# 12-Difference Between long Column and Short Column

## Difference Between long Column and Short Column

The column is the most important component of RCC structure. Various types of columns are used in the structure. According to slenderness ratio columns are divided into two types:

• Short Column
• Long or slender Column

## Short column

A short column is the one whose ratio of effective length to its least lateral dimension is less than or equal to 12. Then it is termed as a short column.

( lef / b ) ≤ 12

lef = effective length

b = least lateral dimension of column

Also, read – Difference Between Lap length and Development Length

## Long or Slender Column

A long or slender column is the one whose ratio of effective length to its least lateral dimension is not less than 12. Then it is termed as a long column.

( lef / b )  > 12

In long columns, the permissible values of stresses in concrete and steel, used for short columns should be multiplied by a coefficient Cr given by the following formula.

C= 1.25 – lef /48b

Cr = reduction coefficient

lef = effective length

b = least lateral dimension of the column

When in a column, having helical reinforcement, the permissible load is based on the core area, the least lateral dimension should be taken as the diameter of the core.

## Difference Between Short Columns and Long Columns

I hope now you understood the difference between long column and short column. If you find this article helpful please don’t forget to share it.

Finally thanks! for reading the article.

What is Lap Length?

What is Development Length?

Bar Bending Schedule (BBB) – Importance, Advantages, Preparation.

How to Calculate Cutting Length of Stirrups for Beam and Column?

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