Section designation | Compression resistance Nb,y,Rd, Nb,z,Rd, Nb,T,Rd (kN) for buckling lengths (m) | ||||||||||||||||||
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Axis | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | ||
UBP 356 x 368 x 174 | Nb,y,Rd | 7,640 | 7,640 | 7,640 | 7,610 | 7,490 | 7,370 | 7,250 | 7,000 | 6,720 | 6,420 | 6,070 | 5,700 | 5,300 | 4,880 | 4,460 | 4,070 | 3,700 | |
Nb,z,Rd | 7,640 | 7,600 | 7,320 | 7,040 | 6,760 | 6,460 | 6,160 | 5,510 | 4,830 | 4,170 | 3,580 | 3,060 | 2,630 | 2,270 | 1,980 | 1,730 | 1,530 | ||
Nb,T,Rd | 7,640 | 7,580 | 7,330 | 7,090 | 6,860 | 6,640 | 6,440 | 6,090 | 5,790 | 5,550 | 5,360 | 5,200 | 5,080 | 4,980 | 4,890 | 4,820 | 4,770 | ||
UBP 356 x 368 x 152 | Nb,y,Rd | 6,680 | 6,680 | 6,680 | 6,650 | 6,550 | 6,440 | 6,340 | 6,110 | 5,870 | 5,600 | 5,290 | 4,960 | 4,610 | 4,240 | 3,870 | 3,520 | 3,200 | |
Nb,z,Rd | 6,680 | 6,640 | 6,390 | 6,150 | 5,900 | 5,640 | 5,360 | 4,790 | 4,190 | 3,620 | 3,100 | 2,650 | 2,270 | 1,960 | 1,700 | 1,490 | 1,320 | ||
Nb,T,Rd | 6,680 | 6,620 | 6,390 | 6,170 | 5,960 | 5,760 | 5,560 | 5,210 | 4,910 | 4,660 | 4,450 | 4,280 | 4,140 | 4,030 | 3,940 | 3,860 | 3,800 | ||
UBP 356 x 368 x 133 | Nb,y,Rd | 6,010 | 6,010 | 6,010 | 5,970 | 5,880 | 5,780 | 5,690 | 5,480 | 5,250 | 5,000 | 4,720 | 4,410 | 4,080 | 3,740 | 3,410 | 3,090 | 2,800 | |
Nb,z,Rd | 6,010 | 5,960 | 5,740 | 5,510 | 5,280 | 5,040 | 4,790 | 4,250 | 3,700 | 3,180 | 2,710 | 2,310 | 1,980 | 1,710 | 1,480 | 1,300 | 1,140 | ||
Nb,T,Rd | 6,010 | 5,940 | 5,730 | 5,520 | 5,310 | 5,120 | 4,920 | 4,560 | 4,250 | 3,980 | 3,750 | 3,560 | 3,420 | 3,290 | 3,190 | 3,110 | 3,040 | ||
UBP 356 x 368 x 109 | * | Nb,y,Rd | 4,700 | 4,700 | 4,700 | 4,670 | 4,600 | 4,530 | 4,450 | 4,300 | 4,120 | 3,930 | 3,710 | 3,480 | 3,230 | 2,970 | 2,710 | 2,460 | 2,240 |
Nb,z,Rd | 4,700 | 4,660 | 4,490 | 4,320 | 4,140 | 3,950 | 3,760 | 3,350 | 2,930 | 2,520 | 2,160 | 1,840 | 1,580 | 1,360 | 1,180 | 1,040 | 913 | ||
Nb,T,Rd | 4,700 | 4,650 | 4,480 | 4,310 | 4,150 | 3,980 | 3,820 | 3,520 | 3,230 | 2,980 | 2,770 | 2,590 | 2,440 | 2,320 | 2,220 | 2,140 | 2,080 | ||
UBP 305 x 305 x 223 | Nb,y,Rd | 9,800 | 9,800 | 9,800 | 9,670 | 9,500 | 9,330 | 9,160 | 8,780 | 8,350 | 7,880 | 7,350 | 6,780 | 6,180 | 5,590 | 5,030 | 4,520 | 4,060 | |
Nb,z,Rd | 9,800 | 9,570 | 9,160 | 8,740 | 8,300 | 7,850 | 7,370 | 6,370 | 5,380 | 4,500 | 3,760 | 3,160 | 2,680 | 2,290 | 1,980 | 1,720 | 1,510 | ||
Nb,T,Rd | 9,800 | 9,650 | 9,360 | 9,110 | 8,920 | 8,750 | 8,620 | 8,430 | 8,300 | 8,210 | 8,150 | 8,100 | 8,070 | 8,040 | 8,020 | 8,000 | 7,990 | ||
UBP 305 x 305 x 186 | Nb,y,Rd | 8,170 | 8,170 | 8,170 | 8,060 | 7,910 | 7,770 | 7,620 | 7,290 | 6,930 | 6,530 | 6,070 | 5,580 | 5,080 | 4,580 | 4,110 | 3,690 | 3,310 | |
