Aluminum I Beam: 8.00 × 6.181

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Aluminum I Beam » 8.00 × 6.181
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 = 59.69 in4) for the 8.00 × 6.181 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: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 6.18 9.71 × 10-6 4.47 7.00 1.10 × 10-5 5.07 8.00 1.26 × 10-5 5.79 9.00 1.41 × 10-5 6.51 10.0 1.57 × 10-5 7.24 20.0 3.14 × 10-5 14.5 30.0 4.71 × 10-5 21.7 40.0 6.28 × 10-5 28.9 50.0 7.85 × 10-5 36.2 60.0 9.42 × 10-5 43.4 70.0 1.10 × 10-4 50.7 80.0 1.26 × 10-4 57.9 90.0 1.41 × 10-4 65.1 100 1.57 × 10-4 72.4 200 3.14 × 10-4 145 300 4.71 × 10-4 217 400 6.28 × 10-4 289 500 7.85 × 10-4 362 600 9.42 × 10-4 434 700 0.00110 507 800 0.00126 579 900 0.00141 651 1000 0.00157 724 2000 0.00314 1450 3000 0.00471 2170 4000 0.00628 2890 5000 0.00785 3620 6000 0.00942 4340 7000 0.0110 5070 8000 0.0126 5790 9000 0.0141 6510 1.00 × 104 0.0157 7240 2.00 × 104 0.0314 1.45 × 104 3.00 × 104 0.0471 2.17 × 104 4.00 × 104 0.0628 2.89 × 104 5.00 × 104 0.0785 3.62 × 104 6.00 × 104 0.0942 4.34 × 104 7.00 × 104 0.110 5.07 × 104 8.00 × 104 0.126 5.79 × 104 9.00 × 104 0.141 6.51 × 104 1.00 × 105 0.157 7.24 × 104 1.05 × 105 0.165 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 6.18 7.49 × 10-5 12.4 7.00 8.48 × 10-5 14.1 8.00 9.69 × 10-5 16.1 9.00 1.09 × 10-4 18.1 10.0 1.21 × 10-4 20.1 20.0 2.42 × 10-4 40.2 30.0 3.64 × 10-4 60.3 40.0 4.85 × 10-4 80.4 50.0 6.06 × 10-4 101 60.0 7.27 × 10-4 121 70.0 8.48 × 10-4 141 80.0 9.69 × 10-4 161 90.0 0.00109 181 100 0.00121 201 200 0.00242 402 300 0.00364 603 400 0.00485 804 500 0.00606 1010 600 0.00727 1210 700 0.00848 1410 800 0.00969 1610 900 0.0109 1810 1000 0.0121 2010 2000 0.0242 4020 3000 0.0364 6030 4000 0.0485 8040 5000 0.0606 1.01 × 104 6000 0.0727 1.21 × 104 7000 0.0848 1.41 × 104 8000 0.0969 1.61 × 104 9000 0.109 1.81 × 104 1.00 × 104 0.121 2.01 × 104 2.00 × 104 0.242 4.02 × 104 3.00 × 104 0.364 6.03 × 104 3.79 × 104 0.459 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 6.18 0.00120 49.7 7.00 0.00136 56.3 8.00 0.00155 64.3 9.00 0.00175 72.4 10.0 0.00194 80.4 20.0 0.00388 161 30.0 0.00582 241 40.0 0.00776 322 50.0 0.00969 402 60.0 0.0116 482 70.0 0.0136 563 80.0 0.0155 643 90.0 0.0175 724 100 0.0194 804 200 0.0388 1610 300 0.0582 2410 400 0.0776 3220 500 0.0969 4020 600 0.116 4820 700 0.136 5630 800 0.155 6430 900 0.175 7240 1000 0.194 8040 2000 0.388 1.61 × 104 3000 0.582 2.41 × 104 4000 0.776 3.22 × 104 5000 0.969 4.02 × 104 6000 1.16 4.82 × 104 7000 1.36 5.63 × 104 8000 1.55 6.43 × 104 9000 1.75 7.24 × 104 9470 1.84 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 6.18 0.00607 112 7.00 0.00687 127 8.00 0.00785 145 9.00 0.00883 163 10.0 0.00982 181 20.0 0.0196 362 30.0 0.0294 543 40.0 0.0393 724 50.0 