DIN EN 1994-1-2-2010 Eurocode 4 Design of composite steel and concrete structures - Part 1-2 General rules - Structural fire design German version EN 1994-1-2 2005 + AC 2008《欧洲规范4 .pdf

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1、December 2010 Translation by DIN-Sprachendienst.English price group 32No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I

2、CS 13.220.50; 91.010.30; 91.080.10; 91.080.40!$lsK“1738040www.din.deDDIN EN 1994-1-2Eurocode 4: Design of composite steel and concrete structures Part 1-2: General rules Structural fire design(includes Corrigendum AC:2008)English translation of DIN EN 1994-1-2:2010-12Eurocode 4: Bemessung und Konstr

3、uktion von Verbundtragwerken aus Stahl und Beton Teil 1-2: Allgemeine Regeln Tragwerksbemessung fr den Brandfall(enthlt Berichtigung AC:2008)Englische bersetzung von DIN EN 1994-1-2:2010-12Eurocode 4: Calcul des structures mixtes acier-bton Partie 1-2: Rgles gnrales Calcul du comportement au feu(Cor

4、rigendum AC:2008 inclus)Traduction anglaise de DIN EN 1994-1-2:2010-12SupersedesDIN EN 1994-1-2:2006-11 andDIN EN 1994-1-2www.beuth.deDocument comprises 1 pagesIn case of doubt, the German-language original shall be considered authoritative.Corrigendum 1:2008-11110 .11 2DIN EN 1994-1-2:2010-12 2 A c

5、omma is used as the decimal marker. National foreword This standard has been prepared by Technical Committee CEN/TC 250 “Structural Eurocodes” (Secretariat: BSI, United Kingdom). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering

6、Standards Committee), Working Committee NA 005-52-22 AA Konstruktiver baulicher Brandschutz. This European Standard is part of a series of standards dealing with structural design (Eurocodes) which are intended to be used as a “package”. In Guidance Paper L on the application and use of Eurocodes, i

7、ssued by the EU Commission, reference is made to transitional periods for the introduction of the Eurocodes in the Member states. The transitional periods given in the Foreword of this standard correlate approximately with those given in the Guidance Paper. In Germany, this standard is to be applied

8、 in conjunction with the National Annex. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. DIN and/or DKE shall not be held responsible for identifying any or all such patent rights. Depending on the importance of the individual cla

9、uses, this standard distinguishes between principles and application rules (see also subclause 1.4). Principles are identified by the letter “P” after the number of the clause (e.g. (1)P). All clauses not marked as principles are application rules. The start and finish of text introduced or altered

10、by amendment is indicated in the text by tags . Amendments This standard differs from DIN V ENV 1994-1-2:1997-06 as follows: a) the prestandard status has been changed to that of a full standard; Compared with DIN EN 1994-1-2:2006-11 and DIN EN 1994-1-2 Corrigendum 1:2008-11, the following correctio

11、ns have been made: a) this standard is the consolidated version of the previous 2005 edition with Corrigendum 1:2008; b) the standard has been editorially revised. Previous editions DIN V ENV 1994-1-2: 1997-06 DIN EN 1994-1-2: 2006-11 DIN EN 1994-1-2 Corrigendum 1: 2008-11 b) the comments received f

12、rom the national standards bodies of CEN have been incorporated and the text of the standard has been completely revised. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1994-1-2 August 2005 + AC July 2008 ICS 13.220.50; 91.010.30; 91.080.10; 91.080.40 English version Eurocode 4: Design of comp

13、osite steel and concrete structures Part 1-2: General rules Structural fire design Eurocode 4: Calcul des structures mixtes acier-bton Partie 1-2: Rgles gnrales Calcul du comportement au feu Eurocode 4: Bemessung und Konstruktion von Verbundtragwerken aus Stahl und Beton Teil 1-2: Allgemeine Regeln

14、Tragwerksbemessung fr den Brandfall EN 1994-1-2:2005 was approved by CEN on 2004-11-04 and Amendment AC:200 on 2008-07-30. 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 with

15、out any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made

16、 by translation under the responsibility of a CEN member into its own language and notified to the 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,

17、France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE

18、 FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2008 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1994-1-2:2005 + AC:2008 E8Background of the Eurocode programme5 Status and field of application of Eurocodes .6 N

19、ational Standards implementing Eurocodes .6 Links between Eurocodes and harmonised technical specifications (ENs and ETAs) for products.7 Additional information specific for EN 1994-1-2 7 National annex for EN 1994-1-2 10 Section 1 General .11 1.1 Scope 11 1.2 Normative references13 1.3 Assumptions1

20、5 1.4 Distinction between Principles and Application Rules15 1.5 Definitions .15 1.5.1 Special terms relating to design in general .15 1.5.2 Terms relating to material and products properties.16 1.5.3 Terms relating to heat transfer analysis 16 1.5.4 Terms relating to mechanical behaviour analysis .

