prEN 1993-1-14
(Main)Eurocode 3 - Design of steel structures - Part 1-14: Design assisted by finite element analysis
Eurocode 3 - Design of steel structures - Part 1-14: Design assisted by finite element analysis
1.1 Scope of prEN 1993-1-14
(1) This document gives principles and requirements for the use of numerical methods in the design of steel structures, more specifically for the ultimate limit state (including fatigue) and serviceability limit state verifications. It also gives principles and requirements for the application of advanced finite element (FE) and similar modelling techniques for numerical simulation which also covers safety assessment.
(2) This document covers general methodologies such as the finite element method (FEM), finite strip method (FSM) or generalized beam theory (GBT) for modelling, analysis and design of steel structures made of the following members and joint configurations:
a) hot-rolled profiles,
b) cold-formed members and sheeting,
c) welded plated profiles,
d) stainless steel profiles,
e) plate assemblies,
f) shell structures,
g) welded and bolted joints.
In addition to the general design rules, specific additional rules can also be found in the relevant standard parts in EN 1993.
(3) This document contains harmonized design rules in terms of the application of the numerical modelling methods, development of the numerical models, application of analysis types, result evaluation methods, and determination of the resistance of steel structures for different limit states.
1.2 Assumptions
(1) This document gives rules intended for engineers who are experienced in the use of FE.
(2) It is recognized that structural analysis, based upon the laws of physics, has been successfully researched, developed, historically or currently used for the design and verification of elements or whole structural frames. This remains appropriate for many structural solutions. However, when a more detailed understanding of structural behaviour is required, the methods described in this document can be useful for the professional design.
(3) Unless specifically stated, EN 1990, EN 1991 (all parts) and the other relevant parts of EN 1993-1 (all subparts) apply.
(4) The design methods given in EN 1993-1-14 are applicable if
- the execution quality is as specified in EN 1090-2 and/or EN 1090-4, and
- the construction materials and products used are as specified in the relevant parts of EN 1993 (all parts), or in the relevant material and product specifications.
Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-14: Bemessung mithilfe von Finite-Element-Berechnung
1.1 Anwendungsbereich von prEN 1993-1-14
(1) Dieses Dokument enthält Grundsätze und Anforderungen für die Anwendung numerischer Verfahren bei der Bemessung von Stahlbauten, insbesondere für die Nachweise des Grenzzustands der Tragfähigkeit (einschließlich Ermüdung) und der Gebrauchstauglichkeit. Es enthält auch Grundsätze und Anforderungen für die Anwendung fortgeschrittener Finite-Elemente (FE) und ähnlicher Modellierungsverfahren für die numerische Simulation, die auch die Sicherheitsbeurteilung abdeckt.
(2) Dieses Dokument behandelt allgemeine Vorgehensweisen wie die Finite-Elemente-Methode (FEM), die Finite-Streifen-Methode (FSM) oder die verallgemeinerte technische Biegetheorie (GBT) für die Modellierung, die Berechnung und Bemessung von Stahlbauten, die aus den folgenden Bauteilen und Verbindungskonfigurationen bestehen:
a) warmgewalzten Profilen;
b) kaltgeformten Bauteilen und Blechen;
c) geschweißten Blechquerschnitte;
d) Profilen aus nichtrostendem Stahl;
e) plattenförmigen Bauteilen;
f) Schalen;
g) geschweißten und geschraubten Verbindungen.
Neben den allgemeinen Bemessungsregeln finden sich in den entsprechenden Normteilen der EN 1993 auch spezifische Zusatzregeln.
(3) Dieses Dokument enthält harmonisierte Bemessungsregeln in Bezug auf die Anwendung der numerischen Modellierungsverfahren, die Entwicklung der numerischen Modelle, die Anwendung von Berechnungstypen, die Verfahren zur Ergebnisbewertung und die Bestimmung des Widerstands von Stahlbauten für verschiedene Grenzzustände.
1.2 Annahmen
(1) Dieses Dokument enthält Regeln für Ingenieure, die in der Anwendung von FE erfahren sind.
(2) Es wird anerkannt, dass die auf den Gesetzen der Physik basierende Tragwerksberechnung erfolgreich für die Bemessung und den Nachweis von Elementen oder ganzen Tragwerken erforscht, entwickelt, historisch oder gegenwärtig verwendet wurde. Dies ist für viele strukturelle Lösungen nach wie vor angemessen. Wenn jedoch ein detaillierteres Verständnis des Tragverhaltens erforderlich ist, können die in diesem Dokument beschriebenen Verfahren für die professionelle Bemessung nützlich sein.
(3) Sofern nicht ausdrücklich angegeben, gelten EN 1990, EN 1991 (alle Teile) und die anderen relevanten Teile von EN 1993-1.
