2D frame analysis
Online Beam Analysis Calculator
AutoDesign’s online beam analysis tool is a browser-based continuous-beam solver (a 2D frame under the hood). Build a beam over any number of supports, mix steel and concrete members, apply load cases and combinations, and read shear, moment, deflection and reaction results instantly — no install, no spreadsheet.
What this calculator does
- ✓Analyze continuous beams over multiple supports, or a single simply-supported span
- ✓Apply point, distributed (UDL/trapezoidal) and applied-moment loads grouped into load cases
- ✓Build load combinations and read load-case, combination and envelope results
- ✓Get shear, bending-moment and deflection diagrams plus support reactions
- ✓Mix steel and concrete members with different sections along the beam
Frequently asked questions
Is this beam analysis calculator free to use online? +
Yes. The beam analysis calculator runs entirely in your browser. Create a free AutoDesign account to launch the full tool and save your models.
Can it analyze a continuous beam over several supports? +
Yes. You can place any number of supports and define multiple spans. The solver treats the beam as a 2D frame, so continuous-beam moments, shears and reactions are computed exactly.
What loads and results does it support? +
Point loads, distributed (uniform and trapezoidal) loads and applied moments, organized into load cases and combinations. Outputs include shear, bending moment, deflection and support reactions for any case, combination or envelope.
Ready to run a design?
Open the Online Beam Analysis Calculator in your browser — no install required.
Launch calculator