*WHAT IS THE SLENDERNESS RATIO? Columns used for construction have a definite value called the crippling load or buckling loadthe load at which the column bends or buckles but does not break. The effective length of the column is the length of an equivalent column of the same material and cross sectional area with hinged ends and having the value of the crippling load equal to that of the given column. The least radius of gyration is the radius of gyration where the least moment of inertia is considered. The ratio of effective length to the least radius of gyration is called the slenderness ratio of the column.
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