(4) Die in prEN 1993-1-14 angegebenen Bemessungsverfahren sind anwendbar, wenn
- die Ausführungsqualität den Vorgaben von EN 1090-2 und/oder EN 1090-4 entspricht und
- die verwendeten Werkstoffe und Bauprodukte den einschlägigen Teilen von EN 1993 oder den einschlägigen Werkstoff- und Produktspezifikationen entsprechen.
Eurocode 3 - Calcul des structures en acier - Partie 1-14 : Calcul assisté par des analyses par éléments finis
1.1 Domaine d'application de la norme prEN 1993-1-14
(1) Le présent document donne les principes et les exigences pour l'utilisation des méthodes numériques pour le calcul des structures en acier, plus particulièrement pour les vérifications à l'état limite ultime (y compris la fatigue) et à l'état limite de service. Il donne également les principes et les exigences pour l'application des méthodes avancées de calcul aux éléments finis et des techniques de modélisation similaires pour la simulation numérique qui couvre également l'évaluation de la sécurité.
(2) Le présent document couvre les méthodologies générales telles que la méthode des éléments finis (FEM), la méthode des bandes finies (FSM) ou la théorie généralisée des poutres (GBT) pour la modélisation, l'analyse et le calcul des structures en acier composées des éléments et des configurations d'assemblage suivants :
a) profilés laminés à chaud,
b) profilés et plaques formés à froid,
c) profilés reconstitués soudés,
d) profilés en acier inoxydable,
e) assemblages de plaques,
f) structures en coques,
g) assemblages soudés et boulonnés.
En plus des règles générales de calcul, des règles supplémentaires spécifiques peuvent également être trouvées dans les parties pertinentes de la norme EN 1993.
(3) Ce document contient des règles de calcul harmonisées en termes d'application des méthodes de modélisation numérique, de développement des modèles numériques, d'application des types d'analyse, de méthodes d'évaluation des résultats et de détermination de la résistance des structures en acier pour différents états limites.
1.2 Hypothèses
(1) Ce document donne des règles destinées aux ingénieurs expérimentés dans l'utilisation de FE.
(2) Il est reconnu que l'analyse structurale, basée sur les lois de la physique, a été étudiée, développée, utilisée historiquement ou actuellement avec succès pour le calcul et la vérification d'éléments ou de ouvrages structuraux complets. Cette méthode reste appropriée pour de nombreuses solutions structurales. Cependant, lorsqu'une compréhension plus détaillée du comportement structural est nécessaire, les méthodes décrites dans le présent document peuvent être utiles pour le dimensionnement.
(3) Sauf mention spécifique, l'EN 1990, l'EN 1991 (toutes les parties) et les autres parties pertinentes de l'EN 1993-1 s'appliquent.
(4) Les méthodes de calcul indiquées dans la norme prEN 1993-1-14 sont applicables si
- la qualité d'exécution est conforme aux spécifications des normes EN 1090-2 et/ou EN 1090-4, et
- les matériaux de construction et les produits utilisés sont conformes aux parties pertinentes de la norme EN 1993, ou aux spécifications des matériaux et des produits.
Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-14. del: Projektiranje na osnovi analize s končnimi elementi
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-december-2023
Evrokod 3 - Projektiranje jeklenih konstrukcij - 1-14. del: Projektiranje z analizo
končnih elementov
Eurocode 3 - Design of steel structures - Part 1-14: Design assisted by finite element
analysis
Eurocode 3 - Bemessung und Konstruktion von Stahlbauten - Teil 1-14: Bemessung
mithilfe von Finite-Element-Berechnung
Eurocode 3 - Calcul des structures en acier - Partie 1-14 : Calcul assisté par des
analyses par éléments finis
Ta slovenski standard je istoveten z: prEN 1993-1-14
ICS:
91.010.30 Tehnični vidiki Technical aspects
91.080.13 Jeklene konstrukcije Steel structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2023
ICS 91.010.30; 91.080.13
English Version
Eurocode 3 - Design of steel structures - Part 1-14: Design
assisted by finite element analysis
Eurocode 3 - Calcul des structures en acier - Partie 1- Eurocode 3 - Bemessung und Konstruktion von
14 : Calcul assisté par des analyses par éléments finis Stahlbauten - Teil 1-14: Bemessung mithilfe von Finite-
Element-Berechnung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 250.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard 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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 1993-1-14:2023 E
worldwide for CEN national Members.
