EN 1999-1-2:2023/prA1

SLOVENSKI STANDARD
01-maj-2026
Evrokod 9 - Projektiranje konstrukcij iz aluminijevih zlitin - 1-2. del: Projektiranje
požarnovarnih konstrukcij
Eurocode 9 - Design of aluminium structures - Part 1-2: Structural fire design
Eurocode 9 - Bemessung und Konstruktion von Aluminiumtragwerken - Teil 1-2:
Tragwerksbemessung für den Brandfall
Eurocode 9 - Calcul des structures en aluminium - Partie 1-2: Calcul du comportement
au feu
Ta slovenski standard je istoveten z: EN 1999-1-2:2023/prA1
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.010.30 Tehnični vidiki Technical aspects
91.080.17 Aluminijaste konstrukcije Aluminium structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
EN 1999-1-2:2023
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
March 2026
ICS 13.220.50; 91.010.30; 91.080.17
English Version
Eurocode 9 - Design of aluminium structures - Part 1-2:
Structural fire design
Eurocode 9 - Calcul des structures en aluminium - Eurocode 9 - Bemessung und Konstruktion von
Partie 1-2: Calcul du comportement au feu Aluminiumtragwerken - Teil 1 2:
Tragwerksbemessung für den Brandfall
This draft amendment is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 250.

This draft amendment A1, if approved, will modify the European Standard EN 1999-1-2:2023. If this draft becomes an
amendment, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
inclusion of this amendment into the relevant national standard without any alteration.

This draft amendment was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 1999-1-2:2023/prA1:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
1 Modifications throughout the whole document . 4
2 Modifications to the Introduction . 4
3 Modification to Clause 1, "Scope" . 4
4 Modifications to Clause 2, "Normative references" . 5
5 Modifications to 4.1, "General" . 5
6 Modifications to 4.2, "Nominal fire exposure" . 5
7 Modifications to 4.5, "Design values of material properties" . 5
8 Modification to 4.6, "Verification methods" . 5
9 Modifications to 4.7, "Member analysis" . 6
10 Modification to 4.8, "Analysis of part of the structure" . 6
11 Modification to 5.2.1.4, "Emissivity coefficient" . 6
12 Modification to Clause 6, "Tabulated design data" . 6
13 Modification to 7.2.3, "Beams" . 6
14 Modification to 8.3, "Mechanical analysis" . 6
15 Modification to 8.4, "Validation of advanced design methods" . 7
16 Modification to B.7.2, "Flame emissivity" . 7
17 Modifications to the Bibliography . 7

European foreword
This document (EN 1999-1-2:2023/prA1:2026) has been prepared by Technical Committee CEN/TC 250
“Structural Eurocodes”, the secretariat of which is held by BSI. CEN/TC 250 is responsible for all
Structural Eurocodes and has been assigned responsibility for structural and geotechnical design matters
by CEN.
This document is currently submitted to the CEN Enquiry.
This document will amend EN 1999-1-2:2023.
NOTE Some modifications are purely editorial corrections to improve the quality of the document and these
will not be tagged in the consolidated publication, as noted after the modification.
The first generation of EN Eurocodes was published between 2002 and 2007. This document forms part
of the second generation of the Eurocodes, which have been prepared under Mandate M/515 issued to
CEN by the European Commission and the European Free Trade Association.
The Eurocodes have been drafted to be used in conjunction with relevant execution, material, product
and test standards, and to identify requirements for execution, materials, products and testing that are
relied upon by the Eurocodes.
The Eurocodes recognize the responsibility of each Member State and have safeguarded their right to
determine values related to regulatory safety matters at national level through the use of National
Annexes.
SIST EN 1999-1-2:2023/
...