21、16 1.6 Symbols 16 Section 2 Basis of design26 2.1 Requirements26 2.1.1 Basic requirements 26 2.1.2 Nominal fire exposure26 2.1.3 Parametric fire exposure27 2.2 Actions 27 2.3 Design values of material properties 27 2.4 Verification methods .28 2.4.1 General 28 2.4.2 Member analysis29 2.4.3 Analysis

22、of part of the structure .30 2.4.4 Global structural analysis.31 Section 3 Material properties 31 3.1 General .31 3.2 Mechanical properties.31 3.2.1 Strength and deformation properties of structural steel 31 3.2.2 Strength and deformation properties of concrete 33 3.2.3 Reinforcing steels 35 3.3 The

23、rmal properties36 3.3.1 Structural and reinforcing steels 36 3.3.2 Normal weight concrete.39 3.3.3 Light weight concrete.41 3.3.4 Fire protection materials 42 3.4 Density 42 2 DIN EN 1994-1-2:2010-12 EN 1994-1-2:2005 + AC:2008 (E) Contents Page Foreword to EN 1994-1-2:2005 + AC:2008 5 Section 4 Desi

24、gn procedures 43 4.1 Introduction .43 4.2 Tabulated data 44 4.2.1 Scope of application 44 4.2.2 Composite beam comprising steel beam with partial concrete encasement 45 4.2.3 Composite columns .47 4.3 Simple Calculation Models51 4.3.1 General rules for composite slabs and composite beams 51 4.3.2 Un

25、protected composite slabs 51 4.3.3 Protected composite slabs.52 4.3.4 Composite beams53 4.3.5 Composite columns .61 4.4 Advanced calculation models .64 4.4.1 Basis of analysis 64 4.4.2 Thermal response65 4.4.3 Mechanical response.65 4.4.4 Validation of advanced calculation models65 Section 5 Constru

26、ctional details.66 5.1 Introduction .66 5.2 Composite beams .66 5.3 Composite columns 67 5.3.1 Composite columns with partially encased steel sections 67 5.3.2 Composite columns with concrete filled hollow sections.67 5.4 Connections between composite beams and columns 68 5.4.1 General 68 5.4.2 Conn

27、ections between composite beams and composite columns with steel sections encased in concrete.69 5.4.3 Connections between composite beams and composite columns with partially encased steel sections. 70 5.4.4 Connections between composite beams and composite columns with concrete filled hollow secti

28、ons 70 structural steels 72 D.1 Fire resistance according to thermal insulation 79 D.2 Calculation of the sagging moment resistance Mfi,Rd+80 D.3 Calculation of the hogging moment resistance Mfi,Rd- 82 D.4 Effective thickness of a composite slab 84 D.5 Field of application 85 3 DIN EN 1994-1-2:2010-

29、12 EN 1994-1-2:2005 + AC:2008 (E) Annex A (informative) Stress-strain relationships at elevated temperatures for Annex B (informative) Stress-strain relationships at elevated temperatures for concrete with siliceous aggregate 75 Annex C (informative) Concrete stress-strain relationships adapted to n

30、atural fires with a decreasing heating branch for use in advanced calculation models 77 Annex D (informative) Model for the calculation of the fire resistance of unprotected composite slabs exposed to fire beneath the slab according to the standard temperature-time curve 79 4 DIN EN 1994-1-2:2010-12

31、 EN 1994-1-2:2005 + AC:2008 (E) Annex E (informative) Model for the calculation of the sagging and hogging moment resistances of a steel beam connected to a concrete slab and exposed to fire beneath the concrete slab. 86 E.1 Calculation of the sagging moment resistance Mfi,Rd+86 E.2 Calculation of t

32、he hogging moment resistance Mfi,Rd- at an intermediate support (or at a restraining support) 87 E.3 Local resistance at supports88 E.4 Vertical shear resistance89 Annex F (informative) Model for the calculation of the sagging and hogging moment resistances of a partially encased steel beam connecte

