Wide Flange Steel I Beam: W8 × 24

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » Wide Flange Steel I Beam » W8 × 24
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 = 82.8 in4) for the W8 × 24 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: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 24.0 9.06 × 10-6 12.4 30.0 1.13 × 10-5 15.5 40.0 1.51 × 10-5 20.7 50.0 1.89 × 10-5 25.9 60.0 2.26 × 10-5 31.0 70.0 2.64 × 10-5 36.2 80.0 3.02 × 10-5 41.4 90.0 3.40 × 10-5 46.5 100 3.77 × 10-5 51.7 200 7.55 × 10-5 103 300 1.13 × 10-4 155 400 1.51 × 10-4 207 500 1.89 × 10-4 259 600 2.26 × 10-4 310 700 2.64 × 10-4 362 800 3.02 × 10-4 414 900 3.40 × 10-4 465 1000 3.77 × 10-4 517 2000 7.55 × 10-4 1030 3000 0.00113 1550 4000 0.00151 2070 5000 0.00189 2590 6000 0.00226 3100 7000 0.00264 3620 8000 0.00302 4140 9000 0.00340 4650 1.00 × 104 0.00377 5170 2.00 × 104 0.00755 1.03 × 104 3.00 × 104 0.0113 1.55 × 104 4.00 × 104 0.0151 2.07 × 104 5.00 × 104 0.0189 2.59 × 104 6.00 × 104 0.0226 3.10 × 104 7.00 × 104 0.0264 3.62 × 104 8.00 × 104 0.0302 4.14 × 104 9.00 × 104 0.0340 4.65 × 104 1.00 × 105 0.0377 5.17 × 104 2.00 × 105 0.0755 1.03 × 105 3.00 × 105 0.113 1.55 × 105 4.00 × 105 0.151 2.07 × 105 5.00 × 105 0.189 2.59 × 105 5.74 × 105 0.217 2.97 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 24.0 6.99 × 10-5 34.5 30.0 8.74 × 10-5 43.1 40.0 1.16 × 10-4 57.5 50.0 1.46 × 10-4 71.8 60.0 1.75 × 10-4 86.2 70.0 2.04 × 10-4 101 80.0 2.33 × 10-4 115 90.0 2.62 × 10-4 129 100 2.91 × 10-4 144 200 5.82 × 10-4 287 300 8.74 × 10-4 431 400 0.00116 575 500 0.00146 718 600 0.00175 862 700 0.00204 1010 800 0.00233 1150 900 0.00262 1290 1000 0.00291 1440 2000 0.00582 2870 3000 0.00874 4310 4000 0.0116 5750 5000 0.0146 7180 6000 0.0175 8620 7000 0.0204 1.01 × 104 8000 0.0233 1.15 × 104 9000 0.0262 1.29 × 104 1.00 × 104 0.0291 1.44 × 104 2.00 × 104 0.0582 2.87 × 104 3.00 × 104 0.0874 4.31 × 104 4.00 × 104 0.116 5.75 × 104 5.00 × 104 0.146 7.18 × 104 6.00 × 104 0.175 8.62 × 104 7.00 × 104 0.204 1.01 × 105 8.00 × 104 0.233 1.15 × 105 9.00 × 104 0.262 1.29 × 105 1.00 × 105 0.291 1.44 × 105 2.00 × 105 0.582 2.87 × 105 2.07 × 105 0.602 2.97 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 24.0 0.00112 138 30.0 0.00140 172 40.0 0.00186 230 50.0 0.00233 287 60.0 0.00280 345 70.0 0.00326 402 80.0 0.00373 460 90.0 0.00419 517 100 0.00466 575 200 0.00932 1150 300 0.0140 1720 400 0.0186 2300 500 0.0233 2870 600 0.0280 3450 700 0.0326 4020 800 0.0373 4600 900 0.0419 5170 1000 0.0466 5750 2000 0.0932 1.15 × 104 3000 0.140 1.72 × 104 4000 0.186 2.30 × 104 5000 0.233 2.87 × 104 6000 0.280 3.45 × 104 7000 0.326 4.02 × 104 8000 0.373 4.60 × 104 9000 0.419 5.17 × 104 1.00 × 104 0.466 5.75 × 104 2.00 × 104 0.932 1.15 × 105 3.00 × 104 1.40 1.72 × 105 4.00 × 104 1.86 2.30 × 105 5.00 × 104 2.33 2.87 × 105 5.17 × 104 2.41 2.97 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 24.0 0.00566 310 30.0 0.00708 388 40.0 0.00944 517 50.0 0.0118 646 60.0 0.0142 776 70.0 0.0165 905 80.0 0.0189 1030 90.0 0.0212 1160 100 0.0236 1290 200 0.0472 2590 300 0.0708 3880 400 0.0944 5170 500 