EN 1999-1-3:2023/FprA1
(Amendment)Eurocode 9 - Design of aluminium structures - Part 1-3: Structures susceptible to fatigue
General Information
- Abstract
1.1 Scope of EN 1999-1-3
(1) This document gives the basis for the design of aluminium alloy structures subject to fatigue in the ultimate limit state.
(2) This document gives rules for:
- safe life design;
- damage tolerant design;
- design assisted by testing.
(3) This document does not cover pressurized containment vessels or pipework.
1.2 Assumptions
(1) The general assumptions of EN 1990 apply.
(2) The provisions of EN 1999-1-1 apply.
(3) EN 1999-1-3 is intended to be used in conjunction with EN 1990, EN 1991 (all parts), relevant parts in EN 1992 to EN 1999, EN 1090-1 and EN 1090-3 for requirements for execution, and ENs, EADs and ETAs for construction products relevant to aluminium structures.
- Status
- Not Published
- Publication Date
- 10-Feb-2027
- Technical Committee
- CEN/TC 250 - Structural Eurocodes
- Drafting Committee
- CEN/TC 250/SC 9/WG 1 - Update and Simplification of all parts of EN 1999
- Current Stage
- 4599 - Dispatch of FV draft to CMC - Finalization for Vote
- Start Date
- 13-Aug-2026
- Due Date
- 01-May-2027
- Completion Date
- 13-Aug-2026
Overview
EN 1999-1-3:2023/FprA1 (Eurocode 9 - Part 1-3: Structures Susceptible to Fatigue), published by CEN, provides comprehensive requirements and guidance for the design of aluminium alloy structures subject to fatigue in the ultimate limit state. Focused on structural integrity against fatigue failures, EN 1999-1-3 addresses the unique challenges of aluminium as a structural material, ensuring safety, durability, and performance throughout the service life of aluminium structures.
EN 1999-1-3:2023/FprA1 is an integral part of the Eurocode suite, particularly relevant to European and international construction projects involving aluminium. The standard specifies not only design approaches but also requirements relating to safe life, damage tolerance, and testing, while referencing the general rules and execution requirements laid out in other foundational Eurocodes (such as EN 1990 and EN 1991) and product standards. It does not apply to pressurized containment vessels or pipework.
Key Topics
Fatigue Design Approaches:
- Safe life design
- Damage tolerant design
- Design assisted by testing
Sources of Fatigue Loading:
- Guidance on deriving appropriate fatigue loading, with primary reference to EN 1991 (Actions on Structures) and other relevant European standards.
Structural Reliability:
- Reliability requirements in line with EN 1990-1, addressing ultimate limit states for fatigue.
Stress Concentration:
- Considerations for structural details, material selection, and stress levels, including typical stress concentration factors for common structural features.
Inspection and Maintenance:
- Guidance on inspection intervals and allowances for detectability and redundancy in structural design to support damage tolerance.
Integration with Other Eurocodes:
- Designed for compatibility with EN 1990, all applicable parts of EN 1991, and other material-specific Eurocodes (EN 1992–EN 1999). Also references execution standards such as EN 1090-1 and EN 1090-3 for construction products.
Applications
EN 1999-1-3 is essential for:
Building and Civil Engineering Structures:
Ensuring the fatigue resistance of bridges, roofs, canopies, and facades constructed from aluminium alloys.Transport Infrastructure:
Supporting the design of railway and highway structures where cyclic loads are a consideration.Industrial and Utility Installations:
Valid for non-pressurized structural components in energy, manufacturing, and storage facilities where repetitive loading can induce fatigue.Retrofit and Assessment:
Useful in evaluating the remaining life and safety margins of existing aluminium structures exposed to fatigue-inducing loads.Design Optimization:
Assists engineers and designers in selecting constructional details and materials to optimize the balance between safety, durability, and economy in aluminium structures.
Related Standards
To achieve full compliance and best-practice structural design, EN 1999-1-3 is intended to be used in conjunction with the following standards:
- EN 1990-1:2023+A1:2026 - Eurocode: Basis of structural and geotechnical design
- EN 1991 (all parts) - Actions on structures (loading specifications)
- EN 1999-1-1:2023+A1:2026 - General design rules for aluminium structures
- EN 1090-1 and EN 1090-3 - Execution of steel structures and aluminium structures
- Other structural Eurocodes - EN 1992 (concrete), EN 1993 (steel), EN 1994 (composite steel/concrete), EN 1995 (timber), etc.
