engineering fundamentals
Aluminum I Beam: 3.00 × 2.030
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Single Span » Aluminum I Beam » 3.00 × 2.030
Aluminum I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in a single span, the maximum displacement w_max and the maximum normal stress stress_max occur at the center of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 2.71 in4) for the 3.00 × 2.030 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
   
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 1.34 × 10-4 15.2
3.00 1.99 × 10-4 22.4
4.00 2.65 × 10-4 29.9
5.00 3.31 × 10-4 37.4
6.00 3.97 × 10-4 44.8
7.00 4.64 × 10-4 52.3
8.00 5.30 × 10-4 59.8
9.00 5.96 × 10-4 67.3
10.0 6.62 × 10-4 74.7
20.0 0.00132 149
30.0 0.00199 224
40.0 0.00265 299
50.0 0.00331 374
60.0 0.00397 448
70.0 0.00464 523
80.0 0.00530 598
90.0 0.00596 673
100 0.00662 747
200 0.0132 1490
300 0.0199 2240
400 0.0265 2990
500 0.0331 3740
600 0.0397 4480
700 0.0464 5230
800 0.0530 5980
900 0.0596 6730
1000 0.0662 7470
2000 0.132 1.49 × 104
3000 0.199 2.24 × 104
4000 0.265 2.99 × 104
5000 0.331 3.74 × 104
6000 0.397 4.48 × 104
7000 0.464 5.23 × 104
8000 0.530 5.98 × 104
9000 0.596 6.73 × 104
1.00 × 104 0.662 7.47 × 104
1.02 × 104 0.675 7.61 × 104
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 0.00104 42.1
3.00 0.00153 62.3
4.00 0.00204 83.0
5.00 0.00256 104
6.00 0.00307 125
7.00 0.00358 145
8.00 0.00409 166
9.00 0.00460 187
10.0 0.00511 208
20.0 0.0102 415
30.0 0.0153 623
40.0 0.0204 830
50.0 0.0256 1040
60.0 0.0307 1250
70.0 0.0358 1450
80.0 0.0409 1660
90.0 0.0460 1870
100 0.0511 2080
200 0.102 4150
300 0.153 6230
400 0.204 8300
500 0.256 1.04 × 104
600 0.307 1.25 × 104
700 0.358 1.45 × 104
800 0.409 1.66 × 104
900 0.460 1.87 × 104
1000 0.511 2.08 × 104
2000 1.02 4.15 × 104
3000 1.53 6.23 × 104
3670 1.87 7.61 × 104
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 0.0166 169
3.00 0.0245 249
4.00 0.0327 332
5.00 0.0409 415
6.00 0.0491 498
7.00 0.0572 581
8.00 0.0654 664
9.00 0.0736 747
10.0 0.0818 830
20.0 0.164 1660
30.0 0.245 2490
40.0 0.327 3320
50.0 0.409 4150
60.0 0.491 4980
70.0 0.572 5810
80.0 0.654 6640
90.0 0.736 7470
100 0.818 8300
200 1.64 1.66 × 104
300 2.45 2.49 × 104
367 3.00 3.05 × 104
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 0.0840 379
3.00 0.124 560
4.00 0.166 747
5.00 0.207 934
6.00 0.248 1120
7.00 0.290 1310
8.00 0.331 1490
9.00 0.373 1680
10.0 0.414 1870
20.0 0.828 3740
30.0 1.24 5600
40.0 1.66 7470
50.0 2.07 9340
60.0 2.48 1.12 × 104
70.0 2.90 1.31 × 104
72.5 3.00 1.35 × 104
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 0.266 674
3.00 0.393 996
4.00 0.523 1330
5.00 0.654 1660
6.00 0.785 1990
7.00 0.916 2320
8.00 1.05 2660
9.00 1.18 2990
10.0 1.31 3320
20.0 2.62 6640
22.9 3.00 7610
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 0.648 1050
3.00 0.958 1560
4.00 1.28 2080
5.00 1.60 2590
6.00 1.92 3110
7.00 2.24 3630
8.00 2.56 4150
9.00 2.87 4670
9.39 3.00 4870
Aluminum I Beam: 3.00 × 2.030 (3.00 inch tall × 2.030 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
2.03 1.34 1520
3.00 1.99 2240
4.00 2.65 2990
4.53 3.00 3380
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