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Free Books / Architecture / The Building Trades Pocketbook / | ![]() |
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Section Modulus, Or Resisting Inches. Part 6 |
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This section is from the book "The Building Trades Pocketbook", by International Correspondence Schools. Also available from Amazon: Building Trades Pocketbook: a Handy Manual of reference on Building Construction.
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Distance of Center of Gravity From Flange. * |
Neutral Axis Parallel to Flange. |
Neutral Axis Square to Flange and Coincident With Stem. |
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|
Thickness. |
Weight per Foot. |
Area of Section. |
Radius of Gyrat ion in Inches |
Moment of Inertia. |
Section Modulus. |
Radius of Gyration in Inches. |
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|
In. |
In. |
Lb. |
Sq. In. |
In. |
I. |
Q. |
R. |
T. |
Q'. |
R'. |
|
6 X4 |
5/8 |
20.6 |
6.06 |
1.04 |
7.68 |
2.58 |
1.13 |
11.50 |
3.83 |
1.38 |
|
6 X4 |
1/2 |
17.0 |
5.00 |
.99 |
6.37 |
2.11 |
1.13 |
9.22 |
3.07 |
1.34 |
|
5 X3 |
1/2 |
13.5 |
3.97 |
.75 |
2.60 |
1.15 |
.83 |
5.23 |
2.09 |
1.18 |
|
5 X2 1/2 |
3/8 |
10.4 |
3.07 |
.57 |
1.24 |
.64 |
.64 |
4.24 |
1.70 |
1.18 |
|
4 1/2X3 |
3/8 |
10.0 |
3.00 |
.75 |
2.10 |
.94 |
.86 |
3.10 |
1.38 |
1.04 |
|
4 1/2X3 |
5/16 |
8.5 |
2.55 |
.73 |
1.80 |
.81 |
.87 |
2.60 |
1.16 |
1.03 |
|
4 X3i |
1/2 |
12.5 |
3.70 |
1.01 |
3.97 |
1.60 |
1.04 |
2.88 |
1.44 |
.88 |
|
4 X3 1/2 |
3/8 |
9.8 |
2.88 |
.92 |
3.20 |
1.24 |
1.05 |
2.18 |
1.09 |
.87 |
|
4 X2 1/2 |
3/8 |
8.6 |
2.52 |
.63 |
1.20 |
.62 |
.69 |
2.10 |
1.05 |
.92 |
|
4 X2 |
3/8 |
7.9 |
2.31 |
.48 |
.60 |
.40 |
.52 |
2.12 |
1.06 |
.96 |
|
3 1/2X4 |
1/2 |
12.8 |
3.75 |
1.25 |
5.50 |
1.98 |
1.21 |
1.89 |
1.08 |
.72 |
|
3 1/2X4 |
3/8 |
9.9 |
2.91 |
1.19 |
4.30 |
1.55 |
1.22 |
1.42 |
.81 |
.70 |
|
3 X4 |
1/2 |
11.9 |
3.48 |
1.32 |
5.23 |
1.94 |
1.23 |
1.21 |
.81 |
.59 |
|
3 X3 1/2 |
1/2 |
10.9 |
3.21 |
1.12 |
3.50 |
1.49 |
1.06 |
1.20 |
.80 |
.62 |
|
3 X3 1/2 |
7/16 |
9.8 |
2.88 |
1.11 |
3.30 |
1.37 |
1.08 |
1.31 |
.88 |
.68 |
|
3 X3 1/2 |
3/8 |
8.5 |
2.49 |
1.09 |
2.90 |
1.21 |
1.09 |
.93 |
.62 |
.61 |
|
3 X2 1/2 |
3/8 |
7.2 |
2.10 |
.71 |
1.10 |
.60 |
.72 |
.89 |
.60 |
.66 |
|
3 X2 1/2 |
5/16 |
6.1 |
1.80 |
.68 |
.94 |
.52 |
.73 |
.75 |
.50 |
.65 |
|
3 X2 |
3/8 |
6.4 |
1.88 |
.55 |
.53 |
.37 |
.56 |
.85 |
.57 |
.71 |
|
3 X 1 1/2 |
3/8 |
5.7 |
1.68 |
.40 |
.22 |
.20 |
.34 |
.85 |
.57 |
.75 |
|
2 1/2X3 |
3/8 |
7.2 |
2.10 |
.97 |
1.80 |
.87 |
.92 |
.54 |
.43 |
.51 |
|
2 1/2X3 |
5/16 |
6.1 |
1.80 |
.92 |
1.60 |
.76 |
.94 |
.44 |
.35 |
.51 |
|
2 1/4X1 1/4 |
1/4 |
3.1 |
.90 |
.32 |
.10 |
.11 |
.34 |
.24 |
.23 |
.54 |
* Distance measured from outside of flange.
 
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building construction, trades, structural design, masonry, bricklaying, carpentry, joinery, roofing, plastering, painting, plumbing, lighting, heating, ventilation
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