A beam is held by 2 steel rods, AB and CD. Three dead load forces are applied to the beam. The normal failure stress of the steel is o fail = 260 MPa. The resistance factor is = 0.92 . The dead load factor is YD = 1.6. B LL A ^|_—_ di –-| d2 F₂ d3 F3 d4 op -1° Values for the figure are given in the following table. Note the figure may not be to scale.

Structural Analysis
6th Edition
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Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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A beam is held by 2 steel rods, AB and CD. Three dead load
forces are applied to the beam. The normal failure stress of
the steel is a fail = 260 MPa. The resistance factor is = 0.92
. The dead load factor is D = 1.6.
B
^|-
d₁
F₁
d2
F₂
Variable
Value
F₁
5 KN
F₂
7 KN
F3
6.5 KN
d₁
2 m
d₂
1 m
d3
2.25 m
d₁
3.75 m
Using the LSD/LRFD method,
d3
F3
d4
Values for the figure are given in the following table. Note
the figure may not be to scale.
X KN
C
a. Determine normal force in rod AB after accounting for
the dead load factor, NAB.
b.
Determine normal force in rod CD after accounting for
the dead load factor, NCD.
c. Determine minimum radius needed for rod AB, TAB.
d. Determine minimum radius needed for rod CD, TCD.
Round your final answers to 3 significant digits/figures.
NAB= 15.6
Transcribed Image Text:A beam is held by 2 steel rods, AB and CD. Three dead load forces are applied to the beam. The normal failure stress of the steel is a fail = 260 MPa. The resistance factor is = 0.92 . The dead load factor is D = 1.6. B ^|- d₁ F₁ d2 F₂ Variable Value F₁ 5 KN F₂ 7 KN F3 6.5 KN d₁ 2 m d₂ 1 m d3 2.25 m d₁ 3.75 m Using the LSD/LRFD method, d3 F3 d4 Values for the figure are given in the following table. Note the figure may not be to scale. X KN C a. Determine normal force in rod AB after accounting for the dead load factor, NAB. b. Determine normal force in rod CD after accounting for the dead load factor, NCD. c. Determine minimum radius needed for rod AB, TAB. d. Determine minimum radius needed for rod CD, TCD. Round your final answers to 3 significant digits/figures. NAB= 15.6
A
d₁
Variable Value
F₁
F₂
F3
d₁
Values for the figure are given in the following table. Note
the figure may not be to scale.
5 KN
7 KN
6.5 KN
2 m
1m
d3
2.25 m
d4
3.75 m
Using the LSD/LRFD method,
d₂
d2
NCD = 10.1
a. Determine normal force in rod AB after accounting for
the dead load factor, NAB.
b. Determine normal force in rod CD after accounting for
the dead load factor, NCD.
c. Determine minimum radius needed for rod AB, TAB.
d. Determine minimum radius needed for rod CD, CD.
TAB= 4.58
Round your final answers to 3 significant digits/figures.
NAB= 15.6
TCD= 3.67
X KN
d4
X KN
C
x m
x m
Transcribed Image Text:A d₁ Variable Value F₁ F₂ F3 d₁ Values for the figure are given in the following table. Note the figure may not be to scale. 5 KN 7 KN 6.5 KN 2 m 1m d3 2.25 m d4 3.75 m Using the LSD/LRFD method, d₂ d2 NCD = 10.1 a. Determine normal force in rod AB after accounting for the dead load factor, NAB. b. Determine normal force in rod CD after accounting for the dead load factor, NCD. c. Determine minimum radius needed for rod AB, TAB. d. Determine minimum radius needed for rod CD, CD. TAB= 4.58 Round your final answers to 3 significant digits/figures. NAB= 15.6 TCD= 3.67 X KN d4 X KN C x m x m
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