8) What is the two-way shear capacity of a footing supporting a 16 in square column?

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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8) What is the two-way shear capacity of a footing supporting a 16 in square column?
d = 13.25 in, f =3000 psi.
LRFD
STANDARD LOAD TABLE FOR LONGSPAN STEEL JOISTS, LH-SERIES
Based on a 50 ksi Maximum Yield Strength - Loads Shown in Pounds per Linear Foot (plf)
Approx. Wt
Designation in Lbs. Per
Linear Ft.
Joist
Depth
SAFELOAD*
in
in Lbs.
CLEAR SPAN IN FEET
inches
Between
(Joists Only)
47-59 60-64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
351
132
459
40LH08
16
40
24900 24900 381
370
361
342
333
325
316
309
301
294
288
280
274
267
261
150
144
138
472
127
122
436
117
112
108
403
104
100
97
93
90
86
349
83
342
40LH09
21
40
32700 32700 498
484
447
424
414
394
384
375
366
358
196
188
180
173
166
160
153
147
141
136
131
126
122
118
113
109
40LH10
21
40
36000 36000
550
535
520
507
493
481
469
457
445
435
424
414
403
393
382
373
216
207
198
190
183
176
169
162
156
150
144
139
134
129
124
119
39300 39300 598
234
47850 47850 729
40LH11
22
40
582
567
552
537
523
510
498
484
472
462
450
439
429
418
409
224
215
207
198
190
183
619
176
603
169
163
157
559
151
145
140
135
507
130
495
40LH12
25
40
708
688
670
652
636
588
573
546
532
519
285
251
222
189
273
835
157
585
261
241
231
213
712
205
197
182
176
628
169
613
163
56400 56400 859
334
984
40LH13
30
40
813
792
771
750
730
694
676
660
643
598
231
320
957
307
295
283
271
260
834
250
813
241
223
753
214
207
199
699
192
64500 64500
185
666
40LH14
35
40
930
904
880
856
309
949
792
772
735
717
682
383
72150 72150 1101
351
336
323
273
874
263
233
367
1068 1036 1006
297
924
225
766
285
252
828
243
807
216
747
209
729
40LH15
36
40
978
898
850
786
427
408
390
373
357
342
328
315
302
290
279
268
258
933
304
248
239
230
1065 1036
79500 79500 1212 1194 1176
469
1158
428
1009
342
40LH16
42
40
1095
1141
416
1126
982
329
957
316
909
292
886
282
864
271
455
441
404
387
371
356
52-59 60-72
30000 30000
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
44LH09
19
397
152
388
370
136
44
408
379
363
354
346
339
331
324
316
310
303
297
291
158
146
141
127
106
96
93
131
399
122
381
118
373
114
110
103
342
99
44LH10
21
44
33150 33150
450
439
429
418
408
390
364
357
349
334
327
321
174
487
168
162
465
155
150
442
162
144
139
423
134
130
125
121
117
113
110
106
354
103
44LH11
22
44
35850 35850
475
453
433
157
414
403
396
387
378
370
363
348
188
181
175
168
151
146
140
136
131
127
123
119
115
111
44LH12
25
44
44400 44400 603
589
224
574
561
547
534
520
508
179
496
484
166
472
462
450
439
430
420
232
215
207
200
192
185
172
160
155
149
139
134
507
144
52650 52650
275
60600 60600 823
44LH13
30
44
715
699
681
666
649
634
619
606
592
579
565
553
541
529
519
265
254
246
236
228
220
212
205
198
191
185
179
173
167
161
44LH14
31
44
801
780
759
739
721
703
685
669
654
637
622
609
594
580
568
315
302
291
279
268
259
249
240
231
223
207
215
750
252
200
714
193
187
181
44LH15
36
44
70500 70500 958
826
786
768
699
934
352
81300 81300 1105 1078
912
339
889
326
868
314
847
303
805
281
732
