View Policies Current Attempt in Progress 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 106/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 x 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 = 36 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). %3D %3D (2) (1) 8 ft 6 ft 2.5 ft 3 ft 1.5 ft O 3.58 kips O 3.93 kips O 5.42 kips O 2.83 kips O 4.65 kips eTextbook and Media

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
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A load P will be supported by a structure consisting of a rigid bar ABCD, a polymer [E = 2,300 ksi; α = 2.9 × 10-6/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; α = 12.5 × 10-6/°F] bar (2), as shown. Each bar has a cross-sectional area of 2.00 in.2. The bars are unstressed when the structure is assembled at 30°F. After a concentrated load of P = 36 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1).

 

View Policies
Current Attempt in Progress
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 106/°F] bar (1) and an
aluminum alloy [E = 10,000 ksi; a = 12.5 x 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 = 36 kips is applied and the temperature is
increased to 100°F, determine the normal force in bar (1).
%3D
%3D
(2)
(1)
8 ft
6 ft
2.5 ft
3 ft
1.5 ft
O 3.58 kips
O 3.93 kips
O 5.42 kips
O 2.83 kips
O 4.65 kips
eTextbook and Media
Transcribed Image Text:View Policies Current Attempt in Progress 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 106/°F] bar (1) and an aluminum alloy [E = 10,000 ksi; a = 12.5 x 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 = 36 kips is applied and the temperature is increased to 100°F, determine the normal force in bar (1). %3D %3D (2) (1) 8 ft 6 ft 2.5 ft 3 ft 1.5 ft O 3.58 kips O 3.93 kips O 5.42 kips O 2.83 kips O 4.65 kips eTextbook and Media
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