S Section Steel I Beam: S15 × 42.9

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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » S Section Steel I Beam » S15 × 42.9
S Section Steel I Beam | Single Span | Two Equal Spans | Three Equal Spans | Four Equal Spans

For a simply supported beam in four equal spans, we compute the displacement at the middle of the first and fourth spans, and the maximum normal stress occuring at the second and fourth supports of the beam.
The tabulated data listed in this page are calculated based on the area moment of inertia (Ixx = 447 in4) for the S15 × 42.9 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: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 3.00 ft (lbf/ft) (in) (psi) 42.9 2.78 × 10-6 8.33 50.0 3.24 × 10-6 9.70 60.0 3.89 × 10-6 11.6 70.0 4.53 × 10-6 13.6 80.0 5.18 × 10-6 15.5 90.0 5.83 × 10-6 17.5 100 6.48 × 10-6 19.4 200 1.30 × 10-5 38.8 300 1.94 × 10-5 58.2 400 2.59 × 10-5 77.6 500 3.24 × 10-5 97.0 600 3.89 × 10-5 116 700 4.53 × 10-5 136 800 5.18 × 10-5 155 900 5.83 × 10-5 175 1000 6.48 × 10-5 194 2000 1.30 × 10-4 388 3000 1.94 × 10-4 582 4000 2.59 × 10-4 776 5000 3.24 × 10-4 970 6000 3.89 × 10-4 1160 7000 4.53 × 10-4 1360 8000 5.18 × 10-4 1550 9000 5.83 × 10-4 1750 1.00 × 104 6.48 × 10-4 1940 2.00 × 104 0.00130 3880 3.00 × 104 0.00194 5820 4.00 × 104 0.00259 7760 5.00 × 104 0.00324 9700 6.00 × 104 0.00389 1.16 × 104 7.00 × 104 0.00453 1.36 × 104 8.00 × 104 0.00518 1.55 × 104 9.00 × 104 0.00583 1.75 × 104 1.00 × 105 0.00648 1.94 × 104 2.00 × 105 0.0130 3.88 × 104 3.00 × 105 0.0194 5.82 × 104 4.00 × 105 0.0259 7.76 × 104 5.00 × 105 0.0324 9.70 × 104 6.00 × 105 0.0389 1.16 × 105 7.00 × 105 0.0453 1.36 × 105 8.00 × 105 0.0518 1.55 × 105 9.00 × 105 0.0583 1.75 × 105 1.00 × 106 0.0648 1.94 × 105 1.53 × 106 0.0991 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 5.00 ft (lbf/ft) (in) (psi) 42.9 2.14 × 10-5 23.1 50.0 2.50 × 10-5 27.0 60.0 3.00 × 10-5 32.3 70.0 3.50 × 10-5 37.7 80.0 4.00 × 10-5 43.1 90.0 4.50 × 10-5 48.5 100 5.00 × 10-5 53.9 200 1.00 × 10-4 108 300 1.50 × 10-4 162 400 2.00 × 10-4 216 500 2.50 × 10-4 270 600 3.00 × 10-4 323 700 3.50 × 10-4 377 800 4.00 × 10-4 431 900 4.50 × 10-4 485 1000 5.00 × 10-4 539 2000 1.00 × 10-3 1080 3000 0.00150 1620 4000 0.00200 2160 5000 0.00250 2700 6000 0.00300 3230 7000 0.00350 3770 8000 0.00400 4310 9000 0.00450 4850 1.00 × 104 0.00500 5390 2.00 × 104 0.0100 1.08 × 104 3.00 × 104 0.0150 1.62 × 104 4.00 × 104 0.0200 2.16 × 104 5.00 × 104 0.0250 2.70 × 104 6.00 × 104 0.0300 3.23 × 104 7.00 × 104 0.0350 3.77 × 104 8.00 × 104 0.0400 4.31 × 104 9.00 × 104 0.0450 4.85 × 104 1.00 × 105 0.0500 5.39 × 104 2.00 × 105 0.100 1.08 × 105 3.00 × 105 0.150 1.62 × 105 4.00 × 105 0.200 2.16 × 105 5.00 × 105 0.250 2.70 × 105 5.51 × 105 0.275 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 10.0 ft (lbf/ft) (in) (psi) 42.9 3.43 × 10-4 92.5 50.0 4.00 × 10-4 108 60.0 