Steel Buildings in Europe

Title Appendix B Worked Example: Design of a truss node with gusset 22 of 44 5 - 101 Each bolt has to be verified. The highest values of resistance do not necessary correspond with the bolt the most loaded. Table B.7 summarizes only the checks for the bolt b 1 . Table B.7 Connection N3 – Gusset component – Checking bolt b 1 Design values Resistance values V,b1,Ed F 164,03 197,68 S,Rd F b1,h,Ed V, F 20,21 165,19 b1,h,Rd b, F b1,v,Ed V, F 162,78 169,16 b1,v,Rd b, F 2 b1,v,Rd b, b1,v,Ed V, 2 b1,h,Rd b, b1,h,Ed V,              F F F F 0,94 1 Checking bolts – Group of fasteners From the Eurocode, the design resistance of a group of fasteners may be taken as:   bi n F F 1 b,bi,Rd gr,b,Rd if for each bolt b i we have b,bi,Rd v,Rd F F  else   b,bi,Rd bi r,b,Rd min F n F g   EN 1993-1-8 3.7 Where v Rd F , , the shear resistance per shear plane, is taken as: M2 v ub v,Rd   f A F  By considering that the shear plane passes through the threaded portion of the bolt in normal holes:  v = 0,5 A = A s = 353 mm 2 (tensile stress area) Then: v,Rd F = 141,12 kN Finally for the design resistance we obtain: r,b,h,Rd g F = 991,17 kN for the horizontal components r,b,v,Rd g F = 1014,94 kN for the vertical components And we verify that: ) 402, 21 sin( 3 3 , ,   g Ed N < 991,17 kN r,b,h,Rd  g F ) 457 ,82 cos( 3 3 , ,   g Ed N < 1014,94kN r,b,h,Rd  g F