PEARSON ETEXT ENGINEERING MECH & STATS
15th Edition
ISBN: 9780137514724
Author: HIBBELER
Publisher: PEARSON
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The pyramidal truss section BCDEF is symmetric about the vertical x-z plane as shown. Cables AE, AF, and AB support a 3.3-kN load.
Determine the force in member BE. The force is positive if in tension, negative if in compression.
220 mm
220 mm
270 mm
270 mm
350 mm
Answer: BE= i
290
с
290
mum
2.1kn
kN
Determine the force in each member of the space truss given F=3 kN. Use
positive to indicate tension and negative to indicate compression.
FAB = 3.23
FAC = 0.75
FAD = 0.75
FBC= 1.84
FBD= 1.84
FBE = 2.41
3m
E
-2 m.
3 m
-4 m.
✓0 kN
X KN
X KN
X KN
X KN
OKN
B
F
5 m
The pyramidal truss section BCDEF is symmetric about the vertical x-z plane as shown. Cables AE, AF, and AB support a 7.5-kN load.
Determine the force in member BE. The force is positive if in tension, negative if in compression.
370 mm
370 mm
D
390 mm
390 mm
460 mm
2
440
mm
A
440
mm
7.5 KN
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