Nb,z,Rd | 8,170 | 7,960 | 7,620 | 7,260 | 6,890 | 6,500 | 6,080 | 5,230 | 4,410 | 3,670 | 3,060 | 2,560 | 2,170 | 1,850 | 1,600 | 1,390 | 1,220 | ||
Nb,T,Rd | 8,170 | 8,010 | 7,740 | 7,510 | 7,310 | 7,150 | 7,010 | 6,790 | 6,640 | 6,530 | 6,450 | 6,400 | 6,350 | 6,320 | 6,290 | 6,270 | 6,250 | ||
UBP 305 x 305 x 149 | Nb,y,Rd | 6,550 | 6,550 | 6,550 | 6,450 | 6,330 | 6,210 | 6,090 | 5,820 | 5,530 | 5,190 | 4,820 | 4,420 | 4,000 | 3,600 | 3,230 | 2,890 | 2,590 | |
Nb,z,Rd | 6,550 | 6,370 | 6,080 | 5,790 | 5,480 | 5,160 | 4,820 | 4,130 | 3,460 | 2,870 | 2,380 | 1,990 | 1,680 | 1,440 | 1,240 | 1,080 | 945 | ||
Nb,T,Rd | 6,550 | 6,390 | 6,150 | 5,940 | 5,750 | 5,580 | 5,430 | 5,190 | 5,010 | 4,880 | 4,780 | 4,700 | 4,640 | 4,600 | 4,560 | 4,530 | 4,510 | ||
UBP 305 x 305 x 126 | Nb,y,Rd | 5,540 | 5,540 | 5,540 | 5,450 | 5,350 | 5,250 | 5,140 | 4,910 | 4,660 | 4,370 | 4,050 | 3,700 | 3,350 | 3,010 | 2,690 | 2,410 | 2,160 | |
Nb,z,Rd | 5,540 | 5,380 | 5,130 | 4,880 | 4,620 | 4,340 | 4,050 | 3,460 | 2,880 | 2,390 | 1,980 | 1,660 | 1,400 | 1,190 | 1,030 | 893 | 783 | ||
Nb,T,Rd | 5,540 | 5,390 | 5,180 | 4,980 | 4,800 | 4,630 | 4,480 | 4,230 | 4,030 | 3,880 | 3,760 | 3,670 | 3,600 | 3,550 | 3,500 | 3,470 | 3,440 | ||
UBP 305 x 305 x 110 | Nb,y,Rd | 4,970 | 4,970 | 4,970 | 4,880 | 4,790 | 4,700 | 4,600 | 4,390 | 4,150 | 3,880 | 3,580 | 3,260 | 2,940 | 2,630 | 2,350 | 2,100 | 1,870 | |
Nb,z,Rd | 4,970 | 4,810 | 4,590 | 4,350 | 4,110 | 3,860 | 3,590 | 3,040 | 2,520 | 2,080 | 1,720 | 1,430 | 1,210 | 1,030 | 884 | 768 | 673 | ||
Nb,T,Rd | 4,970 | 4,820 | 4,620 | 4,420 | 4,240 | 4,070 | 3,920 | 3,640 | 3,430 | 3,260 | 3,120 | 3,020 | 2,940 | 2,880 | 2,830 | 2,780 | 2,750 | ||
UBP 305 x 305 x 95 | Nb,y,Rd | 4,290 | 4,290 | 4,290 | 4,210 | 4,130 | 4,050 | 3,960 | 3,780 | 3,570 | 3,340 | 3,070 | 2,800 | 2,520 | 2,250 | 2,000 | 1,790 | 1,600 | |
Nb,z,Rd | 4,290 | 4,150 | 3,950 | 3,750 | 3,540 | 3,310 | 3,080 | 2,600 | 2,150 | 1,770 | 1,460 | 1,220 | 1,020 | 872 | 751 | 652 | 571 | ||
Nb,T,Rd | 4,290 | 4,150 | 3,970 | 3,790 | 3,620 | 3,460 | 3,310 | 3,040 | 2,820 | 2,640 | 2,500 | 2,390 | 2,300 | 2,230 | 2,180 | 2,130 | 2,100 | ||
UBP 305 x 305 x 88 | Nb,y,Rd | 3,980 | 3,980 | 3,970 | 3,900 | 3,830 | 3,750 | 3,670 | 3,500 | 3,310 | 3,090 | 2,840 | 2,580 | 2,320 | 2,080 | 1,850 | 1,650 | 1,470 | |
Nb,z,Rd | 3,980 | 3,840 | 3,660 | 3,470 | 3,270 | 3,060 | 2,840 | 2,400 | 1,980 | 1,630 | 1,340 | 1,120 | 941 | 801 | 689 | 599 | 525 | ||
Nb,T,Rd | 3,980 | 3,840 | 3,670 | 3,510 | 3,340 | 3,190 | 3,040 | 2,770 | 2,540 | 2,360 | 2,220 | 2,110 | 2,020 | 1,950 | 1,900 | 1,850 | 1,820 | ||
UBP 305 x 305 x 79 | * | Nb,y,Rd | 3,500 | 3,500 | 3,490 | 3,430 | 3,370 | 3,300 | 3,230 | 3,080 | 2,910 | 2,720 | 2,510 | 2,290 | 2,060 | 1,840 | 1,640 | 1,460 | 1,310 |