Contents Page
European foreword . 4
0 Introduction . 5
1 Scope . 8
1.1 Scope of prEN 1993-1-14 . 8
1.2 Assumptions . 8
2 Normative references . 9
3 Terms, definitions and symbols . 9
3.1 Terms and definitions . 9
3.2 Symbols and abbreviations . 11
4 Basis of design and modelling . 14
5 Modelling . 15
5.1 Geometrical models . 15
5.2 Support and load models . 17
5.3 Material models . 18
5.4 Imperfections . 24
5.5 Imperfection combinations . 31
6 Analysis . 32
6.1 Structural analysis . 32
6.2 Thermal analysis . 34
7 Validation and verification . 35
7.1 General. 35
7.2 Verification . 36
7.3 Validation . 37
8 Design methodology . 38
8.1 Ultimate limit state . 38
8.2 Fatigue limit state . 44
8.3 Serviceability limit state . 54
9 Documentation . 54
Annex A (informative) Calculation of model factor (γ ) . 55
FE
A.1 Use of this Annex . 55
A.2 Scope and field of application . 55
A.3 Calculation of model factor (γ ) . 55
FE
Annex B (informative) Stress concentrations . 57
B.1 Use of this Annex . 57
B.2 Scope and field of application . 57
B.3 Separation of stress concentration and numerical singularities . 57
B.4 Consideration of stress concentration in design . 58
Annex C (normative) Limits on maximum strains for beam finite elements . 60
C.1 Use of this Annex . 60
C.2 Scope and field of application . 60
C.3 Strain limits . 60
Bibliography . 64
European foreword
This document (prEN 1993-1-14:2023) 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 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 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.
0 Introduction
0.1 Introduction to the Eurocodes
The Structural Eurocodes comprise the following standards generally consisting of a number of Parts:
— EN 1990, Eurocode: Basis of structural and geotechnical design
— EN 1991, Eurocode 1: Actions on structures
— EN 1992, Eurocode 2: Design of concrete structures
— EN 1993, Eurocode 3: Design of steel structures
— EN 1994, Eurocode 4: Design of composite steel and concrete structures
— EN 1995, Eurocode 5: Design of timber structures
— EN 1996, Eurocode 6: Design of masonry structures
— EN 1997, Eurocode 7: Geotechnical design
— EN 1998, Eurocode 8: Design of structures for earthquake resistance
— EN 1999, Eurocode 9: Design of aluminium structures
— New parts are under development, e.g. Eurocode for design of structural glass
The Eurocodes are intended for use by designers, clients, manufacturers, constructors, relevant
authorities (in exercising their duties in accordance with national or international regulations),
educators, soft-ware developers, and committees drafting standards for related product, testing and
execution standards.
NOTE Some aspects of design are most appropriately specified by relevant authorities or, where not
specified, can be agreed on a project-specific basis between relevant parties such as designers and clients. The
Eurocodes identify such aspects making explicit reference to relevant authorities and relevant parties.
0.2 Introduction to EN 1993 (all parts)
EN 1993 (all parts) applies to the design of buildings and civil engineering works in steel. It complies
with the principles and requirements for the safety and serviceability of structures, the basis of their
design and verification that are given in EN 1990 – Basis of structural and geotechnical design.
EN 1993 (all parts) is concerned only with requirements for resistance, serviceability, durability and
fire resistance of steel structures. Other requirements, e.g. concerning thermal or sound insulation, are
not covered.
EN 1993 is subdivided in various parts:
— EN 1993-1, Design of steel structures – Part 1: General rules and rules for buildings
— EN 1993-2, Design of steel structures – Part 2: Bridges
— EN 1993-3, Design of steel structures – Part 3: Towers, masts and chimneys
— EN 1993-4, Design of steel structures – Part 4: Silos and tanks
— EN 1993-5, Design of steel structures – Part 5: Piling
— EN 1993-6, Design of steel structures – Part 6: Crane supporting structures
— EN 1993-7, Design of steel structures – Part 7: Sandwich panels (under preparation).
EN 1993-1 in itself does not exist as a physical document, but comprises the following 14 separate
parts, the basic part being EN 1993-1-1:
— EN 1993-1-1, Design of steel structures – Part 1-1: General rules and rules for buildings
— EN 1993-1-2, Design of steel structures – Part 1-2: Structural fire design
— EN 1993-1-3, Design of steel structures – Part 1-3: Cold-formed members and sheeting
NOTE Cold-formed hollow sections supplied according to EN 10219 are covered in EN 1993-1-1.
— EN 1993-1-4, Design of steel structures – Part 1-4: Stainless steel structures
— EN 1993-1-5, Design of steel structures – Part 1-5: Plated structural elements
— EN 1993-1-6, Design of steel structures – Part 1-6: Strength and stability of shell structures
— EN 1993-1-7, Design of steel structures – Part 1-7:
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.