Complete the analysis of the truss (determine all member forces). The first FBD of joint C is given with commentary on how Tension is not up or down, BUT a pulling away from the joint and/or member. Similarly with compression, a pushing on the joint or member. 2 m ny2my2m 2m 5m Perform all joint FBD in the following order (for we can only have a maximum of 2 unknowns) C, D. B, E, A, F. 4 m 4 m Don't forget to apply the unknown reaction forces at joints A and F. As check, the force in member EA is 150.78 80 kN 60 kN

Structural Analysis
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Chapter2: Loads On Structures
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ARCE 211
Method of Joints
1. (15 pts)
Complete the analysis of the truss
(determine all member forces).
The first FBD of joint C is given with
commentary on how Tension is not up or
down, BUT a pulling away from the joint
and/or member. Similarly with
compression, a pushing on the joint or
member.
2 m
2 m 2 m
2 m
5 m
Perform all joint FBD in the following
order (for we can only have a maximum of
2 unknowns) C, D. B, E, A, F.
4 m
4 m
Don't forget to apply the unknown reaction
forces at joints A and F.
As check, the force in member EA is 150.78
80 kN
60 kN
(Compression)
Transcribed Image Text:ARCE 211 Method of Joints 1. (15 pts) Complete the analysis of the truss (determine all member forces). The first FBD of joint C is given with commentary on how Tension is not up or down, BUT a pulling away from the joint and/or member. Similarly with compression, a pushing on the joint or member. 2 m 2 m 2 m 2 m 5 m Perform all joint FBD in the following order (for we can only have a maximum of 2 unknowns) C, D. B, E, A, F. 4 m 4 m Don't forget to apply the unknown reaction forces at joints A and F. As check, the force in member EA is 150.78 80 kN 60 kN (Compression)
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