0.0491 905 60.0 0.0589 1090 70.0 0.0687 1270 80.0 0.0785 1450 90.0 0.0883 1630 100 0.0982 1810 200 0.196 3620 300 0.294 5430 400 0.393 7240 500 0.491 9050 600 0.589 1.09 × 104 700 0.687 1.27 × 104 800 0.785 1.45 × 104 900 0.883 1.63 × 104 1000 0.982 1.81 × 104 2000 1.96 3.62 × 104 3000 2.94 5.43 × 104 4000 3.93 7.24 × 104 4210 4.13 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 6.18 0.0192 199 7.00 0.0217 225 8.00 0.0248 257 9.00 0.0279 289 10.0 0.0310 322 20.0 0.0620 643 30.0 0.0931 965 40.0 0.124 1290 50.0 0.155 1610 60.0 0.186 1930 70.0 0.217 2250 80.0 0.248 2570 90.0 0.279 2890 100 0.310 3220 200 0.620 6430 300 0.931 9650 400 1.24 1.29 × 104 500 1.55 1.61 × 104 600 1.86 1.93 × 104 700 2.17 2.25 × 104 800 2.48 2.57 × 104 900 2.79 2.89 × 104 1000 3.10 3.22 × 104 2000 6.20 6.43 × 104 2370 7.34 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 6.18 0.0468 311 7.00 0.0530 352 8.00 0.0606 402 9.00 0.0682 452 10.0 0.0757 503 20.0 0.151 1010 30.0 0.227 1510 40.0 0.303 2010 50.0 0.379 2510 60.0 0.454 3020 70.0 0.530 3520 80.0 0.606 4020 90.0 0.682 4520 100 0.757 5030 200 1.51 1.01 × 104 300 2.27 1.51 × 104 400 3.03 2.01 × 104 500 3.79 2.51 × 104 600 4.54 3.02 × 104 700 5.30 3.52 × 104 800 6.06 4.02 × 104 900 6.82 4.52 × 104 1000 7.57 5.03 × 104 1520 11.5 7.61 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 6.18 0.0971 447 7.00 0.110 507 8.00 0.126 579 9.00 0.141 651 10.0 0.157 724 20.0 0.314 1450 30.0 0.471 2170 40.0 0.628 2890 50.0 0.785 3620 60.0 0.942 4340 70.0 1.10 5070 80.0 1.26 5790 90.0 1.41 6510 100 1.57 7240 200 3.14 1.45 × 104 300 4.71 2.17 × 104 400 6.28 2.89 × 104 500 7.85 3.62 × 104 509 8.00 3.69 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 6.18 0.307 795 7.00 0.347 901 8.00 0.397 1030 9.00 0.447 1160 10.0 0.496 1290 20.0 0.993 2570 30.0 1.49 3860 40.0 1.99 5150 50.0 2.48 6430 60.0 2.98 7720 70.0 3.47 9010 80.0 3.97 1.03 × 104 90.0 4.47 1.16 × 104 100 4.96 1.29 × 104 161 8.00 2.07 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 6.18 0.749 1240 7.00 0.848 1410 8.00 0.969 1610 9.00 1.09 1810 10.0 1.21 2010 20.0 2.42 4020 30.0 3.64 6030 40.0 4.85 8040 50.0 6.06 1.01 × 104 60.0 7.27 1.21 × 104 66.0 8.00 1.33 × 104
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 6.18 1.55 1790 7.00 1.76 2030 8.00 2.01 2320 9.00 2.26 2610 10.0 2.51 2890 20.0 5.03 5790 30.0 7.54 8680 31.8 8.00 9220
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 6.18 2.88 2440 7.00 3.26 2760 8.00 3.72 3150 9.00 4.19 3550 10.0 4.66 3940 17.2 8.00 6770
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 6.18 4.91 3180 7.00 5.56 3600 8.00 6.35 4120 9.00 7.15 4630 10.0 7.94 5150 10.1 8.00 5180
 Aluminum I Beam: 8.00 × 6.181 (8.00 inch tall × 6.181 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 6.18 7.86 4030 6.29 8.00 4100