Aluminum I Beam: 4.00 × 2.793

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Aluminum I Beam » 4.00 × 2.793
Aluminum I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 6.71 in4) for the 4.00 × 2.793 Aluminum I Beam and the typical Young's modulus (E = 1.015 × 107 psi) of Aluminum Alloys. Note that the typical yielding stress of Aluminum Alloys can range from 4061 to 7.614 × 104 psi. The purpose of this page is to give a rough estimation of the load-bearing capacity of this particular beam, rather than a guideline for designing actual building structures. Please check your local building codes for regulatory requirements.

Note: The weight of the beam itself is not included in the calculation.

 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 2.79 3.62 × 10-5 9.63 3.00 3.88 × 10-5 10.3 4.00 5.18 × 10-5 13.8 5.00 6.47 × 10-5 17.2 6.00 7.77 × 10-5 20.7 7.00 9.06 × 10-5 24.1 8.00 1.04 × 10-4 27.6 9.00 1.16 × 10-4 31.0 10.0 1.29 × 10-4 34.5 20.0 2.59 × 10-4 69.0 30.0 3.88 × 10-4 103 40.0 5.18 × 10-4 138 50.0 6.47 × 10-4 172 60.0 7.77 × 10-4 207 70.0 9.06 × 10-4 241 80.0 0.00104 276 90.0 0.00116 310 100 0.00129 345 200 0.00259 690 300 0.00388 1030 400 0.00518 1380 500 0.00647 1720 600 0.00777 2070 700 0.00906 2410 800 0.0104 2760 900 0.0116 3100 1000 0.0129 3450 2000 0.0259 6900 3000 0.0388 1.03 × 104 4000 0.0518 1.38 × 104 5000 0.0647 1.72 × 104 6000 0.0777 2.07 × 104 7000 0.0906 2.41 × 104 8000 0.104 2.76 × 104 9000 0.116 3.10 × 104 1.00 × 104 0.129 3.45 × 104 2.00 × 104 0.259 6.90 × 104 2.21 × 104 0.286 7.61 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 2.79 2.79 × 10-4 26.7 3.00 3.00 × 10-4 28.7 4.00 4.00 × 10-4 38.3 5.00 4.99 × 10-4 47.9 6.00 5.99 × 10-4 57.5 7.00 6.99 × 10-4 67.0 8.00 7.99 × 10-4 76.6 9.00 8.99 × 10-4 86.2 10.0 9.99 × 10-4 95.8 20.0 0.00200 192 30.0 0.00300 287 40.0 0.00400 383 50.0 0.00499 479 60.0 0.00599 575 70.0 0.00699 670 80.0 0.00799 766 90.0 0.00899 862 100 0.00999 958 200 0.0200 1920 300 0.0300 2870 400 0.0400 3830 500 0.0499 4790 600 0.0599 5750 700 0.0699 6700 800 0.0799 7660 900 0.0899 8620 1000 0.0999 9580 2000 0.200 1.92 × 104 3000 0.300 2.87 × 104 4000 0.400 3.83 × 104 5000 0.499 4.79 × 104 6000 0.599 5.75 × 104 7000 0.699 6.70 × 104 7950 0.794 7.61 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 2.79 0.00446 107 3.00 0.00479 115 4.00 0.00639 153 5.00 0.00799 192 6.00 0.00959 230 7.00 0.0112 268 8.00 0.0128 306 9.00 0.0144 345 10.0 0.0160 383 20.0 0.0320 766 30.0 0.0479 1150 40.0 0.0639 1530 50.0 0.0799 1920 60.0 0.0959 2300 70.0 0.112 2680 80.0 0.128 3060 90.0 0.144 3450 100 0.160 3830 200 0.320 7660 300 0.479 1.15 × 104 400 0.639 1.53 × 104 500 0.799 1.92 × 104 600 0.959 2.30 × 104 700 1.12 2.68 × 104 800 1.28 3.06 × 104 900 1.44 3.45 × 104 1000 1.60 3.83 × 104 1990 3.18 7.61 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 2.79 0.0226 241 3.00 0.0243 259 4.00 0.0324 345 5.00 0.0404 431 6.00 0.0485 517 7.00 0.0566 603 8.00 0.0647 690 9.00 0.0728 776 10.0 0.0809 862 20.0 0.162 1720 30.0 0.243 2590 40.0 0.324 3450 50.0 0.404 4310 60.0 0.485 5170 70.0 0.566 6030 80.0 0.647 6900 90.0 0.728 7760 100 0.809 8620 200 1.62 1.72 × 104 300 2.43 2.59 × 104 400 3.24 3.45 × 104 494 4.00 4.26 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 2.79 0.0714 428 3.00 0.0767 460 4.00 0.102 613 5.00 0.128 766 6.00 0.153 919 7.00 0.179 1070 8.00 0.205 1230 9.00 0.230 1380 10.0 0.256 1530 20.0 0.511 3060 30.0 0.767 4600 40.0 1.02 6130 50.0 1.28 7660 60.0 1.53 9190 70.0 1.79 1.07 × 104 80.0 2.05 1.23 × 104 90.0 2.30 1.38 × 104 100 2.56 1.53 × 104 156 4.00 2.40 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 2.79 0.174 669 3.00 0.187 718 4.00 0.250 958 5.00 0.312 1200 6.00 0.375 1440 7.00 0.437 1680 8.00 0.499 1920 9.00 0.562 2150 10.0 0.624 2390 20.0 1.25 4790 30.0 1.87 7180 40.0 2.50 9580 50.0 3.12 1.20 × 104 60.0 3.75 1.44 × 104 64.1 4.00 1.53 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 2.79 0.362 963 3.00 0.388 1030 4.00 0.518 1380 5.00 0.647 1720 6.00 0.777 2070 7.00 0.906 2410 8.00 1.04 2760 9.00 1.16 3100 10.0 1.29 3450 20.0 2.59 6900 30.0 3.88 1.03 × 104 30.9 4.00 1.07 × 104
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 2.79 1.14 1710 3.00 1.23 1840 4.00 1.64 2450 5.00 2.05 3060 6.00 2.45 3680 7.00 2.86 4290 8.00 3.27 4900 9.00 3.68 5520 9.78 4.00 5990
 Aluminum I Beam: 4.00 × 2.793 (4.00 inch tall × 2.793 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 2.79 2.79 2670 3.00 3.00 2870 4.00 4.00 3830 4.00 4.00 3840