Example Beam-Load Menu:
Example calculation of a cantilever beam 90 inches long with a
500 pound uniform load. The beam configuration is a rectangular structural shape 2 inch by 6 inch.
1. Click on Structural Shapes.
2. Select Calculate Shape.
3. Click on Rectangular.
4. Check on 2 numerical pad.
5. Click on A transfer key.
6. Click on 6 numerical pad.
7. Click on B. transfer key.
8. Click on calculator screen.
The following will appear in the calculation readout window.
Calculate 2 in. by 6 in. Square or Rectangular
Y - Y Rotated 90 Deg. Neutral Axes Dim C = 1 in.
Area of Section = 12 in.^2
Moment of Inertia = 4 in.^4
Section Modulus. = 4 in.^3
Radius of Gyration. = 0.577350269189626 in.
X - X as Shown Neutral Axes Dim C = 3 in.
Moment of Inertia = 36 in.^4
Section Modulus = 12 in.^3
Radius of Gyration. = 1.73205080756888 in.
9. Click on Beam-Load.
10. Select cantilever.
11. Click on uniform load.
12. Check on 9 numerical pad.
13. Check on 0 numerical pad.
14. Click on A transfer key.
15. Click on 0 numerical pad.
16. Click on C transfer key.
17. Check on 9 numerical pad.
18. Check on 0 numerical pad.
19. Click on B transfer key.
20. Check on 5 numerical pad.
21. Check on 0 numerical pad.
22. Check on 0 numerical pad.
23. Click on F transfer key.
24. Click on calculator screen.
The following will appear in the calculation readout window.
Beam Calculation Cantilever Uniform Load
Moment of Inertia = 36 in.^4
Section Modulus = 12 in.^3
Max. Moment = 36268.38 lbs. in.
Max. Shear = 805.964 lbs.
Max Deflection = 0.0680032125 in.
Max Stress = 3022.365 lbs. in.^2
Max Shear Stress = 67.1636666666667 lbs. in.^2
This calculation based on a 305.9 beam weight in the calculation.
Note: The calculation is based on steel having a modules of elasticity of 30 million
psi. Use of setup menu to set the modules of elasticity for the material that is being used.
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