A floor system uses 2×12 joists spanning 16 feet with a live load of 50 psf and dead load of 15 psf. If joists are spaced 16 inches on center, what is the total load per joist?
Correct Answer
C) 1,387 pounds
Total load = (50 + 15) psf = 65 psf. Tributary width = 16"/12 = 1.33 ft. Load per joist = 65 psf × 1.33 ft × 16 ft = 1,387 pounds.
Why This Is the Correct Answer
Total load = (50 + 15) psf = 65 psf. Tributary width = 16"/12 = 1.33 ft. Load per joist = 65 psf × 1.33 ft × 16 ft = 1,387 pounds.
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