4.80 × 10-4 129 70.0 5.60 × 10-4 151 80.0 6.40 × 10-4 173 90.0 7.20 × 10-4 194 100 8.00 × 10-4 216 200 0.00160 431 300 0.00240 647 400 0.00320 863 500 0.00400 1080 600 0.00480 1290 700 0.00560 1510 800 0.00640 1730 900 0.00720 1940 1000 0.00800 2160 2000 0.0160 4310 3000 0.0240 6470 4000 0.0320 8630 5000 0.0400 1.08 × 104 6000 0.0480 1.29 × 104 7000 0.0560 1.51 × 104 8000 0.0640 1.73 × 104 9000 0.0720 1.94 × 104 1.00 × 104 0.0800 2.16 × 104 2.00 × 104 0.160 4.31 × 104 3.00 × 104 0.240 6.47 × 104 4.00 × 104 0.320 8.63 × 104 5.00 × 104 0.400 1.08 × 105 6.00 × 104 0.480 1.29 × 105 7.00 × 104 0.560 1.51 × 105 8.00 × 104 0.640 1.73 × 105 9.00 × 104 0.720 1.94 × 105 1.00 × 105 0.800 2.16 × 105 1.38 × 105 1.10 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 15.0 ft (lbf/ft) (in) (psi) 42.9 0.00174 208 50.0 0.00202 243 60.0 0.00243 291 70.0 0.00283 340 80.0 0.00324 388 90.0 0.00364 437 100 0.00405 485 200 0.00810 970 300 0.0121 1460 400 0.0162 1940 500 0.0202 2430 600 0.0243 2910 700 0.0283 3400 800 0.0324 3880 900 0.0364 4370 1000 0.0405 4850 2000 0.0810 9700 3000 0.121 1.46 × 104 4000 0.162 1.94 × 104 5000 0.202 2.43 × 104 6000 0.243 2.91 × 104 7000 0.283 3.40 × 104 8000 0.324 3.88 × 104 9000 0.364 4.37 × 104 1.00 × 104 0.405 4.85 × 104 2.00 × 104 0.810 9.70 × 104 3.00 × 104 1.21 1.46 × 105 4.00 × 104 1.62 1.94 × 105 5.00 × 104 2.02 2.43 × 105 6.00 × 104 2.43 2.91 × 105 6.12 × 104 2.48 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 20.0 ft (lbf/ft) (in) (psi) 42.9 0.00549 370 50.0 0.00640 431 60.0 0.00768 518 70.0 0.00896 604 80.0 0.0102 690 90.0 0.0115 776 100 0.0128 863 200 0.0256 1730 300 0.0384 2590 400 0.0512 3450 500 0.0640 4310 600 0.0768 5180 700 0.0896 6040 800 0.102 6900 900 0.115 7760 1000 0.128 8630 2000 0.256 1.73 × 104 3000 0.384 2.59 × 104 4000 0.512 3.45 × 104 5000 0.640 4.31 × 104 6000 0.768 5.18 × 104 7000 0.896 6.04 × 104 8000 1.02 6.90 × 104 9000 1.15 7.76 × 104 1.00 × 104 1.28 8.63 × 104 2.00 × 104 2.56 1.73 × 105 3.00 × 104 3.84 2.59 × 105 3.44 × 104 4.41 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 25.0 ft (lbf/ft) (in) (psi) 42.9 0.0134 578 50.0 0.0156 674 60.0 0.0187 809 70.0 0.0219 943 80.0 0.0250 1080 90.0 0.0281 1210 100 0.0312 1350 200 0.0625 2700 300 0.0937 4040 400 0.125 5390 500 0.156 6740 600 0.187 8090 700 0.219 9430 800 0.250 1.08 × 104 900 0.281 1.21 × 104 1000 0.312 1.35 × 104 2000 0.625 2.70 × 104 3000 0.937 4.04 × 104 4000 1.25 5.39 × 104 5000 1.56 6.74 × 104 6000 1.87 8.09 × 104 7000 2.19 9.43 × 104 8000 2.50 1.08 × 105 9000 2.81 1.21 × 105 1.00 × 104 3.12 1.35 × 105 2.00 × 104 6.25 2.70 × 105 2.20 × 104 6.88 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 30.0 ft (lbf/ft) (in) (psi) 42.9 0.0278 833 50.0 0.0324 970 60.0 0.0389 1160 70.0 0.0453 1360 80.0 0.0518 1550 90.0 0.0583 1750 100 0.0648 1940 200 0.130 3880 300 0.194 5820 400 0.259 7760 500 0.324 9700 600 0.389 1.16 × 104 700 0.453 1.36 × 104 800 0.518 