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S Section Steel I Beam: S10 × 35
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Glossary » Beams » Simply Supported » Uniformly Distributed Load » Three 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 three equal spans, we compute the displacement at the middle of the first and the third spans, and the maximum normal stress stress_max 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 = 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 7.44 × 10-6 12.9
40.0 8.50 × 10-6 14.7
50.0 1.06 × 10-5 18.4
60.0 1.28 × 10-5 22.0
70.0 1.49 × 10-5 25.7
80.0 1.70 × 10-5 29.4
90.0 1.91 × 10-5 33.1
100 2.13 × 10-5 36.7
200 4.25 × 10-5 73.5
300 6.38 × 10-5 110
400 8.50 × 10-5 147
500 1.06 × 10-4 184
600 1.28 × 10-4 220
700 1.49 × 10-4 257
800 1.70 × 10-4 294
900 1.91 × 10-4 331
1000 2.13 × 10-4 367
2000 4.25 × 10-4 735
3000 6.38 × 10-4 1100
4000 8.50 × 10-4 1470
5000 0.00106 1840
6000 0.00128 2200
7000 0.00149 2570
8000 0.00170 2940
9000 0.00191 3310
1.00 × 104 0.00213 3670
2.00 × 104 0.00425 7350
3.00 × 104 0.00638 1.10 × 104
4.00 × 104 0.00850 1.47 × 104
5.00 × 104 0.0106 1.84 × 104
6.00 × 104 0.0128 2.20 × 104
7.00 × 104 0.0149 2.57 × 104
8.00 × 104 0.0170 2.94 × 104
9.00 × 104 0.0191 3.31 × 104
1.00 × 105 0.0213 3.67 × 104
2.00 × 105 0.0425 7.35 × 104
3.00 × 105 0.0638 1.10 × 105
4.00 × 105 0.0850 1.47 × 105
5.00 × 105 0.106 1.84 × 105
6.00 × 105 0.128 2.20 × 105
7.00 × 105 0.149 2.57 × 105
8.00 × 105 0.170 2.94 × 105
8.09 × 105 0.172 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 5.74 × 10-5 35.7
40.0 6.56 × 10-5 40.8
50.0 8.20 × 10-5 51.0
60.0 9.84 × 10-5 61.2
70.0 1.15 × 10-4 71.4
80.0 1.31 × 10-4 81.6
90.0 1.48 × 10-4 91.8
100 1.64 × 10-4 102
200 3.28 × 10-4 204
300 4.92 × 10-4 306
400 6.56 × 10-4 408
500 8.20 × 10-4 510
600 9.84 × 10-4 612
700 0.00115 714
800 0.00131 816
900 0.00148 918
1000 0.00164 1020
2000 0.00328 2040
3000 0.00492 3060
4000 0.00656 4080
5000 0.00820 5100
6000 0.00984 6120
7000 0.0115 7140
8000 0.0131 8160
9000 0.0148 9180
1.00 × 104 0.0164 1.02 × 104
2.00 × 104 0.0328 2.04 × 104
3.00 × 104 0.0492 3.06 × 104
4.00 × 104 0.0656 4.08 × 104
5.00 × 104 0.0820 5.10 × 104
6.00 × 104 0.0984 6.12 × 104
7.00 × 104 0.115 7.14 × 104
8.00 × 104 0.131 8.16 × 104
9.00 × 104 0.148 9.18 × 104
1.00 × 105 0.164 1.02 × 105
2.00 × 105 0.328 2.04 × 105
2.91 × 105 0.477 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 9.19 × 10-4 143
40.0 0.00105 163
50.0 0.00131 204
60.0 0.00157 245
70.0 0.00184 286
80.0 0.00210 327
90.0 0.00236 367
100 0.00262 408
200 0.00525 816
300 0.00787 1220
400 0.0105 1630
500 0.0131 2040
600 0.0157 2450
700 0.0184 2860
800 0.0210 3270
900 0.0236 3670
1000 0.0262 4080
2000 0.0525 8160
3000 0.0787 1.22 × 104
4000 0.105 1.63 × 104
5000 0.131 2.04 × 104
6000 0.157 2.45 × 104
7000 0.184 2.86 × 104
8000 0.210 3.27 × 104
9000 0.236 3.67 × 104
1.00 × 104 0.262 4.08 × 104
2.00 × 104 0.525 8.16 × 104
3.00 × 104 0.787 1.22 × 105
4.00 × 104 1.05 1.63 × 105
5.00 × 104 1.31 2.04 × 105
6.00 × 104 1.57 2.45 × 105
7.00 × 104 1.84 2.86 × 105
7.28 × 104 1.91 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 0.00465 321
40.0 0.00531 367
50.0 0.00664 459
60.0 0.00797 551
70.0 0.00930 643
80.0 0.0106 735
90.0 0.0120 827
100 0.0133 918
200 0.0266 1840
300 0.0399 2760
400 0.0531 3670
500 0.0664 4590
600 0.0797 5510
700 0.0930 6430
800 0.106 7350
900 0.120 8270
1000 0.133 9180
