Eurocode3 Members (EN1993-1-1, 2005)

Eurocode3 Members (EN1993-1-1, 2005) covers structural steel design under the Eurocode 3 framework, specifically Part 1-1, which addresses general rules and rules for buildings.

The standard is implemented in SDC Verifier for member checks across section types such as I-beams, channels, tees, circular and rectangular tubes, and bars. Chapter 6 “Ultimate Limit States” forms the core of the verification process.

Key capabilities include:

• Axial Force Checks (Tension & Compression): Includes net section and hole deduction logic.
• Bending Moment Checks: Resistance calculation for Classes 1–3 (Class 4 is out of scope).
• Combined Axial and Bending: Interaction formulas for compression and major/minor axis bending.
• Buckling Resistance: Includes flexural, torsional, torsional-flexural, and lateral-torsional buckling checks with effective length settings.
• Shear Checks: Shear area determination varies by shape and fabrication method.
• Cross-section Classification: Based on local buckling behavior (Classes 1–3).
• Partial Safety Factors (γ_m0, γ_m1, γ_m2): Editable via National Annex settings.
• Support for Symmetry Mapping and Class 4 Downgrade Option: Increase automation and usability across diverse geometries.

Data from Beam Member Finder is used automatically, ensuring checks are applied correctly across recognized beam members. The Cm Tool and K_c factor help refine lateral-torsional buckling resistance.

The standard supports high-accuracy, code-compliant checks essential for civil and industrial steel structure design across Europe.