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A W21x73 is supported on simple supports on a 30-ft span. Calculate the plastic moment Mp. Assume that Fy=50 ksi.

A W21x73 is supported on simple supports on a 30-ft span. Calculate the plastic moment Mp. Assume that Fy=50 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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A W21x73 is supported on simple supports on a 30-ft span. Calculate the plastic moment Mp. Assume that Fy=50 ksi. TABLE A.1 U.S. Customary units Designation A in.? d in. ,in. Dy in. 1, in. S, in. in. ,in Z, in. S, in. in. W40 x 277 81.5 39.7 0.830 15.8 1.58 21,900 1100 16,4 1250 1040 132 3.58 W36 x 302 89.0 37.3 0.945 16.7 1.68 21,100 1130 15.4 1280 1300 156 3.82 W36 x 194 57.0 36.5 0.765 12.1 126 12,100 664 14.6 767 375 61.9 2.56 W36 x 150 44.3 35.9 0.625 12.0 0.94 9040 504 14.3 581 270 45.1 247 W33 x 118 34.7 32.9 0.550 11.5 0.74 5900 359 13,0 415 187 32.6 2.32 W30 x 108 31.7 29.8 0.545 10.5 0.76 4470 299 11.9 346 146 27,9 2.15 W30 x 99 29.0 29.7 0.520 10.5 0.67 3990 260 11.7 312 128 24.5 2.1 W27 x 114 33.6 273 0.570 10.1 0.93 4080 299 11.0 343 159 31.5 2.18 W27 x 94 27.6 269 0.490 10.0 0.745 3270 243 10.9 278 124 24.8 2.12 W24 x 162 478 25.0 0.705 13.0 122 5170 414 10.4 468 443 68.4 3.05 W24 x 104 30.7 24.1 0.500 12.8 0.75 3100 258 10.1 289 259 40.7 2.91 W24 x 84 24.7 24.1 0.470 9.02 0.77 2370 196 9.79 224 W24 x 76 22.4 239 0.440 94.4 20.9 1.95 8.99 0.68 2100 176 9.69 200 W21 x 83 244 21.4 0.515 82.5 18.4 192 8.36 0.835 1830 171 8.67 196 W21 x 73 21.5 212 81.4 19.5 1.83 0.455 8.3 0.74 1600 151 W21 x 62 18.3 8.64 172 70.6 17.0 181 21.0 0.400 8.24 0.615 1330 W21 x 50 127 8.54 144 57.5 14.0 1.77 147 208 0.380 6.53 0.535 984 W18 x 71 94.5 8.18 110 24.9 7.64 13 209 18.5 0.495 7.64 0.81 WIR 60 1170 127 7.5 146 60.3 16.8 176 18.2 0.415 7.56 1.7 0.695 984 108 7,47 123 50.1 133 WIA 50 14.7 18.0 0.355 168 7.5 0.57 800 88.9 7.38 101 WIR & 40 11.8 179 40.1 10.7 1.65 0.315 6.02 0.525 612 o0ו א5נא 294 68.4 7.21 78.4 19.1 6.35 127 170 0.585 10.4 0.985 1430 7.1 W16 x 46 175 198 186 35.7 2.51 133 16.1 0.345 7.04 0.565 W16 36 586 72.7 6.65 82.3 328 9.34 1.57 306 159 0.295 6.99 O.43 W16 - 26 448 565 6.51 640 24.5 7.0 1.52 768 15.7 0.250 5.5 0.345 301 38 4 6.26 44.2 9,59 349 1.12 O a.717 kpis ft Ob. 629 kpis ft Oc 160 kpis ft Od 184 kpis ft
Transcribed Image Text:A W21x73 is supported on simple supports on a 30-ft span. Calculate the plastic moment Mp. Assume that Fy=50 ksi. TABLE A.1 U.S. Customary units Designation A in.? d in. ,in. Dy in. 1, in. S, in. in. ,in Z, in. S, in. in. W40 x 277 81.5 39.7 0.830 15.8 1.58 21,900 1100 16,4 1250 1040 132 3.58 W36 x 302 89.0 37.3 0.945 16.7 1.68 21,100 1130 15.4 1280 1300 156 3.82 W36 x 194 57.0 36.5 0.765 12.1 126 12,100 664 14.6 767 375 61.9 2.56 W36 x 150 44.3 35.9 0.625 12.0 0.94 9040 504 14.3 581 270 45.1 247 W33 x 118 34.7 32.9 0.550 11.5 0.74 5900 359 13,0 415 187 32.6 2.32 W30 x 108 31.7 29.8 0.545 10.5 0.76 4470 299 11.9 346 146 27,9 2.15 W30 x 99 29.0 29.7 0.520 10.5 0.67 3990 260 11.7 312 128 24.5 2.1 W27 x 114 33.6 273 0.570 10.1 0.93 4080 299 11.0 343 159 31.5 2.18 W27 x 94 27.6 269 0.490 10.0 0.745 3270 243 10.9 278 124 24.8 2.12 W24 x 162 478 25.0 0.705 13.0 122 5170 414 10.4 468 443 68.4 3.05 W24 x 104 30.7 24.1 0.500 12.8 0.75 3100 258 10.1 289 259 40.7 2.91 W24 x 84 24.7 24.1 0.470 9.02 0.77 2370 196 9.79 224 W24 x 76 22.4 239 0.440 94.4 20.9 1.95 8.99 0.68 2100 176 9.69 200 W21 x 83 244 21.4 0.515 82.5 18.4 192 8.36 0.835 1830 171 8.67 196 W21 x 73 21.5 212 81.4 19.5 1.83 0.455 8.3 0.74 1600 151 W21 x 62 18.3 8.64 172 70.6 17.0 181 21.0 0.400 8.24 0.615 1330 W21 x 50 127 8.54 144 57.5 14.0 1.77 147 208 0.380 6.53 0.535 984 W18 x 71 94.5 8.18 110 24.9 7.64 13 209 18.5 0.495 7.64 0.81 WIR 60 1170 127 7.5 146 60.3 16.8 176 18.2 0.415 7.56 1.7 0.695 984 108 7,47 123 50.1 133 WIA 50 14.7 18.0 0.355 168 7.5 0.57 800 88.9 7.38 101 WIR & 40 11.8 179 40.1 10.7 1.65 0.315 6.02 0.525 612 o0ו א5נא 294 68.4 7.21 78.4 19.1 6.35 127 170 0.585 10.4 0.985 1430 7.1 W16 x 46 175 198 186 35.7 2.51 133 16.1 0.345 7.04 0.565 W16 36 586 72.7 6.65 82.3 328 9.34 1.57 306 159 0.295 6.99 O.43 W16 - 26 448 565 6.51 640 24.5 7.0 1.52 768 15.7 0.250 5.5 0.345 301 38 4 6.26 44.2 9,59 349 1.12 O a.717 kpis ft Ob. 629 kpis ft Oc 160 kpis ft Od 184 kpis ft
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