22.6 Two-Way Shear Strength
|vn = vc||(220.127.116.11)|
|vn = vc+ vs||(18.104.22.168)|
(b) No portion of the column cross section is closer to a discontinuous edge than four times the slab thickness h
(c) Effective prestress fpc in each direction is not less than 125 psi
where αs is given in 22.214.171.124; the value of fpc is the average of fpc in the two directions and shall not exceed 500 psi; Vp is the vertical component of all effective prestress forces crossing the critical section; and the value of shall not exceed 70 psi.
|Type of shear reinforcement||Maximum vc at critical sections defined in 126.96.36.199||Maximum vc at critical section defined in 188.8.131.52|
|Headed shear stud reinforcement||(c)||(d)|
|Type of shear reinforcement||Maximum vu at critical sections defined in 184.108.40.206|
|Headed shear stud reinforcement||(b)|
where Av is the sum of the area of all legs of reinforcement on one peripheral line that is geometrically similar to the perimeter of the column section, and s is the spacing of the peripheral lines of shear reinforcement in the direction perpendicular to the column face.
where Av is the sum of the area of all shear studs on one peripheral line that is geometrically similar to the perimeter of the column section, and s is the spacing of the peripheral lines of headed shear stud reinforcement in the direction perpendicular to the column face.
where ϕ corresponds to tension-controlled members. However, Mv shall not exceed the least of (a) through (c):
(a) 30 percent of Mu in each slab column strip
(b) Change in Mu in column strip over the length ℓv
(c) Mp as given in 220.127.116.11