EN 1992-1-2:2004

Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design

(1)P  This Part 1-2 of EN 1992 deals with the design of concrete structures for the accidental situation of fire exposure and is intended to be used in conjunction with EN 1992-1-1 and EN 1991-1-2.  This part 1-2 only identifies differences from, or supplements to, normal temperature design.
(2)P  This Part 1-2 of EN 1992 deals only with passive methods of fire protection. Active methods are not covered.
(3)P  This Part 1-2 of EN 1992  applies to concrete structures  that are required to fulfil certain functions when exposed to fire, in terms of:
- avoiding premature collapse of the structure (load bearing function)
- limiting fire spread (flame, hot gases, excessive heat) beyond designated areas (separating function)
(4)P  This Part 1-2 of EN 1992 gives principles and application rules (see EN 1991-1-2) for designing structures for specified requirements in respect of the aforementioned functions and the levels of performance.
(5)P  This Part 1-2 of EN 1992 applies to structures, or parts of structures, that are within the scope of EN 1992-1-1 and are designed accordingly. However, it does not cover:
- structures with prestressing by external tendons
- shell structures
(6)P  The methods given in this Part 1-2 of EN 1992 are applicable to normal weight concrete up to strength class C90/105 and for lightweight concrete up to strength class LC55/60. Additional and alternative rules for strength classes above C50/60 are given in section 6.

Eurocode 2: Bemessung und Konstruktion von Stahlbeton- und Spannbetontragwerken - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall

(1)P EN 1992-1-2 behandelt die Bemessung von Betontragwerken für den Sonderlastfall Brandeinwirkung und ist in Verbindung mit EN 1992-1-1 und EN 1991-1-2 anzuwenden. EN 1992-1-2 enthält abweichende und zusätzliche Regelungen zu den Bemessungsregeln für Tragwerke bei Normaltemperatur.
(2)P EN 1992-1-2 enthält nur Methoden des passiven konstruktiven (baulichen) Brandschutzes. Methoden des aktiven Brandschutzes werden nicht erfasst.
(3)P EN 1992-1-2 gilt für Betontragwerke, die bei Brandeinwirkung bestimmte Kriterien erfüllen müssen:
- Vermeiden eines vorzeitigen Tragwerkeinsturzes (Tragfähigkeit)
- Begrenzung der Brandausbreitung (Flammen, heiße Gase, extreme Hitze) über festgelegte Flächen hinaus (raumabschließende Wirkung)
(4)P EN 1992-1-2 enthält Prinzipien und Anwendungsregeln (siehe EN 1991-1-2) im Hinblick auf die Tragwerksbemessung zur Erfüllung der vorher genannten Funktionen und Leistungskriterien.
(5)P EN 1992-1-2 gilt für Tragwerke oder Teilen von Tragwerken die zum Anwendungsbereich von EN 1992-1-1 gehören und entsprechend bemessen sind. Nicht behandelt werden dagegen:
- Tragwerke mit externer Vorspannung
- Schalentragwerke
(6)P Die Bemessungsverfahren in EN 1992-1-2 gelten für Normalbeton bis zur Festigkeitsklasse C90/105und für Leichtbeton bis zur Festigkeitsklasse LC55/60. Im Abschnitt 6 werden zusätzliche und alternative Regeln für die Festigkeitsklasse größer C50/60 gegeben.

Eurocode 2: Calcul des structures en béton - Partie 1-2: Règles générales - Calcul du comportement au feu

