Difference Between Short Column and Long Column

Difference Between Short Column and Long Column

• There are many differences between the Short column and the Long column, some of which are given below.
• A short column is a column whose ratio of its actual or effective length and its minimum lateral dimension is less than or equal to 12. A column with such features is called a short column.
• The formula by which a short column can be calculated is ( l_ef / b ) <= 12 . Where l_ef = Effective Length of a column, b = Least lateral dimension of a column.
• If the average working length and minimum lateral size are less than or equal to 12, then it is called a short column.
• In the case of the short column, the effective length to a minimum radius of gyration ratio is less than or equal to 40.
• In the case of the short column, the buckling tendency is very low as compared to the long columns.

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• In the case of the short column, the crushing tendency is very high as compared to the long columns.
• In the case of a short column, the load-carrying capacity is higher as compared to the long columns of the same cross-sectional area.
• In the case of a short column, the failure is due to their crushing.
• In the case of a short column, the radius of gyration is more as compared to the long columns.
• The short column has the capacity to carry a large load due to its low height as compared to the long columns.
• The short columns are under great pressure and compressive stress.
• In the case of the short column, the slenderness ratio is less than 45.
• In the case of the short column, the columns have a larger lateral dimension as compared to their height.
• The short column is much stronger than the longer column and is highly recommended.
• Long or thin is the column whose ratio of its actual or effective length and its minimum lateral dimension is not less than 12. A column with such features is called the long column.
• In long columns, the allowable values of pressure or stress in concrete and steel, which are used for small columns, should be multiplied by the coefficient C_r given by the following formula.
• C_r = 1.25 – l_ef / 48 b , where C_r = Reduction Coefficient, Where l_ef = Effective Length of a column, b = Least lateral dimension of a column.
• If the average working length and minimum lateral size are greater than 12, then it is called a long column.
• In the case of the long column, the effective length to a minimum radius of gyration ratio is greater than 40.
• In the case of the long column, the Long and cylindrical pillars are easy to buckle down as compared to the short columns.
• In the case of the long column, the crushing tendency is very low as compared to the short columns.

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• The load-bearing capacity of a long column is less than that of a short column of a similar cross-sectional area.
• In a civil structure, all long columns fail due to their buckling.
• In the case of the long column, the radius of gyration is less as compared to the short columns.
• The long column has the capacity to carry less load due to its high height as compared to the short columns.
• Long columns are subject to buckling pressure or stress.
• In the case of the long column, the slenderness ratio is more than 45.
• In the case of the long column, the columns have a smaller lateral dimension as compared to their height.
• The long column is much weaker than the short column and is usually not preferred.

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