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Problem 6.29
By inspection, identify the zero-force members in the truss.
Problem 6.30
By inspection, identify the zero-force members in the truss.
Problem 6.31
By inspection, identify the zero-force members in the truss.
Problem 6.32
(a) By inspection, identify the zero-force members in the truss.
(b) Determine the force supported by all members of the truss.
Problem 6.33
(a) By inspection, identify the zero-force members in the truss.
(b)
Determine the force supported by member
F G
and all of the members to
the left of it.
(c)
Determine the force supported by all of the members to the right of
member F G.
Problem 6.34
A model for a two-story building is shown. Determine the force supported by
each member of the truss.
Problem 6.35
A model for a two-story building is shown. Determine the force supported by
each member of the truss.
„ƒ‚…
D0
CFxD0)FxD 14 kN:(5)
FBDs for each joint are shown at the right where member
forces are positive in tension.
850 Solutions Manual
Joint D:
XFyD0WTBD TDF 12 kN D0)TDF D 28 kN, (10)
Problem 6.36
(a) By inspection, identify the zero-force members in the truss.
(b)
Determine the force supported by member
CH
and all of the members
to the left of it.
(c)
Determine the force supported by all of the members to the right of
member CH .
Problem 6.37
The truss has frictionless pulleys at points B,J, and K. Cable segment BL is vertical and WD1kip.
(a) By inspection, identify the zero-force members in the truss.
(b) Determine the force supported by member CE.
(c) Determine the force supported by member GI .
Problem 6.38
A shelf used in a store for displaying shoes and handbags is modeled as a truss
having 13 members, as shown. Determine the force supported by all members
of the truss.
Problem 6.39
In Fig. P6.38, let the
20 lb
,
50 lb
, and
30 lb
forces acting at joints
A
,
B
, and
C
be due to the weight of
shelves
AB
and
BC
, and the items these shelves support. Assuming the weights are uniformly distributed,
follow the procedure described in Example 6.2 on p. 372 to determine the weight of shelves
AB
and
BC
(including the items they support).
Problem 6.40
All members of the truss have the same length. Determine the force supported
by members BD,CD, and CE.
2.L/TBD.L sin 60ı/D0; (5)
