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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W5 × 16
Wide Flange Steel 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 span and the maximum normal stress occuring at the second and third support of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 21.3 in4) for the W5 × 16 Wide Flange Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress of steels can range from 1.015 × 104 to 2.970 × 105 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.

 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 16.0 2.35 × 10-5 20.3 20.0 2.93 × 10-5 25.4 30.0 4.40 × 10-5 38.1 40.0 5.87 × 10-5 50.8 50.0 7.34 × 10-5 63.5 60.0 8.80 × 10-5 76.2 70.0 1.03 × 10-4 88.9 80.0 1.17 × 10-4 102 90.0 1.32 × 10-4 114 100 1.47 × 10-4 127 200 2.93 × 10-4 254 300 4.40 × 10-4 381 400 5.87 × 10-4 508 500 7.34 × 10-4 635 600 8.80 × 10-4 762 700 0.00103 889 800 0.00117 1020 900 0.00132 1140 1000 0.00147 1270 2000 0.00293 2540 3000 0.00440 3810 4000 0.00587 5080 5000 0.00734 6350 6000 0.00880 7620 7000 0.0103 8890 8000 0.0117 1.02 × 104 9000 0.0132 1.14 × 104 1.00 × 104 0.0147 1.27 × 104 2.00 × 104 0.0293 2.54 × 104 3.00 × 104 0.0440 3.81 × 104 4.00 × 104 0.0587 5.08 × 104 5.00 × 104 0.0734 6.35 × 104 6.00 × 104 0.0880 7.62 × 104 7.00 × 104 0.103 8.89 × 104 8.00 × 104 0.117 1.02 × 105 9.00 × 104 0.132 1.14 × 105 1.00 × 105 0.147 1.27 × 105 2.00 × 105 0.293 2.54 × 105 2.34 × 105 0.343 2.97 × 105
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 16.0 1.81 × 10-4 56.5 20.0 2.26 × 10-4 70.6 30.0 3.40 × 10-4 106 40.0 4.53 × 10-4 141 50.0 5.66 × 10-4 176 60.0 6.79 × 10-4 212 70.0 7.92 × 10-4 247 80.0 9.06 × 10-4 282 90.0 0.00102 318 100 0.00113 353 200 0.00226 706 300 0.00340 1060 400 0.00453 1410 500 0.00566 1760 600 0.00679 2120 700 0.00792 2470 800 0.00906 2820 900 0.0102 3180 1000 0.0113 3530 2000 0.0226 7060 3000 0.0340 1.06 × 104 4000 0.0453 1.41 × 104 5000 0.0566 1.76 × 104 6000 0.0679 2.12 × 104 7000 0.0792 2.47 × 104 8000 0.0906 2.82 × 104 9000 0.102 3.18 × 104 1.00 × 104 0.113 3.53 × 104 2.00 × 104 0.226 7.06 × 104 3.00 × 104 0.340 1.06 × 105 4.00 × 104 0.453 1.41 × 105 5.00 × 104 0.566 1.76 × 105 6.00 × 104 0.679 2.12 × 105 7.00 × 104 0.792 2.47 × 105 8.00 × 104 0.906 2.82 × 105 8.42 × 104 0.953 2.97 × 105
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 16.0 0.00290 226 20.0 0.00362 282 30.0 0.00543 423 40.0 0.00724 565 50.0 0.00906 706 60.0 0.0109 847 70.0 0.0127 988 80.0 0.0145 1130 90.0 0.0163 1270 100 0.0181 1410 200 0.0362 2820 300 0.0543 4230 400 0.0724 5650 500 0.0906 7060 600 0.109 8470 700 0.127 9880 800 0.145 1.13 × 104 900 0.163 1.27 × 104 1000 0.181 1.41 × 104 2000 0.362 2.82 × 104 3000 0.543 4.23 × 104 4000 0.724 5.65 × 104 5000 0.906 7.06 × 104 6000 1.09 8.47 × 104 7000 1.27 9.88 × 104 8000 1.45 1.13 × 105 9000 1.63 1.27 × 105 1.00 × 104 1.81 1.41 × 105 2.00 × 104 3.62 2.82 × 105 2.10 × 104 3.81 2.97 × 105
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 16.0 0.0147 508 20.0 0.0183 635 30.0 0.0275 953 40.0 0.0367 1270 50.0 0.0458 1590 60.0 0.0550 1910 70.0 0.0642 2220 80.0 0.0734 2540 90.0 0.0825 2860 100 0.0917 3180 200 0.183 6350 300 0.275 9530 400 0.367 1.27 × 104 500 0.458 1.59 × 104 600 0.550 1.91 × 104 700 0.642 2.22 × 104 800 0.734 2.54 × 104 900 0.825 2.86 × 104 1000 0.917 3.18 × 104 2000 1.83 6.35 × 104 3000 2.75 9.53 × 104 4000 3.67 1.27 × 105 5000 4.58 1.59 × 105 5460 5.01 1.73 × 105
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 16.0 0.0464 903 20.0 0.0580 1130 30.0 0.0869 1690 40.0 0.116 2260 50.0 0.145 2820 60.0 0.174 3390 70.0 0.203 3950 80.0 0.232 4520 90.0 0.261 5080 100 0.290 5650 200 0.580 1.13 × 104 300 0.869 1.69 × 104 400 1.16 2.26 × 104 500 1.45 2.82 × 104 600 1.74 3.39 × 104 700 2.03 3.95 × 104 800 2.32 4.52 × 104 900 2.61 5.08 × 104 1000 2.90 5.65 × 104 1730 5.01 9.76 × 104
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 16.0 0.113 1410 20.0 0.142 1760 30.0 0.212 2650 40.0 0.283 3530 50.0 0.354 4410 60.0 0.425 5290 70.0 0.495 6170 80.0 0.566 7060 90.0 0.637 7940 100 0.708 8820 200 1.42 1.76 × 104 300 2.12 2.65 × 104 400 2.83 3.53 × 104 500 3.54 4.41 × 104 600 4.25 5.29 × 104 700 4.95 6.17 × 104 708 5.01 6.25 × 104
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 16.0 0.235 2030 20.0 0.293 2540 30.0 0.440 3810 40.0 0.587 5080 50.0 0.734 6350 60.0 0.880 7620 70.0 1.03 8890 80.0 1.17 1.02 × 104 90.0 1.32 1.14 × 104 100 1.47 1.27 × 104 200 2.93 2.54 × 104 300 4.40 3.81 × 104 341 5.01 4.34 × 104
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 16.0 0.742 3610 20.0 0.927 4520 30.0 1.39 6770 40.0 1.85 9030 50.0 2.32 1.13 × 104 60.0 2.78 1.35 × 104 70.0 3.25 1.58 × 104 80.0 3.71 1.81 × 104 90.0 4.17 2.03 × 104 100 4.64 2.26 × 104 108 5.01 2.44 × 104
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 16.0 1.81 5650 20.0 2.26 7060 30.0 3.40 1.06 × 104 40.0 4.53 1.41 × 104 44.3 5.01 1.56 × 104
 Steel I Beam: W5 × 16 (Wide Flange 5 inch tall × 16 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 16.0 3.76 8130 20.0 4.69 1.02 × 104 21.3 5.01 1.08 × 104
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Learn the best principles to negotiate the salary you deserve!

Essentials of Manufacturing

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

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Injection Molding Design Guide

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