EN 1999-1-3 is a vital reference for structural engineers, architects, and construction professionals focused on the safe, reliable, and compliant design of aluminium structures subject to fatigue, supporting overall safety and sustainability in modern construction.
Relations
- Effective Date
- 30-Jul-2025
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Frequently Asked Questions
EN 1999-1-3:2023/FprA1 is a draft published by the European Committee for Standardization (CEN). Its full title is "Eurocode 9 - Design of aluminium structures - Part 1-3: Structures susceptible to fatigue". This standard covers: 1.1 Scope of EN 1999-1-3 (1) This document gives the basis for the design of aluminium alloy structures subject to fatigue in the ultimate limit state. (2) This document gives rules for: - safe life design; - damage tolerant design; - design assisted by testing. (3) This document does not cover pressurized containment vessels or pipework. 1.2 Assumptions (1) The general assumptions of EN 1990 apply. (2) The provisions of EN 1999-1-1 apply. (3) EN 1999-1-3 is intended to be used in conjunction with EN 1990, EN 1991 (all parts), relevant parts in EN 1992 to EN 1999, EN 1090-1 and EN 1090-3 for requirements for execution, and ENs, EADs and ETAs for construction products relevant to aluminium structures.
1.1 Scope of EN 1999-1-3 (1) This document gives the basis for the design of aluminium alloy structures subject to fatigue in the ultimate limit state. (2) This document gives rules for: - safe life design; - damage tolerant design; - design assisted by testing. (3) This document does not cover pressurized containment vessels or pipework. 1.2 Assumptions (1) The general assumptions of EN 1990 apply. (2) The provisions of EN 1999-1-1 apply. (3) EN 1999-1-3 is intended to be used in conjunction with EN 1990, EN 1991 (all parts), relevant parts in EN 1992 to EN 1999, EN 1090-1 and EN 1090-3 for requirements for execution, and ENs, EADs and ETAs for construction products relevant to aluminium structures.
EN 1999-1-3:2023/FprA1 is classified under the following ICS (International Classification for Standards) categories: 91.010.30 - Technical aspects. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 1999-1-3:2023/FprA1 has the following relationships with other standards: It is inter standard links to EN 1999-1-3:2023. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 1999-1-3:2023/FprA1 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-maj-2026
Evrokod 9 - Projektiranje konstrukcij iz aluminijevih zlitin - 1-3. del: Konstrukcije,
občutljive na utrujanje
Eurocode 9 - Design of aluminium structures - Part 1-3: Structures susceptible to fatigue
Eurocode 9 - Bemessung und Konstruktion von Aluminiumtragwerken - Teil 1-3:
Ermüdungsbeanspruchte Tragwerke
Eurocode 9 - Calcul des structures en aluminium - Partie 1-3 : Structures sensibles à la
fatigue
Ta slovenski standard je istoveten z: EN 1999-1-3:2023/prA1
ICS:
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 1999-1-3:2023
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
March 2026
ICS
English Version
Eurocode 9 - Design of aluminium structures - Part 1-3:
Structures susceptible to fatigue
Eurocode 9 - Calcul des structures en aluminium - Eurocode 9 - Bemessung und Konstruktion von
Partie 1-3 : Structures sensibles à la fatigue Aluminiumtragwerken - Teil 1-3:
Ermüdungsbeanspruchte Tragwerke
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 1999-1-3:2023. 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 1999-1-3:2023/prA1:2026 E
worldwide for CEN national Members.
EN 1999-1-3:2023/prA1:2026 (E)
Contents Page
European foreword . 3
1 Modifications throughout the whole document . 4
2 Modification to 0.1, “Introduction to the Eurocodes” . 4
3 Modification to 0.2, “Introduction of EN 1999 (all parts)” . 4
4 Modification to 1.1, “Scope of EN 1999-1-3” . 4
5 Modification to Clause 2, “Normative references” . 4
6 Modifications to 4.2.1, “Safe life design (SLD)”. 5
7 Modification to 4.2.2, “Damage tolerant design (DTD)”. 5
8 Modification to 4.3.1, “Sources of fatigue loading” . 5
9 Modification to 4.4, “Partial factors for fatigue loads” . 5
10 Modification to D.4, “Stress concentration factors” . 6
11 Modification to E.2, “Scope and field of application” . 6
EN 1999-1-3:2023/prA1:2026 (E)
European foreword
This document (EN 1999-1-3:2023/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.
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 i
...