S Section Steel I Beam: S8 × 23

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three Equal Spans » S Section Steel I Beam » S8 × 23
S Section 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 = 64.9 in4) for the S8 × 23 S Section 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: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 23.0 1.11 × 10-5 15.3 30.0 1.44 × 10-5 20.0 40.0 1.93 × 10-5 26.6 50.0 2.41 × 10-5 33.3 60.0 2.89 × 10-5 39.9 70.0 3.37 × 10-5 46.6 80.0 3.85 × 10-5 53.3 90.0 4.33 × 10-5 59.9 100 4.81 × 10-5 66.6 200 9.63 × 10-5 133 300 1.44 × 10-4 200 400 1.93 × 10-4 266 500 2.41 × 10-4 333 600 2.89 × 10-4 399 700 3.37 × 10-4 466 800 3.85 × 10-4 533 900 4.33 × 10-4 599 1000 4.81 × 10-4 666 2000 9.63 × 10-4 1330 3000 0.00144 2000 4000 0.00193 2660 5000 0.00241 3330 6000 0.00289 3990 7000 0.00337 4660 8000 0.00385 5330 9000 0.00433 5990 1.00 × 104 0.00481 6660 2.00 × 104 0.00963 1.33 × 104 3.00 × 104 0.0144 2.00 × 104 4.00 × 104 0.0193 2.66 × 104 5.00 × 104 0.0241 3.33 × 104 6.00 × 104 0.0289 3.99 × 104 7.00 × 104 0.0337 4.66 × 104 8.00 × 104 0.0385 5.33 × 104 9.00 × 104 0.0433 5.99 × 104 1.00 × 105 0.0481 6.66 × 104 2.00 × 105 0.0963 1.33 × 105 3.00 × 105 0.144 2.00 × 105 4.00 × 105 0.193 2.66 × 105 4.46 × 105 0.215 2.97 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 23.0 8.55 × 10-5 42.5 30.0 1.11 × 10-4 55.5 40.0 1.49 × 10-4 74.0 50.0 1.86 × 10-4 92.4 60.0 2.23 × 10-4 111 70.0 2.60 × 10-4 129 80.0 2.97 × 10-4 148 90.0 3.34 × 10-4 166 100 3.72 × 10-4 185 200 7.43 × 10-4 370 300 0.00111 555 400 0.00149 740 500 0.00186 924 600 0.00223 1110 700 0.00260 1290 800 0.00297 1480 900 0.00334 1660 1000 0.00372 1850 2000 0.00743 3700 3000 0.0111 5550 4000 0.0149 7400 5000 0.0186 9240 6000 0.0223 1.11 × 104 7000 0.0260 1.29 × 104 8000 0.0297 1.48 × 104 9000 0.0334 1.66 × 104 1.00 × 104 0.0372 1.85 × 104 2.00 × 104 0.0743 3.70 × 104 3.00 × 104 0.111 5.55 × 104 4.00 × 104 0.149 7.40 × 104 5.00 × 104 0.186 9.24 × 104 6.00 × 104 0.223 1.11 × 105 7.00 × 104 0.260 1.29 × 105 8.00 × 104 0.297 1.48 × 105 9.00 × 104 0.334 1.66 × 105 1.00 × 105 0.372 1.85 × 105 1.61 × 105 0.597 2.97 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 23.0 0.00137 170 30.0 0.00178 222 40.0 0.00238 296 50.0 0.00297 370 60.0 0.00357 444 70.0 0.00416 518 80.0 0.00476 592 90.0 0.00535 666 100 0.00594 740 200 0.0119 1480 300 0.0178 2220 400 0.0238 2960 500 0.0297 3700 600 0.0357 4440 700 0.0416 5180 800 0.0476 5920 900 0.0535 6660 1000 0.0594 7400 2000 0.119 1.48 × 104 3000 0.178 2.22 × 104 4000 0.238 2.96 × 104 5000 0.297 3.70 × 104 6000 0.357 4.44 × 104 7000 0.416 5.18 × 104 8000 0.476 5.92 × 104 9000 0.535 6.66 × 104 1.00 × 104 0.594 7.40 × 104 2.00 × 104 1.19 1.48 × 105 3.00 × 104 1.78 2.22 × 105 4.00 × 104 2.38 2.96 × 105 4.02 × 104 2.39 2.97 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 23.0 0.00692 383 30.0 0.00903 499 40.0 0.0120 666 50.0 0.0150 832 60.0 0.0181 998 70.0 0.0211 