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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Aluminum I Beam » 6.00 × 4.030
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 = 21.99 in4) for the 6.00 × 4.030 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: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 4.03 1.72 × 10-5 5.94 5.00 2.13 × 10-5 7.37 6.00 2.56 × 10-5 8.84 7.00 2.98 × 10-5 10.3 8.00 3.41 × 10-5 11.8 9.00 3.84 × 10-5 13.3 10.0 4.26 × 10-5 14.7 20.0 8.53 × 10-5 29.5 30.0 1.28 × 10-4 44.2 40.0 1.71 × 10-4 58.9 50.0 2.13 × 10-4 73.7 60.0 2.56 × 10-4 88.4 70.0 2.98 × 10-4 103 80.0 3.41 × 10-4 118 90.0 3.84 × 10-4 133 100 4.26 × 10-4 147 200 8.53 × 10-4 295 300 0.00128 442 400 0.00171 589 500 0.00213 737 600 0.00256 884 700 0.00298 1030 800 0.00341 1180 900 0.00384 1330 1000 0.00426 1470 2000 0.00853 2950 3000 0.0128 4420 4000 0.0171 5890 5000 0.0213 7370 6000 0.0256 8840 7000 0.0298 1.03 × 104 8000 0.0341 1.18 × 104 9000 0.0384 1.33 × 104 1.00 × 104 0.0426 1.47 × 104 2.00 × 104 0.0853 2.95 × 104 3.00 × 104 0.128 4.42 × 104 4.00 × 104 0.171 5.89 × 104 5.00 × 104 0.213 7.37 × 104 5.17 × 104 0.220 7.61 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 4.03 1.33 × 10-4 16.5 5.00 1.64 × 10-4 20.5 6.00 1.97 × 10-4 24.6 7.00 2.30 × 10-4 28.6 8.00 2.63 × 10-4 32.7 9.00 2.96 × 10-4 36.8 10.0 3.29 × 10-4 40.9 20.0 6.58 × 10-4 81.9 30.0 9.87 × 10-4 123 40.0 0.00132 164 50.0 0.00164 205 60.0 0.00197 246 70.0 0.00230 286 80.0 0.00263 327 90.0 0.00296 368 100 0.00329 409 200 0.00658 819 300 0.00987 1230 400 0.0132 1640 500 0.0164 2050 600 0.0197 2460 700 0.0230 2860 800 0.0263 3270 900 0.0296 3680 1000 0.0329 4090 2000 0.0658 8190 3000 0.0987 1.23 × 104 4000 0.132 1.64 × 104 5000 0.164 2.05 × 104 6000 0.197 2.46 × 104 7000 0.230 2.86 × 104 8000 0.263 3.27 × 104 9000 0.296 3.68 × 104 1.00 × 104 0.329 4.09 × 104 1.86 × 104 0.612 7.61 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 4.03 0.00212 66.0 5.00 0.00263 81.9 6.00 0.00316 98.2 7.00 0.00368 115 8.00 0.00421 131 9.00 0.00474 147 10.0 0.00526 164 20.0 0.0105 327 30.0 0.0158 491 40.0 0.0211 655 50.0 0.0263 819 60.0 0.0316 982 70.0 0.0368 1150 80.0 0.0421 1310 90.0 0.0474 1470 100 0.0526 1640 200 0.105 3270 300 0.158 4910 400 0.211 6550 500 0.263 8190 600 0.316 9820 700 0.368 1.15 × 104 800 0.421 1.31 × 104 900 0.474 1.47 × 104 1000 0.526 1.64 × 104 2000 1.05 3.27 × 104 3000 1.58 4.91 × 104 4000 2.11 6.55 × 104 4650 2.45 7.61 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 4.03 0.0107 148 5.00 0.0133 184 6.00 0.0160 221 7.00 0.0187 258 8.00 0.0213 295 9.00 0.0240 332 10.0 0.0266 368 20.0 0.0533 737 30.0 0.0799 1110 40.0 0.107 1470 50.0 0.133 1840 60.0 0.160 2210 70.0 0.187 2580 80.0 0.213 2950 90.0 0.240 3320 100 0.266 3680 200 0.533 7370 300 0.799 1.11 × 104 400 1.07 1.47 × 104 500 1.33 1.84 × 104 600 1.60 2.21 × 104 700 1.87 2.58 × 104 800 2.13 2.95 × 104 900 2.40 3.32 × 104 1000 2.66 3.68 × 104 2000 5.33 7.37 × 104 2070 5.51 7.61 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 4.03 0.0339 264 5.00 0.0421 327 6.00 0.0505 393 7.00 0.0589 458 8.00 0.0674 524 9.00 0.0758 589 10.0 0.0842 655 20.0 0.168 1310 30.0 0.253 1960 40.0 0.337 2620 50.0 0.421 3270 60.0 0.505 3930 70.0 0.589 4580 80.0 0.674 5240 90.0 0.758 5890 100 0.842 6550 200 1.68 1.31 × 104 300 2.53 1.96 × 104 400 3.37 2.62 × 104 500 4.21 3.27 × 104 600 5.05 3.93 × 104 700 5.89 4.58 × 104 712 6.00 4.67 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 4.03 0.0829 412 5.00 0.103 512 6.00 0.123 614 7.00 0.144 716 8.00 0.164 819 9.00 0.185 921 10.0 0.206 1020 20.0 0.411 2050 30.0 0.617 3070 40.0 0.822 4090 50.0 1.03 5120 60.0 1.23 6140 70.0 1.44 7160 80.0 1.64 8190 90.0 1.85 9210 100 2.06 1.02 × 104 200 4.11 2.05 × 104 292 6.00 2.99 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 4.03 0.172 594 5.00 0.213 737 6.00 0.256 884 7.00 0.298 1030 8.00 0.341 1180 9.00 0.384 1330 10.0 0.426 1470 20.0 0.853 2950 30.0 1.28 4420 40.0 1.71 5890 50.0 2.13 7370 60.0 2.56 8840 70.0 2.98 1.03 × 104 80.0 3.41 1.18 × 104 90.0 3.84 1.33 × 104 100 4.26 1.47 × 104 141 6.00 2.07 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 4.03 0.543 1060 5.00 0.674 1310 6.00 0.808 1570 7.00 0.943 1830 8.00 1.08 2100 9.00 1.21 2360 10.0 1.35 2620 20.0 2.69 5240 30.0 4.04 7860 40.0 5.39 1.05 × 104 44.5 6.00 1.17 × 104
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 4.03 1.33 1650 5.00 1.64 2050 6.00 1.97 2460 7.00 2.30 2860 8.00 2.63 3270 9.00 2.96 3680 10.0 3.29 4090 18.2 6.00 7470
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 4.03 2.75 2380 5.00 3.41 2950 6.00 4.09 3540 7.00 4.77 4130 8.00 5.46 4710 8.80 6.00 5180
 Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 4.03 5.09 3230 4.75 6.00 3810
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