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S Section Steel I Beam: S10 × 35
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Four Equal Spans » S Section Steel I Beam » S10 × 35
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 stress_max 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 = 147 in4) for the S10 × 35 S Section Steel I Beam and the typical Young's modulus (E = 3.046 × 107 psi) of steels. Note that the typical yielding stress Yield 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.
L = 3 ft
L = 5 ft
L = 10 ft
L = 15 ft
L = 20 ft
L = 25 ft
L = 30 ft
L = 40 ft
L = 50 ft
L = 60 ft
L = 70 ft
L = 80 ft
L = 90 ft
L = 100 ft
   
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 3.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 6.89 × 10-6 13.8
40.0 7.88 × 10-6 15.7
50.0 9.85 × 10-6 19.7
60.0 1.18 × 10-5 23.6
70.0 1.38 × 10-5 27.5
80.0 1.58 × 10-5 31.5
90.0 1.77 × 10-5 35.4
100 1.97 × 10-5 39.3
200 3.94 × 10-5 78.7
300 5.91 × 10-5 118
400 7.88 × 10-5 157
500 9.85 × 10-5 197
600 1.18 × 10-4 236
700 1.38 × 10-4 275
800 1.58 × 10-4 315
900 1.77 × 10-4 354
1000 1.97 × 10-4 393
2000 3.94 × 10-4 787
3000 5.91 × 10-4 1180
4000 7.88 × 10-4 1570
5000 9.85 × 10-4 1970
6000 0.00118 2360
7000 0.00138 2750
8000 0.00158 3150
9000 0.00177 3540
1.00 × 104 0.00197 3930
2.00 × 104 0.00394 7870
3.00 × 104 0.00591 1.18 × 104
4.00 × 104 0.00788 1.57 × 104
5.00 × 104 0.00985 1.97 × 104
6.00 × 104 0.0118 2.36 × 104
7.00 × 104 0.0138 2.75 × 104
8.00 × 104 0.0158 3.15 × 104
9.00 × 104 0.0177 3.54 × 104
1.00 × 105 0.0197 3.93 × 104
2.00 × 105 0.0394 7.87 × 104
3.00 × 105 0.0591 1.18 × 105
4.00 × 105 0.0788 1.57 × 105
5.00 × 105 0.0985 1.97 × 105
6.00 × 105 0.118 2.36 × 105
7.00 × 105 0.138 2.75 × 105
7.55 × 105 0.149 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 5.00 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 5.32 × 10-5 38.3
40.0 6.08 × 10-5 43.7
50.0 7.60 × 10-5 54.6
60.0 9.12 × 10-5 65.6
70.0 1.06 × 10-4 76.5
80.0 1.22 × 10-4 87.4
90.0 1.37 × 10-4 98.4
100 1.52 × 10-4 109
200 3.04 × 10-4 219
300 4.56 × 10-4 328
400 6.08 × 10-4 437
500 7.60 × 10-4 546
600 9.12 × 10-4 656
700 0.00106 765
800 0.00122 874
900 0.00137 984
1000 0.00152 1090
2000 0.00304 2190
3000 0.00456 3280
4000 0.00608 4370
5000 0.00760 5460
6000 0.00912 6560
7000 0.0106 7650
8000 0.0122 8740
9000 0.0137 9840
1.00 × 104 0.0152 1.09 × 104
2.00 × 104 0.0304 2.19 × 104
3.00 × 104 0.0456 3.28 × 104
4.00 × 104 0.0608 4.37 × 104
5.00 × 104 0.0760 5.46 × 104
6.00 × 104 0.0912 6.56 × 104
7.00 × 104 0.106 7.65 × 104
8.00 × 104 0.122 8.74 × 104
9.00 × 104 0.137 9.84 × 104
1.00 × 105 0.152 1.09 × 105
2.00 × 105 0.304 2.19 × 105
2.72 × 105 0.413 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 10.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 8.51 × 10-4 153
40.0 9.73 × 10-4 175
50.0 0.00122 219
60.0 0.00146 262
70.0 0.00170 306
80.0 0.00195 350
90.0 0.00219 393
100 0.00243 437
200 0.00486 874
300 0.00729 1310
400 0.00973 1750
500 0.0122 2190
600 0.0146 2620
700 0.0170 3060
800 0.0195 3500
900 0.0219 3930
1000 0.0243 4370
2000 0.0486 8740
3000 0.0729 1.31 × 104
4000 0.0973 1.75 × 104
5000 0.122 2.19 × 104
6000 0.146 2.62 × 104
7000 0.170 3.06 × 104
8000 0.195 3.50 × 104
9000 0.219 3.93 × 104
1.00 × 104 0.243 4.37 × 104
2.00 × 104 0.486 8.74 × 104
3.00 × 104 0.729 1.31 × 105
4.00 × 104 0.973 1.75 × 105
5.00 × 104 1.22 2.19 × 105
6.00 × 104 1.46 2.62 × 105
6.79 × 104 1.65 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 15.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.00431 344
40.0 0.00492 393
50.0 0.00615 492
60.0 0.00739 590
70.0 0.00862 689
80.0 0.00985 787
90.0 0.0111 885
100 0.0123 984
200 0.0246 1970
300 0.0369 2950
400 0.0492 3930
500 0.0615 4920
600 0.0739 5900
700 0.0862 6890
800 0.0985 7870
900 0.111 8850
1000 0.123 9840
2000 0.246 1.97 × 104
3000 0.369 2.95 × 104
4000 0.492 3.93 × 104
5000 0.615 4.92 × 104
6000 0.739 5.90 × 104
7000 0.862 6.89 × 104
8000 0.985 7.87 × 104
