Steel Buildings in Europe

Title Appendix B Worked Example: Design of a truss node with gusset 13 of 44 5 - 92 Class of section 12, 20 10 15     h t   2 10 11,5 9,36      t b h  class 4 7 ,93 10 / 10 /1 8,14        c t  class 2  Class of angle = class 4 EN 1993-1-1 Table 5.2 Sheet 3 of 3 Table 5.2 Sheet 2 of 3 Combination M + N Criterion to satisfy: M0 y 3,a,eff 3,a,Ed 3,a,eff 3,a,Ed x,Ed   f W M A N    with: A 3,a,eff effective area of cross-section eff,leg2 3,a, eff,leg1 3,a, 3,a,eff A A A   where A 3,a,eff,leg1 effective area relative to the “free” leg A 3,a,eff,leg2 effective area relative to the “connected” leg EN 1993-1-1 6.2.9.3 determination of the effective area of cross-section A 3,a,eff,leg1 1 1     = 1,0 buckling factor k  = 0,43 p  = 0,660   = 1 no reduction EN 1993-1-5 Table 4.2 EN 1993-1-5 4.4 (2) determination of the effective area of cross-section A 3,a,eff,leg2 2 1     = -0,120 buckling factor k  = 2,55 p  = 0,271   = 1 no reduction EN 1993-1-5 Table 4.2 EN 1993-1-5 4.4 (2) Verification 3,a 3,a,eff A A  (no reduction) 355 ; ) 202,18 max( M0 y 1 2 x,Ed         f N/mm 2  criterion satisfied Resistance of net cross-section From 6.2.5 (5) of EN 1993-1-1, the fastener holes in tension zone need not be allowed for, provided that the following limit is satisfied for the complete tension zone: M0 t y M2 u t,net 0,9   f A f A  EN 1993-1-1 6.2.5 (5)