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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W24 × 55
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 = 1350 in4) for the W24 × 55 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: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 55.0 1.27 × 10-6 5.19 60.0 1.39 × 10-6 5.66 70.0 1.62 × 10-6 6.60 80.0 1.85 × 10-6 7.54 90.0 2.08 × 10-6 8.49 100 2.31 × 10-6 9.43 200 4.63 × 10-6 18.9 300 6.94 × 10-6 28.3 400 9.26 × 10-6 37.7 500 1.16 × 10-5 47.1 600 1.39 × 10-5 56.6 700 1.62 × 10-5 66.0 800 1.85 × 10-5 75.4 900 2.08 × 10-5 84.9 1000 2.31 × 10-5 94.3 2000 4.63 × 10-5 189 3000 6.94 × 10-5 283 4000 9.26 × 10-5 377 5000 1.16 × 10-4 471 6000 1.39 × 10-4 566 7000 1.62 × 10-4 660 8000 1.85 × 10-4 754 9000 2.08 × 10-4 849 1.00 × 104 2.31 × 10-4 943 2.00 × 104 4.63 × 10-4 1890 3.00 × 104 6.94 × 10-4 2830 4.00 × 104 9.26 × 10-4 3770 5.00 × 104 0.00116 4710 6.00 × 104 0.00139 5660 7.00 × 104 0.00162 6600 8.00 × 104 0.00185 7540 9.00 × 104 0.00208 8490 1.00 × 105 0.00231 9430 2.00 × 105 0.00463 1.89 × 104 3.00 × 105 0.00694 2.83 × 104 4.00 × 105 0.00926 3.77 × 104 5.00 × 105 0.0116 4.71 × 104 6.00 × 105 0.0139 5.66 × 104 7.00 × 105 0.0162 6.60 × 104 8.00 × 105 0.0185 7.54 × 104 9.00 × 105 0.0208 8.49 × 104 1.00 × 106 0.0231 9.43 × 104 2.00 × 106 0.0463 1.89 × 105 3.00 × 106 0.0694 2.83 × 105 3.15 × 106 0.0729 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 55.0 9.82 × 10-6 14.4 60.0 1.07 × 10-5 15.7 70.0 1.25 × 10-5 18.3 80.0 1.43 × 10-5 21.0 90.0 1.61 × 10-5 23.6 100 1.79 × 10-5 26.2 200 3.57 × 10-5 52.4 300 5.36 × 10-5 78.6 400 7.14 × 10-5 105 500 8.93 × 10-5 131 600 1.07 × 10-4 157 700 1.25 × 10-4 183 800 1.43 × 10-4 210 900 1.61 × 10-4 236 1000 1.79 × 10-4 262 2000 3.57 × 10-4 524 3000 5.36 × 10-4 786 4000 7.14 × 10-4 1050 5000 8.93 × 10-4 1310 6000 0.00107 1570 7000 0.00125 1830 8000 0.00143 2100 9000 0.00161 2360 1.00 × 104 0.00179 2620 2.00 × 104 0.00357 5240 3.00 × 104 0.00536 7860 4.00 × 104 0.00714 1.05 × 104 5.00 × 104 0.00893 1.31 × 104 6.00 × 104 0.0107 1.57 × 104 7.00 × 104 0.0125 1.83 × 104 8.00 × 104 0.0143 2.10 × 104 9.00 × 104 0.0161 2.36 × 104 1.00 × 105 0.0179 2.62 × 104 2.00 × 105 0.0357 5.24 × 104 3.00 × 105 0.0536 7.86 × 104 4.00 × 105 0.0714 1.05 × 105 5.00 × 105 0.0893 1.31 × 105 6.00 × 105 0.107 1.57 × 105 7.00 × 105 0.125 1.83 × 105 8.00 × 105 0.143 2.10 × 105 9.00 × 105 0.161 2.36 × 105 1.00 × 106 0.179 2.62 × 105 1.13 × 106 0.203 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 55.0 1.57 × 10-4 57.6 60.0 1.71 × 10-4 62.9 70.0 2.00 × 10-4 73.3 80.0 2.29 × 10-4 83.8 90.0 2.57 × 10-4 94.3 100 2.86 × 10-4 105 200 5.72 × 10-4 210 300 8.57 × 10-4 314 400 0.00114 419 500 0.00143 524 600 0.00171 629 700 0.00200 733 800 0.00229 838 900 0.00257 943 1000 0.00286 1050 2000 0.00572 2100 3000 0.00857 3140 4000 0.0114 4190 5000 0.0143 5240 6000 0.0171 6290 7000 0.0200 7330 8000 0.0229 8380 9000 0.0257 9430 1.00 × 104 0.0286 1.05 × 104 2.00 × 104 0.0572 2.10 × 104 3.00 × 104 0.0857 3.14 × 104 4.00 × 104 0.114 4.19 × 104 5.00 × 104 0.143 5.24 × 104 6.00 × 104 0.171 6.29 × 104 7.00 × 104 0.200 7.33 × 104 8.00 × 104 0.229 8.38 × 104 9.00 × 104 0.257 9.43 × 104 1.00 × 105 0.286 1.05 × 105 2.00 × 105 0.572 2.10 × 105 2.84 × 105 0.810 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 55.0 7.96 × 10-4 130 60.0 8.68 × 10-4 141 70.0 0.00101 165 80.0 0.00116 189 90.0 0.00130 212 100 0.00145 236 200 0.00289 471 300 0.00434 707 400 0.00579 943 500 0.00723 1180 600 0.00868 1410 700 0.0101 1650 800 0.0116 1890 900 0.0130 2120 1000 0.0145 2360 2000 0.0289 4710 3000 0.0434 7070 4000 0.0579 9430 5000 0.0723 1.18 × 104 6000 0.0868 1.41 × 104 7000 0.101 1.65 × 104 8000 0.116 1.89 × 104 9000 0.130 2.12 × 104 1.00 × 104 0.145 2.36 × 104 2.00 × 104 0.289 4.71 × 104 3.00 × 104 0.434 7.07 × 104 4.00 × 104 0.579 9.43 × 104 5.00 × 104 0.723 1.18 × 105 6.00 × 104 0.868 1.41 × 105 7.00 × 104 1.01 1.65 × 105 8.00 × 104 1.16 1.89 × 105 9.00 × 104 1.30 2.12 × 105 1.00 × 105 1.45 2.36 × 105 1.26 × 105 1.82 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 55.0 0.00251 230 60.0 0.00274 251 70.0 0.00320 293 80.0 0.00366 335 90.0 0.00412 377 100 0.00457 419 200 0.00914 838 300 0.0137 1260 400 0.0183 1680 500 0.0229 2100 600 0.0274 2510 700 0.0320 2930 800 0.0366 3350 900 0.0412 3770 1000 0.0457 4190 2000 0.0914 8380 3000 0.137 1.26 × 104 4000 0.183 1.68 × 104 5000 0.229 2.10 × 104 6000 0.274 2.51 × 104 7000 0.320 2.93 × 104 8000 0.366 3.35 × 104 9000 0.412 3.77 × 104 1.00 × 104 0.457 4.19 × 104 2.00 × 104 0.914 8.38 × 104 3.00 × 104 1.37 1.26 × 105 4.00 × 104 1.83 1.68 × 105 5.00 × 104 2.29 2.10 × 105 6.00 × 104 2.74 2.51 × 105 7.00 × 104 3.20 2.93 × 105 7.09 × 104 3.24 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 55.0 0.00614 360 60.0 0.00670 393 70.0 0.00781 458 80.0 0.00893 524 90.0 0.0100 589 100 0.0112 655 200 0.0223 1310 300 0.0335 1960 400 0.0447 2620 500 0.0558 3270 600 0.0670 3930 700 0.0781 4580 800 0.0893 5240 900 0.100 5890 1000 0.112 6550 2000 0.223 1.31 × 104 3000 0.335 1.96 × 104 4000 0.447 2.62 × 104 5000 0.558 3.27 × 104 6000 0.670 3.93 × 104 7000 0.781 4.58 × 104 8000 0.893 5.24 × 104 9000 1.00 5.89 × 104 1.00 × 104 1.12 6.55 × 104 2.00 × 104 2.23 1.31 × 105 3.00 × 104 3.35 1.96 × 105 4.00 × 104 4.47 2.62 × 105 4.54 × 104 5.06 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 55.0 0.0127 519 60.0 0.0139 566 70.0 0.0162 660 80.0 0.0185 754 90.0 0.0208 849 100 0.0231 943 200 0.0463 1890 300 0.0694 2830 400 0.0926 3770 500 0.116 4710 600 0.139 5660 700 0.162 6600 800 0.185 7540 900 0.208 8490 1000 0.231 9430 2000 0.463 1.89 × 104 3000 0.694 2.83 × 104 4000 0.926 3.77 × 104 5000 1.16 4.71 × 104 6000 1.39 5.66 × 104 7000 1.62 6.60 × 104 8000 1.85 7.54 × 104 9000 2.08 8.49 × 104 1.00 × 104 2.31 9.43 × 104 2.00 × 104 4.63 1.89 × 105 3.00 × 104 6.94 2.83 × 105 3.15 × 104 7.29 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 55.0 0.0402 922 60.0 0.0439 1010 70.0 0.0512 1170 80.0 0.0585 1340 90.0 0.0658 1510 100 0.0732 1680 200 0.146 3350 300 0.219 5030 400 0.293 6700 500 0.366 8380 600 0.439 1.01 × 104 700 0.512 1.17 × 104 800 0.585 1.34 × 104 900 0.658 1.51 × 104 1000 0.732 1.68 × 104 2000 1.46 3.35 × 104 3000 2.19 5.03 × 104 4000 2.93 