How to Use I-Beam Load Capacity Calculator

Here’s a detailed explanation on how to use the I-Beam Load Capacity Calculator:

1. Input the Dimensions and Material Properties:

   • Width of the Flange (b): Enter the width of the flange in millimeters (e.g., 200 mm).
   • Thickness of the Flange (tf): Enter the thickness of the flange in millimeters (e.g., 15 mm).
   • Depth of the Beam (h): Enter the depth of the beam in millimeters (e.g., 300 mm).
   • Thickness of the Web (tw): Enter the thickness of the web in millimeters (e.g., 10 mm).
   • Length of the Span (L): Enter the length of the span in meters (e.g., 6 m).
   • Yield Strength of Material (σy): Enter the yield strength of the material in MPa (e.g., 250 MPa).

2. Click the Calculate Button:

   • After entering all the required values, click the “Calculate Load Capacity” button to perform the calculations.

3. View the Results:

   • The results will be displayed below the button, showing the following:
     • Moment of Inertia (I): This is the moment of inertia of the I-beam in mm⁴.
     • Section Modulus (S): This is the section modulus of the I-beam in mm³.
     • Maximum Bending Moment (M): This is the maximum bending moment in N·mm.
     • Load Carrying Capacity (P): This is the load-carrying capacity of the I-beam in kN.

Example Calculation

Assume we have an I-beam with the following properties:

• Width of the flange, 𝑏 =200 mm
• Thickness of the flange, 𝑡𝑓=15 mm
• Depth of the beam, ℎ =300 mm
• Thickness of the web, 𝑡𝑤 =10 mm
• Length of the span, 𝐿 =6 m
• Yield strength, 𝜎𝑦 =250 MPa

1. Calculate the Moment of Inertia (I):
   I= ((1/12) b h³)− (1/12) x (b−tw) x (h−2tf)³
2. Calculate the Section Modulus (S):
   S= I/ (h/2)
   
3. Calculate the Maximum Bending Moment (M):
   M= wL²/8
4. Calculate the Load Carrying Capacity (P):
   σ= M/S