243
682
667
366
292
271
261
234
227
219
211
44LH16
42
44
1051
1026
1002
978
955
933
912
891
870
852
832
814
796
780
421
405
390
375
1138
336
1125 1098 1072 1048 1024
362
348
324
313
302
291
978
327
282
957
316
272
263
255
246
876
44LH17
47
44
87300 87300 1185
1170 1153
936
895
1000
338
915
295
450
438
426
415
405
390
376
363
351
305
285
276
56-59
60-80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
48LH10
21
48
30000 30000
369
361
354
346
339
331
325
318
312
306
300
294
288
282
277
271
141
136
132
127
123
119
116
112
343
108
105
102
99
96
93
90
87
48LH11
22
48
32550 32550 399
390
382
373
366
358
351
337
330
324
318
312
306
300
294
152
147
133
142
483
179
137
129
125
442
156
120
433
151
117
113
110
106
103
100
97
94
369
48LH12
25
48
41100 41100
504
399
391
376
493
185
472
462
451
161
424
147
415
142
408
384
191
603
228
58050 58050 712
269
66750 66750 817
308
76950 76950 943
173
564
206
133
129
126
459
167
138
122
118
48LH13
29
48
49200 49200
589
576
552
540
529
517
507
498
487
477
468
450
441
221
213
199
193
187
180
175
170
585
164
159
154
150
145
141
48LH14
32
48
696
681
666
651
637
624
610
598
574
562
550
540
529
519
260
799
251
781
243
765
220
717
206
687
181
633
234
227
732
212
702
199
672
193
658
187
645
176
619
171
607
165
595
48LH15
36
48
748
298
287
901
278
882
269
260
252
244
236
228
221
214
208
201
195
189
48LH16
42
48
922
864
844
826
810
792
777
760
745
730
715
702
688
289
928
324
280
909
314
263
331
86400 86400 1059 1035 1012
371
355
343
320
310
969
346
299
271
889
255
247
239
232
225
218
772
245
48LH17
47
48
990
358
948
335
871
294
853
285
837
820
268
804
260
787
397
383
304
276
252
Transcribed Image Text:8) What is the two-way shear capacity of a footing supporting a 16 in square column? d = 13.25 in, f =3000 psi. LRFD STANDARD LOAD TABLE FOR LONGSPAN STEEL JOISTS, LH-SERIES Based on a 50 ksi Maximum Yield Strength - Loads Shown in Pounds per Linear Foot (plf) Approx. Wt Designation in Lbs. Per Linear Ft. Joist Depth SAFELOAD* in in Lbs. CLEAR SPAN IN FEET inches Between (Joists Only) 47-59 60-64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 351 132 459 40LH08 16 40 24900 24900 381 370 361 342 333 325 316 309 301 294 288 280 274 267 261 150 144 138 472 127 122 436 117 112 108 403 104 100 97 93 90 86 349 83 342 40LH09 21 40 32700 32700 498 484 447 424 414 394 384 375 366 358 196 188 180 173 166 160 153 147 141 136 131 126 122 118 113 109 40LH10 21 40 36000 36000 550 535 520 507 493 481 469 457 445 435 424 414 403 393 382 373 216 207 198 190 183 176 169 162 156 150 144 139 134 129 124 119 39300 39300 598 234 47850 47850 729 40LH11 22 40 582 567 552 537 523 510 498 484 472 462 450 439 429 418 409 224 215 207 198 190 183 619 176 603 169 163 157 559 151 145 140 135 507 130 495 40LH12 25 40 708 688 670 652 636 588 573 546 532 519 285 251 222 189 273 835 157 585 261 241 231 213 712 205 197 182 176 628 169 613 163 56400 56400 859 334 984 40LH13 30 40 813 792 771 750 730 694 676 660 643 598 231 320 957 307 295 283 271 260 834 250 813 241 223 753 214 207 199 699 192 64500 64500 185 666 40LH14 35 40 930 904 880 856 309 949 792 772 735 717 682 383 72150 72150 1101 351 