Codes and limits
What the software checks, and the assumptions an engineer must confirm.
Codes and methods
- Eurocode 3: EN 1993-1-1 resistance of cross-sections and members (including the general method for lateral-torsional buckling), and EN 1993-1-5 for transverse forces at supports.
- AISC 360: chapters F and G, and J10 for local web yielding and crippling, in LRFD and ASD.
- Load factors follow EN 1990 and ASCE 7 style combinations as shown in each report.
Assumptions
- Linear elastic analysis of a straight beam of constant section, with rigid vertical supports.
- Strong-axis bending, load at the shear centre, and supports that restrain twist.
- The Eurocode checks use the recommended partial factors unless you choose the UK or German preset or enter your own. The presets change only γM0, γM1, γG and γQ, so check every national choice against the published National Annex for your project.
- The section library has been compared with published catalogue tables and the analysis with closed-form results. The record is in
tools/verify/VERIFICATION.md. - Weld, splice and joint checks are simplified. Connections need their own design.
- Cantilevers use a conservative lateral-torsional buckling factor. Set the buckling length to suit the bracing.
Professional responsibility
This software supports engineering calculation. It does not replace professional judgement. Section properties, code clauses and results must be checked by a qualified engineer before they are used for design, tender or construction. The authors and operators of the site accept no liability for decisions made from its output.