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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Two Equal Spans » Aluminum I Beam » 7.00 × 5.800
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 w_mid and the maximum normal stress stress_max 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 = 42.89 in4) for the 7.00 × 5.800 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
L = 80 ft
   
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 9.71 × 10-6 6.39
6.00 1.00 × 10-5 6.61
7.00 1.17 × 10-5 7.71
8.00 1.34 × 10-5 8.81
9.00 1.51 × 10-5 9.91
10.0 1.67 × 10-5 11.0
20.0 3.35 × 10-5 22.0
30.0 5.02 × 10-5 33.0
40.0 6.70 × 10-5 44.1
50.0 8.37 × 10-5 55.1
60.0 1.00 × 10-4 66.1
70.0 1.17 × 10-4 77.1
80.0 1.34 × 10-4 88.1
90.0 1.51 × 10-4 99.1
100 1.67 × 10-4 110
200 3.35 × 10-4 220
300 5.02 × 10-4 330
400 6.70 × 10-4 441
500 8.37 × 10-4 551
600 0.00100 661
700 0.00117 771
800 0.00134 881
900 0.00151 991
1000 0.00167 1100
2000 0.00335 2200
3000 0.00502 3300
4000 0.00670 4410
5000 0.00837 5510
6000 0.0100 6610
7000 0.0117 7710
8000 0.0134 8810
9000 0.0151 9910
1.00 × 104 0.0167 1.10 × 104
2.00 × 104 0.0335 2.20 × 104
3.00 × 104 0.0502 3.30 × 104
4.00 × 104 0.0670 4.41 × 104
5.00 × 104 0.0837 5.51 × 104
6.00 × 104 0.100 6.61 × 104
6.91 × 104 0.116 7.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 7.49 × 10-5 17.7
6.00 7.75 × 10-5 18.4
7.00 9.04 × 10-5 21.4
8.00 1.03 × 10-4 24.5
9.00 1.16 × 10-4 27.5
10.0 1.29 × 10-4 30.6
20.0 2.58 × 10-4 61.2
30.0 3.88 × 10-4 91.8
40.0 5.17 × 10-4 122
50.0 6.46 × 10-4 153
60.0 7.75 × 10-4 184
70.0 9.04 × 10-4 214
80.0 0.00103 245
90.0 0.00116 275
100 0.00129 306
200 0.00258 612
300 0.00388 918
400 0.00517 1220
500 0.00646 1530
600 0.00775 1840
700 0.00904 2140
800 0.0103 2450
900 0.0116 2750
1000 0.0129 3060
2000 0.0258 6120
3000 0.0388 9180
4000 0.0517 1.22 × 104
5000 0.0646 1.53 × 104
6000 0.0775 1.84 × 104
7000 0.0904 2.14 × 104
8000 0.103 2.45 × 104
9000 0.116 2.75 × 104
1.00 × 104 0.129 3.06 × 104
2.00 × 104 0.258 6.12 × 104
2.49 × 104 0.321 7.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.00120 71.0
6.00 0.00124 73.4
7.00 0.00145 85.7
8.00 0.00165 97.9
9.00 0.00186 110
10.0 0.00207 122
20.0 0.00413 245
30.0 0.00620 367
40.0 0.00827 490
50.0 0.0103 612
60.0 0.0124 734
70.0 0.0145 857
80.0 0.0165 979
90.0 0.0186 1100
100 0.0207 1220
200 0.0413 2450
300 0.0620 3670
400 0.0827 4900
500 0.103 6120
600 0.124 7340
700 0.145 8570
800 0.165 9790
900 0.186 1.10 × 104
1000 0.207 1.22 × 104
2000 0.413 2.45 × 104
3000 0.620 3.67 × 104
4000 0.827 4.90 × 104
5000 1.03 6.12 × 104
6000 1.24 7.34 × 104
6220 1.29 7.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.00607 160
6.00 0.00628 165
7.00 0.00732 193
8.00 0.00837 220
9.00 0.00942 248
10.0 0.0105 275
20.0 0.0209 551
30.0 0.0314 826
40.0 0.0419 1100
