- Plinth beam is a beam in a framed structure provided at ground level.
- It also known as a tie beam because it binds the column.
- So it reduces the length of column and slenderness ratio.
- It may not carry any slab load and designed to carry its own self weight and masonry load above the plinth beam.
- The plinth beam needs to be strong, but need not to be made up of reinforced cement concrete (RCC) all the time.
- It provides additional stability in regard to settlements of the building and earthquake damages.
Why Plinth beams are used?
- To avoid differential settlement.
- To maintain the plinth plane proper.
- To connect all the columns if depth of foundation is high.
- To avoid difficulties in construction of walls.
- A ground beam is constructed at foundation level.
- It support the wall or joist, if the soil sub grade have poor bearing capacity.
- It is mainly Reinforced Cement Concrete Beam.
Why Ground Beam is Provided?
- To prevent settlement of wall.
- It indirectly increase the bearing capacity.