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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W10 × 45
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 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 = 248 in4) for the W10 × 45 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: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 45.0 5.67 × 10-6 9.90 50.0 6.30 × 10-6 11.0 60.0 7.56 × 10-6 13.2 70.0 8.82 × 10-6 15.4 80.0 1.01 × 10-5 17.6 90.0 1.13 × 10-5 19.8 100 1.26 × 10-5 22.0 200 2.52 × 10-5 44.0 300 3.78 × 10-5 66.0 400 5.04 × 10-5 88.0 500 6.30 × 10-5 110 600 7.56 × 10-5 132 700 8.82 × 10-5 154 800 1.01 × 10-4 176 900 1.13 × 10-4 198 1000 1.26 × 10-4 220 2000 2.52 × 10-4 440 3000 3.78 × 10-4 660 4000 5.04 × 10-4 880 5000 6.30 × 10-4 1100 6000 7.56 × 10-4 1320 7000 8.82 × 10-4 1540 8000 0.00101 1760 9000 0.00113 1980 1.00 × 104 0.00126 2200 2.00 × 104 0.00252 4400 3.00 × 104 0.00378 6600 4.00 × 104 0.00504 8800 5.00 × 104 0.00630 1.10 × 104 6.00 × 104 0.00756 1.32 × 104 7.00 × 104 0.00882 1.54 × 104 8.00 × 104 0.0101 1.76 × 104 9.00 × 104 0.0113 1.98 × 104 1.00 × 105 0.0126 2.20 × 104 2.00 × 105 0.0252 4.40 × 104 3.00 × 105 0.0378 6.60 × 104 4.00 × 105 0.0504 8.80 × 104 5.00 × 105 0.0630 1.10 × 105 6.00 × 105 0.0756 1.32 × 105 7.00 × 105 0.0882 1.54 × 105 8.00 × 105 0.101 1.76 × 105 9.00 × 105 0.113 1.98 × 105 1.00 × 106 0.126 2.20 × 105 1.35 × 106 0.170 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 45.0 4.38 × 10-5 27.5 50.0 4.86 × 10-5 30.5 60.0 5.83 × 10-5 36.7 70.0 6.81 × 10-5 42.8 80.0 7.78 × 10-5 48.9 90.0 8.75 × 10-5 55.0 100 9.72 × 10-5 61.1 200 1.94 × 10-4 122 300 2.92 × 10-4 183 400 3.89 × 10-4 244 500 4.86 × 10-4 305 600 5.83 × 10-4 367 700 6.81 × 10-4 428 800 7.78 × 10-4 489 900 8.75 × 10-4 550 1000 9.72 × 10-4 611 2000 0.00194 1220 3000 0.00292 1830 4000 0.00389 2440 5000 0.00486 3050 6000 0.00583 3670 7000 0.00681 4280 8000 0.00778 4890 9000 0.00875 5500 1.00 × 104 0.00972 6110 2.00 × 104 0.0194 1.22 × 104 3.00 × 104 0.0292 1.83 × 104 4.00 × 104 0.0389 2.44 × 104 5.00 × 104 0.0486 3.05 × 104 6.00 × 104 0.0583 3.67 × 104 7.00 × 104 0.0681 4.28 × 104 8.00 × 104 0.0778 4.89 × 104 9.00 × 104 0.0875 5.50 × 104 1.00 × 105 0.0972 6.11 × 104 2.00 × 105 0.194 1.22 × 105 3.00 × 105 0.292 1.83 × 105 4.00 × 105 0.389 2.44 × 105 4.86 × 105 0.473 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 45.0 7.00 × 10-4 110 50.0 7.78 × 10-4 122 60.0 9.33 × 10-4 147 70.0 0.00109 171 80.0 0.00124 195 90.0 0.00140 220 100 0.00156 244 200 0.00311 489 300 0.00467 733 400 0.00622 977 500 0.00778 1220 600 0.00933 1470 700 0.0109 1710 800 0.0124 1950 900 0.0140 2200 1000 0.0156 2440 2000 0.0311 4890 3000 0.0467 7330 4000 0.0622 9770 5000 0.0778 1.22 × 104 6000 0.0933 1.47 × 104 7000 0.109 1.71 × 104 8000 0.124 1.95 × 104 9000 0.140 2.20 × 104 1.00 × 104 0.156 2.44 × 104 2.00 × 104 0.311 4.89 × 104 3.00 × 104 0.467 7.33 × 104 4.00 × 104 0.622 9.77 × 104 5.00 × 104 0.778 1.22 × 105 6.00 × 104 0.933 1.47 × 105 7.00 × 104 1.09 1.71 × 105 8.00 × 104 1.24 1.95 × 105 9.00 × 104 1.40 2.20 × 105 1.00 × 105 1.56 2.44 × 105 1.22 × 105 1.89 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 45.0 0.00354 247 50.0 0.00394 275 60.0 0.00473 330 70.0 0.00551 385 80.0 0.00630 440 90.0 0.00709 495 100 0.00788 550 200 0.0158 1100 300 0.0236 1650 400 0.0315 2200 500 0.0394 2750 600 0.0473 3300 700 0.0551 3850 800 0.0630 4400 900 0.0709 4950 1000 0.0788 5500 2000 0.158 1.10 × 104 3000 0.236 1.65 × 104 4000 0.315 2.20 × 104 5000 0.394 2.75 × 104 6000 0.473 3.30 × 104 7000 0.551 3.85 × 104 8000 0.630 4.40 × 104 9000 0.709 4.95 × 104 1.00 × 104 0.788 5.50 × 104 2.00 × 104 1.58 1.10 × 105 3.00 × 104 2.36 1.65 × 105 4.00 × 104 3.15 