2.6.4.4 Specification of a reinforcement

Specification of a reinforcement

At the top surface of the plate, we select a reinforcement based on rebars with a diameter d_s of 12 mm at a distance l_s of 10.0 cm for both directions.

The following provided reinforcement is thus obtained:

$\text{prov} a_{s1,-z} = \frac{{d_s}^2}{4} · \pi · \frac{100 \mathrm{cm}/\mathrm{m}}{l_s} = \frac{{\left(1.2 \mathrm{cm}\right)}^2}{4} · \pi · \frac{100 \mathrm{cm}/\mathrm{m}}{10.0 \mathrm{cm}} = 11.31 {\mathrm{cm}}^2/\mathrm{m}$

These values are entered in the Longitudinal Reinforcement tab of window 1.4 Reinforcement or selected with the [Rebars] button (see Figure 2.105).

With this reinforcement diameter, the following centroids of the concrete cover are obtained:

Thus, the effective depth for the individual reinforcement directions is determined as follows:

$d_{1,-z} = h - d_1 = 20 - 3 = 17\text{ cm }$

$d_{2,-z} = h - d_2 = 20 - 4.2 = 15.8\text{ cm }$