# Members requiring design shear reinforcement: the angle `θ` in a truss model

## Eurocode 2 part 1-1: Design of concrete structures 6.2.3 (2)

The design of members with shear reinforcement is based on a truss model, see § 6.2.3 (1). The angle `θ` between the concrete compression strut and the beam axis perpendicular to the shear force should be limited.

## Recommendation

The recommended limits for cot`θ` in the struss model are given in Expression (6.7N).

1 ≤ cotθ ≤ 2,5 | (6.7N) |