2.20 × 105 5.00 × 104 3.94 2.75 × 105 5.40 × 104 4.25 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 45.0 0.0112 440 50.0 0.0124 489 60.0 0.0149 586 70.0 0.0174 684 80.0 0.0199 782 90.0 0.0224 880 100 0.0249 977 200 0.0498 1950 300 0.0747 2930 400 0.0996 3910 500 0.124 4890 600 0.149 5860 700 0.174 6840 800 0.199 7820 900 0.224 8800 1000 0.249 9770 2000 0.498 1.95 × 104 3000 0.747 2.93 × 104 4000 0.996 3.91 × 104 5000 1.24 4.89 × 104 6000 1.49 5.86 × 104 7000 1.74 6.84 × 104 8000 1.99 7.82 × 104 9000 2.24 8.80 × 104 1.00 × 104 2.49 9.77 × 104 2.00 × 104 4.98 1.95 × 105 3.00 × 104 7.47 2.93 × 105 3.04 × 104 7.56 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 45.0 0.0273 687 50.0 0.0304 764 60.0 0.0365 916 70.0 0.0425 1070 80.0 0.0486 1220 90.0 0.0547 1370 100 0.0608 1530 200 0.122 3050 300 0.182 4580 400 0.243 6110 500 0.304 7640 600 0.365 9160 700 0.425 1.07 × 104 800 0.486 1.22 × 104 900 0.547 1.37 × 104 1000 0.608 1.53 × 104 2000 1.22 3.05 × 104 3000 1.82 4.58 × 104 4000 2.43 6.11 × 104 5000 3.04 7.64 × 104 6000 3.65 9.16 × 104 7000 4.25 1.07 × 105 8000 4.86 1.22 × 105 9000 5.47 1.37 × 105 1.00 × 104 6.08 1.53 × 105 1.94 × 104 11.8 2.97 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 45.0 0.0567 990 50.0 0.0630 1100 60.0 0.0756 1320 70.0 0.0882 1540 80.0 0.101 1760 90.0 0.113 1980 100 0.126 2200 200 0.252 4400 300 0.378 6600 400 0.504 8800 500 0.630 1.10 × 104 600 0.756 1.32 × 104 700 0.882 1.54 × 104 800 1.01 1.76 × 104 900 1.13 1.98 × 104 1000 1.26 2.20 × 104 2000 2.52 4.40 × 104 3000 3.78 6.60 × 104 4000 5.04 8.80 × 104 5000 6.30 1.10 × 105 6000 7.56 1.32 × 105 7000 8.82 1.54 × 105 8000 10.1 1.76 × 105 8020 10.1 1.76 × 105
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 45.0 0.179 1760 50.0 0.199 1950 60.0 0.239 2350 70.0 0.279 2740 80.0 0.319 3130 90.0 0.358 3520 100 0.398 3910 200 0.796 7820 300 1.19 1.17 × 104 400 1.59 1.56 × 104 500 1.99 1.95 × 104 600 2.39 2.35 × 104 700 2.79 2.74 × 104 800 3.19 3.13 × 104 900 3.58 3.52 × 104 1000 3.98 3.91 × 104 2000 7.96 7.82 × 104 2540 10.1 9.92 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 45.0 0.438 2750 50.0 0.486 3050 60.0 0.583 3670 70.0 0.681 4280 80.0 0.778 4890 90.0 0.875 5500 100 0.972 6110 200 1.94 1.22 × 104 300 2.92 1.83 × 104 400 3.89 2.44 × 104 500 4.86 3.05 × 104 600 5.83 3.67 × 104 700 6.81 4.28 × 104 800 7.78 4.89 × 104 900 8.75 5.50 × 104 1000 9.72 6.11 × 104 1040 10.1 6.35 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 45.0 0.907 3960 50.0 1.01 4400 60.0 1.21 5280 70.0 1.41 6160 80.0 1.61 7040 90.0 1.81 7920 100 2.02 8800 200 4.03 1.76 × 104 300 6.05 2.64 × 104 400 8.06 3.52 × 104 500 10.1 4.40 × 104 501 10.1 4.41 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 45.0 1.68 5390 50.0 1.87 5990 60.0 2.24 7180 70.0 2.61 8380 80.0 2.99 9580 90.0 3.36 1.08 × 104 100 3.74 1.20 × 104 200 7.47 2.39 × 104 270 10.1 3.24 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 45.0 2.87 7040 50.0 3.19 7820 60.0 3.82 9380 70.0 4.46 1.09 × 104 80.0 5.10 1.25 × 104 90.0 5.73 1.41 × 104 100 6.37 1.56 × 104 159 10.1 2.48 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 45.0 4.59 8910 50.0 5.10 9900 60.0 6.12 1.19 × 104 70.0 7.14 1.39 × 104 80.0 8.17 1.58 × 104 90.0 9.19 1.78 × 104 99.0 10.1 1.96 × 104
 Steel I Beam: W10 × 45 (Wide Flange 10 inch tall × 45 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 45.0 7.00 1.10 × 104 50.0 7.78 1.22 × 104 60.0 9.33 1.47 × 104 64.9 10.1 1.59 × 104
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Learn the best principles to negotiate the salary you deserve!

Injection Molding Design Guide

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

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"?