Civil Engineering Reference
In-Depth Information
Analysis of Doubly Reinforced Beams
In Problems 5.26 to 5.32 compute the design strengths of
the beams shown if
f
y
60,000 psi and
4000 psi.
Check the maximum permissible
A
s
in each case to ensure
tensile failure.
Problem 5.28
c
f
3 #9
2
2
"
30"
4 #11
Problem 5.26
16"
4 #8
2
2
"
38"
8 #10
15"
Problem 5.29
(
Ans.
613.0 ft-k)
Problem 5.27
(
Ans.
679.1 ft-k)
2
2
"
2 #8
3 #8
2
2
"
22
2
"
32"
28"
4 #11
4 #10
12"
15"
3"
