Steel Brass Copper Es = 200 GPa ast = 12(10-)/°C apr = 21(10-6)/°C acu = 17(10-)C Epr 100 GPa Ecu = 120 GPa %3D %3D 21(10-6)/°C acu = 17(10-")/°C %3D Acu = 515 mm² | Ast = 200 mm? Abr = 450 mm? - 300 mm- 200 mm 100 mm
Steel Brass Copper Es = 200 GPa ast = 12(10-)/°C apr = 21(10-6)/°C acu = 17(10-)C Epr 100 GPa Ecu = 120 GPa %3D %3D 21(10-6)/°C acu = 17(10-")/°C %3D Acu = 515 mm² | Ast = 200 mm? Abr = 450 mm? - 300 mm- 200 mm 100 mm
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Q.2 Three bars each made of different materials are connected together and placed between two walls when the temperature is T1 = 12 oC. Determine the force exerted on the rigid supports when the temperature becomes T2=18 oC. The material properties and crosssectional area of each bar are given in the figure.

Transcribed Image Text:Steel
Brass
Copper
Es = 200 GPa
ast = 12(10-)/°C apr = 21(10-6)/°C acu = 17(10-)C
Epr
100 GPa
Ecu = 120 GPa
%3D
%3D
21(10-6)/°C acu = 17(10-")/°C
%3D
Acu = 515 mm²
| Ast = 200 mm? Abr = 450 mm?
- 300 mm-
200 mm
100 mm
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