Calculate the force generated in element 1 of the following truss if the forces A, B, and C are 1.335 N, 842 N, 516 N respectively.

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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Calculate the force generated in element 1 of the following truss if the forces A, B, and C are 1.335 N, 842 N, 516 N respectively.

A
1.2- 1.3
-1.3- 1.2
0.9
2
30
30
Distancias [m]
B
Transcribed Image Text:A 1.2- 1.3 -1.3- 1.2 0.9 2 30 30 Distancias [m] B
Expert Solution
Calculate reactions at A and B

for equilibrium sum of all the forces in y direction will be zero

RA+RB-1.335-842-516=0RA+RB=1359.335 N

Moment shoul be zero in stable structure,

Taking moment about A

-RB×5+516×5+842×2.5=0RB=937 N

Substituting value of RB in above equation

RA+937=1359.335 NRA=422.335 N

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