Page 57 - eEISBN FINALIZE
P. 57
Example 2
Determine the force for KJ ,KD and CD of the pratt truss in figure 2 .State if the parts are in
tension or compression.
Figure 2
Solution
Free body diagram
K I H
L J
AY 3m
AX
A
B C D E F G
2m 2m 2m 2m 2m 2m
40kN Gy
20kN 30kN
FKJ
L K J
AY=56.67
FKD 3m
AX =0 FCD
A B C D
2m 2m 2m
20kN 30kN
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