concrete slab, 40 ft long, 11 ft wide, and 9 in. thick, is placed on a subgrade having a modu- lus of subgrade reaction of 200 pci. A 9000-Ilb single-wheel load is applied on the edge of the slab over a circular area with a contact pressure of 100 psi, as shown in Figure P4.8. Compute (a) the curling stress at the edge during the night when the temperature differential is 1.5°F per inch of slab, (b) the loading stress due to the 9000-lb wheel load, and (c) the combined stress at the edge beneath the load due to (a) and (b). [Answer: 140.4, 290.3, 149.9 psi] 40 ft h 9 in. k = 200 pci At = +13.5 F %3D 11 ft 100 psi 9000 lb
concrete slab, 40 ft long, 11 ft wide, and 9 in. thick, is placed on a subgrade having a modu- lus of subgrade reaction of 200 pci. A 9000-Ilb single-wheel load is applied on the edge of the slab over a circular area with a contact pressure of 100 psi, as shown in Figure P4.8. Compute (a) the curling stress at the edge during the night when the temperature differential is 1.5°F per inch of slab, (b) the loading stress due to the 9000-lb wheel load, and (c) the combined stress at the edge beneath the load due to (a) and (b). [Answer: 140.4, 290.3, 149.9 psi] 40 ft h 9 in. k = 200 pci At = +13.5 F %3D 11 ft 100 psi 9000 lb
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![4.8 A concrete slab, 40 ft long, 11 ft wide, and 9 in. thick, is placed on a subgrade having a modu-
lus of subgrade reaction of 200 pci. A 9000-Ib single-wheel load is applied on the edge of the
slab over a circular area with a contact pressure of 100 psi, as shown in Figure P4.8. Compute
(a) the curling stress at the edge during the night when the temperature differential is 1.5°F
per inch of slab, (b) the loading stress due to the 9000-lb wheel load, and (c) the combined
stress at the edge beneath the load due to (a) and (b). [Answer: 140.4, 290.3,149.9 psi]
40 ft
h = 9 in.
k = 200 pci
At = +13.5°F
%3D
11 ft
100 psi
9000 lb
o, due to combined curling and loading?
FIGURE P4.8
unu OE shovo in Figure P4.9.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff116350b-280b-4335-b9a8-0d04d59a11c9%2F5712c23d-93f0-46f8-9173-439982aa5467%2Fbvmsq7f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:4.8 A concrete slab, 40 ft long, 11 ft wide, and 9 in. thick, is placed on a subgrade having a modu-
lus of subgrade reaction of 200 pci. A 9000-Ib single-wheel load is applied on the edge of the
slab over a circular area with a contact pressure of 100 psi, as shown in Figure P4.8. Compute
(a) the curling stress at the edge during the night when the temperature differential is 1.5°F
per inch of slab, (b) the loading stress due to the 9000-lb wheel load, and (c) the combined
stress at the edge beneath the load due to (a) and (b). [Answer: 140.4, 290.3,149.9 psi]
40 ft
h = 9 in.
k = 200 pci
At = +13.5°F
%3D
11 ft
100 psi
9000 lb
o, due to combined curling and loading?
FIGURE P4.8
unu OE shovo in Figure P4.9.
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