Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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Question
Chapter 12, Problem 6P
To determine
Find the approximate axial forces, shears, and moments for the all members of the frames using portal method.
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EXAMPLE 3.3
Determine the force in each member of the scissors truss shown in
Fig. 3-2la. State whether the members are in tension or compression.
The reactions at the supports are given.
700 N
800 N
SOLUTION
A, 566 N
60
60
The truss will be analyzed in the following sequence:
30°
30
Joint E, Fig. 3-21b. Note that simultaneous solution of equations
is avoided by the x, y axes orientation.
3m
3 m
E,-764 N
A,
502 N
(a)
C- In Fig.C , Resolve the 10ON force into components along the u and v axes, and
determine the magnitude of each of these components.
D- In Fig.D, Determine the moment of the force about point O.
400 N
100N
28
и
18
R
2.12 m
Fig. C
-2.12 m
Fig.D
Determine the reactions and draw the shear and bending moment diagrams for the beams shown by using the slope deflection method. PLEASE REFER TO FIG. P16.3
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