Determine the force in members CE, CF and BF for the truss loaded as shown. D 30 30 60° H. 45 45°
Determine the force in members CE, CF and BF for the truss loaded as shown. D 30 30 60° H. 45 45°
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Analysis of truss by method of joints.
Transcribed Image Text:Assignment # 6: Analysis of Truss by Method of Joints
1. Determine the force in members CE, CF and BF for the truss loaded as shown. Ans. BF = 0.289P (T)
300
\60°
30°
OF
H.
45
45°
2. The truss is subjected to four loadings as shown. Calculate the axial force in members BD, CD,
and CE using method of joints. Ans. BD = 948 lb (C), CD = 141.4 Ib ( T )
1200 lb
600 lb
D
20'
15'
15'
15'
E
F
10'
400 lb
200 lb
3. The truss is loaded by a 4-KN force and a 5-KN force applied at B and A, respectively.
Determine the magnitude of axial force developed in members CE and CF. Ans. CF = 8.77 kN
4 kN
-3 m-
-3 m-
3m-
3 m
5 m
5 kN
Transcribed Image Text:5 kN
4. The truss is supported by a hinge at A and roller at D. It is subjected to three loads P, P2 and
P3. Set P, = 100 lb, P2 = 200 Ib, P3 = 300 lb. Determine the force in members CF and EF. Ans. CF=
47.10 Ib, EF = 113 lb
10 ft
D
30°
-10 ft +
-10 ft-
-10 ft-
P2
P3
5. For the truss loaded as shown, calculate the force developed in members BC, CE and CD by
method of joints. Ans. BC = 400 lb, CE = 675 Ib
12'
9'
300 Ib
300 lb
900 lb
6. In cantilever truss shown, compute the force in members AB, BD, and BE using method of
joints. Ans. AB = 1732 Ib (T ). BE = 1154 Ib ( C )
1000 Ib
1000 lb
1000 lb
30
1000 lb
30
60°
30°
30%
A
E
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