H.W 4 A simple beam on a 10 ft span supports a uniform load of intensity 800 lb/ft (see figure). The beam consists of a wood member (4 in. X 11.5 in. in cross section) that is reinforced by 0.25 in. thick steel plates on top and bottom. The moduli of elasticity for the steel and wood are E, = 30 x 106 psi and E,,= 1.5 X 106 psi, respectively. Calculate the maximum bending stresses o, in the steel plates and o, in the wood member due to the uniform load. 0.25 in. 800 lb/ft 10 ft FIGURE 4 11.5 in. 0.25 in. in.
H.W 4 A simple beam on a 10 ft span supports a uniform load of intensity 800 lb/ft (see figure). The beam consists of a wood member (4 in. X 11.5 in. in cross section) that is reinforced by 0.25 in. thick steel plates on top and bottom. The moduli of elasticity for the steel and wood are E, = 30 x 106 psi and E,,= 1.5 X 106 psi, respectively. Calculate the maximum bending stresses o, in the steel plates and o, in the wood member due to the uniform load. 0.25 in. 800 lb/ft 10 ft FIGURE 4 11.5 in. 0.25 in. in.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![H.W 4 A simple beam on a 10 ft span supports a uniform
load of intensity 800 lb/ft (see figure). The beam consists of
a wood member (4 in. x 11.5 in. in cross section) that is
reinforced by 0.25 in. thick steel plates on top and bottom.
The moduli of elasticity for the steel and wood are Es
30 x 10° psi and E, = 1.5 x 106 psi, respectively.
Calculate the maximum bending stresses o, in the steel
plates and or, in the wood member due to the uniform load.
0.25 in.
800 lb/ft
10 ft
FIGURE 4
11.5 in.
0.25 in.
4 in.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F41b36579-b7a4-4006-a8b2-2cc0e2020bc6%2F590fdc45-5145-421a-b404-c1f245a1c4dd%2Fz12nl5a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:H.W 4 A simple beam on a 10 ft span supports a uniform
load of intensity 800 lb/ft (see figure). The beam consists of
a wood member (4 in. x 11.5 in. in cross section) that is
reinforced by 0.25 in. thick steel plates on top and bottom.
The moduli of elasticity for the steel and wood are Es
30 x 10° psi and E, = 1.5 x 106 psi, respectively.
Calculate the maximum bending stresses o, in the steel
plates and or, in the wood member due to the uniform load.
0.25 in.
800 lb/ft
10 ft
FIGURE 4
11.5 in.
0.25 in.
4 in.
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