Flexural Reinforcement Capacity
If the full development length of the reinforcement bars cannot be satisfied due to the footing's dimension the bar capacity is reduced by increasing the required flexure reinforcement area up to a maximum of 50%. The increase is calculated as:
The required reinforcement area is increased to account for the reduction in capacity due to the reduced development length. The provided reinforcement ratio is based on the reinforcement area before it is modified to account for the development length. The area of reinforcement is increased regardless of whether it is required for temperature/shrinkage or to satisfy flexure capacity requirements. The reinforcement area is only increased if the provided development length can be larger than ½ the required development length.