A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E - 2,300 ksi; a = 2.9 × 106/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 × 106/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.?. The bars are unstressed when the structure is assembled at 30°F. After a concentrated load of P = 60 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). (2) |(1) 8 ft 6 ft B |D 2.5 ft 3 ft 1.5 ft 6.30 kips O 7.66 kips 8.23 kips O 5.91 kips O 6.89 kips
A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E - 2,300 ksi; a = 2.9 × 106/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 × 106/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.?. The bars are unstressed when the structure is assembled at 30°F. After a concentrated load of P = 60 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). (2) |(1) 8 ft 6 ft B |D 2.5 ft 3 ft 1.5 ft 6.30 kips O 7.66 kips 8.23 kips O 5.91 kips O 6.89 kips
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![X Your answer is incorrect.
A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a= 2.9 x 10-6/°F] bar (1) and an
aluminum alloy [E = 10,000 ksi; a = 12.5× 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.?. The bars are
unstressed when the structure is assembled at 30°F. After a concentrated load of P = 60 kips is applied and the temperature is
increased to 100°F, determine the normal force in bar (1).
(2)
|(1)
8 ft
6 ft
В
C
D
2.5 ft
3 ft
1.5 ft
P
6.30 kips
O 7.66 kips
8.23 kips
O 5.91 kips
O 6.89 kips](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F21e2ad73-e50f-45e1-9587-643eb18275cf%2F486eddc4-ca06-41db-977f-2ede74ab1c15%2Frjrkdn_processed.png&w=3840&q=75)
Transcribed Image Text:X Your answer is incorrect.
A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; a= 2.9 x 10-6/°F] bar (1) and an
aluminum alloy [E = 10,000 ksi; a = 12.5× 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.?. The bars are
unstressed when the structure is assembled at 30°F. After a concentrated load of P = 60 kips is applied and the temperature is
increased to 100°F, determine the normal force in bar (1).
(2)
|(1)
8 ft
6 ft
В
C
D
2.5 ft
3 ft
1.5 ft
P
6.30 kips
O 7.66 kips
8.23 kips
O 5.91 kips
O 6.89 kips
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