1、July 2007DEUTSCHE NORM English price group 14No part of this standard 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).ICS 91.100.30!,z-w“9871084www
2、.din.deDDIN EN 14843Precast concrete products StairsEnglish version of DIN EN 14843:2007-07Betonfertigteile TreppenEnglische Fassung DIN EN 14843:2007-07See start of validitywww.beuth.deDocument comprises 40 pages 09.07DIN EN 14843:2007-07 2 Start of validity This standard is due to be valid from 1
3、January 2008. It should be noted that, in Germany, CE conformity marking of construction products will be permitted once this standard has been listed in the Bundesanzeiger (German Federal Law Gazette) and from the date given therein. National foreword This standard has been prepared by CEN/TC 229 “
4、Precast concrete products” (Secretariat: AFNOR, France). The responsible German body involved in its preparation was the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Technical Committee NA 005-07-08 AA Betonfertigteile. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NOR
5、MEN 14843April 2007ICS 91.100.30English VersionPrecast concrete products - StairsProduits prfabriqus en bton - Escaliers Betonfertigteile - TreppenThis European Standard was approved by CEN on 17 February 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate
6、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 CEN Management Centre or to any CEN member.This European Standard exists i
7、n 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 CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies o
8、f Austria, Belgium, Bulgaria, 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.EUROPEAN C
9、OMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14843:2007: EEN 14843:2007(E) 2 Conte
10、nts Page The numbering of clauses is strictly related to EN 13369:2004: Common rules for precast concrete products, at least for the first three digits. When a clause of EN 13369:2004 is not relevant or included in a more general reference of this standard, its number is omitted and this may result
11、in a gap in numbering. Introduction .6 1 Scope 7 2 Normative references 7 3 Terms and definitions .8 3.1 General8 4 Requirements.8 4.1 Material requirements .8 4.2 Production requirements 8 4.3 Finished product requirements8 4.3.1 Geometrical properties .8 4.3.2 Surface characteristics .9 4.3.3 Mech
12、anical resistance.9 4.3.4 Resistance and reaction to fire 10 4.3.5 Acoustic properties .10 4.3.6 Thermal properties 10 4.3.7 Durability 10 4.3.8 Other requirements10 4.3.9 Detailing10 5 Test methods11 5.1 Tests on concrete 11 5.2 Measuring of dimensions and surface characteristics .11 5.3 Weight of
13、the product11 6 Evaluation of conformity.11 7 Marking .12 8 Technical documentation .12 Annex A (informative) Stairs Terms and definitions.13 Annex B (informative) Test Method.20 B.1 Objectives.20 B.2 Specification and selection of specimens 20 B.2.1 Identification of product group 20 B.2.2 Design o
14、f test specimens .20 Annex Y (Informative) Choice of CE marking method.25 Y.1 Method 1 .25 Y.2 Method 2 .25 Y.3 Method 3 .25 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Constructions Product Directive26 ZA.1 Scope and relevant characteristics .26 ZA.2
15、 Procedure for attestation of conformity of stairs.28 ZA.2.1 System of attestation of conformity 28 ZA.2.2 EC Certificate and Declaration of conformity.29 ZA.3 CE marking and labelling30 EN 14843:2007(E) 3 ZA.3.1 General .30 ZA.3.2 Declaration of geometrical data and material properties32 ZA.3.3 Dec
16、laration of product properties .33 ZA.3.4 Declaration of compliance with a given design specification 35 Bibliography38 EN 14843:2007(E) 4 Foreword This document (EN 14843:2007) has been prepared by Technical Committee CEN/TC 229 “Precast concrete products”, the secretariat of which is held by AFNOR
17、 and was examined by and agreed with a joint working party appointed by the Liaison Group CEN/TC 229-TC250, particularly for its compatibility with structural Eurocodes. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsem
18、ent, at the latest by October 2007, and conflicting national standards shall be withdrawn at the latest by January 2009. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Construc
19、tion Products Directive(s) (89/106/EEC). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. This document is one of a series of product standards for precast concrete products. For common aspects reference is made to EN 13369:2004: Common rul
20、es for precast concrete products, from which also the relevant requirements of the EN 206-1: Concrete Part 1: Specification, performance, production and conformity are taken. The references to EN 13369:2004 by CEN/TC 229 product standards are intended to make them homogeneous and to avoid repetition