336 323 273 874 263 233 367 1068 1036 1006 297 924 225 766 285 252 828 243 807 216 747 209 729 40LH15 36 40 978 898 850 786 427 408 390 373 357 342 328 315 302 290 279 268 258 933 304 248 239 230 1065 1036 79500 79500 1212 1194 1176 469 1158 428 1009 342 40LH16 42 40 1095 1141 416 1126 982 329 957 316 909 292 886 282 864 271 455 441 404 387 371 356 52-59 60-72 30000 30000 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 44LH09 19 397 152 388 370 136 44 408 379 363 354 346 339 331 324 316 310 303 297 291 158 146 141 127 106 96 93 131 399 122 381 118 373 114 110 103 342 99 44LH10 21 44 33150 33150 450 439 429 418 408 390 364 357 349 334 327 321 174 487 168 162 465 155 150 442 162 144 139 423 134 130 125 121 117 113 110 106 354 103 44LH11 22 44 35850 35850 475 453 433 157 414 403 396 387 378 370 363 348 188 181 175 168 151 146 140 136 131 127 123 119 115 111 44LH12 25 44 44400 44400 603 589 224 574 561 547 534 520 508 179 496 484 166 472 462 450 439 430 420 232 215 207 200 192 185 172 160 155 149 139 134 507 144 52650 52650 275 60600 60600 823 44LH13 30 44 715 699 681 666 649 634 619 606 592 579 565 553 541 529 519 265 254 246 236 228 220 212 205 198 191 185 179 173 167 161 44LH14 31 44 801 780 759 739 721 703 685 669 654 637 622 609 594 580 568 315 302 291 279 268 259 249 240 231 223 207 215 750 252 200 714 193 187 181 44LH15 36 44 70500 70500 958 826 786 768 699 934 352 81300 81300 1105 1078 912 339 889 326 868 314 847 303 805 281 732 243 682 667 366 292 271 261 234 227 219 211 44LH16 42 44 1051 1026 1002 978 955 933 912 891 870 852 832 814 796 780 421 405 390 375 1138 336 1125 1098 1072 1048 1024 362 348 324 313 302 291 978 327 282 957 316 272 263 255 246 876 44LH17 47 44 87300 87300 1185 1170 1153 936 895 1000 338 915 295 450 438 426 415 405 390 376 363 351 305 285 276 56-59 60-80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 48LH10 21 48 30000 30000 369 361 354 346 339 331 325 318 312 306 300 294 288 282 277 271 141 136 132 127 123 119 116 112 343 108 105 102 99 96 93 90 87 48LH11 22 48 32550 32550 399 390 382 373 366 358 351 337 330 324 318 312 306 300 294 152 147 133 142 483 179 137 129 125 442 156 120 433 151 117 113 110 106 103 100 97 94 369 48LH12 25 48 41100 41100 504 399 391 376 493 185 472 462 451 161 424 147 415 142 408 384 191 603 228 58050 58050 712 269 66750 66750 817 308 76950 76950 943 173 564 206 133 129 126 459 167 138 122 118 48LH13 29 48 49200 49200 589 576 552 540 529 517 507 498 487 477 468 450 441 221 213 199 193 187 180 175 170 585 164 159 154 150 145 141 48LH14 32 48 696 681 666 651 637 624 610 598 574 562 550 540 529 519 260 799 251 781 243 765 220 717 206 687 181 633 234 227 732 212 702 199 672 193 658 187 645 176 619 171 607 165 595 48LH15 36 48 748 298 287 901 278 882 269 260 252 244 236 228 221 214 208 201 195 189 48LH16 42 48 922 864 844 826 810 792 777 760 745 730 715 702 688 289 928 324 280 909 314 263 331 86400 86400 1059 1035 1012 371 355 343 320 310 969 346 299 271 889 255 247 239 232 225 218 772 245 48LH17 47 48 990 358 948 335 871 294 853 285 837 820 268 804 260 787 397 383 304 276 252
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