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In calculating 1/ the influence of the reinforcement will be ignored since, if 4.3.2.3(1) straight bars are used, they will not extend d + Zbnet beyond the critical section.

V = 0.35 x 1.075 x 1.2 x 2750 x 525/1000 = 652 kN Eqn 4.18

V > 1/ hence no requirement for shear reinforcement

2.7.5.2 Punching shear

The critical perimeter is shown in Figure 2.12. Design load on base = 1801 kN Length of critical perimeter u = [4 x 300 + ir (2 x 1.5 x 525)]/1000 = 6.15 m

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