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Edge
Tubes
Allowable Span vs. Load & Load-Type
 |
|
| Size of Rectangular
Tube (inches); minor axis bending (a-g) |
Max
Load = 500 lbs. |
Max
Load = 1,000 lbs. |
| Concentrated |
Uniform |
Concentrated |
Uniform |
| (in.) |
(ft. & in.) |
(in.) |
(ft. & in.) |
(in.) |
(ft. & in.) |
(in.) |
(ft. & in.) |
| HSS 3" x 1.5" x 1/8" |
64 |
5' - 4" |
81 |
6' - 9" |
45 |
3' - 9" |
57 |
4' - 9" |
| HSS 3" x 1.5" x 3/16" |
73 |
6' - 1" |
93 |
7' - 9" |
52 |
4' - 4" |
65 |
5' - 5" |
| HSS 3" x 1.5" x 1/4" |
79 |
6' - 7" |
100 |
8' - 4" |
56 |
4' - 8" |
70 |
5' - 10" |
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| © 2007 Chicago
Clamp Company |
|
a)
Short dimension of tube cross-section is vertical, parallel to load
(minor axis bending).
b) Allowable, net concentrated load, per tube, may be located anywhere
in the span. Weight of tube has been accounted for.
c) Allowable uniform load is the net loading on the tube. Weight of tube
has been accounted for.
d) allowable loads are based on 46 ksi minimum yield steel (ASTM A 500,
Gr. B) and the AISC specification.
e) All net (applied) loads are governed by deflection limit of Span / 240;
(e.g., 0.250" for 5' span)
f) Tube-wall thicknesses are nominal. Minimum is 0.93 times nominal, per
2005 AISC specification.
g) Allowable loads ("max" loads) arebased on a safety factor
of 2.0. |
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