50.0 0.0523 1380
60.0 0.0628 1650
70.0 0.0732 1930
80.0 0.0837 2200
90.0 0.0942 2480
100 0.105 2750
200 0.209 5510
300 0.314 8260
400 0.419 1.10 × 104
500 0.523 1.38 × 104
600 0.628 1.65 × 104
700 0.732 1.93 × 104
800 0.837 2.20 × 104
900 0.942 2.48 × 104
1000 1.05 2.75 × 104
2000 2.09 5.51 × 104
2760 2.89 7.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.0192 284
6.00 0.0198 294
7.00 0.0231 343
8.00 0.0265 392
9.00 0.0298 441
10.0 0.0331 490
20.0 0.0661 979
30.0 0.0992 1470
40.0 0.132 1960
50.0 0.165 2450
60.0 0.198 2940
70.0 0.231 3430
80.0 0.265 3920
90.0 0.298 4410
100 0.331 4900
200 0.661 9790
300 0.992 1.47 × 104
400 1.32 1.96 × 104
500 1.65 2.45 × 104
600 1.98 2.94 × 104
700 2.31 3.43 × 104
800 2.65 3.92 × 104
900 2.98 4.41 × 104
1000 3.31 4.90 × 104
1560 5.14 7.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.0468 444
6.00 0.0484 459
7.00 0.0565 536
8.00 0.0646 612
9.00 0.0727 689
10.0 0.0807 765
20.0 0.161 1530
30.0 0.242 2300
40.0 0.323 3060
50.0 0.404 3830
60.0 0.484 4590
70.0 0.565 5360
80.0 0.646 6120
90.0 0.727 6890
100 0.807 7650
200 1.61 1.53 × 104
300 2.42 2.30 × 104
400 3.23 3.06 × 104
500 4.04 3.83 × 104
600 4.84 4.59 × 104
700 5.65 5.36 × 104
800 6.46 6.12 × 104
867 7.00 6.63 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.0971 639
6.00 0.100 661
7.00 0.117 771
8.00 0.134 881
9.00 0.151 991
10.0 0.167 1100
20.0 0.335 2200
30.0 0.502 3300
40.0 0.670 4410
50.0 0.837 5510
60.0 1.00 6610
70.0 1.17 7710
80.0 1.34 8810
90.0 1.51 9910
100 1.67 1.10 × 104
200 3.35 2.20 × 104
300 5.02 3.30 × 104
400 6.70 4.41 × 104
418 7.00 4.61 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.307 1140
6.00 0.317 1180
7.00 0.370 1370
8.00 0.423 1570
9.00 0.476 1760
10.0 0.529 1960
20.0 1.06 3920
30.0 1.59 5880
40.0 2.12 7830
50.0 2.65 9790
60.0 3.17 1.18 × 104
70.0 3.70 1.37 × 104
80.0 4.23 1.57 × 104
90.0 4.76 1.76 × 104
100 5.29 1.96 × 104
132 7.00 2.59 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 0.749 1770
6.00 0.775 1840
7.00 0.904 2140
8.00 1.03 2450
9.00 1.16 2750
10.0 1.29 3060
20.0 2.58 6120
30.0 3.88 9180
40.0 5.17 1.22 × 104
50.0 6.46 1.53 × 104
54.2 7.00 1.66 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 1.55 2560
6.00 1.61 2640
7.00 1.88 3080
8.00 2.14 3530
9.00 2.41 3970
10.0 2.68 4410
20.0 5.36 8810
26.1 7.00 1.15 × 104
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 2.88 3480
6.00 2.98 3600
7.00 3.47 4200
8.00 3.97 4800
9.00 4.47 5400
10.0 4.96 6000
14.1 7.00 8460
Aluminum I Beam: 7.00 × 5.800 (7.00 inch tall × 5.800 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_mid (in) stress_max (psi)
5.80 4.91 4540
6.00 5.08 4700
7.00 5.93 5480
8.00 6.77 6270
8.27 7.00 6480
Additional Information
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STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

more publications