21、s of similar requirements. Eurocodes are taken as a common reference for design aspects. The installation of some structural precast concrete products is dealt with by ENV 13670-1: Execution of concrete structures Part 1: Common rules, which has at the moment the status of a European Prestandard. In
22、 all countries it can be accompanied by alternatives for national application and it should not be treated as a European Standard. The programme of standards for structural precast concrete products comprises the following standards, in some cases consisting of several parts : EN 1168, Precast concr
23、ete products Hollow core slabs. EN 12794, Precast concrete products Foundation piles. EN 12843, Precast concrete products Masts and poles. EN 13224, Precast concrete products Ribbed floor elements. EN 13225, Precast concrete products Linear structural elements. EN 13693, Precast concrete products Sp
24、ecial roof elements. EN 13747, Precast concrete products Floor plates for floor systems. EN 13978, Precast concrete products Precast concrete garages. EN 14843, Precast concrete products Stairs. EN 14844, Precast concrete products Box culverts. EN 14843:2007(E) 5 EN 14991, Precast concrete products
25、Foundation elements. EN 14992, Precast concrete products Wall elements. prEN 15037, Precast concrete products - Beam-and-block floor systems. EN 15050, Precast concrete products Bridge elements. prEN 15258, Precast concrete products Retaining wall elements. This standard defines in Annex ZA the appl
26、ication methods of CE marking to products designed using the relevant EN Eurocodes (EN 1992-1-1 and EN 1992-1-2). Where, in default of applicability conditions of EN Eurocodes to the works of destination, design Provisions other than EN Eurocodes are used for mechanical strength and/or fire resistan
27、ce, the conditions to affix CE marking to the product are described in ZA.3.4. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark
28、, 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. EN 14843:2007(E) 6 Introduction The evaluation of conformity given i
29、n this standard refers to precast concrete elements which are supplied to the market and covers all the production operations carried out in the factory. The documentation accompanying a manufactured component will refer to the clauses of this standard with which it complies. EN 14843:2007(E) 7 1 Sc
30、ope This standard gives specifications for materials, production, properties, requirements and methods of testing for precast concrete monolithic stairs, and for precast concrete elements (e.g. individual steps) used to make reinforced and/or prestressed concrete stairs. This standard is applicable
31、to structural stairs for indoor or outdoor use. This standard covers precast concrete stairs and associated landings of monolithic design or constructed from individual steps supported by beams or columns. Supporting elements may include in situ concrete. This standard covers terminology, performanc
32、e criteria, verification methods, tolerances, relevant physical properties, special test methods and specific aspects of transport, erection and connection. Geometrical properties related to functionality of stairs are not covered by this standard and can be found in National regulations or local pr
33、actice. Precast concrete stairs are classified into two main product families : monolithic stairs constructed from precast concrete components consisting of flights, landings or a combination of these. They may include vertical supporting elements ; stairs constructed from individual steps, whether
34、load bearing or not, assembled on site with, for example, carriages or a central column. Their shape may be straight or winding. Stairs may incorporate parapets (on one or both sides) and landings. Stairs may have simple bearings (e.g. on corbels, walls or beams), bolted connections or they may be c
35、onnected with reinforcement and in situ concrete. The surfaces of the precast elements may be exposed or covered by finishes. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For un
36、dated references, the latest edition of the referenced document (including any amendments) applies. EN 1992-1-1:2004, Eurocode 2: Design of concrete structures Part 1-1: General rules and rules for buildings EN 13369: 2004, Common rules for precast concrete products EN 14843:2007(E) 8 3 Terms and de
37、finitions 3.1 General Subclauses 3.1 and J.4 of EN 13369:2004 shall apply. Terms and definitions for stairs are given in Annex A (informative). 4 Requirements 4.1 Material requirements Subclause 4.1 of EN 13369:2004 shall apply. 4.2 Production requirements Subclause 4.2 of EN 13369:2004 shall apply.