9000 1.11 8.85 × 104
1.00 × 104 1.23 9.84 × 104
2.00 × 104 2.46 1.97 × 105
3.00 × 104 3.69 2.95 × 105
3.02 × 104 3.72 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 20.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0136 612
40.0 0.0156 699
50.0 0.0195 874
60.0 0.0233 1050
70.0 0.0272 1220
80.0 0.0311 1400
90.0 0.0350 1570
100 0.0389 1750
200 0.0778 3500
300 0.117 5250
400 0.156 6990
500 0.195 8740
600 0.233 1.05 × 104
700 0.272 1.22 × 104
800 0.311 1.40 × 104
900 0.350 1.57 × 104
1000 0.389 1.75 × 104
2000 0.778 3.50 × 104
3000 1.17 5.25 × 104
4000 1.56 6.99 × 104
5000 1.95 8.74 × 104
6000 2.33 1.05 × 105
7000 2.72 1.22 × 105
8000 3.11 1.40 × 105
9000 3.50 1.57 × 105
1.00 × 104 3.89 1.75 × 105
1.70 × 104 6.61 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 25.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0332 956
40.0 0.0380 1090
50.0 0.0475 1370
60.0 0.0570 1640
70.0 0.0665 1910
80.0 0.0760 2190
90.0 0.0855 2460
100 0.0950 2730
200 0.190 5460
300 0.285 8200
400 0.380 1.09 × 104
500 0.475 1.37 × 104
600 0.570 1.64 × 104
700 0.665 1.91 × 104
800 0.760 2.19 × 104
900 0.855 2.46 × 104
1000 0.950 2.73 × 104
2000 1.90 5.46 × 104
3000 2.85 8.20 × 104
4000 3.80 1.09 × 105
5000 4.75 1.37 × 105
6000 5.70 1.64 × 105
7000 6.65 1.91 × 105
8000 7.60 2.19 × 105
9000 8.55 2.46 × 105
1.00 × 104 9.50 2.73 × 105
1.09 × 104 10.3 2.97 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 30.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.0689 1380
40.0 0.0788 1570
50.0 0.0985 1970
60.0 0.118 2360
70.0 0.138 2750
80.0 0.158 3150
90.0 0.177 3540
100 0.197 3930
200 0.394 7870
300 0.591 1.18 × 104
400 0.788 1.57 × 104
500 0.985 1.97 × 104
600 1.18 2.36 × 104
700 1.38 2.75 × 104
800 1.58 3.15 × 104
900 1.77 3.54 × 104
1000 1.97 3.93 × 104
2000 3.94 7.87 × 104
3000 5.91 1.18 × 105
4000 7.88 1.57 × 105
5000 9.85 1.97 × 105
5080 10.0 2.00 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 40.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.218 2450
40.0 0.249 2800
50.0 0.311 3500
60.0 0.373 4200
70.0 0.436 4900
80.0 0.498 5600
90.0 0.560 6290
100 0.622 6990
200 1.24 1.40 × 104
300 1.87 2.10 × 104
400 2.49 2.80 × 104
500 3.11 3.50 × 104
600 3.73 4.20 × 104
700 4.36 4.90 × 104
800 4.98 5.60 × 104
900 5.60 6.29 × 104
1000 6.22 6.99 × 104
1610 10.0 1.12 × 105
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 50.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 0.532 3830
40.0 0.608 4370
50.0 0.760 5460
60.0 0.912 6560
70.0 1.06 7650
80.0 1.22 8740
90.0 1.37 9840
100 1.52 1.09 × 104
200 3.04 2.19 × 104
300 4.56 3.28 × 104
400 6.08 4.37 × 104
500 7.60 5.46 × 104
600 9.12 6.56 × 104
658 10.0 7.19 × 104
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 60.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 1.10 5510
40.0 1.26 6290
50.0 1.58 7870
60.0 1.89 9440
70.0 2.21 1.10 × 104
80.0 2.52 1.26 × 104
90.0 2.84 1.42 × 104
100 3.15 1.57 × 104
200 6.30 3.15 × 104
300 9.45 4.72 × 104
317 10.0 4.99 × 104
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 70.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 2.04 7500
40.0 2.34 8570
50.0 2.92 1.07 × 104
60.0 3.50 1.29 × 104
70.0 4.09 1.50 × 104
80.0 4.67 1.71 × 104
90.0 5.25 1.93 × 104
100 5.84 2.14 × 104
171 10.0 3.67 × 104
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 80.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 3.49 9790
40.0 3.98 1.12 × 104
50.0 4.98 1.40 × 104
60.0 5.98 1.68 × 104
70.0 6.97 1.96 × 104
80.0 7.97 2.24 × 104
90.0 8.96 2.52 × 104
100 9.96 2.80 × 104
100 10.0 2.81 × 104
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 90.0 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 5.58 1.24 × 104
40.0 6.38 1.42 × 104
50.0 7.98 1.77 × 104
60.0 9.57 2.12 × 104
62.7 10.0 2.22 × 104
Steel I Beam: S10 × 35 (S10 inch tall × 35 lbf/ft)
L = 100 ft
P (lbf/ft) w_max (in) stress_max (psi)
35.0 8.51 1.53 × 104
40.0 9.73 1.75 × 104
41.1 10.0 1.80 × 104
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