A square column of height 3 m subjected to an axial load of 1500 kN under dead and live load condition. Use limit state method of design. Assume effective length factor = 1.2. Size of column is fixed at 400 mm × 400 mm. Which of the following is / are true? Use M 25 and Fe 500.
1
Area of longitudinal reinforcement provided is 2000 mm2
2
Minimum area of longitudinal reinforcement as per IS : 456 – 2000 is 1280 mm2
3
Maximum area can be provided in practice as per IS : 456 – 2000 is 9600 mm2
4
Column is long column