Question

Explain the reason behind keeping the length three times of lateral dimension.​

Answer 1

The reason behind keeping the length three times of lateral dimension:

In case of civil construction, the length of the vertical member is kept at least three times the lateral dimension. This vertical member is called a column.  For a column, the vertical member has two ends, the upper end holds the beam, and the lower end is called the foundation.

If the size is less than three times then the system becomes unstable since the centre of gravity of the object lies high above. Due to instability the beam, column system may fall down. Hence, According to RCC, it is mandatory to keep the length three times the lateral dimension.