The Unistrut P5001 1-5/8″ x 6-1/2″ back-to-back Unistrut channel is our tallest back-to-back member and has a 12 ga (.105″) wall.
| Elements of Section – P5001 | ||
| Area of Section | 1.793 in2 (11.6 cm2) | |
| Axis 1-1 | Axis 2-2 | |
| Moment of Inertia (I) | 6.227 in4 (259.2 cm4) | 0.866 in4 (36.0 cm4) |
| Section Modulus (S) | 1.916 in3 (31.4 cm3) | 1.066 in3 (17.5 cm3) |
| Radius of Gyration (r) | 1.864 in(4.7 cm) | 0.695 in(1.8 cm) |
| Column Loading – P5001 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 10,670 39,230 38,030 36,210 34,240 36 10,350 36,450 34,240 31,200 28,260 48 9,940 33,220 30,200 26,430 23,190 60 9,290 29,950 26,430 22,470 19,380 72 8,560 26,880 23,190 19,380 16,450 84 7,860 24,140 20,520 17,040 12,090 96 7,220 21,790 18,370 13,330 9,250 108 6,600 19,790 16,450 10,530 7,310 120 5,760 18,130 13,330 8,530 * 144 4,390 14,020 9,250 * * 168 3,420 10,300 6,800 * * *KL/r > 200 |
| Beam Loading – P5001 | ||||||
| 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 | *6,890 | 0.01 | *6,890 | *6,890 | *6,890 | 1.00 |
| 36 | *6,890 | 0.02 | *6,890 | *6,890 | *6,890 | 1.00 |
| 48 | *6,890 | 0.05 | *6,890 | *6,890 | *6,890 | 0.97 |
| 60 | 6,420 | 0.10 | 6,420 | 6,420 | 6,420 | 0.90 |
| 72 | 5,350 | 0.14 | 5,350 | 5,350 | 5,350 | 0.83 |
| 84 | 4,590 | 0.19 | 4,590 | 4,590 | 4,590 | 0.76 |
| 96 | 4,020 | 0.25 | 4,020 | 4,020 | 4,020 | 0.68 |
| 108 | 3,570 | 0.32 | 3,570 | 3,570 | 3,360 | 0.61 |
| 120 | 3,210 | 0.39 | 3,210 | 3,210 | 2,720 | 0.54 |
| 144 | 2,680 | 0.57 | 2,680 | 2,680 | 1,890 | 0.43 |
| 168 | 2,290 | 0.77 | 2,290 | 2,080 | 1,390 | 0.35 |
| 192 | 2,010 | 1.01 | 2,010 | 1,590 | 1,060 | 0.30 |
| 216 | 1,780 | 1.27 | 1,680 | 1,260 | 840 | 0.27 |
| 240 | 1,610 | 1.58 | 1,360 | 1,020 | 680 | 0.24 |
| *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.
