Page 135 - 2018_IRC

FOUNDATIONS

4000 Wall width (inches) 2 1 0 1 8 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 6 7 7 1 7 1 7 1

3500 Wall width (inches) 2 1 0 1 8 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 4 4 5 7 1 5 1 4 1 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 6 8 9 9 1 0 2 9 1

LOAD-BEARING VALUE OF SOIL (psf) 3000 GP, GW c Wall width (inches) 2 1 0 1 8 2 4 4 4 7 1 5 1 3 1 7 4 4 4 7 1 5 1 3 1 7 4 4 4 4 7 1 5 1 3 1 7 4 4 4 7 1 5 1 3 1 7 4 4 4 7 1 5 1 3 1 7 4 6 7 7 7 1 7 1 7 1 1 4 4 4 7 1 5 1 3 1 7 4 4 6 5 7 1 5 1 5 1 8 8 0 1 2 1 2 2 2 2 2 2 2 6

TABLE R403. MINIMUM DEPTH (D) AND WIDTH (W) OF CRUSHED STONE FOOTINGS a, b (inches) 2500 Wall width (inches) 1 0 1 8 Conventional light-frame construction 4 4 4 1 5 1 3 1 4 4 4 1 5 1 3 1 4 6 1 5 1 5 1 4-inch brick veneer over light-frame or 8-inch hollow concrete masonry 4 4 4 1 5 1 3 1 4 4 5 1 5 1 4 1 8 0 1 2 0 2 0 2 8-inch solid or fully grouted masonry 4 4 4 1 5 1 3 1 7 9 1 9 1 9 1 1 4 1 6 1 2 7

2000 SC, GC, SM, GM, SP, SW c Wall width (inches) 2 1 0 1 8 4 4 4 7 1 5 1 3 1 4 4 4 7 1 5 1 3 1 5 7 9 8 1 9 1 9 1 4 4 4 7 1 5 1 3 1 4 6 8 7 1 7 1 8 1 1 1 3 1 4 1 5 2 6 2 5 2 4 4 4 7 1 5 1 3 1 9 1 1 2 1 3 2 3 2 2 2 8 1 9 1 1 2 3 3 2 3 3 3

1500 MH, CH, CL, ML c Wall width (inches) 2 1 0 1 4 4 7 1 5 1 4 4 7 1 5 1 0 1 2 1 4 2 4 2 4 4 7 1 5 1 9 1 1 3 2 3 2 8 1 0 2 3 3 4 3 4 6 7 1 7 1 5 1 7 1 0 3 0 3 7 2 9 2 4 4 4 4 1 inch = 25.4 mm, 1 plf = 14.6 N/m, 1 pound per square foot = 47.9 N/m 2 . Linear interpolation of stone depth between wall widths is permitted within each Load-Bearing Value of Soil (psf). Soil classes are in accordance with t

DEPTH (D) AND WIDTH (W) 8 4 D 3 1 W 6 D 5 1 W 4 1 D 5 2 W 4 D 3 1 W 2 1 D 2 2 W 1 2 D 3 3 W 7 D 7 1 W 9 1 D 0 3 W 0 3 D 3 4 W Crushed stone must be consolidated in 8-inch lifts with a plate vibrator.

UNIFORM WALL LOAD 1100 plf 1800 plf 2900 plf 1500 plf 2700 plf 4000 plf 2000 plf 3600 plf 5300 plf

NUMBER OF STORIES 1-story 2-story 3-story 1-story 2-story 3-story 1-story 2-story 3-story For SI: a. b. c.

110 2018 INTERNATIONAL RESIDENTIAL CODE ®
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