Subcode: LRFD
Type of connection: Bolted splice connection
Unit system: Metric
Designed acc. to: AISC 360-16
Investigated: High-strength bolts in slip-critical connection
Plate material: A709, Gr. 50
Bolts: 5/8'' A325
Geometry
Applied load
Bolted splice slip-critical connection is loaded by tension for the slip resistance to be utilized at 100 %.
Procedure
Concentrically loaded splice bolted connection is designed so that the slip resistance of high strength bolts (AISC 360-16 – J3.8) is exhausted first.
Manual calculation
Bolt strength
The design slip strength of the connection is 9 ∙ 58.1 = 522.9 kN.
Strength of plates in tension
\[ \phi R_n = \phi F_y A_g = 0.9 \cdot 344.7 \cdot 2000 = 620.46 \, \textrm{kN} \]
Check in IDEA StatiCa Connection
The bolts are, beside the shear force, loaded also by the tensile force due to the deformation of plates. This decreases the slip resistance of bolts according to AISC 360-16 – J3.9. The resistance of connection in IDEA StatiCa Connection is 497 kN.