Analyze beam loads with fast visual results. Track reactions, shear force, and bending moments clearly. Build safer beam checks using organized, exportable engineering insights.
Use the form below to model a simply supported beam or a cantilever beam. Add as many point loads, distributed loads, and applied moments as needed.
These sample values show how to organize typical entries before calculation.
| Beam Type | Span | Point Load | UDL | Applied Moment | Expected Use |
|---|---|---|---|---|---|
| Simply supported | 8 m | 20 kN downward at 3 m | 5 kN/m downward from 4 m to 7 m | 10 kN·m clockwise at 6.5 m | General beam design review |
| Cantilever | 5 m | 12 kN downward at 4 m | 2 kN/m downward from 1 m to 5 m | 6 kN·m counterclockwise at 2 m | Fixed-end support check |
| Simply supported | 10 ft | 8 lb upward at 2 ft | 3 lb/ft downward from 3 ft to 9 ft | 0 | Mixed load comparison |
1. Signed vertical load = point loads + distributed load resultants.
2. Distributed load resultant = intensity × loaded length.
3. Distributed load centroid = (start + end) ÷ 2.
4. Simply supported reactions use equilibrium:
RA + RB = ΣV
RB × L = Σ(Moments about A)
5. Cantilever reactions use:
Vfixed = ΣV
Mfixed = Σ(Moments about fixed end)
6. Internal shear at any section subtracts loads already passed.
7. Internal moment at any section equals support effects minus the moment contribution from each load and applied moment to the left.
This calculator treats downward loads as positive and clockwise applied moments as positive input values. Positive bending moment is plotted as sagging.
It computes support reactions, shear force values, bending moment values, critical peaks, and a full diagram along the beam span.
Yes. You can combine multiple point loads, multiple uniformly distributed loads, and multiple applied moments in one beam model.
This version supports simply supported beams and cantilever beams. Those two cases cover many common classroom and design-check situations.
Downward loads are treated as positive inputs. Clockwise applied moments are positive. Positive plotted bending moment represents sagging behavior.
The bending moment diagram comes from the load distribution through the beam. Shear force helps explain slope changes and important turning points.
Accuracy depends on the selected divisions. A higher division count creates a denser set of points and a smoother plotted response.
Yes. The CSV export includes the x-position, shear value, and moment value for every calculated point. The PDF summarizes the same analysis.
No. It is useful for beam analysis, quick checks, and learning. Final structural design should still follow code requirements and professional review.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.