@SOLUTIONSSTUDY
All 13 Chapters Covered
SOLUTIONS
, @SOLUTIONSSTUDY
Contents
Chapter 1 ........................................................................................................1
Chapter 2 ........................................................................................................6
Chapter 3 ....................................................................................................... 23
Chapter 4 ....................................................................................................... 41
Chapter 5 ....................................................................................................... 55
Chapter 6 ....................................................................................................... 62
Chapter 7 ....................................................................................................... 74
Chapter 8 ....................................................................................................... 84
Chapter 9 ....................................................................................................... 92
Chapter 10 ..................................................................................................... 109
Chapter 11 ..................................................................................................... 119
Chapter 12 ..................................................................................................... 137
Chapter 13 ..................................................................................................... 154
Appendix B......................................................................................................159
@@
SeSies im ii s o l a t io n
ici
sm c i s o l a ti o n
, @SOLUTIONSSTUDY
Problem 1-4
The size and cross-sectional areas are obtained from Part 1 of the AISCM as follows:
Size Self-weight (lb/ft.) Cross-sectional area (in2)
W14x22 22 6.49
W21x44 44 13.0
HSS 6x6x½ 35.11 9.74
L6x4x½ 16.2 4.75
C12x30 30 8.81
WT18x128 128 37.7
Problem 1-5
a)
Element A y Ay I d = y- y I + Ad2
top 21 26.25 551.25 3.94 -12.75 3418
flange
web 21 13.5 283.5 1008 0 1008
bot 21 0.75 15.75 3.94 12.75 3418
flange
= 63 in.2 850.5 I = 7844 in.4
Ay 850.5
y = 13.5 in.
A 63
Self weight = (63/144)(490 lb/ft3) = 214 lb/ft.
b)
Element A y Ay I d = y- y I + Ad2
top plate 2.63 18.26 47.93 0.03 -9.04 214.3
beam 10.3 9.23 95.02 510 0 510
bot plate 2.63 0.188 0.49 0.03 9.04 214.3
= 15.55 143.4 I = 939 in.4
in.2
Ay 143.4
y = 9.23 in.
A 15.55
Self weight = (15.55/144)(490 lb/ft3) = 52.9 lb/ft.
c) From AISCM Table 1-20, Ix = 314 in.4
Area = 13.8 in2
, @SOLUTIONSSTUDY
Self weight = 47.1 lb/ft.
All 13 Chapters Covered
SOLUTIONS
, @SOLUTIONSSTUDY
Contents
Chapter 1 ........................................................................................................1
Chapter 2 ........................................................................................................6
Chapter 3 ....................................................................................................... 23
Chapter 4 ....................................................................................................... 41
Chapter 5 ....................................................................................................... 55
Chapter 6 ....................................................................................................... 62
Chapter 7 ....................................................................................................... 74
Chapter 8 ....................................................................................................... 84
Chapter 9 ....................................................................................................... 92
Chapter 10 ..................................................................................................... 109
Chapter 11 ..................................................................................................... 119
Chapter 12 ..................................................................................................... 137
Chapter 13 ..................................................................................................... 154
Appendix B......................................................................................................159
@@
SeSies im ii s o l a t io n
ici
sm c i s o l a ti o n
, @SOLUTIONSSTUDY
Problem 1-4
The size and cross-sectional areas are obtained from Part 1 of the AISCM as follows:
Size Self-weight (lb/ft.) Cross-sectional area (in2)
W14x22 22 6.49
W21x44 44 13.0
HSS 6x6x½ 35.11 9.74
L6x4x½ 16.2 4.75
C12x30 30 8.81
WT18x128 128 37.7
Problem 1-5
a)
Element A y Ay I d = y- y I + Ad2
top 21 26.25 551.25 3.94 -12.75 3418
flange
web 21 13.5 283.5 1008 0 1008
bot 21 0.75 15.75 3.94 12.75 3418
flange
= 63 in.2 850.5 I = 7844 in.4
Ay 850.5
y = 13.5 in.
A 63
Self weight = (63/144)(490 lb/ft3) = 214 lb/ft.
b)
Element A y Ay I d = y- y I + Ad2
top plate 2.63 18.26 47.93 0.03 -9.04 214.3
beam 10.3 9.23 95.02 510 0 510
bot plate 2.63 0.188 0.49 0.03 9.04 214.3
= 15.55 143.4 I = 939 in.4
in.2
Ay 143.4
y = 9.23 in.
A 15.55
Self weight = (15.55/144)(490 lb/ft3) = 52.9 lb/ft.
c) From AISCM Table 1-20, Ix = 314 in.4
Area = 13.8 in2
, @SOLUTIONSSTUDY
Self weight = 47.1 lb/ft.
