EN 1994-1-2:2005/A1:2014

Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design

Supplementary to Part 1-1. Additional and varied rules to be used for the design of composite structures which are required to avoid premature structural collapse and to limit the spread of fire in the accidental situation of exposure to fire.

Eurocode 4: Bemessung und Konstruktion von Verbundtragwerken aus Stahl und Beton - Teil 1-2: Allgemeine Regeln - Tragwerksbemessung für den Brandfall

(1) Dieser Teil 1-2 der EN 1994 behandelt den Entwurf, die Berechnung und die Bemessung von Verbundtragwerken aus Stahl und Beton für den Brandfall als außergewöhnliche Situation und ist in Verbindung mit EN 1994-1-1 und EN 1991-1-2 anzuwenden. Dieser Teil 1-2 weist lediglich die Abweichungen oder Ergänzungen zu Entwurf, Berechnung und Bemessung bei normalen Temperaturen auf.
(2) Dieser Teil 1-2 der EN 1994 behandelt ausschließlich passive Maßnahmen des Brandschutzes. Aktive Maßnahmen werden nicht abgedeckt.
(3) Dieser Teil 1-2 der EN 1994 gilt für Verbundtragwerke, die aus Gründen des allgemeinen Brandschutzes bestimmte Funktionen im Brandfall erfüllen müssen, indem
   vorzeitiger Einsturz des Tragwerkes (Tragfähigkeit),
   die Ausbreitung des Brandes (Flammen, Brandgase, übermäßige Hitze) über bestimmte Abschnitte hinaus (Raumabschluss)
vermieden werden.
(4) Dieser Teil 1-2 der EN 1994 enthält verbindliche Regeln (i)P und Anwendungsregeln (j) (siehe EN 1991 1 2) für Entwurf, Berechnung und Bemessung von Tragwerken für gegebene Anforderungen unter Berücksichtigung der vorgenannten Funktionen und Sicherheitsniveaus.
(5) Dieser Teil 1-2 der EN 1994 gilt für Tragwerke oder Tragwerksteile, die in den Geltungsbereich von ENV 1994-1-1 fallen und demgemäß entworfen, berechnet und bemessen sind. Dennoch enthält dieser Teil keine Regeln für Verbundbauteile mit vorgespannten Betonelementen.
(6) Bei allen Verbundquerschnitten ist in der Regel die Verdübelung des Längsschubes zwischen Stahl und Beton nach den Regeln von EN 1994-1-1 oder durch Versuche (siehe auch 4.3.4.1.5 und Anhang I) sicherzu¬stellen.
(7) Typische Beispiele von Verbunddecken mit Profilblechen mit oder ohne Bewehrungsstäbe zeigt Bild 1.1.

Eurocode 4 - Calcul des structures mixtes acier-béton - Partie 1-2 : Règles générales - Calcul du comportement au feu

Evrokod 4: Projektiranje sovprežnih konstrukcij iz jekla in betona - 1-2. del: Splošna pravila - Požarnoodporno projektiranje

Dodatni in raznovrstni predpisi, ki se uporabljajo za načrtovanje sovprežnih konstrukcij, potrebnih za preprečevanje prezgodnje porušitve in za omejitev širjenja požara pri nenamerni izpostavljenosti ognju.

General Information

• Status: Published
• Publication Date: 25-Feb-2014
• Withdrawal Date: 27-Feb-2015
• ICS: 13.220.50 - Fire-resistance of building materials and elements
• ICS: 91.010.30 - Technical aspects
• ICS: 91.080.10 - Metal structures
• ICS: 91.080.13 - Steel structures
• ICS: 91.080.40 - Concrete structures
• Technical Committee: CEN/TC 250 - Structural Eurocodes
• Drafting Committee: CEN/TC 250/SC 4 - Eurocode 4: Design of composite steel and concrete structures
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 26-Feb-2014
• Due Date: 23-Aug-2014
• Completion Date: 26-Feb-2014
• 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
• Ref Project: SIST EN 1994-1-2:2006/A1:2014 - Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design

Relations

• Amends: EN 1994-1-2:2005 - Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design
• Effective Date: 19-Sep-2012

Overview

EN 1994-1-2:2005/A1:2014, known as Eurocode 4 - Design of Composite Steel and Concrete Structures - Part 1-2: General Rules - Structural Fire Design, is a crucial European standard published by CEN (European Committee for Standardization). This amendment to EN 1994-1-2:2005 provides essential supplementary rules and modifications aimed at enhancing the fire resistance design of composite steel and concrete structures. It is intended to prevent premature structural collapse and control fire spread during accidental fire exposure.

