1、BRITISH STANDARDBS EN 1991-1-7:2006IncorporatingcorrigendumFebruary 2010Eurocode 1 Actions on structures Part 1-7: General actions Accidental actionsICS 91.010.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g
2、44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN +A1:2014Incorporating corrigendum February 2010 BS 5400-2:2006 BS EN 1991-1-7:2006+A1:2014ISBN 978 0 580 83725 8Amendments/corrigenda issued since publicationDate Comments30 April 2010 Implementation of CEN corrigendum February 2010
3、31 July 2014 Implementation of CEN amendment A1:2014This British Standard was published under the authority of the Standards Policy andStrategy Committee on 29 September 2006 The British Standards Institution 2014. Published by BSI Standards Limited 2014National forewordThis British Standard is the
4、UK implementation of EN 1991-1-7:2006+A1:2014, incorporating corrigendum February 2010. It supersedes BS EN 1991-1-7:2006, which is withdrawn.The start and finish of text introduced or altered by corrigendum is indicated in the text by tags. Text altered by CEN corrigendum February is indicated in t
5、he text by .The start and finish of text introduced or altered by amendment is indicated in the text by tags. Tags indicating changes to CEN text carry the number of the CEN amendment. For example, text altered by CEN amendment A1 is indicated by .CEN amendment A1:2014 introduces a revised informati
6、ve Annex, Annex D. The UK committee noted technical errors in subclause D.4 regarding explosions in ducts. Annex D of BS EN 1991-1-7:2006+A1:2014 can therefore be used only if it is complemented by further guidance available in the forthcoming PD 6688-1-7.The structural Eurocodes are divided into pa
7、ckages by grouping Eurocodes for each of the main materials, concrete, steel, composite concrete and steel, timber, masonry and aluminium, this is to enable a common date of withdrawal (DOW) for all the relevant parts that are needed for a particular design. The conflicting national standards will b
8、e withdrawn at the end of the coexistence period, after all the EN Eurocodes of a package are available.In the UK, the following national standards are superseded by the Eurocode 1 series. These standards will be withdrawn on a date to be announced.BS 5400-1:1998, BS 5400-2:2006BS 6399-3:1998BS 6399
9、-2:1997, BS 5400-2:2006BS 5400-2:2006BS EN 1991-1-7:2006+A1:2014i The British Standards Institution 2014The UK participation in its preparation was entrusted by Technical Committee B/525, Building and civil engineering structures, to Subcommittee B/525/1, Actions (loadings) and basis of design.A lis
10、t of organizations represented on this subcommittee can be obtained on request to its secretary.Where a normative part of this EN allows for a choice to be made at the national level, the range and possible choice will be given in the normative text, and a Note will qualify it as a Nationally Determ
11、ined Parameter (NDP). NDPs can be a specific value for a factor, a specific level or class, a particular method or a particular application rule if several are proposed in the EN.To enable BS EN 1991-1-7:2006+A1:2014 to be used in the UK, the latest version of the NA to this Standard containing thes
12、e NDPs should also be used. At the time of publication, it is NA+A1:2014 to BS EN 1991-1-7:2006+A1:2014.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity
13、 from legal obligations.blankiiEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 1991-1-7July 2006ICS 91.010.30 Supersedes ENV 1991-2-7:1998Incorporating corrigendum February 2010English VersionEurocode 1 - Actions on structures - Part 1-7: General actions -Accidental actionsEurocode 1 - Actions sur
