For a bearing calculation, use a uniform load of 60 psf over a supplied tributary width of 14 feet. A strip footing is 16 inches wide. Assume this is the complete concentric load being evaluated and uniform bearing. What soil pressure results?
- A840 pounds per square foot
- 630 pounds per square foot
- C1,260 pounds per square foot
- D420 pounds per square foot
Where to look it up
Explicit exercise assumptions; not a universal code requirement.
Why B is correct
Load per linear foot = 60 × 14 = 840 pounds. Bearing area per linear foot = 16 / 12 square feet. Pressure = 840 / (16 / 12) = 630 psf. Tributary width is given, not derived from a universal half-span rule. This calculation alone does not establish overall footing adequacy.