There is nothing as such a fixed measurement between two columns as it depends upon several factors. Some of the factors that decide the distance between two columns are :
- Total Load (DL+LL) acting over the column
- Type of Structural Design
- Size of the Column
- Size of the Beam resting over the Column
- Whether the Column comes in a seismic zone or not
- Type of Footing & SBC of Soil
- Number of storeys in the structure
Let’s start by discussing the normal specifications for column size and spacing in a residential building with a single storey.
1. The minimum required size of the column should be 9″x9″ (230mm x 230mm).
2. When you provide a 9″x9″ column to the building, the distance between the two columns should be less than and equal to 4m or 13′.
3. The standard or most common size of the column for the single storeyed residential building is 9″x12″ (230mm x 300mm).
4. When you provide a 9″x12″ column to the building, the distance between the two columns should be less than and equal to 5m or 16′.
5. In any condition, the dia. of reinforcement should not be less than 12mm and 4 nos.
6. The dia. of lateral ties should be 8mm as shown in the below drawing.
7. The minimum size of the beam should be 9″x12″ for the safe transfer of the loads.
