The classifications of bolted connections are made based on resultant force transferred, type of force and force mechanism.
Based on resultant force transferred:
Concentric connections: When a load of structural member passes through the CG of the section then this type of connection are made.
Eccentric connections: Whenever the resultant force is acting away from the CG of the connections.
Moment resisting connections: Whenever the connections are subjected to moments.
Based on the type of force:
The connections are classified as shear connections when the transfer of load occurred through shear. Example: lap joint, butt joint
Tension connection: Whenever the transfer of load occurs through tension on the bolts.
Combined tension shear connections: whenever the bracket connection is used to connect the inclined member to the column of the structure.
Based on force mechanism:
- Bearing type connections: To transfer the force bolts bear against the hole
- Friction type connections: Due to the bolts’ tension, the force is transferred through friction between the plates.