(1)P    La Partie 1-2 de l'EN 1992 traite du calcul des structures en béton en situation accidentelle d'exposition au feu ; elle est destinée à être utilisée conjointement avec l'EN 1992-1-1 et l'EN 1991-1-2. Cette partie 1-2 identifie uniquement les différences, ou les éléments supplémentaires, par rapport au calcul aux températures normales.
(2)P    La partie 1-2 de l'EN 1992 vise uniquement les méthodes passives de protection contre l'incendie. Les méthodes actives ne sont pas traitées.
(3)P    La partie 1-2 de l'EN 1992 s'applique aux structures en béton requises pour remplir certaines fonctions lorsqu'elles sont exposées au feu, à savoir :
- éviter une ruine prématurée de la structure (fonction porteuse)
- limiter l'extension du feu (flammes, gaz chauds, chaleur excessive) en dehors des zones concernées (fonction séparative).
(4)P    La partie 1-2 de l'EN 1992 donne des principes et des règles d'application (voir l'EN 1991-1-2) pour le calcul des structures en vue de satisfaire aux exigences spécifiées, selon les fonctions et niveaux de performance susmentionnés.
(5)P    La partie 1-2 de l'EN 1992 s'applique aux structures ou aux parties de structures qui relèvent du domaine d'application de l'EN 1992-1-1 et sont calculées en conséquence. Toutefois, elle ne couvre pas :
- les structures à précontrainte extérieure,
- les structures en coque.
(6)P    Les méthodes indiquées dans la partie 1-2 de l'EN 1992 sont applicables au béton de densité normale présentant une classe de résistance jusqu'à C90/105 et au béton léger présentant une classe de résistance jusqu'à LC55/60. Des règles complémentaires  pour les classes de résistance supérieures à C50/60 sont données dans la section 6.

Evrokod 2: Projektiranje betonskih konstrukcij - 1-2. del: Splošna pravila - Projektiranje požarnovarnih konstrukcij

Ta 1-2. del standarda EN 1992 obravnava projektiranje betonskih konstrukcij pri nezgodnem projektnem stanju zaradi izpostavljenosti požaru in se uporablja v povezavi z EN 1992-1-1 in EN 1991-1-2. Podaja samo spremenjena in dodatna pravila glede na pravila za projektiranje konstrukcij pri normalni temperaturi.
Ta 1-2. del standarda EN 1992 obravnava samo metode pasivne požarne zaščite, metode aktivne zaščite v njem niso obravnavane.
Ta 1-2. del standarda EN 1992 se uporablja za betonske konstrukcije, ki morajo v primeru izpostavljenosti požaru izpolniti določene kriterije glede:
preprečitve prehitre porušitve konstrukcije (funkcija nosilnosti),
omejevanja širjenja požara (plamena, vročih plinov, čezmerne toplote) preko določenega območja (funkcija ločevanja).
Ta 1-2. del standarda EN 1992 podaja načela in pravila (glej EN 1991-1-2) za projektiranje konstrukcij po posebnih zahtevah glede na izpolnjevanje predhodno navedenih funkcij in ravni obnašanja.
Ta 1-2. del standarda EN 1992 se uporablja za ustrezno projektirane konstrukcije ali dele konstrukcij s področja uporabe standarda EN 1992-1-1. Ta del standarda pa ne obravnava:
z zunanjimi kabli prednapetih konstrukcij, lupinastih konstrukcij.
Metode, podane v tem 1-2. delu standarda EN 1992, so uporabne za betone običajne teže do trdnostnega razreda C90/105 in za lahke betone do trdnostnega razreda LC55/60. Dodatna in alternativna pravila za trdnostne razrede betona, višje od C50/60, so podana v poglavju 6.

General Information

• Status: Withdrawn
• Publication Date: 14-Dec-2004
• Withdrawal Date: 21-Nov-2023
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 91.010.30 - Technical aspects
• ICS: 91.080.40 - Concrete structures
• Technical Committee: CEN/TC 250 - Structural Eurocodes
• Drafting Committee: CEN/TC 250/SC 2 - Eurocode 2: Design of concrete structures
• Directive: 305/2011 - Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
• Directive: 89/106/EEC - Construction products
• Mandate: M/265 - Mandate to CEN for the conversion of the Eurocodes from ENV into EN concerning the structural and geotechnical design of buildings and civil engineering works
• Mandate: M/BC/CEN/89/11 - Framework mandate to CEN on Eurocode work : execution of a standardization programme on Eurocodes for the structural design of building and civil engineering works
• Ref Project: SIST EN 1992-1-2:2005 - Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design

Relations

• Replaces: ENV 1992-1-2:1995/AC:1996 - Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design
• Effective Date: 22-Dec-2008
• Replaces: ENV 1992-1-2:1995 - Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design
• Effective Date: 22-Dec-2008
• Replaced By: EN 1992-1-2:2023 - Eurocode 2 - Design of concrete structures – Part 1-2: Structural fire design
• Effective Date: 18-Jan-2023
• Amended By: EN 1992-1-2:2004/A1:2019 - Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design
• Effective Date: 04-Apr-2017
• Corrected By: EN 1992-1-2:2004/AC:2008 - Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design
• Effective Date: 12-Dec-2009

