Sustainable Energy, Si Edition
2nd Edition
ISBN: 9781337551670
Author: DUNLAP, Richard A.
Publisher: Cengage Learning
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Chapter 6, Problem 5P
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1.7. The general Factor of Safety formula can be stated as:
a. SF =
allowable
Tyleld
allowable
b. SF =
"working
allowable
c. SF =
deffective
d. Both b and c
1.8. The maximum principal stress criterion is ideal for predicting failure in ductile materials.
a. True
b. False
1.9. Is the following system statically determinate or indeterminate?
a. Determinate
b. Indeterminate
-L·
1.10. Is the following system statically determinate or indeterminate?
a. Determinate
b. Indeterminate
8m
y=x²/2
2m 2m
4m
2m
Lm
y=x²/4
3m
4
5m
9m
A+
Determine if the channel is adequate for the applied tension load shown
in Figure. The channel is ASTM A36 steel and is connected with four 5/8-
in. diameter bolts. The tension member is subjected to service dead and
live loads of 28.5 kips and 25.5 kips, respectively, C8x11.5.
1½"
1½"
°
-C8x11.5
" gusset plate
PD = 28.5k
P₁ = 25.5k
End view
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