COLUMN AS PER IS 456:2000

              COLUMN (AS PER IS 456:2000)

INTRODUCTION :- A COLUMN OR STRUT IS A COMPRESSION MEMBER. WHEN A MEMBER CARRYING MAINLY AXIAL LOAD IS VERTICAL, IT IS A TERMED AS ‘COLUMN’ WHILE IF IT IS A INCLINED COLUMN, IT IS TERMED AS A ‘STRUT’.

SLENDERNESS RATIO :- IT IS A THE RATIO OF EFFECTIVE LENGTH OF THE COLUMN TO LEAST LATERAL DIMENSION.

S.R. =  Lef/ b

TYPES OF COLUMNS :-

Lef/ b < 12

(a)     SHORT COLUMN :- THE COLUMN IS CONSIDERED AS SHORT WHEN THE SLENDERNESS RATIO OF COLUMN IS LESS THAN OR EQUAL TO 12.

(b)    LONG COLUMN :- THE COLUMN IS CONSIDERED AS SHORT WHEN THE SLENDERNESS RATIO OF COLUMN IS LESS THAN OR EQUAL TO 12.

Lef/ b > 12