10 ft 2 ft q=1800 lb/1² 4 ft b. Point B c. Point C 5 ft Figure 9.45 9.21 The plan of a flexible rectangular loaded area is shown in Figure 9.45. The uniformly distributed load on the flexible area, q, is 1800 lb/ft². Determine the increase in the vertical stress, A ,, at a depth of z = 5 ft below a. Point A 9.22 Refer to the flexible loaded rectangular area shown in Figure 9.45. Using Eq. (9.39), determine the vertical stress increase below the center of the area at a depth of 15 ft.
10 ft 2 ft q=1800 lb/1² 4 ft b. Point B c. Point C 5 ft Figure 9.45 9.21 The plan of a flexible rectangular loaded area is shown in Figure 9.45. The uniformly distributed load on the flexible area, q, is 1800 lb/ft². Determine the increase in the vertical stress, A ,, at a depth of z = 5 ft below a. Point A 9.22 Refer to the flexible loaded rectangular area shown in Figure 9.45. Using Eq. (9.39), determine the vertical stress increase below the center of the area at a depth of 15 ft.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:10 ft
2 ft
-4 ft
q=1800 lb/h²
5 ft
Figure 9.45
9.21 The plan of a flexible rectangular loaded area is shown in Figure 9.45. The
uniformly distributed load on the flexible area, q, is 1800 lb/ft². Determine
the increase in the vertical stress, A ,, at a depth of z = 5 ft below
a. Point A
b. Point B
e. Point C
9.22 Refer to the flexible loaded rectangular area shown in Figure 9.45. Using
Eq. (9.39), determine the vertical stress increase below the center of the area
at a depth of 15 ft.
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