The Unistrut P3001 is a 1-5/8″ x 2-3/4″ back-to-back channel. The P3001 is slightly shorter than the P1001 and has a 12 ga (.105″) wall.
| Elements of Section – P3001 | ||
| Area of Section | 1.000 in2 (6.5 cm2) | |
| Axis 1-1 | Axis 2-2 | |
| Moment of Inertia (I) | 0.591 in4 (24.6 cm4) | 0.407 in4 (16.9 cm4) |
| Section Modulus (S) | 0.430 in3 (7.0 cm3) | 0.501 in3 (8.2 cm3) |
| Radius of Gyration (r) | 0.769 in(2.0 cm) | 0.638 in(1.6 cm) |
| Column Loading – P3001 Unbraced Height (in) Allowable Load at Slot Face (lbs) Max Column Load Applied at C.G. K=0.65 (lbs) K=0.80 (lbs) K=1.0 (lbs) K=1.2 (lbs) 24 5,740 21,780 21,200 20,430 19,720 36 5,620 20,520 19,720 18,830 17,680 48 5,520 19,400 18,570 16,570 14,260 60 5,330 18,510 16,570 13,670 10,810 72 5,030 16,850 14,260 10,810 7,730 84 4,630 14,990 11,930 8,180 5,680 96 4,190 13,090 9,720 6,260 4,350 108 3,720 11,230 7,730 4,950 * 120 3,300 9,460 6,260 4,010 * 144 2,620 6,590 4,350 * * *KL/r > 200 |
| Beam Loading – P3001 | ||||||
| Span (in) | Max Allowable Uniform Load (lbs) | Defl at Uniform load (in) | Uniform Loading at Deflection | Lateral Bracing Reduction Factor | ||
| Span /180 (lbs) | Span /240 (lbs) | Span /360 (lbs) | ||||
| 24 | *2,960 | 0.03 | *2,960 | *2,960 | *2,960 | 1.00 |
| 36 | 2,400 | 0.08 | 2,400 | 2,400 | 2,400 | 1.00 |
| 48 | 1,800 | 0.15 | 1,800 | 1,800 | 1,610 | 1.00 |
| 60 | 1,440 | 0.23 | 1,440 | 1,440 | 1,030 | 0.98 |
| 72 | 1,200 | 0.33 | 1,200 | 1,080 | 720 | 0.95 |
| 84 | 1,030 | 0.46 | 1,030 | 790 | 530 | 0.92 |
| 96 | 900 | 0.59 | 810 | 610 | 400 | 0.88 |
| 108 | 800 | 0.75 | 640 | 480 | 320 | 0.85 |
| 120 | 720 | 0.93 | 520 | 390 | 260 | 0.82 |
| 144 | 600 | 1.34 | 360 | 270 | 180 | 0.76 |
| 168 | 510 | 1.81 | 260 | 200 | 130 | 0.70 |
| 192 | 450 | 2.38 | 200 | 150 | 100 | 0.64 |
| 216 | 400 | 3.01 | 160 | 120 | 80 | 0.58 |
| 240 | 360 | 3.72 | 130 | 100 | – | 0.52 |
| *Load limited by weld shear | ||||||
Notes:
- Above loads include the weight of the member. This weight must be deducted to arrive at the net allowable load the beam will support.
- Long span beams should be supported so as to prevent rotation and twist.
- Allowable uniformly distributed loads are listed for various simple spans, that is, a beam on two supports. If load is concentrated at the center of the span, multiply load from the table by 0.5 and corresponding deflection by 0.8.
- The lateral bracing factor should be multiplied by the load to determine the load retained based on the distance between lateral braces.
