True Bar Depth Check

After the beam line has been designed for both flexure and shear (and thus all reinforcing located), the true flexural bar depth is checked against the bar depth resulting from the user-defined value of cover to center of bars specified in the Design Criteria dialogue (see Figure below). This is done to confirm that the user-defined value of bar depth is sufficiently conservative. If the bar depth resulting from the user input is larger than the true bar depth a design warning is generated.

The true reinforcement depth is calculated as follows:

For one layer of bars:

d_{True} = c_{c} + d_{b (Transvers)} + \frac{d_{b (Longitudinal)}}{2}

Equation 5-7

For second layers of bars (farther away from the tension surface):

d_{True} = c_{c} + d_{b (Transvers)} + d_{b (Longitudinal)} + \frac{S_{\min,Vertical}}{2}

Equation 5-8

where s_min,Vertical is per Section 5.2.3

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True Bar Depth Check

True bar depth check