*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
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
Transcribed Image Text:*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-
Transcribed Image Text: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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