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HSS LRFD composite load tables - Pirate4x4.Com

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ERW<br />

Nominal Size<br />

Wall Thickness<br />

Weight Per Foot<br />

Design Wall Thickness<br />

0<br />

4<br />

5<br />

6<br />

7<br />

8<br />

9<br />

10<br />

11<br />

12<br />

13<br />

14<br />

15<br />

<strong>LRFD</strong> Composite Columns<br />

Square <strong>HSS</strong><br />

Axial Design Strength in Kips<br />

f’c = 5.0<br />

6 x 6 5 1/2 x 5 1/2<br />

5/8 1/2 3/8 5/16 1/4 3/16 3/8 5/16 1/4 3/16 1/8<br />

42.30 35.24 27.48 23.34 19.02 14.53 24.93 21.21 17.32 13.25 9.01<br />

0.581 0.465 0.349 0.291 0.233 0.174 0.349 0.291 0.233 0.174 0.116<br />

F y = 46 ksi<br />

541 473 398 357 315 271 352 316 278 238 196<br />

522 457 385 346 305 262 338 304 267 228 188<br />

512 449 377 339 299 257 331 297 261 223 184<br />

500 438 369 332 293 251 322 289 254 217 179<br />

486 426 359 323 285 244 312 280 246 210 173<br />

470 413 348 313 276 237 300 270 237 203 167<br />

453 398 336 302 267 229 288 259 227 194 160<br />

434 383 323 290 256 220 275 247 217 185 152<br />

415 366 309 278 245 210 261 235 206 176 144<br />

394 349 294 265 234 200 246 222 195 166 136<br />

373 331 280 252 222 190 231 208 183 156 127<br />

352 312 264 238 210 180 216 195 171 146 119<br />

330 294 249 224 198 169 201 182 159 136 110<br />

Effective length KL in feet<br />

16<br />

17<br />

18<br />

19<br />

20<br />

21<br />

22<br />

23<br />

24<br />

25<br />

26<br />

27<br />

28<br />

29<br />

30<br />

31<br />

32<br />

33<br />

34<br />

35<br />

36<br />

37<br />

38<br />

39<br />

40<br />

308 275 233 210 186 158 186 168 147 125 102<br />

287 256 218 196 173 148 172 155 136 116 94<br />

265 238 202 183 161 137 157 142 125 106 86<br />

245 220 187 169 149 127 144 130 114 97 78<br />

225 203 173 156 138 117 130 118 103 87 70<br />

205 186 159 143 126 107 118 107 93 79 64<br />

187 169 145 131 115 98 107 97 85 72 58<br />

171 155 132 120 106 90 98 89 78 66 53<br />

157 142 122 110 97 82 90 82 72 61 49<br />

145 131 112 101 89 76 83 75 66 56 45<br />

134 121 104 94 83 70 77 70 61 52 42<br />

124 112 96 87 77 65 71 65 57 48 39<br />

115 104 89 81 71 60 66 60 53 45 36<br />

107 97 83 75 66 56 62 56 49 42 33<br />

100 91 78 70 62 53 58 52 46 39 31<br />

94 85 73 66 58 49 54 49 43 36 29<br />

88 80 68 62 55 46 51 46 40 34 27<br />

83 75 64 58 51 44 48 43 38 32 26<br />

78 71 61 55 48 41 45 41 36 30 24<br />

74 67 57 52 46 39 ––– 38 34 29 23<br />

70 63 54 49 43 37 27 22<br />

60 51 46 41 35<br />

––– 48 44 39 33<br />

––– ––– 37 31<br />

–––<br />

––– –––<br />

––– –––<br />

––– –––<br />

PROPERTIES<br />

r m (in.)<br />

φ b M n (kip-ft)<br />

P e (KL) 2 /10 4 (kip-ft 2 )<br />

2.17<br />

80.0<br />

12.1<br />

2.23<br />

68.3<br />

11.0<br />

2.28<br />

54.5<br />

9.39<br />

2.31<br />

46.9<br />

8.49<br />

2.34<br />

38.6<br />

7.50<br />

2.37<br />

29.8<br />

6.36<br />

2.08<br />

45.2<br />

6.98<br />

2.11<br />

39.0<br />

6.33<br />

2.13<br />

32.2<br />

5.53<br />

2.16<br />

24.8<br />

4.69<br />

2.19<br />

17.1<br />

3.77<br />

Note: Heavy horizontal line indicates Kl/r limit of 200.<br />

28

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