# Moment of resistance of a rectangular section in bending at the SLS by stress limitation, `M`_{ser}

_{ser}

## Eurocode 2 - Design of concrete sections Method b11

The moment of resistance of a rectangular section in bending at the SLS by stress limitation is calculated according to method b11.

The parameters needed for the design are the followings:

`E`_{s}- is the design value of the modulus of elasticity of the reinforcing steel, see § 3.2.7 (4);
`f`_{yk}- is the yield strength of the reinforcing steel, see § 3.2.2 (3)P;
`k`_{3}- is a Nationally Determined Parameter, see § 7.2 (5);
- •
- Concrete class: see Table 3.1;
`E`_{c,eff}- is the effective modulus of elasticity of concrete;
`k`_{1}- is a Nationally Determined Parameter, see § 7.2 (2);
`b`- is the width of the concrete cross-section;
`d`- is the effective depth of the concrete cross-section;
`d'`- is the distance from the external compressive concrete to the centre of gravity of the compression steel;
`A`_{sc}- is the cross sectional area of the compression reinforcement;
`A`_{s}- is the cross sectional area of the tensile reinforcement.

This application calculates
the serviceability moment of resistance `M _{ser}`
from your inputs.
Intermediate results will also be given.