DP1 Solution
Problem 1) Joist closest to column line 1 in bay A1-C2
q D 20psf 6 ft 120 plf
Dead Load
45ft
RD q D
2.7 kip
2
45ft
Roof Live Load
From ASCE 7 Section 4.8
At 45ft 6 ft 270 ft
R1 At max min 1.0 1.2 0.001 ft
At 0.6
2
2
R1 At 0.93
q Lr 20psf R1
DP 8 Solution
Problem 1, Ch. 8 Problem 2 of Geschwindner
W12x58 subjected to axial compression and uniform bending
KLx 14ft
KLy 14ft
KLz 14ft
PD 50kip
PL 150kip
Pu 1.2 PD 1.6 PL 300 kip
4
Ix 475in
Cm
1
Pu
M Dx 20ft kip
M Lx 50ft kip
M 1st 1.2 M Dx 1.6 M L
Exam 2 CEE 4510 Summer 2012 name:
- Exam time: 105 minutes
0 Materials allowed:
0 AISC Manual, Two one-sided pages of notes, Calculator, Pencil
Short answer discussion questions:
1. What is the smallest effective length factor one can obtain for a brace
Part 2:
2
4
A := 13in
IxW := 843in
b p := 5in
tp :=
y c :=
1
2
1
3
4
IxP :=
b p tp = 0.052 in
12
in
tp
d
Ap
+ A tp +
2
2
d := 20.7in
2
Ap := b p tp = 2.5 in
= 9.14 in
Ap + A
2
2
tp
d
IxTotal := IxP + Ap y c
+ IxW + A tp + y c = 1078.6 in4
2
2
y top
CEE4510PracticeExam1
o
o
o
o
o
Summer2012
name:_
105minutes
Materialsallowed:
AISCManual
Twoonesidedpagesofnotes
PhotocopiedpagesfromASCE72010
Calculator
Pencil
Problem1,Shortanswerdiscussionquestions:
1) Explainthefundamentalmeaningofthereliabilityindex.