Steel Buildings in Europe

Title Worked Example: Bending moment resistance 2 of 2 8 - 17 M cr = z 2 t 2 z w 2 z 2 1 EI L GI I I L EI C    = 2 4 2 3800 10 2142 210000 1, 77      4 2 4 2 4 9 10 2142 210000 89,3 10 81000 3800 10 2142 10 1249            M cr = 1556  10 6 Nmm Appendix C of Single-Storey Steel Building, Part 4 LT   cr y y M W f = 6 3 10 1556 355 10 2194    = 0,708 §6.3.2.2 For hot rolled sections  LT =     2 LT LT,0 LT LT 0,5 1         LT,0   0,4 and   0,75 §6.3.2.3 2,5  b h  Curve c for hot rolled I sections   LT  0,49 Table 6.3 Table 6.5  LT =     2 0,5 1 0, 49 0, 708 0, 4 0, 75 0, 708     = 0,763  LT = 2 LT 2 LT LT 1        LT = 2 2 0, 75 0, 708 0, 763 0, 763 1    = 0,822 §6.3.2.3 2 LT 1  = 2 0, 708 1 = 1,99 Therefore  LT = 0,822 f = 1 – 0,5 (1 - k c ) [1 – 2,0 ( 0,8) ] 2 LT   k c =  1,33 0,33 1  = 1,33 0,33 0 1   = 0,75 f = 1 – 0,5 (1 – 0,75) [1 – 2,0 (0,708 – 0,8) 2 ] = 0,877 χ LT mod = 0,937 0,877 0,822 LT   f  M b,Rd = M1 pl,y y LT   f W = 6 3 10 1,0 355 10 2194 0,937      = 730 kNm