Two vertical rods AB (A36 steel, E = 200 GPA) and CD (red brass, E = 101 GPA) support a rigid bar AC which is loaded at E. In the current configuration workers in the factory have noticed the horizontal bar AC rotates slightly once the load in E is applied. This is causing problems and needs to be addressed. Your supervisor has asked you to first verify that this rotation is occurring and calculate its magnitude. Then determine the new location for the load application point E such that this rotation can be eliminated.
Two vertical rods AB (A36 steel, E = 200 GPA) and CD (red brass, E = 101 GPA) support a rigid bar AC which is loaded at E. In the current configuration workers in the factory have noticed the horizontal bar AC rotates slightly once the load in E is applied. This is causing problems and needs to be addressed. Your supervisor has asked you to first verify that this rotation is occurring and calculate its magnitude. Then determine the new location for the load application point E such that this rotation can be eliminated.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Two vertical rods AB (A36 steel, E = 200 GPA) and CD (red brass, E = 101 GPA) support a rigid bar AC which is loaded at E. In the current configuration workers in the factory have noticed the horizontal bar AC rotates slightly once the load in E is applied. This is causing problems and needs to be addressed. Your supervisor has asked you to first verify that this rotation is occurring and calculate its magnitude. Then determine the new location for the load application point E such that this rotation can be eliminated.
Transcribed Image Text:Two vertical rods AB (A36 steel, E = 200 GPA) and CD (red brass, E = 101 GPA) support a rigid bar AC which is
loaded at E. In the current configuration workers in the factory have noticed the horizontal bar AC rotates
slightly once the load at E is applied. This is causing problems and needs to be addressed. Your supervisor has
asked you to first verify that this rotation is occurring and calculate its magnitude. Then determine the new
2.
location for the load application point E such that this rotation can be eliminated. Ans: 0 = 0.00122 rad
B
ADC = 45 mm2
2 m A24 = 60 mm²
2 m
E
A
C
-0.5 m-- 0.75 m-
1.5 m
AEF = 75 mm2
F
P = 20 kN
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