Civil Engineering Reference
In-Depth Information
Problem 8.9
(
Ans.
58,243 lb)
f
c
1
2
d
8.10
If
3000 psi,
V
u
60 k, and
b
w
, select a
rectangular beam section if no web reinforcing is used.
f
c
In Problems 8.11 to 8.19 for the beams and loads given, select stirrup spacings if
4000 psi and
f
y
60,000 psi. The
dead loads shown include beam weights. Do not consider movement of live loads unless specifically requested. Assume
#3
stirrups.
Problem 8.11
(
One ans.
1 @ 3 in., 10 @ 12 in.)
Problem 8.12
8.13
Repeat Problem 8.12 if live load positions are con-
sidered to cause maximum end shear and maximum
L
shear. (
One ans.
1 @ 3 in., 7 @ 6 in., 5 @ 12 in.)
D
= 2 k/ft
L
= 4 k/ft
27"
30"
4 #9
18'
12"
3"
