Civil Engineering Reference
In-Depth Information
TABLE 9.1
Properties of Weld Lines
Location of
Section
Polar Moment of
center of gravity
Modulus/
Inertia About
Weld Configuration
(cg) (
x
1
and
y
1
)
Weld Size
cg/Weld Size
d
2
6
d
3
12
S
x
t
e
=
I
p
t
e
=
x
1
=
0
d
d
2
y
1
=
d
2
3
d(
3
b
2
+
d
2
)
6
b
2
S
x
t
e
=
I
p
t
e
=
d
x
1
=
d
2
y
1
=
b
d(
3
d
2
+
b
2
)
6
I
p
t
e
=
b
2
S
x
t
e
=
x
1
=
bd
d
d
2
y
1
=
b
x
1
b
2
2
(b
+
d)
d
2
(b
+
d)
4
−
6
b
2
d
2
12
(b
+
d)
S
x
t
e
=
+
4
bd
6
I
p
t
e
=
x
1
=
y
1
d
d
2
2
(b
+
d)
y
1
=
b
x
1
b
2
2
b
+
d
d
2
6
8
b
3
+
6
bd
2
+
d
3
S
x
t
e
=
bd
+
I
p
t
e
=
x
1
=
12
d
d
2
y
1
=
b
d
2
8
d
3
+
6
db
2
+
b
3
y
1
+
2
bd
3
I
p
t
e
=
b
2
S
x
t
e
=
x
1
=
d
12
d
2
2
d
+
b
y
1
=
b
d
2
3
(b
+
d)
3
6
I
p
t
e
=
b
2
S
x
t
e
=
x
1
=
bd
+
d
d
2
y
1
=
b
