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Aluminum I Beam: 6.00 × 4.030
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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 stress_max 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 Yield 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.
L = 3 ft
L = 5 ft
L = 10 ft
L = 15 ft
L = 20 ft
L = 25 ft
L = 30 ft
L = 40 ft
L = 50 ft
L = 60 ft
L = 70 ft
   
Aluminum I Beam: 6.00 × 4.030 (6.00 inch tall × 4.030 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (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
P (lbf/ft) w_max (in) stress_max (psi)
4.03 5.09 3230
4.75 6.00 3810
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