*11-8. Select the lightest-weight wide-flange beam fromAppendix B that will safely support the loading shown. Theallowable bending stress allow = 24 ksi and the allowableshear stress of Tallow14 ksi.=15 kip6 ft5 kip/ftProb. 11-89 ft- Wide-Flange Sections or W Shapes FPS UnitsWebthicknessIwin.Designationin. x lb/ftW24 x 104W24 x 94W24 x 84W24 x 76W24x68W24 x 62W24 x 55W18 x 65W18 x 60W18 x 55W18 x 50W18 x 46W18 x 40W18 x 35W16 x 57W16 x 50W16 x 45W16 x 36W16 x 31W16 x 26W14 x 53W14 x 43W14 x 38W14 x 34W14 x 30W14 x 26W14 x 22AreaAin²3830.627.724.722.420.119.117.616.214.713.511.810.318.2 23.7416.223.57Depthdin.15.612.624.0624.3124.1023.9223.7311.210.016.816.4314.7 16.2613.316.1310.615.869.1215.887.6815.6918.3518.2418.1117.9918.0617.9017.7013.9213.6614.1013.988.8513.847.69 13.916.49 13.740.5000.5150.4700.4400.4150.4300.3950.4500.4150.3900.3550.3600.3150.3000.4300.3800.3450.2950.2750.2500.3700.3050.3100.2850.2700.2550.230Flangewidthbyin.9.0208.9908.9657.0407.0057.5907.5557.53012.750 0.750 31002589.0650.8752700 2220.7702370 1960.680 21001760.58518301540.59015501310.505 1350 1147.4956.0606.0156.000thickness"fin.7.1207.0707.0356.9855.5255.5000.7500.6950.6300.5700.6050.5250.4250.7150.6300.5650.4300.4400.3458.0607.9956.7706.7456.730 0.3855.0250.4205.0000.3350.6600.530Iin40.5150.455x-x axisS75865992.281.0586 72.7448Tin.56.5375 47.230110.19.879.799.699.559.239.117.2157.6 7.04541 77.8428 62.7385 54.6340 48.6291 42.0245 35.3199 29.01070 117984 108890 98.3800 88.97.38712 78.8 7.25 22.5 7.43612 68.419.151015.3 5.127.497.477.416.726.686.656.516.4138.4 6.26I5.895.82y-y axisSin²r25940.72.91109 24.01.9894.4 20.9 1.9582.5 18.41.9270.4 15.71.8734.59.801.3829.1 8.30 1.34in.54.8 14.4 1.6950.1 13.31.6944.9 11.91.6740.1 10.7 1.651.296.35 1.271.2257.7 14.345.2 11.35.87 26.7 7.886.915.83 23.35.73 19.6 5.825.658.91 3.545.547.00 2.8043.112.11.6037.2 10.51.5932.8 9.341.5724.5 7.00 1.5212.4 4.491.179.59 3.491.121.921.891.551.531.491.081.04

*11-8. Select the lightest-weight wide-flange beam from Appendix B that will safely support the loading shown. The allowable bending stress allow = 24 ksi and the allowable shear stress of Tallow = 14 ksi. 15 kip 6 ft 5 kip/ft Prob. 11-8 9 ft

*11-8. Select the lightest-weight wide-flange beam from Appendix B that will safely support the loading shown. The allowable bending stress allow = 24 ksi and the allowable shear stress of Tallow = 14 ksi. 15 kip 6 ft 5 kip/ft Prob. 11-8 9 ft

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

*11-8. Select the lightest-weight wide-flange beam from
Appendix B that will safely support the loading shown. The
allowable bending stress allow = 24 ksi and the allowable
shear stress of Tallow
14 ksi.
=
15 kip
6 ft
5 kip/ft
Prob. 11-8
9 ft-

Wide-Flange Sections or W Shapes FPS Units
Web
thickness
Iw
in.
Designation
in. x lb/ft
W24 x 104
W24 x 94
W24 x 84
W24 x 76
W24x68
W24 x 62
W24 x 55
W18 x 65
W18 x 60
W18 x 55
W18 x 50
W18 x 46
W18 x 40
W18 x 35
W16 x 57
W16 x 50
W16 x 45
W16 x 36
W16 x 31
W16 x 26
W14 x 53
W14 x 43
W14 x 38
W14 x 34
W14 x 30
W14 x 26
W14 x 22
Area
A
in²
38
30.6
27.7
24.7
22.4
20.1
19.1
17.6
16.2
14.7
13.5
11.8
10.3
18.2 23.74
16.2
23.57
Depth
d
in.
15.6
12.6
24.06
24.31
24.10
23.92
23.73
11.2
10.0
16.8
16.43
14.7 16.26
13.3
16.13
10.6
15.86
9.12
15.88
7.68
15.69
18.35
18.24
18.11
17.99
18.06
17.90
17.70
13.92
13.66
14.10
13.98
8.85
13.84
7.69 13.91
6.49 13.74
0.500
0.515
0.470
0.440
0.415
0.430
0.395
0.450
0.415
0.390
0.355
0.360
0.315
0.300
0.430
0.380
0.345
0.295
0.275
0.250
0.370
0.305
0.310
0.285
0.270
0.255
0.230
Flange
width
by
in.
9.020
8.990
8.965
7.040
7.005
7.590
7.555
7.530
12.750 0.750 3100
258
9.065
0.875
2700 222
0.770
2370 196
0.680 2100
176
0.585
1830
154
0.590
1550
131
0.505 1350 114
7.495
6.060
6.015
6.000
thickness
"f
in.
7.120
7.070
7.035
6.985
5.525
5.500
0.750
0.695
0.630
0.570
0.605
0.525
0.425
0.715
0.630
0.565
0.430
0.440
0.345
8.060
7.995
6.770
6.745
6.730 0.385
5.025
0.420
5.000
0.335
0.660
0.530
I
in4
0.515
0.455
x-x axis
S
758
659
92.2
81.0
586 72.7
448
T
in.
56.5
375 47.2
301
10.1
9.87
9.79
9.69
9.55
9.23
9.11
7.21
57.6 7.04
541 77.8
428 62.7
385 54.6
340 48.6
291 42.0
245 35.3
199 29.0
1070 117
984 108
890 98.3
800 88.9
7.38
712 78.8 7.25 22.5 7.43
612 68.4
19.1
510
15.3 5.12
7.49
7.47
7.41
6.72
6.68
6.65
6.51
6.41
38.4 6.26
I
5.89
5.82
y-y axis
S
in²
r
259
40.7
2.91
109 24.0
1.98
94.4 20.9 1.95
82.5 18.4
1.92
70.4 15.7
1.87
34.5
9.80
1.38
29.1 8.30 1.34
in.
54.8 14.4 1.69
50.1 13.3
1.69
44.9 11.9
1.67
40.1 10.7 1.65
1.29
6.35 1.27
1.22
57.7 14.3
45.2 11.3
5.87 26.7 7.88
6.91
5.83 23.3
5.73 19.6 5.82
5.65
8.91 3.54
5.54
7.00 2.80
43.1
12.1
1.60
37.2 10.5
1.59
32.8 9.34
1.57
24.5 7.00 1.52
12.4 4.49
1.17
9.59 3.49
1.12
1.92
1.89
1.55
1.53
1.49
1.08
1.04

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