Steel Buildings in Europe

Title Appendix B Worked Example: Design of a truss node with gusset 21 of 44 5 - 100 Table B.6 Connection N3 – Gusset component – Vertical component of the design bearing resistances in kN Bolt b 1 b 2 b 3 b 4 b 5 b 6 e 1 90 e 2 141 99 57 p 1 65 65 1) 65 1) 65 1) 65 1) p 2 2) 68,24 68,24 68,24 68,24 68,24 68,24 b,inner  b,inner  b,inner  b,inner  b,inner  b,end  b  0,58 0,58 0,58 0,58 0,58 1,00 1,inner k 1,inner k 1,inner k 1,min k 3) 1,min k 3) 1,min k 3) 1 k 1,97 1,97 1,97 1,97 1,97 1,97 b bi v Rd F , , , 169,16 169,16 169,16 169,16 169,16 289,98 1)   L min 65; 2) the distance L have been retained 3)   ; 1,end inner 1, min 1,min k k k  Design slip resistance F s,Rd With: A s = 353 mm 2 tensile stress area of the bolt ub s p,C 0, 7 f A F  = 247,1 kN pretension force n = 2 number of the friction surfaces relatively to the gusset EN 1993-1-8 3.9 EN 1993-1-8 3.9.1 (2) And by considering: Bolts in normal holes  k s = 1,0 Class of friction surfaces = Class A   = 0,5 EN 1993-1-8 Table 3.6 Table 3.7 Then: p,C M3 s S,Rd F k n F    = 197,68 kN EN 1993-1-8 3.9.1 (1) Checking bolts – Individual checking The criteria to satisfy are: In relation to the design slip resistance S,Rd V,bi,Ed F F  EN 1993-1-8 Table 3.2 In relation to the design bearing resistance b,bi,h,Rd V,bi,h,Ed F F  b,bi,v,Rd V,bi,v,Ed F F  EN 1993-1-8 Table 3.2 and Table 3.4 3) Note: an additional check based on an interactive expression is proposed: 1 2 b,bi,v,Rd V,bi,v,Ed 2 b,bi,h,Rd V,bi,h,Ed               F F F F