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Answer :
The tensile reinforcement section area can be calculated using the formula (M * [tex]10^6[/tex]) / (0.87 * fy * d).Tensile reinforcement section area: 276.34 mm².
What is the tensile reinforcement area?
To calculate the tensile reinforcement section area for the given reinforced concrete beam, we can use the following steps:
- Determine the maximum allowable stress for the steel reinforcement based on the grade of steel (HRB335). The allowable stress for HRB335 is typically around 335 MPa.
- Calculate the required tensile reinforcement area using the formula:
As = (M * [tex]10^6[/tex]) / (0.87 * fy * d)
Where:
M is the bending moment (125 kN-m in this case).
fy is the yield strength of the steel reinforcement (typically 335 MPa).
d is the effective depth of the beam, which can be taken as the total depth of the beam minus the cover.
- Determine the effective depth of the beam. In this case, the total depth of the beam is 500 mm, and considering a typical cover of 25 mm on each side, the effective depth would be 500 mm - 2 * 25 mm = 450 mm.
- Substitute the values into the formula to calculate the required tensile reinforcement area.
Using these steps, the tensile reinforcement section area can be determined, and a reinforcement diagram can be drawn accordingly. However, since I can't draw diagrams directly, I can provide the calculated value for the tensile reinforcement section area, which you can use to create the diagram.
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