STRUCTURAL ANALYSIS (LL)
6th Edition
ISBN: 9780357030967
Author: KASSIMALI
Publisher: CENGAGE L
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Chapter 13, Problem 61P
To determine
Find the tension in the cable using the method of least work.
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Problem2
The planar truss shown in the figure below (fig.2) is a structure composed of slender members (metal
bars) joined at their endpoints. You are asked to:
(a) Determine the support reactions observed by the plan truss; joint pin at A, and roller support at F.
(b) Using the joints method determine the force in members "DE", "DF", and "DC". State if these
members are in tension [T] or compression [C]
(c) Determine all the zero-force members.
Le treillis plan illustré dans la figure ci-dessous (fig.2) est une structure composée d'éléments minces
(barres métalliques) joints à leurs extrémités. Il vous est demandé de:
(a) Déterminez les réactions d'appui observées par le treillis plan; goupille d'articulation en A et un
support à rouleau en F.
(b) À l'aide de la méthode des joints, déterminez la force dans les éléments DE, DF, et DC. Indiquez si ces
éléments sont en tension [T] ou en compression [C]
(c) Déterminez tous les membrures à force nulle.
m
10
G
15 kN
kufatal
10 kN
-3m--3m-
2…
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)
P
FIG. P1.48
1.48 The links of the chain are made of steel that has a working stress of 300 MPa
in tension. If the chain is to support the force P = 45 kN, determine the smallest safe
diameter d of the links.
P
Chapter 13 Solutions
STRUCTURAL ANALYSIS (LL)
Ch. 13 - Prob. 1PCh. 13 - Prob. 2PCh. 13 - Prob. 3PCh. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10P
Ch. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - Prob. 14PCh. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Prob. 18PCh. 13 - Prob. 19PCh. 13 - Prob. 20PCh. 13 - Prob. 21PCh. 13 - Prob. 22PCh. 13 - Prob. 23PCh. 13 - Prob. 24PCh. 13 - Prob. 25PCh. 13 - Prob. 26PCh. 13 - Prob. 27PCh. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 30PCh. 13 - Prob. 31PCh. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - Prob. 37PCh. 13 - Prob. 38PCh. 13 - Prob. 39PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - Prob. 43PCh. 13 - Prob. 44PCh. 13 - Prob. 45PCh. 13 - Prob. 46PCh. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - Prob. 50PCh. 13 - Prob. 51PCh. 13 - Prob. 52PCh. 13 - Prob. 53PCh. 13 - Prob. 54PCh. 13 - Prob. 55PCh. 13 - Prob. 56PCh. 13 - Prob. 57PCh. 13 - Prob. 58PCh. 13 - Prob. 59PCh. 13 - Prob. 60PCh. 13 - Prob. 61P
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