6.70 × 104 5000 3.66 8.38 × 104 6000 4.39 1.01 × 105 7000 5.12 1.17 × 105 8000 5.85 1.34 × 105 9000 6.58 1.51 × 105 1.00 × 104 7.32 1.68 × 105 1.77 × 104 13.0 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 55.0 0.0982 1440 60.0 0.107 1570 70.0 0.125 1830 80.0 0.143 2100 90.0 0.161 2360 100 0.179 2620 200 0.357 5240 300 0.536 7860 400 0.714 1.05 × 104 500 0.893 1.31 × 104 600 1.07 1.57 × 104 700 1.25 1.83 × 104 800 1.43 2.10 × 104 900 1.61 2.36 × 104 1000 1.79 2.62 × 104 2000 3.57 5.24 × 104 3000 5.36 7.86 × 104 4000 7.14 1.05 × 105 5000 8.93 1.31 × 105 6000 10.7 1.57 × 105 7000 12.5 1.83 × 105 8000 14.3 2.10 × 105 9000 16.1 2.36 × 105 1.00 × 104 17.9 2.62 × 105 1.13 × 104 20.3 2.97 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 55.0 0.204 2070 60.0 0.222 2260 70.0 0.259 2640 80.0 0.296 3020 90.0 0.333 3390 100 0.370 3770 200 0.741 7540 300 1.11 1.13 × 104 400 1.48 1.51 × 104 500 1.85 1.89 × 104 600 2.22 2.26 × 104 700 2.59 2.64 × 104 800 2.96 3.02 × 104 900 3.33 3.39 × 104 1000 3.70 3.77 × 104 2000 7.41 7.54 × 104 3000 11.1 1.13 × 105 4000 14.8 1.51 × 105 5000 18.5 1.89 × 105 6000 22.2 2.26 × 105 6360 23.6 2.40 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 55.0 0.377 2820 60.0 0.412 3080 70.0 0.480 3590 80.0 0.549 4110 90.0 0.618 4620 100 0.686 5130 200 1.37 1.03 × 104 300 2.06 1.54 × 104 400 2.74 2.05 × 104 500 3.43 2.57 × 104 600 4.12 3.08 × 104 700 4.80 3.59 × 104 800 5.49 4.11 × 104 900 6.18 4.62 × 104 1000 6.86 5.13 × 104 2000 13.7 1.03 × 105 3000 20.6 1.54 × 105 3440 23.6 1.76 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 55.0 0.644 3690 60.0 0.702 4020 70.0 0.819 4690 80.0 0.936 5360 90.0 1.05 6030 100 1.17 6700 200 2.34 1.34 × 104 300 3.51 2.01 × 104 400 4.68 2.68 × 104 500 5.85 3.35 × 104 600 7.02 4.02 × 104 700 8.19 4.69 × 104 800 9.36 5.36 × 104 900 10.5 6.03 × 104 1000 11.7 6.70 × 104 2000 23.4 1.34 × 105 2010 23.6 1.35 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 55.0 1.03 4670 60.0 1.12 5090 70.0 1.31 5940 80.0 1.50 6790 90.0 1.69 7640 100 1.87 8490 200 3.75 1.70 × 104 300 5.62 2.55 × 104 400 7.50 3.39 × 104 500 9.37 4.24 × 104 600 11.2 5.09 × 104 700 13.1 5.94 × 104 800 15.0 6.79 × 104 900 16.9 7.64 × 104 1000 18.7 8.49 × 104 1260 23.6 1.07 × 105
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 55.0 1.57 5760 60.0 1.71 6290 70.0 2.00 7330 80.0 2.29 8380 90.0 2.57 9430 100 2.86 1.05 × 104 200 5.72 2.10 × 104 300 8.57 3.14 × 104 400 11.4 4.19 × 104 500 14.3 5.24 × 104 600 17.1 6.29 × 104 700 20.0 7.33 × 104 800 22.9 8.38 × 104 825 23.6 8.64 × 104
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 55.0 3.84 9000 60.0 4.19 9820 70.0 4.88 1.15 × 104 80.0 5.58 1.31 × 104 90.0 6.28 1.47 × 104 100 6.98 1.64 × 104 200 14.0 3.27 × 104 300 20.9 4.91 × 104 338 23.6 5.53 × 104
 Steel I Beam: W24 × 55 (Wide Flange 24 inch tall × 55 lbf/ft) L = 150 ft (lbf/ft) (in) (psi) 55.0 7.96 1.30 × 104 60.0 8.68 1.41 × 104 70.0 10.1 1.65 × 104 80.0 11.6 1.89 × 104 90.0 13.0 2.12 × 104 100 14.5 2.36 × 104 163 23.6 3.84 × 104
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Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.