STRUCTURAL ANALYSIS (LL)
6th Edition
ISBN: 9780357030967
Author: KASSIMALI
Publisher: CENGAGE L
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Chapter 9, Problem 17P
To determine
Find the maximum tensile axial force in member DI.
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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)
Q-1
The fixed-end beam is subjected to a concentrated moment "M" at midspan as shown
in Fig. 1. Use the method of consistent deformations to determine the reaction
components and draw the shear force and bending moment diagrams for the beam.
(constant EI).
Fig.1
Determine the magnitudes of the maximum tensile and
compressive normal stresses on the transverse plane B-B in
the straight portion of the structure shown in Fig. P7-184. The
member is braced perpendicular to the plane of symmetry.
100 mm
50 mm
75 mm
50 mm
H
Section B-B
-150 mm
ANSWER: OL= 25.9MPa,oR= -28.5 MPa
3
4
50 KN
-750 mm
B
C
1200 mm
D
B
Chapter 9 Solutions
STRUCTURAL ANALYSIS (LL)
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