Problem 11. Work the following problem to see how well you understand the concept
covered in step 7. The solution to this problem is found at the end of the lesson. Determine
the maximum stud spacing (in inches) if the maximum concrete pressure is 700 psf and the
board sheathing thickness is 1 inch.
A.
14
B.
15
C.
16
D.
21
Step 8. Determine the uniform load on a stud (ULS). Determine the ULS by multiplying the
maximum concrete pressure (step 6) by the stud spacing (step 7). The ULS is measured in
pounds per linear foot. Compute as follows:
maximum concrete pressure (psf) x maximum stud spacing (in)
ULS (lb/lin ft) =
(9)
12 (in/ft)
Use the actual concrete pressure, not the adjusted value that was used to obtain the
stud spacing in step 7.
Carry out the answer to two decimal places.
EXAMPLE:
Determine the ULS if the maximum concrete pressure is 410 psf and the maximum stud
spacing is 18 inches.
410 x 18
7,380
ULS =
=
= 615.00 lb/lin ft
(10)
12
12
Problem 12. Work the following problem to see how well you understand the concept
covered in step 8. The solution to this problem is found at the end of the lesson. Determine
the ULS if the maximum concrete pressure is 350 psf and the maximum stud spacing is 20
inches.
A.
350.38
B.
560.70
C.
583.33
D.
593.35
Step 9. Determine the maximum wale spacing. Use Table 3 and compute as follows:
Find the uniform load in the left-hand column. If the value for the load is not listed in
the table, adjust up to the next value given. For example, for 840 pounds per linear
foot, use 900 pounds per linear foot.
Move to the right across this row to the column headed by the correct size of the stud
being used. The intersecting number is the maximum wale spacing.
13
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