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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Aluminum I Beam » 9.00 × 8.361
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 = 102.02 in4) for the 9.00 × 8.361 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: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 8.36 5.88 × 10-6 4.98 9.00 6.33 × 10-6 5.36 10.0 7.04 × 10-6 5.95 20.0 1.41 × 10-5 11.9 30.0 2.11 × 10-5 17.9 40.0 2.82 × 10-5 23.8 50.0 3.52 × 10-5 29.8 60.0 4.22 × 10-5 35.7 70.0 4.93 × 10-5 41.7 80.0 5.63 × 10-5 47.6 90.0 6.33 × 10-5 53.6 100 7.04 × 10-5 59.5 200 1.41 × 10-4 119 300 2.11 × 10-4 179 400 2.82 × 10-4 238 500 3.52 × 10-4 298 600 4.22 × 10-4 357 700 4.93 × 10-4 417 800 5.63 × 10-4 476 900 6.33 × 10-4 536 1000 7.04 × 10-4 595 2000 0.00141 1190 3000 0.00211 1790 4000 0.00282 2380 5000 0.00352 2980 6000 0.00422 3570 7000 0.00493 4170 8000 0.00563 4760 9000 0.00633 5360 1.00 × 104 0.00704 5950 2.00 × 104 0.0141 1.19 × 104 3.00 × 104 0.0211 1.79 × 104 4.00 × 104 0.0282 2.38 × 104 5.00 × 104 0.0352 2.98 × 104 6.00 × 104 0.0422 3.57 × 104 7.00 × 104 0.0493 4.17 × 104 8.00 × 104 0.0563 4.76 × 104 9.00 × 104 0.0633 5.36 × 104 1.00 × 105 0.0704 5.95 × 104 1.28 × 105 0.0900 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 8.36 4.54 × 10-5 13.8 9.00 4.89 × 10-5 14.9 10.0 5.43 × 10-5 16.5 20.0 1.09 × 10-4 33.1 30.0 1.63 × 10-4 49.6 40.0 2.17 × 10-4 66.2 50.0 2.72 × 10-4 82.7 60.0 3.26 × 10-4 99.2 70.0 3.80 × 10-4 116 80.0 4.34 × 10-4 132 90.0 4.89 × 10-4 149 100 5.43 × 10-4 165 200 0.00109 331 300 0.00163 496 400 0.00217 662 500 0.00272 827 600 0.00326 992 700 0.00380 1160 800 0.00434 1320 900 0.00489 1490 1000 0.00543 1650 2000 0.0109 3310 3000 0.0163 4960 4000 0.0217 6620 5000 0.0272 8270 6000 0.0326 9920 7000 0.0380 1.16 × 104 8000 0.0434 1.32 × 104 9000 0.0489 1.49 × 104 1.00 × 104 0.0543 1.65 × 104 2.00 × 104 0.109 3.31 × 104 3.00 × 104 0.163 4.96 × 104 4.00 × 104 0.217 6.62 × 104 4.60 × 104 0.250 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 8.36 7.26 × 10-4 55.3 9.00 7.82 × 10-4 59.5 10.0 8.69 × 10-4 66.2 20.0 0.00174 132 30.0 0.00261 198 40.0 0.00348 265 50.0 0.00434 331 60.0 0.00521 397 70.0 0.00608 463 80.0 0.00695 529 90.0 0.00782 595 100 0.00869 662 200 0.0174 1320 300 0.0261 1980 400 0.0348 2650 500 0.0434 3310 600 0.0521 3970 700 0.0608 4630 800 0.0695 5290 900 0.0782 5950 1000 0.0869 6620 2000 0.174 1.32 × 104 3000 0.261 1.98 × 104 4000 0.348 2.65 × 104 5000 0.434 3.31 × 104 6000 0.521 3.97 × 104 7000 0.608 4.63 × 104 8000 0.695 5.29 × 104 9000 0.782 5.95 × 104 1.00 × 104 0.869 6.62 × 104 1.15 × 104 1.00 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 8.36 0.00368 124 9.00 0.00396 134 10.0 0.00440 149 20.0 0.00880 298 30.0 0.0132 447 40.0 0.0176 595 50.0 0.0220 744 60.0 0.0264 893 70.0 0.0308 1040 80.0 0.0352 1190 90.0 0.0396 1340 100 0.0440 1490 200 0.0880 2980 300 0.132 4470 400 0.176 5950 500 0.220 7440 