Nb,z,Rd | 3,500 | 3,380 | 3,220 | 3,050 | 2,880 | 2,700 | 2,510 | 2,120 | 1,750 | 1,440 | 1,190 | 992 | 835 | 711 | 612 | 532 | 466 | ||
Nb,T,Rd | 3,500 | 3,380 | 3,230 | 3,080 | 2,930 | 2,790 | 2,650 | 2,390 | 2,180 | 2,000 | 1,860 | 1,750 | 1,660 | 1,600 | 1,540 | 1,500 | 1,460 | ||
UBP 254 x 254 x 85 | Nb,y,Rd | 3,850 | 3,850 | 3,790 | 3,700 | 3,610 | 3,520 | 3,420 | 3,190 | 2,930 | 2,640 | 2,340 | 2,050 | 1,780 | 1,550 | 1,350 | 1,190 | 1,050 | |
Nb,z,Rd | 3,830 | 3,620 | 3,410 | 3,190 | 2,960 | 2,710 | 2,450 | 1,970 | 1,560 | 1,250 | 1,010 | 833 | 695 | 588 | 504 | 436 | 381 | ||
Nb,T,Rd | 3,830 | 3,640 | 3,470 | 3,310 | 3,170 | 3,050 | 2,940 | 2,760 | 2,640 | 2,550 | 2,480 | 2,430 | 2,400 | 2,370 | 2,340 | 2,320 | 2,310 | ||
UBP 254 x 254 x 71 | Nb,y,Rd | 3,210 | 3,210 | 3,160 | 3,080 | 3,010 | 2,930 | 2,840 | 2,650 | 2,430 | 2,190 | 1,930 | 1,690 | 1,470 | 1,280 | 1,110 | 977 | 862 | |
Nb,z,Rd | 3,190 | 3,020 | 2,840 | 2,650 | 2,450 | 2,240 | 2,030 | 1,620 | 1,280 | 1,020 | 829 | 682 | 569 | 481 | 411 | 356 | 311 | ||
Nb,T,Rd | 3,190 | 3,020 | 2,870 | 2,720 | 2,590 | 2,460 | 2,350 | 2,170 | 2,030 | 1,930 | 1,860 | 1,800 | 1,760 | 1,720 | 1,700 | 1,670 | 1,660 | ||
UBP 254 x 254 x 63 | Nb,y,Rd | 2,850 | 2,850 | 2,800 | 2,730 | 2,670 | 2,600 | 2,520 | 2,350 | 2,150 | 1,930 | 1,710 | 1,490 | 1,290 | 1,120 | 980 | 860 | 758 | |
Nb,z,Rd | 2,830 | 2,670 | 2,510 | 2,350 | 2,170 | 1,980 | 1,790 | 1,430 | 1,130 | 900 | 728 | 598 | 499 | 422 | 361 | 312 | 273 | ||
Nb,T,Rd | 2,820 | 2,680 | 2,530 | 2,400 | 2,270 | 2,150 | 2,040 | 1,850 | 1,710 | 1,600 | 1,520 | 1,460 | 1,420 | 1,380 | 1,350 | 1,330 | 1,310 | ||
UBP 203 x 203 x 54 | Nb,y,Rd | 2,440 | 2,410 | 2,350 | 2,280 | 2,200 | 2,120 | 2,030 | 1,820 | 1,580 | 1,350 | 1,130 | 954 | 808 | 689 | 593 | 515 | 451 | |
Nb,z,Rd | 2,360 | 2,200 | 2,020 | 1,830 | 1,630 | 1,430 | 1,250 | 934 | 709 | 551 | 439 | 357 | 295 | 248 | 211 | 182 | 159 | ||
Nb,T,Rd | 2,360 | 2,220 | 2,100 | 1,990 | 1,890 | 1,810 | 1,750 | 1,650 | 1,580 | 1,540 | 1,510 | 1,480 | 1,470 | 1,450 | 1,440 | 1,440 | 1,430 | ||
UBP 203 x 203 x 45 | Nb,y,Rd | 2,030 | 2,010 | 1,950 | 1,890 | 1,830 | 1,760 | 1,680 | 1,500 | 1,310 | 1,110 | 930 | 782 | 661 | 564 | 485 | 421 | 369 | |
Nb,z,Rd | 1,960 | 1,820 | 1,680 | 1,520 | 1,350 | 1,180 | 1,020 | 764 | 579 | 450 | 358 | 291 | 240 | 202 | 172 | 148 | 129 | ||
Nb,T,Rd | 1,960 | 1,840 | 1,720 | 1,620 | 1,520 | 1,440 | 1,370 | 1,260 | 1,190 | 1,140 | 1,100 | 1,080 | 1,060 | 1,040 | 1,030 | 1,020 | 1,010 |
∗ The section may be Class 4 under axial compression
Values in italic type indicate that the section is a Class 4 section in pure compression and allowance has been made in calculating the resistance
For values of the compression cross-sectional resistance, Nc,Rd, see values of Npl,Rd in tables for axial force and bending