14、 les structures Partie 1-7: Actionsgnrales - Actions accidentellesEurocode 1 - Einwirkungen auf Tragwerke - Teil 1-7:Allgemeine Einwirkungen - AuergewhnlicheEinwirkungenThis European Standard was approved by CEN on 9 January 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulati
15、ons which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European
16、 Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national st
17、andards 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, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EURO
18、PEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2006 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1991-1-7:2006: EEN 1991-1-7:200
19、6+A1June 2014Contents Page FOREWORD.4 BACKGROUND OF THE EUROCODE PROGRAMME4 STATUS AND FIELD OF APPLICATION OF EUROCODES.5 NATIONAL STANDARDS IMPLEMENTING EUROCODES5 LINKS BETWEEN EUROCODES AND HARMONISED TECHNICAL SPECIFICATIONS (ENS AND ETAS) FOR PRODUCTS.6 ADDITIONAL INFORMATION SPECIFIC TO EN 19
20、91-1-76 NATIONAL ANNEX .6 SECTION 1 GENERAL.9 1.1 SCOPE9 1.2 NORMATIVE REFERENCES9 1.3 ASSUMPTIONS10 1.4 DISTINCTION BETWEEN PRINCIPLES AND APPLICATION RULES.10 1.5 TERMS AND DEFINITIONS.10 1.6 SYMBOLS.12 SECTION 2 CLASSIFICATION OF ACTIONS.14 SECTION 3 DESIGN SITUATIONS15 3.1 GENERAL.15 3.2 ACCIDEN
21、TAL DESIGN SITUATIONS - STRATEGIES FOR IDENTIFIED ACCIDENTAL ACTIONS16 3.3 ACCIDENTAL DESIGN SITUATIONS STRATEGIES FOR LIMITING THE EXTENT OF LOCALISED FAILURE.17 3.4 ACCIDENTAL DESIGN SITUATIONS USE OF CONSEQUENCE CLASSES17 SECTION 4 IMPACT19 4.1 FIELD OF APPLICATION.19 4.2 REPRESENTATION OF ACTION
22、S.19 4.3 ACCIDENTAL ACTIONS CAUSED BY ROAD VEHICLES 20 4.3.1 Impact on supporting substructures20 4.3.2 Impact on superstructures.22 4.4 ACCIDENTAL ACTIONS CAUSED BY FORK LIFT TRUCKS 24 4.5 ACCIDENTAL ACTIONS CAUSED BY DERAILED RAIL TRAFFIC UNDER OR ADJACENT TO STRUCTURES .25 4.5.1 Structures spanni
23、ng across or alongside operational railway lines.25 4.5.2 Structures located in areas beyond track ends27 4.6 ACCIDENTAL ACTIONS CAUSED BY SHIP TRAFFIC.27 4.6.1 General .27 4.6.2 Impact from river and canal traffic.28 4.6.3 Impact from seagoing vessels29 4.7 ACCIDENTAL ACTIONS CAUSED BY HELICOPTERS
24、30 SECTION 5 INTERNAL EXPLOSIONS.31 5.1 FIELD OF APPLICATION.31 5.2 REPRESENTATION OF ACTION.31 5.3 PRINCIPLES FOR DESIGN.32 ANNEX A (INFORMATIVE) DESIGN FOR CONSEQUENCES OF LOCALISED FAILURE IN BUILDINGS FROM AN UNSPECIFIED CAUSE.33 A.1 SCOPE AND FIELD OF APPLICATION .33 A.2 INTRODUCTION .33 A.3 CO
25、NSEQUENCES CLASSES OF BUILDINGS 33 A.4 RECOMMENDED STRATEGIES34 A.5 EFFECTIVE HORIZONTAL TIES36 BS EN 1991-1-7:2006EN 1991-1-7:2006 (E)Page 2Page 2BS EN 1991-1-7:2006+A1:2014EN 1991-1-7:2006+A1:2014 (E)677A.5.1 Framed structures.36 A.5.2 Load-bearing wall construction37 A.6 EFFECTIVE VERTICAL TIES39
26、 A.7 NOMINAL SECTION OF LOAD-BEARING WALL39 A.8 KEY ELEMENTS.39 ANNEX B (INFORMATIVE) INFORMATION ON RISK ASSESSMENT.40 B.1 INTRODUCTION40 B.2 DEFINITIONS .41 B.3 DESCRIPTION OF THE SCOPE OF A RISK ANALYSIS41 B.4 METHODS OF RISK ANALYSIS 42 B.4.1 Qualitative risk analysis.42 B.4.2 Quantitative risk
27、analysis.42 B.5 RISK ACCEPTANCE AND MITIGATING MEASURES.43 B.6 RISK MITIGATING MEASURES 45 B.7 MODIFICATION45 B.8 COMMUNICATION OF RESULTS AND CONCLUSIONS45 B.9 APPLICATIONS TO BUILDINGS AND CIVIL ENGINEERING STRUCTURES .46 B.9.1 General.46 B.9.2 Structural risk analysis.47 B.9.3 Modelling of risks
