# Lightweight concrete members not requiring design 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 11.6.1 (1)

The design value of the shear resistance of a lightweight concrete member without shear reinforcement `V _{lRd,c}` is given by:

V = [_{lRd,c}C _{lRd,c}η _{1}k (100 ρ _{l}f)_{lck}^{1/3} + k _{1}σ] _{cp}b _{w}d ≥ (η _{1}v + _{l,min}k _{1}σ) _{cp}b _{w}d | (11.6.2) |

## Recommendation

The recommended value for `C _{lRd,c}` is 0,15/

`γ`, that for

_{C}`v`is 0,028

_{l,min}`k`

^{3/2}

`f`

_{lck}^{1/2}and that for

`k`is 0,15.

_{1}