600 0.264 8930 700 0.308 1.04 × 104 800 0.352 1.19 × 104 900 0.396 1.34 × 104 1000 0.440 1.49 × 104 2000 0.880 2.98 × 104 3000 1.32 4.47 × 104 4000 1.76 5.95 × 104 5000 2.20 7.44 × 104 5110 2.25 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 8.36 0.0116 221 9.00 0.0125 238 10.0 0.0139 265 20.0 0.0278 529 30.0 0.0417 794 40.0 0.0556 1060 50.0 0.0695 1320 60.0 0.0834 1590 70.0 0.0973 1850 80.0 0.111 2120 90.0 0.125 2380 100 0.139 2650 200 0.278 5290 300 0.417 7940 400 0.556 1.06 × 104 500 0.695 1.32 × 104 600 0.834 1.59 × 104 700 0.973 1.85 × 104 800 1.11 2.12 × 104 900 1.25 2.38 × 104 1000 1.39 2.65 × 104 2000 2.78 5.29 × 104 2880 4.00 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 8.36 0.0284 346 9.00 0.0305 372 10.0 0.0339 414 20.0 0.0679 827 30.0 0.102 1240 40.0 0.136 1650 50.0 0.170 2070 60.0 0.204 2480 70.0 0.238 2890 80.0 0.272 3310 90.0 0.305 3720 100 0.339 4140 200 0.679 8270 300 1.02 1.24 × 104 400 1.36 1.65 × 104 500 1.70 2.07 × 104 600 2.04 2.48 × 104 700 2.38 2.89 × 104 800 2.72 3.31 × 104 900 3.05 3.72 × 104 1000 3.39 4.14 × 104 1840 6.25 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 8.36 0.0588 498 9.00 0.0633 536 10.0 0.0704 595 20.0 0.141 1190 30.0 0.211 1790 40.0 0.282 2380 50.0 0.352 2980 60.0 0.422 3570 70.0 0.493 4170 80.0 0.563 4760 90.0 0.633 5360 100 0.704 5950 200 1.41 1.19 × 104 300 2.11 1.79 × 104 400 2.82 2.38 × 104 500 3.52 2.98 × 104 600 4.22 3.57 × 104 700 4.93 4.17 × 104 800 5.63 4.76 × 104 900 6.33 5.36 × 104 1000 7.04 5.95 × 104 1280 9.00 7.61 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 8.36 0.186 885 9.00 0.200 953 10.0 0.222 1060 20.0 0.445 2120 30.0 0.667 3180 40.0 0.890 4230 50.0 1.11 5290 60.0 1.33 6350 70.0 1.56 7410 80.0 1.78 8470 90.0 2.00 9530 100 2.22 1.06 × 104 200 4.45 2.12 × 104 300 6.67 3.18 × 104 400 8.90 4.23 × 104 405 9.00 4.28 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 8.36 0.454 1380 9.00 0.489 1490 10.0 0.543 1650 20.0 1.09 3310 30.0 1.63 4960 40.0 2.17 6620 50.0 2.72 8270 60.0 3.26 9920 70.0 3.80 1.16 × 104 80.0 4.34 1.32 × 104 90.0 4.89 1.49 × 104 100 5.43 1.65 × 104 166 9.00 2.74 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 8.36 0.942 1990 9.00 1.01 2140 10.0 1.13 2380 20.0 2.25 4760 30.0 3.38 7150 40.0 4.50 9530 50.0 5.63 1.19 × 104 60.0 6.76 1.43 × 104 70.0 7.88 1.67 × 104 79.9 9.00 1.90 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 8.36 1.74 2710 9.00 1.88 2920 10.0 2.09 3240 20.0 4.17 6480 30.0 6.26 9730 40.0 8.35 1.30 × 104 43.1 9.00 1.40 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 8.36 2.98 3540 9.00 3.20 3810 10.0 3.56 4230 20.0 7.12 8470 25.3 9.00 1.07 × 104
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 8.36 4.77 4480 9.00 5.13 4820 10.0 5.70 5360 15.8 9.00 8460
 Aluminum I Beam: 9.00 × 8.361 (9.00 inch tall × 8.361 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 8.36 7.26 5530 9.00 7.82 5950 10.0 8.69 6620 10.4 9.00 6850