1、December 2010 Translation by DIN-Sprachendienst.English price group 18No 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 91.010.30!$lhd“1736965www.din.deDDIN EN 1991-1-3Eurocode 1: Actions on structures Part 1-3: General actions Snow loads(includes Corrigendum AC:2009)English translation of DIN EN 1991-1-3:2010-12Eurocode 1: Einwirkungen auf Tragwerke Teil 1-3: Allgemeine Einwirkungen, Schneelasten(enthlt Berichtig
3、ung AC:2009)Englische bersetzung von DIN EN 1991-1-3:2010-12Eurocode 1: Actions sur les structures Partie 1-3: Actions gnrales Charges de neige(Corrigendum AC:2009 inclus)Traduction anglaise de DIN EN 1991-1-3:2010-12Supersedes DIN EN 1991-1-3:2004-09;together with DIN EN 1991-1-3/NA:2010-12, supers
4、edes DIN 1055-5:2005-07;supersedes DIN EN 1991-1-3 Corrigendum 1:2009-09Supersedes: see belowwww.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered authoritative.580 .11 2DIN EN 1991-1-3:2010-12 2 A comma is used as the decimal marker. National forewor
5、d 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 Standards Committee), Working Committee NA 005-51-02
6、 AA Einwirkungen auf Bauten (Sp CEN/TC 250/SC 1). This document includes Corrigendum AC:2009, approved by CEN on 11 March 2009. 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 ap
7、plication and use of Eurocodes, issued by the EU Commission, reference is made to compulsory transitional periods for the introduction of the Eurocodes in the member states. The transitional periods are given in the Foreword of this standard. In Germany, this standard is to be applied in conjunction
8、 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. The start and finish of text introduced or altered by amendment
9、is indicated in the text by tags . Amendments This standard differs from DIN V ENV 1991-1-3:1996-01 as follows: a) the prestandard status has been changed to that of a full standard; b) the comments received from the national standards bodies have been taken into account and the text of the standard
10、 has been completely revised. Compared with DIN EN 1991-1-3:2004-09, DIN EN 1991-1-3 Corrigendum 1:2009-09 and DIN 1055-5:2005-07, the following corrections have been made: a) the standard has been based on European design rules; b) superseding notes have been corrected; c) this standard is the cons
11、olidated version of the previous 2003 edition with Corrigendum AC:200 ; d) the standard has been editorially revised. Previous editions DIN 1055: 1936xx-12, 1975-06 DIN 1055-5: 2005-07 DIN 1055-5/A1: 1994-04 DIN V EN V 1991-1-3: 1996-01 DIN EN 1991-1-3: 2004-09 DIN EN 1991-1-3 Corrigendum 1: 2009-09
12、 9EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1991-1-3 July 2003 + AC March 2009 ICS 91.010.30 English version Eurocode 1: Actions on structures Part 1-3: General actions Snow loads Eurocode 1: Actions sur les structures Partie 1-3: Actions gnrales Charges de neige Eurocode 1: Einwirkungen
13、auf Tragwerke Teil 1-3: Allgemeine Einwirkungen Schneelasten EN 1991-1-3:2003 was approved by CEN on 2002-10-09 and Corrigendum AC:2009 on 2009-03-11. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
14、 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 Management Centre or to any CEN member. The European Standards exist in three official versions (English, French, German). A versio
15、n in any other language made 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,
16、 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. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORM
17、ALISATIONEUROPISCHES KOMITEE FR NORMUNG 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1991-1-3:2003 + AC:2009 EManagement Centre: Avenue Marnix 17, B-1000 Brussels CONTENTS PageForeword to EN 1991-1-3:2003 + AC:2009 41. Sect
18、ion 1 General 81.1. Scope 81.2. Normative references 91.3. Assumptions 91.4. Distinction between Principles and Application Rules 91.5. Design assisted by testing 91.6. Terms and Definitions 101.7. Symbols 112. Section 2 Classification of actions 133. Section 3 Design situations 143.1. General 143.2
19、. Normal conditions 143.3. Exceptional conditions 144. Section 4 Snow load on the ground 164.1. Characteristic values 164.2. Other representative values 164.3. Treatment of exceptional snow loads on the ground 175. Section 5 Snow load on roofs 175.1. Nature of the load 175.2. Load arrangements 185.3
