Tube Framing Clamp System
Allowable Load (pounds) vs. Span a-h
 |
|
| Tube Size (inches) |
Load Type |
Span
(feet) |
| 3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
| HSS 4" x 2" x 1/8" |
concentrated |
2,000 |
2,000 |
2,000 |
2,000 |
1,801 |
1,572 |
1,318 |
1,067 |
| uniform |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
1,708 |
| HSS 4" x 2" x 3/16" |
concentrated |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
1,820 |
1,474 |
| uniform |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
2,000 |
|
|
| Component Capacities |
Download
Positive |
Uplift
Negative |
| Allowable Load (pounds) |
| Standard End Clamp |
750 |
- |
| Joist Grip end Clamp |
1,000 |
1,000 |
| T-Bracket |
1,000 |
1,000 |
| InLine End Clamp |
1,000 |
1,000 |
| Girder Clamp |
1,000 |
- |
| Cross Support Bracket |
1,000 |
- |
|
|
a) Allowable concentrated load at middle of span. Allowable
loads are net (weight of tube has been accounted for).
b) Multiple loads, that are symmetrically placed and whose
total equals the tabulated value, may be used.
c) The reaction to each clamp bracket must be limited to a net
value of the clamp's charted capacity.
d) Allowable loads have been limited to 2,000 lbs maximum.
e) Allowable loads are based on 46 ksi minimum yield steel
(A500, Gr. B), the AISC specification and a safety factor of 2.0.
f) Loads in bold (1,067) are governed by applied-load deflection
limit of Span / 240; (e.g., 0.50" for 10' span).
g) Tube's 4" dimension is vertical. Span is horizontal.
h) Tube weights: 4.75 lbs/ft for 1/8" wall, and 6.87 lbs/ft for 3/16"
wall. Weights and thicknesses are nominal. |
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