2. A sign with dimensions of 2.0 m x 1.2 m is supported by a hollow circular pole having an outer diameter of 220 mm and an inner diameter of 180 mm. The sign is offset 0.5 m from the centerline of the pole, and its lower edge is 6.0 m above the ground. Determine the principal stresses and maximum shear stresses at points A and B at the base of the pole due to a wind pressure of 2.0 kPa against the sign. 0.5 m For hollow circular cross section: max B 11 VQ lb -2.0m MJT Bookstore A 180 mm 220 mm B 1.33- 1.2 m 6.0 m 3+ (²²2² +²₂2²₁ +²2²) 2 A
2. A sign with dimensions of 2.0 m x 1.2 m is supported by a hollow circular pole having an outer diameter of 220 mm and an inner diameter of 180 mm. The sign is offset 0.5 m from the centerline of the pole, and its lower edge is 6.0 m above the ground. Determine the principal stresses and maximum shear stresses at points A and B at the base of the pole due to a wind pressure of 2.0 kPa against the sign. 0.5 m For hollow circular cross section: max B 11 VQ lb -2.0m MJT Bookstore A 180 mm 220 mm B 1.33- 1.2 m 6.0 m 3+ (²²2² +²₂2²₁ +²2²) 2 A
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:2. A sign with dimensions of 2.0 m x 1.2 m is supported by a hollow circular pole having an
outer diameter of 220 mm and an inner diameter of 180 mm. The sign is offset 0.5 m from the
centerline of the pole, and its lower edge is 6.0 m above the ground.
Determine the principal stresses and maximum shear stresses at points A and B at the base of the
pole due to a wind pressure of 2.0 kPa against the sign.
0.5 m
For hollow circular cross section: max
B
11
VQ
lb
-2.0m
MJT
Bookstore
A
180 mm
220 mm
B
1.33-
1.2 m
6.0 m
3+ (1/2² +₂²₁ +²²2)
A 1²2² +4²2²
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