Question 15.8: Capacity of a Riveted Connection The standard AISC connectio...
Capacity of a Riveted Connection
The standard AISC connection for the W310 × 52 beam consists of two 102 × 102 × 6.4 mm angles, each 215 mm long, 22 mm rivets spaced 75 mm apart are used in 24 mm holes (Figure 15.19). Calculate the maximum load that the connection can carry.
Design Decisions: The allowable stresses are 100 MPa in shear and 335 MPa in bearing of rivets. Tensile failure cannot occur in this connection; only shearing and bearing capacities need to be investigated.
The web thickness of the beam is t_{w} = 7.6 mm (from Table A.6), and the cross-sectional area of one rivet is A_r=\pi(22)^2 / 4=380 mm ^2 .
Bearing on the web of the beam:
P_b=3(7.6)(22)(335)=168 kN (governs)
Shear of six rivets:
P_b=6(380)(100)=228 kN
Bearing of six rivets on angles:
P_b=6(22)(6.4)(335)=283 kN
Comment: The capacity of this connection, the smallest of the forces obtained in the foregoing, is 168 kN.