RCC Column
A column is a very important component in a structure. It is like the legs on which a structure stands. It is designed to resist axial and lateral forces and transfer them safely to the footings in the ground. Columns support floors in a structure. Slabs and beams transfer the stresses to the columns. So, it is important to design strong columns. basis of classification of columns and different types of reinforcement required for a certain type of column.
A column may be classified based on different criteria such as
1- Based on the shape
- Rectangle
- Square
- Circular
- Polygon
2- Based on the slenderness ratio
The ratio of the effective length of a column to the least radius of gyration of its cross-section is called the slenderness ratio.
- Short RCC column, =< 10
- Long RCC column, > 10
- Short Steel column, =<50
- Intermediate Steel column >50 and <200
- Long Steel column >200
3- Based on the type of loading
- Axially loaded column
- A column subjected to axial load and uniaxial bending
- A column subjected to axial load and biaxial bending
4- Based on the pattern of lateral reinforcement
- Tied RCC columns
- Spiral RCC columns