33、d to a concrete slab and exposed to fire beneath the concrete slab according to the standard temperature-time curve. 90 F.1 Reduced cross-section for sagging moment resistance Mfi,Rd+90 F.2 Reduced cross-section for hogging moment resistance Mfi,Rd- 94 F.3 Field of application 95 Annex G (informativ

34、e) Balanced summation model for the calculation of the fire resistance of composite columns with partially encased steel sections, for bending around the weak axis, exposed to fire all around the column according to the standard temperature-time curve 96 G.1 Introduction 96 G.2 Flanges of the steel

35、profile 97 G.3 Web of the steel profile 97 G.4 Concrete 98 G.5 Reinforcing bars 99 G.6 Calculation of the axial buckling load at elevated temperatures 100 G.7 Eccentricity of loading 101 G.8 Field of application 101 Annex H (informative) Simple calculation model for concrete filled hollow sections e

36、xposed to fire all around the column according to the standard temperature-time curve. 104 H.1 Introduction 104 H.2 Temperature distribution 104 H.3 Design axial buckling load at elevated temperature 104 H.4 Eccentricity of loading 105 H.5 Field of application 105 Annex I (informative) Planning and

37、evaluation of experimental models 109 I.1 Introduction 109 I.2 Test for global assessment 109 I.3 Test for partial information 109 Background of the Eurocode programme In 1975, the Commission of the European Community decided on an action programme in the field of construction, based on article 95 o

38、f the Treaty. The objective of the programme was the elimination of technical obstacles to trade and the harmonisation of technical specifications. Within this action programme, the Commission took the initiative to establish a set of harmonised technical rules for the design of construction works w

39、hich, in a first stage, would serve as an alternative to the national rules in force in the Member States and, ultimately, would replace them. For fifteen years, the Commission, with the help of a Steering Committee with Representatives of Member States, conducted the development of the Eurocodes pr

40、ogramme, which led to the first generation of European codes in the 1980s. In 1989, the Commission and the Member States of the EU and EFTA decided, on the basis of an agreement1between the Commission and CEN, to transfer the preparation and the publication of the Eurocodes to the CEN through a seri

41、es of Mandates, in order to provide them with a future status of European Standard (EN). This links de facto the Eurocodes with the provisions of all the Councils Directives and/or Commissions Decisions dealing with European standards (e.g. the Council Directive 89/106/EEC on construction products C

42、PD - and Council Directives 93/37/EEC, 92/50/EEC and 89/440/EEC on public works and services and equivalent EFTA Directives initiated in pursuit of setting up the internal market). The Structural Eurocode programme comprises the following standards generally consisting of a number of Parts: EN1990,

43、Eurocode : Basis of structural design EN1991, Eurocode 1: Actions on structures EN1992, Eurocode 2: Design of concrete structures EN1993, Eurocode 3: Design of steel structures 1Agreement between the Commission of the European Communities and the European Committee for Standardisation (CEN) concerni

44、ng the work on EUROCODES for the design of building and civil engineering works (BC/CEN/03/89). This document (EN 1994-1-2:2005 + AC:2008) 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

45、 Eurocodes. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by February 2006, and conflicting national standards shall be withdrawn at the latest by March 2010. This document supersedes ENV 1994-1-2:

46、1994. According to the CEN-CENELEC Internal Regulations, the National Standard Organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ir

47、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. 5 DIN EN 1994-1-2:2010-12 EN 1994-1-2:2005 + AC:2008 (E) Foreword to EN 1994-1-2:2005 + AC:2008 EN1994, Eurocode 4: Design of composi

48、te steel and concrete structures EN1995, Eurocode 5: Design of timber structures EN1996, Eurocode 6: Design of masonry structures EN1997, Eurocode 7: Geotechnical design EN1998, Eurocode 8: Design of structures for earthquake resistance EN1999, Eurocode 9: Design of aluminium structures Eurocode sta

49、ndards recognise the responsibility of regulatory authorities in each Member State and have safeguarded their right to determine values related to regulatory safety matters at national level where these continue to vary from State to State. Status and field of application of Eurocodes The Member States of the EU and EFTA recognise that EUROCODES serve as reference documents for the following purposes : as a means to prove compliance of building and civil engineering works with the essential requ