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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two 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 two equal spans, we compute the displacement at the middle of each span and the maximum normal stress occuring at the center support 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 1.91 × 10-5 8.96 4.00 2.06 × 10-5 9.68 5.00 2.58 × 10-5 12.1 6.00 3.09 × 10-5 14.5 7.00 3.61 × 10-5 16.9 8.00 4.12 × 10-5 19.4 9.00 4.64 × 10-5 21.8 10.0 5.15 × 10-5 24.2 20.0 1.03 × 10-4 48.4 30.0 1.55 × 10-4 72.6 40.0 2.06 × 10-4 96.8 50.0 2.58 × 10-4 121 60.0 3.09 × 10-4 145 70.0 3.61 × 10-4 169 80.0 4.12 × 10-4 194 90.0 4.64 × 10-4 218 100 5.15 × 10-4 242 200 0.00103 484 300 0.00155 726 400 0.00206 968 500 0.00258 1210 600 0.00309 1450 700 0.00361 1690 800 0.00412 1940 900 0.00464 2180 1000 0.00515 2420 2000 0.0103 4840 3000 0.0155 7260 4000 0.0206 9680 5000 0.0258 1.21 × 104 6000 0.0309 1.45 × 104 7000 0.0361 1.69 × 104 8000 0.0412 1.94 × 104 9000 0.0464 2.18 × 104 1.00 × 104 0.0515 2.42 × 104 2.00 × 104 0.103 4.84 × 104 3.00 × 104 0.155 7.26 × 104 3.15 × 104 0.162 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 1.47 × 10-4 24.9 4.00 1.59 × 10-4 26.9 5.00 1.99 × 10-4 33.6 6.00 2.38 × 10-4 40.4 7.00 2.78 × 10-4 47.1 8.00 3.18 × 10-4 53.8 9.00 3.58 × 10-4 60.5 10.0 3.97 × 10-4 67.3 20.0 7.95 × 10-4 135 30.0 0.00119 202 40.0 0.00159 269 50.0 0.00199 336 60.0 0.00238 404 70.0 0.00278 471 80.0 0.00318 538 90.0 0.00358 605 100 0.00397 673 200 0.00795 1350 300 0.0119 2020 400 0.0159 2690 500 0.0199 3360 600 0.0238 4040 700 0.0278 4710 800 0.0318 5380 900 0.0358 6050 1000 0.0397 6730 2000 0.0795 1.35 × 104 3000 0.119 2.02 × 104 4000 0.159 2.69 × 104 5000 0.199 3.36 × 104 6000 0.238 4.04 × 104 7000 0.278 4.71 × 104 8000 0.318 5.38 × 104 9000 0.358 6.05 × 104 1.00 × 104 0.397 6.73 × 104 1.13 × 104 0.450 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 0.00235 99.5 4.00 0.00254 108 5.00 0.00318 135 6.00 0.00382 161 7.00 0.00445 188 8.00 0.00509 215 9.00 0.00572 242 10.0 0.00636 269 20.0 0.0127 538 30.0 0.0191 807 40.0 0.0254 1080 50.0 0.0318 1350 60.0 0.0382 1610 70.0 0.0445 1880 80.0 0.0509 2150 90.0 0.0572 2420 100 0.0636 2690 200 0.127 5380 300 0.191 8070 400 0.254 1.08 × 104 500 0.318 1.35 × 104 600 0.382 1.61 × 104 700 0.445 1.88 × 104 800 0.509 2.15 × 104 900 0.572 2.42 × 104 1000 0.636 2.69 × 104 2000 1.27 5.38 × 104 2830 1.80 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 0.0119 224 4.00 0.0129 242 5.00 0.0161 303 6.00 0.0193 363 7.00 0.0225 424 8.00 0.0258 484 9.00 0.0290 545 10.0 0.0322 605 20.0 0.0644 1210 30.0 0.0966 1820 40.0 0.129 2420 50.0 0.161 3030 60.0 0.193 3630 70.0 0.225 4240 80.0 0.258 4840 90.0 0.290 5450 100 0.322 6050 200 0.644 1.21 × 104 300 0.966 1.82 × 104 400 1.29 2.42 × 104 500 1.61 3.03 × 104 600 1.93 3.63 × 104 700 2.25 4.24 × 104 800 2.58 4.84 × 104 900 2.90 5.45 × 104 1000 3.22 6.05 × 104 1260 4.05 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 0.0376 398 4.00 0.0407 430 5.00 0.0509 538 6.00 0.0610 646 7.00 0.0712 753 8.00 0.0814 861 9.00 0.0916 968 10.0 0.102 1080 20.0 0.203 2150 30.0 0.305 3230 40.0 0.407 4300 50.0 0.509 5380 60.0 0.610 6460 70.0 0.712 7530 80.0 0.814 8610 90.0 0.916 9680 100 1.02 1.08 × 104 200 2.03 2.15 × 104 300 3.05 3.23 × 104 400 4.07 4.30 × 104 491 5.00 5.29 × 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 0.0919 622 4.00 0.0994 673 5.00 0.124 841 6.00 0.149 1010 7.00 0.174 1180 8.00 0.199 1350 9.00 0.224 1510 10.0 0.248 1680 20.0 0.497 3360 30.0 0.745 5040 40.0 0.994 6730 50.0 1.24 8410 60.0 1.49 1.01 × 104 70.0 1.74 1.18 × 104 80.0 1.99 1.35 × 104 90.0 2.24 1.51 × 104 100 2.48 1.68 × 104 200 4.97 3.36 × 104 201 5.00 3.38 × 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 0.191 896 4.00 0.206 968 5.00 0.258 1210 6.00 0.309 1450 7.00 0.361 1690 8.00 0.412 1940 9.00 0.464 2180 10.0 0.515 2420 20.0 1.03 4840 30.0 1.55 7260 40.0 2.06 9680 50.0 2.58 1.21 × 104 60.0 3.09 1.45 × 104 70.0 3.61 1.69 × 104 80.0 4.12 1.94 × 104 90.0 4.64 2.18 × 104 97.1 5.00 2.35 × 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 0.602 1590 4.00 0.651 1720 5.00 0.814 2150 6.00 0.977 2580 7.00 1.14 3010 8.00 1.30 3440 9.00 1.47 3870 10.0 1.63 4300 20.0 3.26 8610 30.0 4.88 1.29 × 104 30.7 5.00 1.32 × 104
 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 1.47 2490 4.00 1.59 2690 5.00 1.99 3360 6.00 2.38 4040 7.00 2.78 4710 8.00 3.18 5380 9.00 3.58 6050 10.0 3.97 6730 12.6 5.00 8460
 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 3.05 3580 4.00 3.30 3870 5.00 4.12 4840 6.00 4.94 5810 6.07 5.00 5880
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