Included code sections - 40.1 (partial), 40.2, 40.3, 40.4, 26.5.1.5, 26.5.1.6

Excluded code sections - 40.1.1, 40.5

See "Concrete "Core" Determination" for calculation of b.

τ _c is calculated per Table 19, using the equation in SP 24 (1983).

Longitudinal reinforcement designed by Minimum, Service and Strength designers is considered in the determination of A_s used in the calculation of τ _c .

100A_s / bd is taken as 0.15 minimum and 3.0 as a maximum in accordance with the "<=0.15" and "3.00 and above" in table 19.

v_c is calculated per the equation in SP:24 - 1983 to calculate values from Table 19.

For one-way shear in slabs, the design shear strength is increased by the depth factor in accordance with 40.2.1.1

For cross sections with multiple concrete mixes, the minimum f_cu is used.

The effective depth is determined by a cracked section analysis using the bending moment and axial force in place at time of the shear being investigated. If all of the reinforcement in the cross section is in compression, then the effective depth is calculated as the distance from the compression-most face to the furthest active reinforcement (in this case 100A_s / bd is taken as 0.15).

f_y is limited to 415 N/mm².

Stirrups are provided per 26.5.1.5, 26.5.1.6, and 40.4

In beams, at least minimum stirrups will be provided at all locations.

Maximum allowable shear stress is determined in accordance with Table 20. Slabs use 1/2 the values in Table 20 in accordance with 40.2.3.1.

Maximum spacing of stirrups along the span is the smaller of 0.75 d and 300 mm.

The spacing across the span is not considered.

Bent up bars and regions close to supports are not considered.

The anchorage of longitudinal bars is not checked.

Enhanced shear strength close to supports is not considered.

Beams of varying depth are not considered.

Net axial compression is considered per 40.2.2 if the "Consider Net Axial…" checkbox is checked.

Bottom loaded beams are not considered.