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire designEvrokod 2: Projektiranje betonskih konstrukcij - 1-2. del: Splošna pravila - Projektiranje požarnovarnih konstrukcijEurocode 2:
Calcul des structures en béton - Partie 1-2:
Regles générales - Calcul du comportement au feuEurocode 2: Bemessung und Konstruktion von Stahlbeton- und Spannbetontragwerken - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den BrandfallTa slovenski standard je istoveten z:EN 1992-1-2:2004SIST EN 1992-1-2:2005en91.080.40Betonske konstrukcijeConcrete structures91.010.30Technical aspects13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:SIST ENV 1992-1-2:2004/AC:2004SIST ENV 1992-1-2:20041DGRPHãþDSLOVENSKI
STANDARDSIST EN 1992-1-2:200501-maj-2005







EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1992-1-2
December 2004 ICS 13.220.50; 91.010.30; 91.080.40 Supersedes ENV 1992-1-2:1995 English version
Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design
Eurocode 2:
Calcul des structures en béton - Partie 1-2:
Règles générales - Calcul du comportement au feu
Eurocode 2: Planung von Stahlbeton- und Spannbetontragwerken - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall This European Standard was approved by CEN on 8 July 2004.
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. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member.
This European Standard exists 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1992-1-2:2004: E



EN 1992-1-2:2004 (E)
2
Contents List
1 General 1.1 Scope
1.1.1 Scope of Eurocode 2
1.1.2 Scope of Part 1-2 of Eurocode 2 1.2 Normative references 1.3 Assumptions 1.4 Distinctions between principles and application rules 1.5 Definitions 1.6 Symbols
1.6.1 Supplementary symbols to EN 1992-1-1
1.6.2 Supplementary subscripts to EN 1992-1-1
2 Basis of design 2.1 Requirements
2.1.1 General
2.1.2 Nominal fire exposure
2.1.3 Parametric fire exposure 2.2
Actions
2.3
Design values of material properties
2.4
Verification methods 2.4.1 General 2.4.2
Member analysis
2.4.3
Analysis of part of the structure 2.4.4
Global structural analysis
3 Material properties 3.1 General
3.2 Strength and deformation properties at elevated temperatures 3.2.1 General 3.2.2 Concrete
3.2.2.1
Concrete under compression 3.2.2.2
Tensile strength 3.2.3 Reinforcing steel 3.2.4 Prestressing steel 3.3
Thermal and physical properties of concrete with siliceous and calcareous aggregates 3.3.1
Thermal elongation
3.3.2
Specific heat
3.3.3
Thermal conductivity 3.4
Thermal elongation of reinforcing and prestressing steel
4
Design
procedures 4.1
General
4.2
Simplified calculation method 4.2.1
General 4.2.2
Temperature profiles 4.2.3
Reduced cross-section 4.2.4 Strength reduction
4.2.4.1
General



EN 1992-1-2:2004 (E)
3
4.2.4.2
Concrete
4.2.4.3
Steel 4.3 Advanced calculation methods
4.3.1 General
4.3.2 Thermal response
4.3.3 Mechanical response
4.3.4 Validation of advanced calculation models 4.4 Shear, torsion and anchorage 4.5 Spalling
4.5.1
Explosive spalling
4.5.2 Falling off of concrete 4.6 Joints 4.7 Protective layers
5 Tabulated data 5.1
Scope
5.2
General design rules
5.3 Columns
5.3.1 General 5.3.2 Method A for assessing fire resistance of columns 5.3.3 Method B for assessing fire resistance of columns 5.4
Walls 5.4.1
Non load-bearing walls (partitions) 5.4.2
Load-bearing solid walls
5.4.3
Fire walls 5.5
Tensile members
5.6
Beams 5.6.1 General
5.6.2
Simply supported beams
5.6.3
Continuous beams
5.6.4
Beams exposed on all sides
5.7 Slabs 5.7.1
General
5.7.2
Simply supported solid slabs
5.7.3
Continuous solid slabs
5.7.4
Flat slabs
5.7.5
Ribbed slabs
6 High strength concrete (HSC) 6.1 General 6.2 Spalling 6.3 Thermal properties 6.4 Str
...


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