Aluminum I Beam: 12.00 × 11.672

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » Aluminum I Beam » 12.00 × 11.672
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 = 255.57 in4) for the 12.00 × 11.672 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: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 11.7 3.97 × 10-6 3.17 20.0 6.80 × 10-6 5.43 30.0 1.02 × 10-5 8.15 40.0 1.36 × 10-5 10.9 50.0 1.70 × 10-5 13.6 60.0 2.04 × 10-5 16.3 70.0 2.38 × 10-5 19.0 80.0 2.72 × 10-5 21.7 90.0 3.06 × 10-5 24.4 100 3.40 × 10-5 27.2 200 6.80 × 10-5 54.3 300 1.02 × 10-4 81.5 400 1.36 × 10-4 109 500 1.70 × 10-4 136 600 2.04 × 10-4 163 700 2.38 × 10-4 190 800 2.72 × 10-4 217 900 3.06 × 10-4 244 1000 3.40 × 10-4 272 2000 6.80 × 10-4 543 3000 0.00102 815 4000 0.00136 1090 5000 0.00170 1360 6000 0.00204 1630 7000 0.00238 1900 8000 0.00272 2170 9000 0.00306 2440 1.00 × 104 0.00340 2720 2.00 × 104 0.00680 5430 3.00 × 104 0.0102 8150 4.00 × 104 0.0136 1.09 × 104 5.00 × 104 0.0170 1.36 × 104 6.00 × 104 0.0204 1.63 × 104 7.00 × 104 0.0238 1.90 × 104 8.00 × 104 0.0272 2.17 × 104 9.00 × 104 0.0306 2.44 × 104 1.00 × 105 0.0340 2.72 × 104 2.00 × 105 0.0680 5.43 × 104 2.80 × 105 0.0953 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 11.7 3.06 × 10-5 8.80 20.0 5.24 × 10-5 15.1 30.0 7.87 × 10-5 22.6 40.0 1.05 × 10-4 30.2 50.0 1.31 × 10-4 37.7 60.0 1.57 × 10-4 45.3 70.0 1.84 × 10-4 52.8 80.0 2.10 × 10-4 60.3 90.0 2.36 × 10-4 67.9 100 2.62 × 10-4 75.4 200 5.24 × 10-4 151 300 7.87 × 10-4 226 400 0.00105 302 500 0.00131 377 600 0.00157 453 700 0.00184 528 800 0.00210 603 900 0.00236 679 1000 0.00262 754 2000 0.00524 1510 3000 0.00787 2260 4000 0.0105 3020 5000 0.0131 3770 6000 0.0157 4530 7000 0.0184 5280 8000 0.0210 6030 9000 0.0236 6790 1.00 × 104 0.0262 7540 2.00 × 104 0.0524 1.51 × 104 3.00 × 104 0.0787 2.26 × 104 4.00 × 104 0.105 3.02 × 104 5.00 × 104 0.131 3.77 × 104 6.00 × 104 0.157 4.53 × 104 7.00 × 104 0.184 5.28 × 104 8.00 × 104 0.210 6.03 × 104 9.00 × 104 0.236 6.79 × 104 1.00 × 105 0.262 7.54 × 104 1.01 × 105 0.265 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 11.7 4.90 × 10-4 35.2 20.0 8.39 × 10-4 60.3 30.0 0.00126 90.5 40.0 0.00168 121 50.0 0.00210 151 60.0 0.00252 181 70.0 0.00294 211 80.0 0.00336 241 90.0 0.00378 272 100 0.00420 302 200 0.00839 603 300 0.0126 905 400 0.0168 1210 500 0.0210 1510 600 0.0252 1810 700 0.0294 2110 800 0.0336 2410 900 0.0378 2720 1000 0.0420 3020 2000 0.0839 6030 3000 0.126 9050 4000 0.168 1.21 × 104 5000 0.210 1.51 × 104 6000 0.252 1.81 × 104 7000 0.294 2.11 × 104 8000 0.336 2.41 × 104 9000 0.378 2.72 × 104 1.00 × 104 0.420 3.02 × 104 2.00 × 104 0.839 6.03 × 104 2.52 × 104 1.06 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 11.7 0.00248 79.2 20.0 0.00425 136 30.0 0.00637 204 40.0 0.00850 272 50.0 0.0106 339 60.0 0.0127 407 70.0 0.0149 475 80.0 0.0170 543 90.0 0.0191 611 100 0.0212 679 200 0.0425 1360 300 0.0637 2040 400 0.0850 2720 500 0.106 3390 600 0.127 4070 700 0.149 4750 800 0.170 5430 900 0.191 6110 1000 0.212 6790 2000 0.425 1.36 × 104 3000 0.637 2.04 × 104 4000 0.850 2.72 × 104 5000 1.06 3.39 × 104 6000 1.27 4.07 × 104 7000 1.49 