1.55 × 104 900 0.583 1.75 × 104 1000 0.648 1.94 × 104 2000 1.30 3.88 × 104 3000 1.94 5.82 × 104 4000 2.59 7.76 × 104 5000 3.24 9.70 × 104 6000 3.89 1.16 × 105 7000 4.53 1.36 × 105 8000 5.18 1.55 × 105 9000 5.83 1.75 × 105 1.00 × 104 6.48 1.94 × 105 1.53 × 104 9.91 2.97 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 40.0 ft (lbf/ft) (in) (psi) 42.9 0.0878 1480 50.0 0.102 1730 60.0 0.123 2070 70.0 0.143 2420 80.0 0.164 2760 90.0 0.184 3110 100 0.205 3450 200 0.409 6900 300 0.614 1.04 × 104 400 0.819 1.38 × 104 500 1.02 1.73 × 104 600 1.23 2.07 × 104 700 1.43 2.42 × 104 800 1.64 2.76 × 104 900 1.84 3.11 × 104 1000 2.05 3.45 × 104 2000 4.09 6.90 × 104 3000 6.14 1.04 × 105 4000 8.19 1.38 × 105 5000 10.2 1.73 × 105 6000 12.3 2.07 × 105 7000 14.3 2.42 × 105 7330 15.0 2.53 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 50.0 ft (lbf/ft) (in) (psi) 42.9 0.214 2310 50.0 0.250 2700 60.0 0.300 3230 70.0 0.350 3770 80.0 0.400 4310 90.0 0.450 4850 100 0.500 5390 200 1.00 1.08 × 104 300 1.50 1.62 × 104 400 2.00 2.16 × 104 500 2.50 2.70 × 104 600 3.00 3.23 × 104 700 3.50 3.77 × 104 800 4.00 4.31 × 104 900 4.50 4.85 × 104 1000 5.00 5.39 × 104 2000 10.0 1.08 × 105 3000 15.0 1.62 × 105 3000 15.0 1.62 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 60.0 ft (lbf/ft) (in) (psi) 42.9 0.445 3330 50.0 0.518 3880 60.0 0.622 4660 70.0 0.725 5430 80.0 0.829 6210 90.0 0.933 6990 100 1.04 7760 200 2.07 1.55 × 104 300 3.11 2.33 × 104 400 4.15 3.11 × 104 500 5.18 3.88 × 104 600 6.22 4.66 × 104 700 7.25 5.43 × 104 800 8.29 6.21 × 104 900 9.33 6.99 × 104 1000 10.4 7.76 × 104 1450 15.0 1.12 × 105
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 70.0 ft (lbf/ft) (in) (psi) 42.9 0.824 4530 50.0 0.960 5280 60.0 1.15 6340 70.0 1.34 7400 80.0 1.54 8450 90.0 1.73 9510 100 1.92 1.06 × 104 200 3.84 2.11 × 104 300 5.76 3.17 × 104 400 7.68 4.23 × 104 500 9.60 5.28 × 104 600 11.5 6.34 × 104 700 13.4 7.40 × 104 781 15.0 8.26 × 104
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 80.0 ft (lbf/ft) (in) (psi) 42.9 1.41 5920 50.0 1.64 6900 60.0 1.97 8280 70.0 2.29 9660 80.0 2.62 1.10 × 104 90.0 2.95 1.24 × 104 100 3.28 1.38 × 104 200 6.55 2.76 × 104 300 9.83 4.14 × 104 400 13.1 5.52 × 104 458 15.0 6.32 × 104
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 90.0 ft (lbf/ft) (in) (psi) 42.9 2.25 7490 50.0 2.62 8730 60.0 3.15 1.05 × 104 70.0 3.67 1.22 × 104 80.0 4.20 1.40 × 104 90.0 4.72 1.57 × 104 100 5.25 1.75 × 104 200 10.5 3.49 × 104 286 15.0 4.99 × 104
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 100 ft (lbf/ft) (in) (psi) 42.9 3.43 9250 50.0 4.00 1.08 × 104 60.0 4.80 1.29 × 104 70.0 5.60 1.51 × 104 80.0 6.40 1.73 × 104 90.0 7.20 1.94 × 104 100 8.00 2.16 × 104 188 15.0 4.05 × 104
 Steel I Beam: S15 × 42.9 (S15 inch tall × 42.9 lbf/ft) L = 125 ft (lbf/ft) (in) (psi) 42.9 8.37 1.45 × 104 50.0 9.76 1.68 × 104 60.0 11.7 2.02 × 104 70.0 13.7 2.36 × 104 76.8 15.0 2.59 × 104