20、. Roof shape coefficients 205.3.1. General 205.3.2. Monopitch roofs 215.3.3. Pitched roofs 225.3.4. Multi-span roofs 235.3.5. Cylindrical roofs 245.3.6. Roof abutting and close to taller construction works256. Section 6 Local effects 286.1. General 286.2. Drifting at projections and obstructions 286
21、.3. Snow overhanging the edge of a roof 296.4. Snow loads on snowguards and other obstacles 30DIN EN 1991-1-3:2010-12 EN 1991-1-3:2003 + AC:2009 (E) 2 ANNEX A 31Design situations and load arrangements to be used for differentlocations 31ANNEX B 33Snow load shape coefficients for exceptional snow dri
22、fts 33ANNEX C 38European Ground Snow Load Maps 38ANNEX D 53Adjustment of the ground snow load according to return period 53ANNEX E 55Bulk weight density of snow 55Bibliography 56DIN EN 1991-1-3:2010-12 EN 1991-1-3:2003 + AC:2009 (E) 3 Background of the Eurocode programmeIn 1975, the Commission of th
23、e European Community decided on an actionprogramme in the field of construction, based on article 95 of the Treaty. Theobjective of the programme was the elimination of technical obstacles to tradeand the harmonisation of technical specifications.Within this action programme, the Commission took the
24、 initiative to establish aset of harmonised technical rules for the design of construction works which, ina first stage, would serve as an alternative to the national rules in force in theMember States and, ultimately, would replace them.For fifteen years, the Commission, with the help of a Steering
25、 Committee withRepresentatives of Member States, conducted the development of theEurocodes programme, which led to the first generation of European codes inthe 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,
26、to transferthe preparation and the publication of the Eurocodes to the CEN through aseries of Mandates, in order to provide them with a future status of EuropeanStandard (EN). This links de facto the Eurocodes with the provisions of all theCouncils Directives and/or Commissions Decisions dealing wit
27、h European1Agreement between the Commission 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).Foreword to EN 1991-1-3:2003 + AC:2009 DIN EN 1991-1-3:2010-12 EN 1991-1-
28、3:2003 + AC:2009 (E) 4 This document (EN 1991-1-3:2003 + AC:2009) has been prepared by Technical Committee CEN/TC 250 “Structural Eurocodes”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text o
29、r by endorsement, at the latest by January 2004, and conflicting national standards shall be withdrawn at the latest by March 2010. This document supersedes ENV 1991-2-3:1995. CEN/TC 250 is responsible for all Structural Eurocodes. Annexes A and B are normative, Annexes C, D and E are informative. A
30、ccording to the CEN/CENELEC Internal Regulations, the national standards organizations 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, Ireland,
31、 Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. standards (e.g. the Council Directive 89/106/EEC on construction products andCouncil Directives 93/37/EEC, 92/50/EEC and 89/440/EEC on publ
32、ic worksand services and equivalent EFTA Directives initiated in pursuit of setting upthe internal market).The Structural Eurocode programme comprises the following standardsgenerally consisting of a number of Parts:EN 1990 Eurocode: Basis of Structural DesignEN 1991 Eurocode 1: Actions on structure
33、sEN 1992 Eurocode 2: Design of concrete structuresEN 1993 Eurocode 3: Design of steel structuresEN 1994 Eurocode 4: Design of composite steel and concretestructuresEN 1995 Eurocode 5: Design of timber structuresEN 1996 Eurocode 6: Design of masonry structuresEN 1997 Eurocode 7: Geotechnical designEN
34、 1998 Eurocode 8: Design of structures for earthquake resistanceEN 1999 Eurocode 9: Design of aluminium structuresEurocode standards recognise the responsibility of regulatory authorities ineach Member State and have safeguarded their right to determine valuesrelated to regulatory safety matters at
35、national level where these continue tovary from State to State.Status and field of application of EurocodesThe Member States of the EU and EFTA recognise that EUROCODES serveas reference documents for the following purposes : as a means to prove compliance of building and civil engineering works wit
