Add Table R403.1, Minimum Width Of Concrete, Precast, Or Masonry Footings as follows:
TABLE R403.1
MINIMUM WIDTH OF CONCRETE,
PRECAST, OR MASONRY FOOTINGS (inches)a
LOAD-BEARING VALUE OF SOIL (psf) | ||||
1,500 | 2,000 | 3,000 | 4,000 | |
LOAD-BEARING VALUE OF SOIL (psf) | ||||
1,500 | 2,000 | 3,000 | 4,000 | |
Conventional light-frame construction | ||||
1-Story | 12 | 12 | 12 | 12 |
2-Story | 15 | 12 | 12 | 12 |
3-Story | 23 | 17 | 12 | 12 |
4-inch brick veneer over light-frame or 8-inch hollow concrete masonry | ||||
1-Story | 12 | 12 | 12 | 12 |
2-Story | 21 | 16 | 12 | 12 |
3-Story | 32 | 24 | 16 | 12 |
8-inch solid or fully grouted masonry | ||||
1-Story | 16 | 12 | 12 | 12 |
2-Story | 29 | 21 | 14 | 12 |
3-Story | 42 | 32 | 21 | 16 |
For SI: 1 inch = 25.4mm, 1 pound per square foot = 0.0479 kPa.
a. Where minimum footing width is twelve (12) inches, use of a single wythe of solid or fully grouted twelve (12) inch nominal concrete masonry units is permitted.
(Ord. 40-20, 12-1-2020, eff. 1-1-2021)