PROCEDURE

Configuration

• Enter the width of supports w1 and w2 within the range of 0.23 m to 2 m.
• Enter the nominal cover in the range of 20 mm to 70 mm.
• Click on the “Configure” button and then proceed to the next step by clicking the “Next” button.

Configure T Beam Parameters

• Enter the following parameters:
  • Width of web (bw)
  • Depth of flange (Df)
  • Span Length (L)
• Calculate the width of flange (bf) using the following formulas:
  For T beams: bf = (l_o / 6)+ bw + 6Df
  For L beams: bf = (l_o / 12) + bw + 3Df
  Where, l_o = distance between points of zero moments in the beam
• After 3 incorrect attempts, the correct value and formula will be displayed.
• Calculate the dead load and live load, and verify the answer.
• Click the "Submit" button and then click the "Next" arrow to proceed to the next level.

Calculations

• Calculate the following:
  Effective cover = Nominal cover + (bar diameter) / 2
  Effective span = Centre to centre distance between the supports
  Factored load = 1.5 × (Dead Load + Live Load)
  Bending moment = (wL²) / 8
  Shear force = (wL) / 2
• Click “Next” to proceed after verifying each value.

Overall Depth vs Ast Graph with Calculations

• Calculate the required effective depth for a balanced section and provide the overall depth (D).
• Similarly, calculate the Ast for the balanced section.
• Select various values of overall depth (D) in mm.
• After submitting multiple depths, click the “Plot Graph” button to observe how Ast varies with D.