2000 0.266 1.84 × 104
3000 0.399 2.76 × 104
4000 0.531 3.67 × 104
5000 0.664 4.59 × 104
6000 0.797 5.51 × 104
7000 0.930 6.43 × 104
8000 1.06 7.35 × 104
9000 1.20 8.27 × 104
1.00 × 104 1.33 9.18 × 104
2.00 × 104 2.66 1.84 × 105
3.00 × 104 3.99 2.76 × 105
3.23 × 104 4.30 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 0.0147 571
40.0 0.0168 653
50.0 0.0210 816
60.0 0.0252 980
70.0 0.0294 1140
80.0 0.0336 1310
90.0 0.0378 1470
100 0.0420 1630
200 0.0840 3270
300 0.126 4900
400 0.168 6530
500 0.210 8160
600 0.252 9800
700 0.294 1.14 × 104
800 0.336 1.31 × 104
900 0.378 1.47 × 104
1000 0.420 1.63 × 104
2000 0.840 3.27 × 104
3000 1.26 4.90 × 104
4000 1.68 6.53 × 104
5000 2.10 8.16 × 104
6000 2.52 9.80 × 104
7000 2.94 1.14 × 105
8000 3.36 1.31 × 105
9000 3.78 1.47 × 105
1.00 × 104 4.20 1.63 × 105
1.82 × 104 7.64 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 0.0359 893
40.0 0.0410 1020
50.0 0.0513 1280
60.0 0.0615 1530
70.0 0.0718 1790
80.0 0.0820 2040
90.0 0.0923 2300
100 0.103 2550
200 0.205 5100
300 0.308 7650
400 0.410 1.02 × 104
500 0.513 1.28 × 104
600 0.615 1.53 × 104
700 0.718 1.79 × 104
800 0.820 2.04 × 104
900 0.923 2.30 × 104
1000 1.03 2.55 × 104
2000 2.05 5.10 × 104
3000 3.08 7.65 × 104
4000 4.10 1.02 × 105
5000 5.13 1.28 × 105
6000 6.15 1.53 × 105
7000 7.18 1.79 × 105
8000 8.20 2.04 × 105
9000 9.23 2.30 × 105
9750 10.0 2.49 × 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 0.0744 1290
40.0 0.0850 1470
50.0 0.106 1840
60.0 0.128 2200
70.0 0.149 2570
80.0 0.170 2940
90.0 0.191 3310
100 0.213 3670
200 0.425 7350
300 0.638 1.10 × 104
400 0.850 1.47 × 104
500 1.06 1.84 × 104
600 1.28 2.20 × 104
700 1.49 2.57 × 104
800 1.70 2.94 × 104
900 1.91 3.31 × 104
1000 2.13 3.67 × 104
2000 4.25 7.35 × 104
3000 6.38 1.10 × 105
4000 8.50 1.47 × 105
4700 10.0 1.73 × 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 0.235 2290
40.0 0.269 2610
50.0 0.336 3270
60.0 0.403 3920
70.0 0.470 4570
80.0 0.537 5220
90.0 0.605 5880
100 0.672 6530
200 1.34 1.31 × 104
300 2.02 1.96 × 104
400 2.69 2.61 × 104
500 3.36 3.27 × 104
600 4.03 3.92 × 104
700 4.70 4.57 × 104
800 5.37 5.22 × 104
900 6.05 5.88 × 104
1000 6.72 6.53 × 104
1490 10.0 9.72 × 104
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 0.574 3570
40.0 0.656 4080
50.0 0.820 5100
60.0 0.984 6120
70.0 1.15 7140
80.0 1.31 8160
90.0 1.48 9180
100 1.64 1.02 × 104
200 3.28 2.04 × 104
300 4.92 3.06 × 104
400 6.56 4.08 × 104
500 8.20 5.10 × 104
600 9.84 6.12 × 104
610 10.0 6.22 × 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 1.19 5140
40.0 1.36 5880
50.0 1.70 7350
60.0 2.04 8820
70.0 2.38 1.03 × 104
80.0 2.72 1.18 × 104
90.0 3.06 1.32 × 104
100 3.40 1.47 × 104
200 6.80 2.94 × 104
294 10.0 4.32 × 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 2.21 7000
40.0 2.52 8000
50.0 3.15 1.00 × 104
60.0 3.78 1.20 × 104
70.0 4.41 1.40 × 104
80.0 5.04 1.60 × 104
90.0 5.67 1.80 × 104
100 6.30 2.00 × 104
159 10.0 3.17 × 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 3.76 9140
40.0 4.30 1.04 × 104
50.0 5.37 1.31 × 104
60.0 6.45 1.57 × 104
70.0 7.52 1.83 × 104
80.0 8.60 2.09 × 104
90.0 9.67 2.35 × 104
93.0 10.0 2.43 × 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 6.03 1.16 × 104
40.0 6.89 1.32 × 104
50.0 8.61 1.65 × 104
58.1 10.0 1.92 × 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 9.19 1.43 × 104
38.1 10.0 1.56 × 104
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