Section 10.5.1 Minimum Reinforcement of Flexural Members (Non Prestressed)
Equation 10-3 and the 200 bwd/fy criteria are implemented
Equation 10-3 is calculated using the maximum fc’, minimum fy, and maximum d (of all bars on the appropriate face).
bw is taken the core width (see "Concrete "Core" Determination"). If the core width is zero (there is no core), then bw is taken as the width of the section.
The bending strength of the section is designed to be at least 1.2 Mcr. This will only control in odd circumstances such as where the specified cover is extremely large.
