Calculation of Area of Tensile Steel

Q. A reinforced concrete (RC) beam with width of 250 mm and effective depth of 400 mm is reinforced with Fe415 steel. As per the provisions of IS 456-2000, the minimum and maximum amount of tensile reinforcement (expressed in mm${}^2$) for the section are, respectively

1. 250 and 3500
2. 205 and 4000
3. 270 and 2000
4. 300 and 2500

Q. IS 456-2000 recommends to provide certain minimum steel in a RCC beam

1. To ensure compressive failure
2. To avoid rupture of steel in case a flexural failure occurs
3. To hold the stirrup steel in position
4. To provide enough ductility to the beam

Q. For a beam cross section, width = 230 mm, effective depth = 500 mm, the number of rebars of 12 mm diameter required to satisfy minimum tension reinforcement requirement specified by IS-456:2000 (assume grade of steel as Fe500) is

1. 2

Q. As per IS 456:2000, the minimum percentage of tension reinforcement (up to two-decimal places) required in reinforced-concrete beams of rectangular cross-section (considering effective depth in the calculation of area) using Fe500 grade steel is ______.

1. 0.17