Arenith Tools / Analysis module
Beam Analysis
Solver-backed beam modelling, diagrams, reactions, and structured PDF output — one module of the Arenith Workbench.
Free online beam analysis
Analyse reactions, shear forces and bending moments in your browser.
Build idealised simply supported, cantilever or continuous beam models with defined supports, point loads, moments and distributed loads. The solver uses the matrix stiffness method and produces reviewable engineering results.
Need this model reviewed for a real project?
For project-specific design, independent technical checking or a more complex structural analysis, discuss the engineering problem with Arenith.
Discuss an Engineering Problem →Engineering notes
Assumptions and limitations
Use this module as an engineering calculation aid. Confirm all project-specific assumptions before relying on results.
Units
Beam length and support/load positions are entered in metres. Point loads are entered in kN. Moment results are reported in kNm.
Sign convention
Vertical point loads are treated according to the tool input convention. Review the generated reactions, shear diagram, and moment diagram before use.
Model assumptions
The module is intended for idealised beam models with defined supports and applied loads. It does not replace project-specific modelling judgement.
Solver limitations
Check boundary conditions, support stability, load locations, and span definition. Unstable or unrealistic models may produce unusable results.
Verification
Compare important results with hand checks, independent software, or governing project methods before design or fabrication decisions.
Reports
PDF reports document entered data and calculated outputs. Add project assumptions and engineering review notes where required.