Problem I. Steel bars and an aluminum bar support the rigid slab as a platform as shown below. A gap A = 0.26 mm exists between the aluminum bar and the slab. Neglecting the weight of the slab A (mm³) a (/degree celsius) 11.6x106 23.1x106 E (GPa) 200 Steel bar 350 Aluminum bar 400 70 a) Which temperature increase AT is required to just close the spacing at the middle? (Note that the temperature increase will subject all bars) b) What are the stresses in the steel bars and aluminum bar for AT =_ degree celsius (see the given table in MS teams) in MPa? A: 1000 mm Steel Aluminum Steel
Problem I. Steel bars and an aluminum bar support the rigid slab as a platform as shown below. A gap A = 0.26 mm exists between the aluminum bar and the slab. Neglecting the weight of the slab A (mm³) a (/degree celsius) 11.6x106 23.1x106 E (GPa) 200 Steel bar 350 Aluminum bar 400 70 a) Which temperature increase AT is required to just close the spacing at the middle? (Note that the temperature increase will subject all bars) b) What are the stresses in the steel bars and aluminum bar for AT =_ degree celsius (see the given table in MS teams) in MPa? A: 1000 mm Steel Aluminum Steel
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Note: Value of ∆T = 102 °C
![Problem I. Steel bars and an aluminum bar support the rigid slab as a platform as shown below. A gap A = 0.26 mm
exists between the aluminum bar and the slab. Neglecting the weight of the slab
A (mm?)
a (/degree celsius)
11.6x106
23.1x10-6
E (GPa)
Steel bar
350
200
Aluminum bar
400
70
Which temperature increase AT is required to just close the spacing at the middle? (Note that the
a)
temperature increase will subject all bars)
b) What are the stresses in the steel bars and aluminum bar for AT =_ degree celsius (see the given table in
MS teams) in MPa?
1000 mm
Steel
Aluminum
Steel](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b464f74-2480-4df5-b02c-234892fbf95e%2Fe9a7e035-dcb5-4340-9ff1-4dc81e3f6161%2Fy2t0wjh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Problem I. Steel bars and an aluminum bar support the rigid slab as a platform as shown below. A gap A = 0.26 mm
exists between the aluminum bar and the slab. Neglecting the weight of the slab
A (mm?)
a (/degree celsius)
11.6x106
23.1x10-6
E (GPa)
Steel bar
350
200
Aluminum bar
400
70
Which temperature increase AT is required to just close the spacing at the middle? (Note that the
a)
temperature increase will subject all bars)
b) What are the stresses in the steel bars and aluminum bar for AT =_ degree celsius (see the given table in
MS teams) in MPa?
1000 mm
Steel
Aluminum
Steel
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