Table of Contents
Introduction of Stub Column?
A stub column is a type of support that is very short in length and not directly connected to the foundation. Therefore, it has no base and relies on beams or slabs to transfer loads. A stub brace acts as a point load for the beam on which it rests.
In the below figure, I have shown stub column.
Due to the very low stump support height, buckling fractures are rarely seen. It is constructed between different floors and foundation to transmit loads, improve building stiffness and create symmetrical load distribution. This is a redundant compression element.
Stub column placed on beams, not on foundations. This can cause additional shear in the beam, which is unacceptable. Therefore, it is necessary to create beams to expand the cross section. This can make stub columns an expensive option.
Why Stub Column is Provided?
Stub support was introduced to bring symmetry to geometry and load balancing. Used to enhance the aesthetics of buildings.
Acts as an intermediate support between large spaces. Deflection increases as beam span increases. This can be mitigated by introducing stub columns.
Stub supports are introduced to accommodate unexpected additional loads on the building during the construction process. It is used to increase the rigidity of the building. Butt braces help safely move loads from one carrier to another.
Applications and Uses of Stub Columns
- For belt foundations, stub columns are provided to transfer the load from the beam to the foundation.
- Increases the rigidity of the building.
- Creates symmetry in building geometry and load distribution. For example, when the span of a room is large or the geometry of different floors is not symmetrical.
- Can be used to enhance the aesthetic appearance of buildings.
- For long span beams, stub braces can be used to reduce beam deflection.
- Helps in the safe and reliable transfer of packages from one carrier to another.
Pros
- Stubs are used to transfer loads from one beam to another. The
- Stub brace does not fail when buckling.
- Increases the rigidity of the building.
- Used to carry extra loads for extra structures.
- Minimal cost or economical
Cons
- Only built on one floor
- Short length