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Select a 30-ft long W12 section of A992 steel to support a tensile service dead load of 130 kips and a tensile service live load of 110 kips. As shown in the figure, the member is to have a two lines of bolts in each flange for 7/8-in bolts (at least three in a line 4 in. on center). Use Fy = 50 ksi and Fu = 65 ksi.

Select a 30-ft long W12 section of A992 steel to support a tensile service dead load of 130 kips and a tensile service live load of 110 kips. As shown in the figure, the member is to have a two lines of bolts in each flange for 7/8-in bolts (at least three in a line 4 in. on center). Use Fy = 50 ksi and Fu = 65 ksi.

Structural Analysis
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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Select a 30-ft long W12 section of A992 steel to support a tensile service
dead load of 130 kips and a tensile service live load of 110 kips. As
shown in the figure, the member is to have a two lines of bolts in each
flange for 7/8-in bolts (at least three in a line 4 in. on center).
Use Fy = 50 ksi and Fu = 65 ksi.

Table 1-1 (continued) W-Shapes Dimensions Web Flange Distance Area, A Depth, Work- k Table Gage in. in. 15/1 9% 52 15/1e Shape Thickness, Width, Thickness, kaes kat in? in. in. in. in. in. in. in. in. 14.6 12.2 12 0.370 % 13.1 12.1 12 0.335 1 8.05 8 11.7 11.9 12 0.295 e 1e 8.01 8 10.3 12.5 122 0.300 16 16 6.56 62 0.520 % 0.820 11s % 10% 3½ 8.79 12.3 12% 0.260 % 7.65 12.2 124 0.230 V4 6.48 12.3 124 0.260 5.57 12.2 12% 0.235 V 4.71 12.0 12 0.220 Va 4.16 11.9 11% 0.200 16 Ve W12x50 x45 /16 8.08 8% 0.640 % 1.14 12 0.575 1.08 1 0.515 1.02 1% x40 W12x35 6.52 62 0.440 he 0.740 1% 6.49 62 0.380 % 0.680 1V1s % x30 x26 W12x22 x19 x16 x14 0.425 h6 0.725 15/1 % 10% 2 0.350 % 0.650 % 0.265 V 0.565 11 he 0.225 V 0.525 % 4.03 4 4.01 3.99 4 3.97 4 Table 1-1 (continued) W-Shapes Properties W14-W12 Compact Nom Section inal Criteria Wt. Torsional Properties Axis X-X Axis Y-Y C. Ib/ft 26 50 6.31 26.8 45 7.00 29.6 40 7.77 33.6 in. in. in. in. in. in. in. in. in. in. in. in. 56.3 13.9 1.96 21.3 2.25 11.6 12.4 1.95 19.0 223 11.5 11.0 1.94 747 1.54 624 1.52 5.34 1.51 64.2 5.18 71.9 57.7 5.15 64.2 51.5 5.13 57.0 391 1.71 1880 348 50.0 1.26 0.906 1650 16.8 2.21 11.4 11.5 1.79 12.0 9.56 1.77 11.9 8.17 1.75 11.8 307 44.1 1440 35 6.31 36.2 285 45.6 5.25 51.2 24.5 0.741 30 7.41 41.8 26 8.54 47.2 879 720 607 38.6 5.21 43.1 238 204 20.3 0.457 33.4 5.17 37.2 17.3 0.300 22 4.74 41.8 19 5.72 46.2 16 7.53 49.4 14 8.82 54.3 25.4 4.91 29.3 21.3 4.82 24.7 4.67 20.1 88.6 14.9 4.62 17.4 4.66 231 0.848 3.66 1.04 11.9 3.76 1.88 0.822 2.98 1.02 11.9 2.82 1.41 0.773 2.26 0.983 11.7 2.36 156 0.293 164 130 0.180 131 103 17.1 0.103 96.9 1.19 0.753 1.90 0.961 11.7 0.0704 80.4
Transcribed Image Text:Table 1-1 (continued) W-Shapes Dimensions Web Flange Distance Area, A Depth, Work- k Table Gage in. in. 15/1 9% 52 15/1e Shape Thickness, Width, Thickness, kaes kat in? in. in. in. in. in. in. in. in. 14.6 12.2 12 0.370 % 13.1 12.1 12 0.335 1 8.05 8 11.7 11.9 12 0.295 e 1e 8.01 8 10.3 12.5 122 0.300 16 16 6.56 62 0.520 % 0.820 11s % 10% 3½ 8.79 12.3 12% 0.260 % 7.65 12.2 124 0.230 V4 6.48 12.3 124 0.260 5.57 12.2 12% 0.235 V 4.71 12.0 12 0.220 Va 4.16 11.9 11% 0.200 16 Ve W12x50 x45 /16 8.08 8% 0.640 % 1.14 12 0.575 1.08 1 0.515 1.02 1% x40 W12x35 6.52 62 0.440 he 0.740 1% 6.49 62 0.380 % 0.680 1V1s % x30 x26 W12x22 x19 x16 x14 0.425 h6 0.725 15/1 % 10% 2 0.350 % 0.650 % 0.265 V 0.565 11 he 0.225 V 0.525 % 4.03 4 4.01 3.99 4 3.97 4 Table 1-1 (continued) W-Shapes Properties W14-W12 Compact Nom Section inal Criteria Wt. Torsional Properties Axis X-X Axis Y-Y C. Ib/ft 26 50 6.31 26.8 45 7.00 29.6 40 7.77 33.6 in. in. in. in. in. in. in. in. in. in. in. in. 56.3 13.9 1.96 21.3 2.25 11.6 12.4 1.95 19.0 223 11.5 11.0 1.94 747 1.54 624 1.52 5.34 1.51 64.2 5.18 71.9 57.7 5.15 64.2 51.5 5.13 57.0 391 1.71 1880 348 50.0 1.26 0.906 1650 16.8 2.21 11.4 11.5 1.79 12.0 9.56 1.77 11.9 8.17 1.75 11.8 307 44.1 1440 35 6.31 36.2 285 45.6 5.25 51.2 24.5 0.741 30 7.41 41.8 26 8.54 47.2 879 720 607 38.6 5.21 43.1 238 204 20.3 0.457 33.4 5.17 37.2 17.3 0.300 22 4.74 41.8 19 5.72 46.2 16 7.53 49.4 14 8.82 54.3 25.4 4.91 29.3 21.3 4.82 24.7 4.67 20.1 88.6 14.9 4.62 17.4 4.66 231 0.848 3.66 1.04 11.9 3.76 1.88 0.822 2.98 1.02 11.9 2.82 1.41 0.773 2.26 0.983 11.7 2.36 156 0.293 164 130 0.180 131 103 17.1 0.103 96.9 1.19 0.753 1.90 0.961 11.7 0.0704 80.4
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