The thickness of the gusset plate for column base should not be less than

Concept:

Column base:

• Column base transmits the column load to the concrete or masonry foundation blocks.
• The column base spreads the load on a wider area so that the intensity of bearing pressure on the foundation block is within the bearing strength.

There are two types of column bases commonly used in practice:

• Slab base
• Gusseted base

Slab Base:

• These are used in columns carrying small loads.
• In this type, the column is directly connected to the base plate by welding or through cleat angles.
• The load is transferred to the base plate through bearing.

Gusseted Base:

• For columns carrying heavy loads, gusseted bases are used. In a gusseted base, the column is connected to the base plate through gussets.
• The load is transferred to the base partly through bearing and partly through the gusset.
• The thickness of the gusset plate in any case should not be less than 12mm.