Aluminum I Beam: 5.00 × 3.700

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Aluminum I Beam » 5.00 × 3.700
Aluminum I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress occuring at the second and third supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 13.94 in4) for the 5.00 × 3.700 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: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 3.70 2.49 × 10-5 7.17 4.00 2.69 × 10-5 7.75 5.00 3.36 × 10-5 9.68 6.00 4.04 × 10-5 11.6 7.00 4.71 × 10-5 13.6 8.00 5.38 × 10-5 15.5 9.00 6.05 × 10-5 17.4 10.0 6.73 × 10-5 19.4 20.0 1.35 × 10-4 38.7 30.0 2.02 × 10-4 58.1 40.0 2.69 × 10-4 77.5 50.0 3.36 × 10-4 96.8 60.0 4.04 × 10-4 116 70.0 4.71 × 10-4 136 80.0 5.38 × 10-4 155 90.0 6.05 × 10-4 174 100 6.73 × 10-4 194 200 0.00135 387 300 0.00202 581 400 0.00269 775 500 0.00336 968 600 0.00404 1160 700 0.00471 1360 800 0.00538 1550 900 0.00605 1740 1000 0.00673 1940 2000 0.0135 3870 3000 0.0202 5810 4000 0.0269 7750 5000 0.0336 9680 6000 0.0404 1.16 × 104 7000 0.0471 1.36 × 104 8000 0.0538 1.55 × 104 9000 0.0605 1.74 × 104 1.00 × 104 0.0673 1.94 × 104 2.00 × 104 0.135 3.87 × 104 3.00 × 104 0.202 5.81 × 104 3.93 × 104 0.264 7.61 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 3.70 1.92 × 10-4 19.9 4.00 2.08 × 10-4 21.5 5.00 2.59 × 10-4 26.9 6.00 3.11 × 10-4 32.3 7.00 3.63 × 10-4 37.7 8.00 4.15 × 10-4 43.0 9.00 4.67 × 10-4 48.4 10.0 5.19 × 10-4 53.8 20.0 0.00104 108 30.0 0.00156 161 40.0 0.00208 215 50.0 0.00259 269 60.0 0.00311 323 70.0 0.00363 377 80.0 0.00415 430 90.0 0.00467 484 100 0.00519 538 200 0.0104 1080 300 0.0156 1610 400 0.0208 2150 500 0.0259 2690 600 0.0311 3230 700 0.0363 3770 800 0.0415 4300 900 0.0467 4840 1000 0.0519 5380 2000 0.104 1.08 × 104 3000 0.156 1.61 × 104 4000 0.208 2.15 × 104 5000 0.259 2.69 × 104 6000 0.311 3.23 × 104 7000 0.363 3.77 × 104 8000 0.415 4.30 × 104 9000 0.467 4.84 × 104 1.00 × 104 0.519 5.38 × 104 1.42 × 104 0.734 7.61 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 3.70 0.00307 79.6 4.00 0.00332 86.1 5.00 0.00415 108 6.00 0.00498 129 7.00 0.00581 151 8.00 0.00664 172 9.00 0.00747 194 10.0 0.00830 215 20.0 0.0166 430 30.0 0.0249 646 40.0 0.0332 861 50.0 0.0415 1080 60.0 0.0498 1290 70.0 0.0581 1510 80.0 0.0664 1720 90.0 0.0747 1940 100 0.0830 2150 200 0.166 4300 300 0.249 6460 400 0.332 8610 500 0.415 1.08 × 104 600 0.498 1.29 × 104 700 0.581 1.51 × 104 800 0.664 1.72 × 104 900 0.747 1.94 × 104 1000 0.830 2.15 × 104 2000 1.66 4.30 × 104 3000 2.49 6.46 × 104 3540 2.94 7.61 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 3.70 0.0156 179 4.00 0.0168 194 5.00 0.0210 242 6.00 0.0252 291 7.00 0.0294 339 8.00 0.0336 387 9.00 0.0378 436 10.0 0.0420 484 20.0 0.0841 968 30.0 0.126 1450 40.0 0.168 1940 50.0 0.210 2420 60.0 0.252 2910 70.0 0.294 3390 80.0 0.336 3870 90.0 0.378 4360 100 0.420 4840 200 0.841 9680 300 1.26 1.45 × 104 400 1.68 1.94 × 104 500 2.10 2.42 × 104 600 2.52 2.91 × 104 700 2.94 3.39 × 104 800 3.36 3.87 × 104 900 3.78 4.36 × 104 1000 4.20 4.84 × 104 1570 6.61 7.61 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 3.70 0.0492 319 4.00 0.0531 344 5.00 0.0664 430 6.00 0.0797 516 7.00 0.0930 603 8.00 0.106 689 9.00 0.120 775 10.0 0.133 861 20.0 0.266 1720 30.0 0.399 2580 40.0 0.531 3440 50.0 0.664 4300 60.0 0.797 5160 70.0 0.930 6030 80.0 1.06 6890 90.0 1.20 7750 100 1.33 8610 200 2.66 1.72 × 104 300 3.99 2.58 × 104 376 5.00 3.24 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 3.70 0.120 498 4.00 0.130 538 5.00 0.162 673 6.00 0.195 807 7.00 0.227 942 8.00 0.259 1080 9.00 0.292 1210 10.0 0.324 1350 20.0 0.649 2690 30.0 0.973 4040 40.0 1.30 5380 50.0 1.62 6730 60.0 1.95 8070 70.0 2.27 9420 80.0 2.59 1.08 × 104 90.0 2.92 1.21 × 104 100 3.24 1.35 × 104 154 5.00 2.07 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 3.70 0.249 717 4.00 0.269 775 5.00 0.336 968 6.00 0.404 1160 7.00 0.471 1360 8.00 0.538 1550 9.00 0.605 1740 10.0 0.673 1940 20.0 1.35 3870 30.0 2.02 5810 40.0 2.69 7750 50.0 3.36 9680 60.0 4.04 1.16 × 104 70.0 4.71 1.36 × 104 74.3 5.00 1.44 × 104
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 3.70 0.786 1270 4.00 0.850 1380 5.00 1.06 1720 6.00 1.28 2070 7.00 1.49 2410 8.00 1.70 2750 9.00 1.91 3100 10.0 2.13 3440 20.0 4.25 6890 23.5 5.00 8100
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 3.70 1.92 1990 4.00 2.08 2150 5.00 2.59 2690 6.00 3.11 3230 7.00 3.63 3770 8.00 4.15 4300 9.00 4.67 4840 9.64 5.00 5180
 Aluminum I Beam: 5.00 × 3.700 (5.00 inch tall × 3.700 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 3.70 3.98 2870 4.00 4.30 3100 4.65 5.00 3600