The second generation of EN Eurocode standards is expected to be published between 2023 and 2026. These documents are being published as soon as they are available, to enable users to prepare for the transition from the first generation to second generation of Eurocodes. As set out in the National foreword of the BS EN second generation Eurocodes, UK adoptions of the first generation of Eurocodes will be withdrawn by BSI on 30 March 2028. That means there is a period of coexistence between 2023 and 2028 during which both first and second generation Eurocodes are available.
Until 30 March 2028, the first generation documents should be considered as the applicable standards for buildings and civil engineering works constructed in the UK unless otherwise specified by the relevant authority or in the specification for a particular project. While the use of provisions in second generation Eurocodes in conjunction with first generation Eurocodes is not precluded, it should be undertaken with care and should only be done when users are satisfied that it will not result in a lower level of reliability than the minimum level set in the first generation Eurocodes and associated UK National Annexes.
1 Scope
1.1 Scope of EN 1994‑1‑1
(1) EN 1994‑1‑1 gives general rules for the design of steel and concrete composite structures and supplementary provisions specific for buildings.
NOTE Specific rules for bridges are given in EN 1994‑2.
1.2 Assumptions
(1) The assumptions of EN 1990‑1 apply to EN 1994‑1‑1.
(2) In addition to the general assumptions of EN 1990‑1, the assumptions given in EN 1992‑1‑1, EN 1992‑1‑2, and EN 1993‑1‑1 apply to this document.
(3) EN 1994‑1‑1 is intended to be used in conjunction with EN 1990‑1, EN 1991 (all parts), EN 1992‑1‑1, EN 1993 (all parts), EN 1997 (all parts), EN 1998 (all parts when steel and concrete composite structures are built in seismic regions), EN 1090‑1, EN 1090‑2, EN 1090‑4, EN 13670 and ENs for construction products relevant to steel and concrete composite structures.