Eurocodes

The Eurocodes cover the structural canon: the basis of design and actions on structures, then design in concrete, steel, composite, timber, masonry and aluminium, plus geotechnical and seismic design. They are the mandatory basis for structural design across most of Europe and have been adopted or admitted well beyond it — including in Kazakhstan, where they stand as a permitted alternative to the national construction norms, with Kazakh national annexes.

Their architecture is the pairing rule: the codes deliberately leave safety-level and climate-dependent choices — partial factors, snow, wind, seismicity — as Nationally Determined Parameters, set in each country's national annex. A Eurocode calculation is complete only as code plus annex, and the annex is chosen by where the structure stands, not where the designer sits.

The corresponding failures: designing with the annex of the engineer's home market, mixing parameters from different annexes in one design, or using the bare code where no annex exists without documenting the parameter choices. A second generation of the suite is progressively being published, which will re-run every one of those edition questions across the industry.