This standard serves as a vital extension to Part 1-1 of Eurocode 4, addressing special conditions and calculations necessary for the structural integrity of composite elements under fire conditions. By ensuring compliance with EN 1994-1-2:2005/A1:2014, engineers can deliver safer building designs meeting rigorous fire safety requirements.

Key Topics

• Structural Fire Design: Provides specific design rules and calculation methodologies for determining the fire resistance of composite steel and concrete structures.
• Composite Structures: Focuses on the interaction between steel and concrete components under fire exposure, including load-bearing behavior and material performance changes.
• Modification of Design Parameters: Updates the applicable conditions for calculating fire resistance, such as buckling length and relative slenderness, ensuring safer design criteria.
• Concrete Grades & Reinforcement Limits: Defines usable concrete strengths (C20/25 to C40/50) and permissible steel reinforcement percentages (0% to 5%) within fire design models.
• Section Geometries: Addresses suitable cross-sectional dimensions (square or circular, with depth or diameter between 140 mm and 400 mm), ensuring accurate analysis of structural fire behavior.

Applications

• Building Safety Engineering: Enables architects and structural engineers to design composite steel and concrete elements that maintain stability during fire incidents.
• Fire Resistance Certification: Provides the framework for assessing fire resistance ratings up to 120 minutes under standard fire scenarios.
• High-Risk Facilities: Particularly relevant for the design of structures in industrial, commercial, and public buildings requiring stringent fire safety measures.
• Retrofitting and Structural Upgrades: Assists in evaluating existing composite structures’ fire performance and planning necessary reinforcements or modifications.
• Regulatory Compliance: Supports adherence to European fire safety regulations by aligning with harmonized technical standards.

Related Standards

• EN 1994-1-1: Eurocode 4 - Design of Composite Steel and Concrete Structures - Part 1-1: General Rules and Rules for Buildings.
• EN 1991-1-2: Eurocode 1 - Actions on Structures - Part 1-2: General Actions - Actions on Structures Exposed to Fire.
• EN 1993-1-2: Eurocode 3 - Design of Steel Structures - Part 1-2: Structural Fire Design.
• EN 1992-1-2: Eurocode 2 - Design of Concrete Structures - Part 1-2: Structural Fire Design.
• CEN/TC 250: The technical committee responsible for the development and maintenance of structural Eurocodes, including fire design regulations.

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By incorporating EN 1994-1-2:2005/A1:2014 into structural design practice, engineers ensure the resilience and safety of composite steel and concrete buildings under fire conditions, enhancing overall public safety and structural reliability. This standard represents a cornerstone for fire-resistant construction aligned with European best practices and regulatory frameworks.

Standards Content (Sample)

SLOVENSKI STANDARD
01-maj-2014
Evrokod 4: Projektiranje sovprežnih konstrukcij iz jekla in betona - 1-2. del:
Splošna pravila - Požarnoodporno projektiranje
Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules
- Structural fire design
Eurocode 4: Bemessung und Konstruktion von Verbundtragwerken aus Stahl und Beton
- Teil 1-2: Allgemeine Regeln Tragwerksbemessung für den Brandfall
Eurocode 4 - Calcul des structures mixtes acier-béton - Partie 1-2: Règles générales -
Calcul du comportement au feu
Ta slovenski standard je istoveten z: EN 1994-1-2:2005/A1:2014
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.010.30 7HKQLþQLYLGLNL Technical aspects
91.080.10 Kovinske konstrukcije Metal structures
91.080.40 Betonske konstrukcije Concrete structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 1994-1-2:2005/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2014
ICS 13.220.50; 91.010.30; 91.080.10; 91.080.40
English Version
Eurocode 4 - Design of composite steel and concrete structures
- Part 1-2: General rules - Structural fire design
Eurocode 4 - Calcul des structures mixtes acier-béton - Eurocode 4: Bemessung und Konstruktion von
Partie 1-2 : Règles générales - Calcul du comportement au Verbundtragwerken aus Stahl und Beton - Teil 1-2:
feu Allgemeine Regeln - Tragwerksbemessung für den
Brandfall
This amendment A1 modifies the European Standard EN 1994-1-2:2005; it was approved by CEN on 17 November 2013.

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. Up-to-date lists and bibliographical references concerning such
national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This amendment 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
...