying ACI 9.6.1.2 and No. 3 or larger stirrups satisfying ACI 9.6.3.4and 9.7.6.2.2.
Effective cross-sectional area within a joint, Aj, is equal to joint depth times effective joint width. Joint depth is the overall depth of the column, h, in the direction of joint shear considered. If the beam is wider than the column, effective joint width is the overall width of the column. If the column is wider than the beam, effective joint width should not exceed the lesser of beam width plus join depth and Twice the perpendicular distance from longitudinal axis of beam to nearest side face of the column. Effective cross-sectional area within a joint, Aj, is illustrated in ACI Fig. R15.4.2.
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According to ACI 18.4.4.7.3, Strength reduction factors ϕ is determined according to using ACI Table 21.2.1.
According to ACI 18.4.4.7.4, Nominal shear strength Vn of beam-column joint should be calculated in accordance with joints of special moment frames.
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Strength reduction factors ϕ is determined according to using ACI Table 21.2.1.
According to ACI 18.8.4.3, Nominal shear strength Vn of beam-column joint should be calculated in accordance with ACI Table 18.8.4.3.
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