What is Stub Column?
A stub column is a type of column whose length is short and baseless which means do not have a foundation and footing as its rests on a beam or slab. It acts as a point load on the beam.
A stub column does not fail by buckling because of its short length and It is constructed between one floor only.
Definition of stub column:
Stub column is defined as the short compression member which do not have a foundation or footing and which directly rests on a slab or column to transfer the load on the primary beam. It is constructed on the beam to carry the extra load that is act over it.
Also Read: Plinth Beam: Its Purpose, Importance & Protection in Building
What is the Purpose of the Stub Column?
The purpose of stub column is providing to increase stiffness( the rigidity of a structural element that is able to resist deformation under the action of an applied force). A stub column is used to transfer load one from another beam.
Advantages of Stub Column
- A stub column is used to transfer load from one beam to another beam.
- The stub column does not fail under buckling.
- It increases the stiffness of the building.
- It is used to carry the extra load of the extra construction.
- Minimize the cost or economical
Disadvantages of Stub Column
- It is only constructed only on one floor
- The length is short
When Stub Column Used?
The stub column is used when the length of the beam or slab is increased due to any case then it is constructed over the beam. It is also constructed as an interior or architectural point of view and used to increase the stability of the building.
Also Read:Â Guide on Different Types of Beam and its Classification
Difference between Stub Column and Floating Column
| Stub Column | Floating Column |
| stub column is not directly connected with the footing and is constructed between only one floor | The floating column is not directly connected with the footing and foundation and constructed between more than two floors |
| The length of the stub column is short. | The floating column is long |
| Stub column is constructed over the beam and It acts as a point load | It starts from one floor and ends with the parapet wall of the building. |
Test For Stub Column
A test is also performed which is called the stub column test to find out the strength of the column.
Video on Stub Column
Also Read: A Complete Guide on Tie Beam
A stub column is a short structural column that doesn’t extend to the foundation, typically transferring loads to a beam. It’s often used to support mezzanine floors or cantilever structures. Its advantages include efficient load distribution and flexibility in design. However, it may complicate structural analysis. In contrast, floating columns rest on beams, not the foundation, making them useful but potentially risky under seismic conditions.
A stub column is a short vertical support structure that carries loads from above while allowing for flexibility in design. Its advantages include cost-effectiveness and space efficiency, while disadvantages may involve limited load capacity. Unlike floating columns, stub columns are fixed, providing stability in structures while optimizing space utilization.