Civil Engineering Reference
In-Depth Information
Bridge Input Parameters
Effective Width Calculation
Full Girder Width
Span
L
=
152
ft
L
eff
/4 =
342
12
t
+ max(
b
f
/2,
t
w
) =
Slab
t
=
10
in
full
S
(in) =
127
120
Girder
S
=
10
ft
S =
120
Haunch =
2
in
22
in
Top flange
14
x
2
in
Web
0.75
x
45
in
Bot flange
16
x
2
in
Total steel
D
49
in
(a)
Ad
2
d
I
0
Section
A
d
b
Ad
b
Top flange
28
48
1344
24.50
16810.66
9.333333
Web
33.75
24.5
826.875
1.00
33.93
5695.313
Bot flange
32
1
32
−22.50
16196.16
10.66667
Sum
93.75
2202.875
33040.749
5715.313
y
top
=
y
bot
=
23.50
in
25.50
in
I
x
=
I
0
+
Ad
2
=
38756.06
in
4
S
top
=
S
bot
=
1519.69
in
3
in
3
1649.38
(b)
Figure 7.25
(a) Demonstration of the 2D beam section properties at the interior pier location. (b) Section properties (
N
=
Ininity). Highlighted
areas are input items. (Continued)
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