Fire-Trol Fire Proof Columns (Square Type OS)


 

UL RATED FIREPROOFED COLUMNS
OD of
Tubing
X106 - 2 Hour X104 - 3 Hour X101 - 4 Hour
Shell Size Wt. † Shell Size Wt. † Shell Size Wt. †
3x3 6 5/8 23 8 5/8 37 8 5/8 37
3½ x 3½ 8 5/8 36 8 5/8 36 10 3/4 60
4x4 8 5/8 34 8 5/8 34 10 3/4 58
5x5 10 3/4 55 10 3/4 55 12 3/4 75
6x6 10 3/4 50 12 3/4 70 12 3/4 70
7x7 12 3/4 65 12 3/4 65 14 79
8x8 14 73 16 118 16 118
10x10 16 100 18 133 18 133

Weight shown in pounds per foot for shell and fireproofing only.
All shell sizes are shown in inches.
Information available upon request for sizes other than shown.
Refer to latest edition of A.I.S.C. steel construction manual for allowable safe loads.


   Concrete Filled Steel Tubing
ALLOWABLE SAFE LOAD IN KIPS**
    Effective Length in Feet - KL with Respect to Radius of Gyration
OD of Pipe Tubing Wall
Thickness
Weight
per Ft.
6 8 10 12 14 16 18 20 22 24 26 28
3x3 1/4 15 62 53 40                  
3½ x 3½  1/4 20 77 68 55 42                
 4x4  1/4 25 98 89 78 65 51 40            
 3/8 28 132 119 102 85 64              
 5x5  1/4 36 137 128 118 107 94 80 64          
 3/8 40 185 172 158 141 124 103 82          
1/2 44 229 212 194 173 150 124            
 6x6  1/4 49 178 169 160 150 138 125 110 95 79      
 3/8 55 241 228 215 200 183 165 145 124 101      
 1/2 60 299 283 267 248 226 204 177 151        
 7x7  1/4 65 221 213 204 194 183 171 158 143 128 111 94  
 3/8 72 297 285 273 259 243 227 208 189 168 146 123  
 1/2 78 369 354 337 320 301 279 255 230 204 176    
 8x8  1/4 82 266 259 251 240 231 218 206 193 178 163 146 128
 3/8 90 357 346 334 321 306 291 272 254 236 215 192 168
 1/2 98 440 427 412 395 377 355 334 311 286 259 231 201
 10x10  1/4 122 364 357 349 340 330 320 308 296 282 267 252 236
 3/8 132 482 471 460 448 435 419 404 388 369 350 331 308
 1/2 142 592 579 566 550 533 515 495 474 453 428 403 375

* Load Tables Based on Fy=46ksi