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<strong>HSS</strong> Beam Load Tables<br />
Square Structural Steel Tubing<br />
Total Allowable Uniform Load in Kips for Beams with Lateral Support<br />
Fy=46<br />
y<br />
x<br />
x<br />
y<br />
ERW<br />
Nominal Size<br />
Wall Thickness<br />
Weight Per Foot<br />
Design Wall Thickness<br />
7 X 7<br />
5/8<br />
50.81<br />
1/2<br />
42.05<br />
3/8<br />
32.58<br />
5/16<br />
27.59<br />
1/4<br />
22.42<br />
∆<br />
Inches<br />
3/16<br />
17.08<br />
0.581 0.465 0.349 0.291 0.233 0.174 *<br />
∆<br />
Inches<br />
Span in Feet<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
10<br />
11<br />
12<br />
13<br />
14<br />
15<br />
16<br />
270 233 180 150 120 0.02 90 0.02<br />
180 155 125 108 90 0.04 61 0.04<br />
135 116 94 81 67 0.07 46 0.06<br />
108 93 75 65 54 0.11 37 0.10<br />
90 78 63 54 45 0.16 31 0.14<br />
77 67 54 46 38 0.22 26 0.19<br />
68 58 47 40 34 0.29 23 0.25<br />
60 52 42 36 30 0.36 20 0.32<br />
54 47 38 32 27 0.45 18 0.40<br />
49 42 34 29 24 0.54 17 0.48<br />
45 39 31 27 22 0.65 15 0.57<br />
42 36 29 25 21 0.76 14 0.67<br />
39 33 27 23 19 0.88 13 0.78<br />
36 31 25 22 18 1.01 12 0.89<br />
34 29 24 20 17 1.15 – –<br />
31 26 21 18 15 1.04 12 1.02<br />
WEB SHEAR AND PROPERTY VALUES<br />
V, kips<br />
150 120 90 75 60 45<br />
S x , In. 3 26.7 23.0 18.6 16.0 13.3 10.0 **<br />
Loads above heavy horizontal line based upon maximum shear stress, F v , equal to 0.40 F y .<br />
Loads in shaded area based upon maximum allowable bending stress, F b , equal to 0.60 F y .<br />
* Slender element section. Width-thickness ratio exceeds AISC “Specification” Section B5.1 limiting value of 238/ Fy.<br />
** Modified value of section modulus calculated in accordance with AISC “Specification” Appendix Section B5.2.b.<br />
43
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