ACI 318-19 Concrete Pad Footing Design Calculator
The SkyCiv Concrete Pad Footing Design Calculator is developed to assist in designing isolated concrete pad footings. It can be used in place of traditional pad footing design spreadsheets. This user-friendly and free calculator evaluates footings subjected to axial force, transverse (horizontal) shear, and bending moment of either axis. The footing is checked for axial force in compression as well as in tension (uplift) in compliance with the ACI 318-19.
About the ACI 318-19 Concrete Pad Footing Design Calculator
What inputs are required in the calculator?
Various inputs are required to complete the design checks for the concrete pad footings. The inputs include:
- Footing and Slab Geometry
- Material
- Design actions
- Reinforcement
- Soil Properties
- Design Factors
Once all the inputs have been filled out click the "Run" button in the top right to complete the concrete pad footing design.
Does the SkyCiv Concrete Pad Footing Calculator consider the stability checks?
Yes, the pad footing design tool evaluates the stability of the isolated pad footing for the following stability aspects:
- Bearing pressure below the pad.
- No tension condition.
- Uplift in the case of upward axial load acting on the pad.
Does the calculator consider the effect of wind or seismic loads in the bearing pressure calculation?
Yes, this calculator provides a choice to the user for declaration of considering or not considering the effect due to wind and seismic pressure. Based on the user declaration, the allowable soil bearing pressure is increased by 33% and then compared with the actual bearing pressure.
Which checks are considered for the concrete pad footing calculation?
The isolated pad footing is checked for the following actions:
- Adequacy of the plan dimensions of the footing for allowable soil-bearing pressure.
- Adequacy against "No Tension" condition.
- Reinforcement in longitudinal and transverse direction for the given action of the loads (flexure and shear).
- Adequacy of the thickness of the pad from One Way Shear criteria.
- Adequacy of the thickness of the pad from Two Way Shear criteria (punching shear).