1160 80.0 0.0241 1330 90.0 0.0271 1500 100 0.0301 1660 200 0.0602 3330 300 0.0903 4990 400 0.120 6660 500 0.150 8320 600 0.181 9980 700 0.211 1.16 × 104 800 0.241 1.33 × 104 900 0.271 1.50 × 104 1000 0.301 1.66 × 104 2000 0.602 3.33 × 104 3000 0.903 4.99 × 104 4000 1.20 6.66 × 104 5000 1.50 8.32 × 104 6000 1.81 9.98 × 104 7000 2.11 1.16 × 105 8000 2.41 1.33 × 105 9000 2.71 1.50 × 105 1.00 × 104 3.01 1.66 × 105 1.78 × 104 5.37 2.97 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 23.0 0.0219 680 30.0 0.0285 888 40.0 0.0380 1180 50.0 0.0476 1480 60.0 0.0571 1780 70.0 0.0666 2070 80.0 0.0761 2370 90.0 0.0856 2660 100 0.0951 2960 200 0.190 5920 300 0.285 8880 400 0.380 1.18 × 104 500 0.476 1.48 × 104 600 0.571 1.78 × 104 700 0.666 2.07 × 104 800 0.761 2.37 × 104 900 0.856 2.66 × 104 1000 0.951 2.96 × 104 2000 1.90 5.92 × 104 3000 2.85 8.88 × 104 4000 3.80 1.18 × 105 5000 4.76 1.48 × 105 6000 5.71 1.78 × 105 7000 6.66 2.07 × 105 8000 7.61 2.37 × 105 8410 8.00 2.49 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 23.0 0.0534 1060 30.0 0.0697 1390 40.0 0.0929 1850 50.0 0.116 2310 60.0 0.139 2770 70.0 0.163 3240 80.0 0.186 3700 90.0 0.209 4160 100 0.232 4620 200 0.464 9240 300 0.697 1.39 × 104 400 0.929 1.85 × 104 500 1.16 2.31 × 104 600 1.39 2.77 × 104 700 1.63 3.24 × 104 800 1.86 3.70 × 104 900 2.09 4.16 × 104 1000 2.32 4.62 × 104 2000 4.64 9.24 × 104 3000 6.97 1.39 × 105 3450 8.00 1.59 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 23.0 0.111 1530 30.0 0.144 2000 40.0 0.193 2660 50.0 0.241 3330 60.0 0.289 3990 70.0 0.337 4660 80.0 0.385 5330 90.0 0.433 5990 100 0.481 6660 200 0.963 1.33 × 104 300 1.44 2.00 × 104 400 1.93 2.66 × 104 500 2.41 3.33 × 104 600 2.89 3.99 × 104 700 3.37 4.66 × 104 800 3.85 5.33 × 104 900 4.33 5.99 × 104 1000 4.81 6.66 × 104 1660 8.00 1.11 × 105
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 23.0 0.350 2720 30.0 0.457 3550 40.0 0.609 4730 50.0 0.761 5920 60.0 0.913 7100 70.0 1.07 8280 80.0 1.22 9470 90.0 1.37 1.07 × 104 100 1.52 1.18 × 104 200 3.04 2.37 × 104 300 4.57 3.55 × 104 400 6.09 4.73 × 104 500 7.61 5.92 × 104 526 8.00 6.22 × 104
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 23.0 0.855 4250 30.0 1.11 5550 40.0 1.49 7400 50.0 1.86 9240 60.0 2.23 1.11 × 104 70.0 2.60 1.29 × 104 80.0 2.97 1.48 × 104 90.0 3.34 1.66 × 104 100 3.72 1.85 × 104 200 7.43 3.70 × 104 215 8.00 3.98 × 104
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 23.0 1.77 6120 30.0 2.31 7990 40.0 3.08 1.07 × 104 50.0 3.85 1.33 × 104 60.0 4.62 1.60 × 104 70.0 5.39 1.86 × 104 80.0 6.16 2.13 × 104 90.0 6.93 2.40 × 104 100 7.70 2.66 × 104 104 8.00 2.76 × 104
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 23.0 3.28 8340 30.0 4.28 1.09 × 104 40.0 5.71 1.45 × 104 50.0 7.14 1.81 × 104 56.1 8.00 2.03 × 104
 Steel I Beam: S8 × 23 (S8 inch tall × 23 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 23.0 5.60 1.09 × 104 30.0 7.30 1.42 × 104 32.9 8.00 1.56 × 104