38、 The concrete shall have a minimum class of C30/37 for reinforced or prestressed concrete stairs. 4.3 Finished product requirements 4.3.1 Geometrical properties 4.3.1.1 Production tolerances Unless stricter tolerances are given in the project specification, subclause 4.3.1.1 of EN 13369:2004 shall a
39、pply except for the amendments given in Table 1 below. Table 1 Amendment to EN 13369:2004, Table 4 Permitted deviations of cross-sections for structural elements Target dimension of the cross-section in the direction to be checked La(mm) cb(mm) L 150 mm + 10 - 5 5 L 400 mm 15 + 15 - 10 Linear interp
40、olation for Intermediate values. aThe difference between two consecutive rises shall not exceed 6 mm.bThe minimum concrete cover defined in 4.3.7 shall take into account the depth of any concrete removed by a finishing process. The positioning of reinforcement shall ensure that the minimum cover def
41、ined in 4.3.7 is achieved. NOTE 1 L and the positive values for c (upper permitted deviation) are given to ensure that deviations in cross-sectional dimensions and in the position of the reinforcement do not exceed values covered by the relevant safety factors in the Eurocodes. NOTE 2 The negative v
42、alues for c (lower permitted deviation) are given for durability purposes. EN 14843:2007(E) 9 4.3.1.2 Minimum nominal dimensions The minimum nominal dimensions of Table 2 shall apply. Table 2 Minimum nominal dimensions (mm) Dimension Minimum dimension Thickness of a step or landing 45 Thickness of a
43、 wall 80 Thickness of a parapet 60 Wall thickness of a hollow element45 Plan dimensions of a column 120 In case of 45 mm of thickness, special care shall be paid to the correct positioning of reinforcement. 4.3.2 Surface characteristics Subclause 4.3.2 of EN 13369:2004 shall apply. The tolerances fo
44、r surface characteristics listed in Table 3 shall be permitted for precast concrete stair components. Table 3 Permitted deviations for surface characteristics (sizes in mm) L = length of the reference rulerad = d1 d2d (2 + L / 500) aSee 5.2 NOTE A client may inform the producer that specific surface
45、s are intended to be finished with paint or a thin coating. 4.3.3 Mechanical resistance 4.3.3.1 General Subclause 4.3.3.1 of EN 13369:2004 shall apply. 4.3.3.2 Verification by calculation Subclause 4.3.3.2 of EN 13369:2004 shall apply. Both static and dynamic loading should be considered. NOTE 1 For
46、 steps less than 80 mm thick or independent steps, the dynamic coefficient may be defined in National regulations or other rules valid in the place of use of the product. NOTE 2 For accidental actions and robustness requirements see National regulation. 4.3.3.3 Verification by calculation aided by t
47、esting Subclause 4.3.3.3 of EN 13369:2004 shall apply. The test methods recommended in Annex B may be used to support verification by calculation. EN 14843:2007(E) 10 4.3.4 Resistance and reaction to fire 4.3.4.1 General Subclauses 4.3.4.1 of EN 13369:2004 shall apply. 4.3.4.2 Resistance to fire Sub
48、clauses 4.3.4.2 and 4.3.4.3 of EN 13369:2004 shall apply. 4.3.4.3 Reaction to fire Subclause 4.3.4.4 of EN 13369:2004 shall apply. 4.3.5 Acoustic properties Subclause 4.3.5 of EN 13369:2004 shall apply. 4.3.6 Thermal properties Subclause 4.3.6 of EN 13369:2004 shall apply. 4.3.7 Durability Subclause
49、 4.3.7 of EN 13369:2004 shall apply, except for the minimum concrete cover for stair corbels defined in subclause 4.3.9. 4.3.8 Other requirements Subclause 4.3.8 of EN 13369:2004 shall apply. 4.3.9 Detailing The detailing of the element, with respect to geometrical data and complementary properties of materials and inserts shall be given in technical documentation, which shall include the construction data, such as the dimensions, the tolerances, the layout of reinforcement, the concrete cover, the expected transie
