Document type: Error! Reference source not found. Document subtype: Error! Reference source not found. Document stage: Error! Reference source not found. Document language: Error! Reference source not found. Error! Reference source not found. CEN/TC 250 Date: 2020-06 prEN 1999-1-1:2021 CEN/TC 250 Secretariat: BSI Eurocode 9: Design of aluminium structures - Part 1-1: General structural rules Eurocode 9: Calcul des structures en aluminium - Partie 1-1: Règles générales Eurocode 9: Bemessung und Konstruktion von Aluminiumtragwerken - Teil 1-1: Allgemeine Bemessungsregeln ICS: Descriptors: