RCC COLUMN DESIGN

RCC COLUMN DESIGN

ASSUME THE LENGTH OF COLUMN AND FOOTINGS IS ABOUT 19 FEET

THE COLUMN SIZE IS (2' X 1.5') 

THE ROD WHICH WE ARE GOING TO USE IS 20MM,16MM, AND 8MM FOR STIRRUPS

THE DENSITY OF STEEL FOR 

20MM=2.5 KG/M

16MM = 1.6 KG/M

8MM = 0.4 KG /M

LET US CALCULATE THE STEEL REQUIRED OF ONE COLUMN.

STEEL BAR SIZE = DENSITY OF BAR * LENGTH OF COLUMN * NUMBER OF BARS

LET US CONVERT THE LENGTH OF BAR IN  TO METERS

19' * 0.3 = 5.7 M

20MM ROD = 2.5 KG/M * 5.7 M * 4 = 57 KG (APPROXIMATELY 1 BUNDLE)
16MM ROD = 1.6 KG/M * 5.7 M * 4 = 37 KG (APPROXIMATELT 2 RODS)

8MM ROD FOR STIRUPS @ C/C OF 0.5'

TOTAL WE REQURIE 30 STIRUPS

CUTTING LENGTH OF ROD 2'+1.5'+2'+1.5'= 7'+ 1' = 8'

8' * 0.3M = 2.7M

8MM ROD = 0.4 * 2.7 * 30 = 32.4 KG ( APPROXIMATELY 14 RODS)

*(1 TMT STEEL ROD IS OF 45' IN LENGTH)*