# Design punching shear resistance of a slab without shear reinforcement: the values of `C`_{Rd,c}, `v`_{min} and `k`_{1}

_{Rd,c}

_{min}

_{1}

## Eurocode 2 part 1-1: Design of concrete structures 6.4.4 (1)

The design punching shear resistance `v _{Rd,c}` [MPa] may be calculated as follows:

v = _{Rd,c}C _{Rd,c}k (100 ρ _{l}f)_{ck}^{1/3} + k _{1}σ ≥ (_{cp}v + _{min}k _{1}σ)_{cp} | (6.47) |

## Recommendation

In this calculation of the design punching shear resistance, the recommended value for `C _{Rd,c}` is 0,18/

`γ`, that for

_{C}`v`is given by Expression (6.3N) and that for

_{min}`k`is 0,1.

_{1}v = 0,035 _{min}k^{3/2} f_{ck}^{1/2} | (6.3N) |