0.118 6460 600 0.142 7760 700 0.165 9050 800 0.189 1.03 × 104 900 0.212 1.16 × 104 1000 0.236 1.29 × 104 2000 0.472 2.59 × 104 3000 0.708 3.88 × 104 4000 0.944 5.17 × 104 5000 1.18 6.46 × 104 6000 1.42 7.76 × 104 7000 1.65 9.05 × 104 8000 1.89 1.03 × 105 9000 2.12 1.16 × 105 1.00 × 104 2.36 1.29 × 105 2.00 × 104 4.72 2.59 × 105 2.30 × 104 5.42 2.97 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 24.0 0.0179 552 30.0 0.0224 690 40.0 0.0298 919 50.0 0.0373 1150 60.0 0.0447 1380 70.0 0.0522 1610 80.0 0.0596 1840 90.0 0.0671 2070 100 0.0745 2300 200 0.149 4600 300 0.224 6900 400 0.298 9190 500 0.373 1.15 × 104 600 0.447 1.38 × 104 700 0.522 1.61 × 104 800 0.596 1.84 × 104 900 0.671 2.07 × 104 1000 0.745 2.30 × 104 2000 1.49 4.60 × 104 3000 2.24 6.90 × 104 4000 2.98 9.19 × 104 5000 3.73 1.15 × 105 6000 4.47 1.38 × 105 7000 5.22 1.61 × 105 8000 5.96 1.84 × 105 9000 6.71 2.07 × 105 1.00 × 104 7.45 2.30 × 105 1.29 × 104 9.63 2.97 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 24.0 0.0437 862 30.0 0.0546 1080 40.0 0.0728 1440 50.0 0.0910 1800 60.0 0.109 2150 70.0 0.127 2510 80.0 0.146 2870 90.0 0.164 3230 100 0.182 3590 200 0.364 7180 300 0.546 1.08 × 104 400 0.728 1.44 × 104 500 0.910 1.80 × 104 600 1.09 2.15 × 104 700 1.27 2.51 × 104 800 1.46 2.87 × 104 900 1.64 3.23 × 104 1000 1.82 3.59 × 104 2000 3.64 7.18 × 104 3000 5.46 1.08 × 105 4000 7.28 1.44 × 105 4360 7.93 1.56 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 24.0 0.0906 1240 30.0 0.113 1550 40.0 0.151 2070 50.0 0.189 2590 60.0 0.226 3100 70.0 0.264 3620 80.0 0.302 4140 90.0 0.340 4650 100 0.377 5170 200 0.755 1.03 × 104 300 1.13 1.55 × 104 400 1.51 2.07 × 104 500 1.89 2.59 × 104 600 2.26 3.10 × 104 700 2.64 3.62 × 104 800 3.02 4.14 × 104 900 3.40 4.65 × 104 1000 3.77 5.17 × 104 2000 7.55 1.03 × 105 2100 7.93 1.09 × 105
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 24.0 0.286 2210 30.0 0.358 2760 40.0 0.477 3680 50.0 0.596 4600 60.0 0.716 5520 70.0 0.835 6440 80.0 0.954 7360 90.0 1.07 8270 100 1.19 9190 200 2.39 1.84 × 104 300 3.58 2.76 × 104 400 4.77 3.68 × 104 500 5.96 4.60 × 104 600 7.16 5.52 × 104 665 7.93 6.11 × 104
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 24.0 0.699 3450 30.0 0.874 4310 40.0 1.16 5750 50.0 1.46 7180 60.0 1.75 8620 70.0 2.04 1.01 × 104 80.0 2.33 1.15 × 104 90.0 2.62 1.29 × 104 100 2.91 1.44 × 104 200 5.82 2.87 × 104 272 7.93 3.91 × 104
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 24.0 1.45 4960 30.0 1.81 6210 40.0 2.42 8270 50.0 3.02 1.03 × 104 60.0 3.62 1.24 × 104 70.0 4.23 1.45 × 104 80.0 4.83 1.65 × 104 90.0 5.43 1.86 × 104 100 6.04 2.07 × 104 131 7.93 2.72 × 104
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 24.0 2.68 6760 30.0 3.36 8450 40.0 4.47 1.13 × 104 50.0 5.59 1.41 × 104 60.0 6.71 1.69 × 104 70.0 7.83 1.97 × 104 70.9 7.93 2.00 × 104
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 24.0 4.58 8830 30.0 5.73 1.10 × 104 40.0 7.63 1.47 × 104 41.6 7.93 1.53 × 104
 Steel I Beam: W8 × 24 (Wide Flange 8 inch tall × 24 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 24.0 7.34 1.12 × 104 25.9 7.93 1.21 × 104