Steel Buildings in Europe

Part 5: Joint Design 5 – 22 3.2 Checks for vertical shear 3.2.1 Bolt group resistance 3.2.1.1 Shear resistance of bolts V Ed p p p 1 1 1 1 V Ed V Ed 2 1 1 1 p z z z p p p n 2 2 2 1 1 Centre of bolt group 2 Assumed line of shear transfer Basic requirement: V Ed ≤ V Rd V Rd = 2 b 2 b v,Rd b ) ) ( (1 n n n F     [Reference 3] F v,Rd is the shear resistance of one bolt F v,Rd = M2 v ub   f A where: A is the tensile stress area of the bolt, A s α v = 0,6 for 4.6 and 8.8 bolts = 0,5 for 10.9 bolts  M2 is the partial factor for resistance of bolts For a single vertical line of bolts ( n 2 = 1) α = 0 and β =   1 1 1 1 6 n n p z  For a double vertical line of bolts ( n 2 = 2) α = I zp 2 2 and β =   1 2 1 1  n I zp I =   2 1 2 1 1 2 2 1 1 6 1 2 p n n p n   z is the transverse distance from the face of the supporting element to the centre of the bolt group