36、hthe essential requirements of Council Directive 89/106/EEC, particularlyEssential Requirement N1 Mechanical resistance and stability andEssential Requirement N2 Safety in case of fire ; as a basis for specifying contracts for construction works and relatedengineering services ; as a framework for d
37、rawing up harmonised technical specifications forconstruction products (ENs and ETAs)The Eurocodes, as far as they concern the construction works themselves,have a direct relationship with the Interpretative Documents2referred to inArticle 12 of the CPD, although they are of a different nature from
38、harmonisedproduct standards3. Therefore, technical aspects arising from the Eurocodes2According to Art. 3.3 of the CPD, the essential requirements (ERs) shall be given concrete form in interpretative documents forthe creation of the necessary links between the essential requirements and the mandates
39、 for hENs and ETAGs/ETAs.3According to Art. 12 of the CPD the interpretative documents shall :a) give concrete form to the essential requirements by harmonising the terminology and the technical bases and indicating classes or levelsfor each requirement where necessary ;b) indicate methods of correl
40、ating these classes or levels of requirement with the technical specifications, e.g. methods of calculation and ofproof, technical rules for project design, etc. ;c) serve as a reference for the establishment of harmonised standards and guidelines for European technical approvals.The Eurocodes, de f
41、acto, play a similar role in the field of the ER 1 and a part of ER 2.DIN EN 1991-1-3:2010-12 EN 1991-1-3:2003 + AC:2009 (E) 5 work need to be adequately considered by CEN Technical Committees and/orEOTA Working Groups working on product standards with a view to achievinga full compatibility of thes
42、e technical specifications with the Eurocodes.The Eurocode standards provide common structural design rules for everydayuse for the design of whole structures and component products of both atraditional and an innovative nature. Unusual forms of construction or designconditions are not specifically
43、covered and additional expert consideration willbe required by the designer in such cases.National Standards implementing EurocodesThe National Standards implementing Eurocodes will comprise the full text ofthe Eurocode (including any annexes), as published by CEN, which may bepreceded by a National
44、 title page and National foreword, and may be followedby a National Annex.The National Annex may only contain information on those parameters whichare left open in the Eurocode for national choice, known as NationallyDetermined Parameters, to be used for the design of buildings and civilengineering
45、works to be constructed in the country concerned, i.e. : values for partial factors and/or classes where alternatives are given in theEurocode, values to be used where a symbol only is given in the Eurocode, country specific data (geographical, climatic etc.), e.g. snow map, the procedure to be used
46、 where alternative procedures are given in theEurocode.It may also contain decisions on the application of informative annexes, references to non-contradictory complementary information to assist the userto apply the Eurocode.Links between Eurocodes and harmonised technical specifications (ENsand ET
47、As) for productsThere is a need for consistency between the harmonised technicalspecifications for construction products and the technical rules for works4.Furthermore, all the information accompanying the CE Marking of theconstruction products which refer to Eurocodes should clearly mention whichNa
48、tionally Determined Parameters have been taken into account.Introduction - Additional information specific for EN 1991-1-3EN 1991 1-3 gives design guidance and actions from snow for the structuraldesign of buildings and civil engineering works.4see Art.3.3 and Art.12 of the CPD, as well as clauses 4
49、.2, 4.3.1, 4.3.2 and 5.2 of ID 1.DIN EN 1991-1-3:2010-12 EN 1991-1-3:2003 + AC:2009 (E) 6 EN 1991 1-3 is intended for clients, designers, contractors and publicauthorities.EN 1991 1-3 is intended to be used with EN 1990:2002, the other Parts of EN1991 and EN 1992- EN 1999 for the design of structures.National Annex for EN1991-1-3This standard gives alternative procedures, values and recommendations forclasses with notes indicating where national choices may have to be made.Therefore the National Standard implementing EN 1991-1-3 sh
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