Out of the types of connections, riveted connections were predominant till recently. However, due to the hardship in execution and non-availability of skilled man power, only bolted and welded connections are used commonly nowadays. Riveted connections, which have now become obsolete, were predominantly used in railway bridges.
Types of riveted joints
A riveted joint may be classified according to
- Arrangement of rivets and plates
- Mode of transfer of load
Arrangement of rivets and plates
Based on the arrangement of rivets and plates it is classified as
- Single riveted lap point
- Double riveted lap point
- Single riveted single cover butt joint
- Single riveted double cover butt joint
- Double rivet double cover butt joint
Mode of transfer of load
Based on the mode of transfer, the rivets may be classified as rivets subjected to single shear, rivets subjected to double shear and rivets subjected to tension.
If the load is transmitted through shear between the plate and the shank of the rivet, it is said to be in shear.
When the load is transmitted by shear in only one plane, it is called as single shear. If the loading of the river is such as to have shear in two planes, it is called as double shear.
Modes of failure of riveted joint
A riveted joint may fail on one of the following ways
- Tension failure in the plate.
- Shearing failure across one or more planes of the rivets.
- Bearing failure between the plates and the rivets.
- Plate shear or shear out failure in the plate.