28、from extreme load events48 B.9.4 Guidance for application of risk analysis related to impact from rail traffic.51 ANNEX C (INFORMATIVE) DYNAMIC DESIGN FOR IMPACT.53 C.1 GENERAL 53 C.2 IMPACT DYNAMICS53 C.2.1 Hard Impact .53 C.2.2 Soft Impact54 C.3 IMPACT FROM ABERRANT ROAD VEHICLES55 C.4 IMPACT BY S
29、HIPS.58 C.4.1 Ship impact on inland waterways.58 C.4.2 Ship impact for sea waterways.59 C.4.3 Advanced ship impact analysis for inland waterways58 C.4.4 Advanced ship impact analysis for sea waterways.62 ANNEX D (INFORMATIVE) INTERNAL EXPLOSIONS63 D.1 DUST EXPLOSIONS IN ROOMS, VESSELS AND BUNKERS63
30、D.2 NATURAL GAS EXPLOSIONS.65 D.3 EXPLOSIONS IN ROAD AND RAIL TUNNELS.65 BS EN 1991-1-7:2006Page 3EN 1991-1-7:2006 (E)Page 3BS EN 1991-1-7:2006+A1:2014EN 1991-1-7:2006+A1:2014 (E)D.1 Natural gas explosioNs .63D.2 Dust explosioNs iN rooms, vessels aND buNkers 63D.3 explosioNs iN roaD aND rail tuNNels
31、 .65D.4 Dust, gas aND vapour/air explosioNs iN eNergy Ducts .66D.4.1 General .66D.4.2 Vent area .67D.4.3 Critical distances 67D.4.4 Design pressure 68Foreword This European St andard (EN 1991-1-7:2006) has been prepared on behalf of Technical Committee CEN/TC250 “Structural Eurocodes”, the Secretari
32、at of which is held by BSI. CEN/TC 250 is responsible for all Structural Eurocodes. This European Standard supersedes ENV 1991-2-7:1998. 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 January 200
33、7 and conflicting national standards shall be withdrawn at the latest by March 2010. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Es
34、tonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Background of the Eurocode programme In 1975, the Commission of the
35、 European Community decided on an action programme in the field of construction, based on Article 95 of 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
36、the initiative to establish a set of harmonised technical rules for the design of construction works which, 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 S
37、teering Committee with Representatives of Member States, conducted the development of the Eurocodes programme, 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 Commissi
38、on and CEN, to transfer the preparation and the publication of the Eurocodes to CEN through a series 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
39、 dealing with European standards (e.g. the Council Directive 89/106/EEC on construction products CPD - 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 Euroco
40、de programme comprises the following standards generally consisting of a number of parts: EN 1990 Eurocode Basis of structural design EN 1991 Eurocode 1: Actions on structures EN 1992 Eurocode 2: Design of concrete structures EN 1993 Eurocode 3: Design of steel structures 1Agreement between the Comm
41、ission of the European Communities and the European Committee for Standardisation (CEN) concerning the work on Eurocodes for the design of building and civil engineering works (BC/CEN/03/89). BS EN 1991-1-7:2006EN 1991-1-7:2006 (E)Page 4Foreword This European St andard (EN 1991-1-7:2006) has been pr
42、epared on behalf of Technical Committee CEN/TC250 “Structural Eurocodes”, the Secretariat of which is held by BSI. CEN/TC 250 is responsible for all Structural Eurocodes. This European Standard supersedes ENV 1991-2-7:1998. This European Standard shall be given the status of a national standard, eit
43、her by publication of an identical text or by endorsement, at the latest by January 2007 and conflicting national standards shall be withdrawn at the latest by March 2010. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lit huania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
