The soil pressure analysis of a spread footing is performed using a closed form solution as described in this section. In all cases the following analysis features are performed:

• Factored supported column self-weight is included in analysis loading.
• Factored concrete footing self-weight is included when checking acceptable soil stress capacity. When calculating soil stress for determining shear and flexural forces on footings the concrete footing self-weight is not considered as it will be balanced by the soil directly.
• Independent analysis is performed to check the soil stress using the soil load combinations.
• Independent analysis is performed for the design and check of the shear and flexural capacity of the footing.
• If any part of the footing is under tension due to uplift, the footing self-weight and surcharge are used to calculate the shear and flexure for the critical sections under uplift. Top bars for flexure will only be provided for the footing if required due to uplift.