4.75 × 104 8000 1.70 5.43 × 104 9000 1.91 6.11 × 104 1.00 × 104 2.12 6.79 × 104 1.12 × 104 2.38 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 11.7 0.00784 141 20.0 0.0134 241 30.0 0.0201 362 40.0 0.0269 483 50.0 0.0336 603 60.0 0.0403 724 70.0 0.0470 845 80.0 0.0537 966 90.0 0.0604 1090 100 0.0671 1210 200 0.134 2410 300 0.201 3620 400 0.269 4830 500 0.336 6030 600 0.403 7240 700 0.470 8450 800 0.537 9660 900 0.604 1.09 × 104 1000 0.671 1.21 × 104 2000 1.34 2.41 × 104 3000 2.01 3.62 × 104 4000 2.69 4.83 × 104 5000 3.36 6.03 × 104 6000 4.03 7.24 × 104 6310 4.24 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 11.7 0.0191 220 20.0 0.0328 377 30.0 0.0492 566 40.0 0.0656 754 50.0 0.0819 943 60.0 0.0983 1130 70.0 0.115 1320 80.0 0.131 1510 90.0 0.148 1700 100 0.164 1890 200 0.328 3770 300 0.492 5660 400 0.656 7540 500 0.819 9430 600 0.983 1.13 × 104 700 1.15 1.32 × 104 800 1.31 1.51 × 104 900 1.48 1.70 × 104 1000 1.64 1.89 × 104 2000 3.28 3.77 × 104 3000 4.92 5.66 × 104 4000 6.56 7.54 × 104 4040 6.62 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 11.7 0.0397 317 20.0 0.0680 543 30.0 0.102 815 40.0 0.136 1090 50.0 0.170 1360 60.0 0.204 1630 70.0 0.238 1900 80.0 0.272 2170 90.0 0.306 2440 100 0.340 2720 200 0.680 5430 300 1.02 8150 400 1.36 1.09 × 104 500 1.70 1.36 × 104 600 2.04 1.63 × 104 700 2.38 1.90 × 104 800 2.72 2.17 × 104 900 3.06 2.44 × 104 1000 3.40 2.72 × 104 2000 6.80 5.43 × 104 2800 9.53 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 11.7 0.125 563 20.0 0.215 966 30.0 0.322 1450 40.0 0.430 1930 50.0 0.537 2410 60.0 0.644 2900 70.0 0.752 3380 80.0 0.859 3860 90.0 0.967 4340 100 1.07 4830 200 2.15 9660 300 3.22 1.45 × 104 400 4.30 1.93 × 104 500 5.37 2.41 × 104 600 6.44 2.90 × 104 700 7.52 3.38 × 104 800 8.59 3.86 × 104 900 9.67 4.34 × 104 1000 10.7 4.83 × 104 1580 16.9 7.61 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 11.7 0.306 880 20.0 0.524 1510 30.0 0.787 2260 40.0 1.05 3020 50.0 1.31 3770 60.0 1.57 4530 70.0 1.84 5280 80.0 2.10 6030 90.0 2.36 6790 100 2.62 7540 200 5.24 1.51 × 104 300 7.87 2.26 × 104 400 10.5 3.02 × 104 458 12.0 3.45 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 11.7 0.635 1270 20.0 1.09 2170 30.0 1.63 3260 40.0 2.18 4340 50.0 2.72 5430 60.0 3.26 6520 70.0 3.81 7600 80.0 4.35 8690 90.0 4.89 9780 100 5.44 1.09 × 104 200 10.9 2.17 × 104 221 12.0 2.40 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 11.7 1.18 1730 20.0 2.01 2960 30.0 3.02 4440 40.0 4.03 5910 50.0 5.04 7390 60.0 6.04 8870 70.0 7.05 1.03 × 104 80.0 8.06 1.18 × 104 90.0 9.07 1.33 × 104 100 10.1 1.48 × 104 119 12.0 1.76 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 11.7 2.01 2250 20.0 3.44 3860 30.0 5.16 5790 40.0 6.87 7720 50.0 8.59 9660 60.0 10.3 1.16 × 104 69.8 12.0 1.35 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 11.7 3.21 2850 20.0 5.51 4890 30.0 8.26 7330 40.0 11.0 9780 43.6 12.0 1.07 × 104
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 11.7 4.90 3520 20.0 8.39 6030 28.6 12.0 8630
 Aluminum I Beam: 12.00 × 11.672 (12.00 inch tall × 11.672 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 11.7 12.0 5500 11.7 12.0 5520