1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 12839:2012Precast concrete products Elements for fencesBS EN 12839:2012 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 12839:2012. It
2、 supersedes BS EN 12839:2001, which is withdrawn.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e B / 5 2 4 , P r e c a s t c o n c r e t e p r o d u c t s .A list of organizations represented on this committee can be obtained on request to its secretary.T
3、his publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2012Published by BSI Standards Limited 2012ISBN 978 0 580 70572 4 ICS 91.090; 91.100.30 Compliance with a British Standard cann
4、ot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS EN 12839:2012EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12839
5、January 2012 ICS 91.100.30 Supersedes EN 12839:2001English Version Precast concrete products - Elements for fences Produits prfabriqus en bton - Elments pour cltures Betonfertigteile - Betonelemente fr Zune This European Standard was approved by CEN on 13 November 2011. CEN members are bound to comp
6、ly with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status 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 CEN-CENELEC
7、 Management Centre or to any CEN member. This European Standard 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 sa
8、me status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, P
9、ortugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2012 CEN All rights of exploitation in any form and b
10、y any means reserved worldwide for CEN national Members. Ref. No. EN 12839:2012: EBS EN 12839:2012EN 12839:2012 (E) 2 Contents 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 1336
11、9:2004 is not relevant or included in a more general reference of this standard, its number is omitted and this may result in a gap on numbering. Foreword 41 Scope 62 Normative references 63 Terms and definitions .64 Requirements .84.1 Material requirements .84.2 Production requirements 94.2.1 Concr
12、ete production .94.2.2 Hardened concrete 9 Structural 94.2.3 reinforcement .94.3 Finished product requirement 94.3.1 Geometrical properties .94.3.2 Surface characteristics 114.3.3 Mechanical resistance 114.3.4 Resistance and reaction to fire . 154.3.5 Acoustic properties 154.3.6 Thermal properties .
13、 154.3.7 Durability . 154.3.8 Safety in handling . 165 Test methods . 165.1 Dimensions 165.1.1 Measuring equipment . 165.1.2 Posts and rails 175.1.3 Panels 195.2 Concrete cover 205.3 Surface characteristic 205.3.1 Surface finish as cast . 205.3.2 Surface finish treated . 205.4 Water absorption 205.5
14、 Concrete strength . 205.6 Load testing . 205.7 Density . 216 Evaluation of conformity 216.1 General . 216.2 Initial type testing . 216.2.1 General . 216.2.2 Load bearing capacity and durability . 216.2.3 Other characteristics 216.3 Factory production control 226.3.1 General . 226.3.2 Finished eleme
15、nts. 226.4 Independent acceptance testing and compliance criteria 227 Marking and labelling . 227.1 Information 227.2 Complementary information 22BS EN 12839:2012EN 12839:2012 (E) 3 8 Technical documentation . 23Annex A (informative) Basic types of fences . 24A.1 General . 24A.2 Solid fence . 24A.3
16、Open-work fence . 25A.4 Mesh or wire fence 25A.5 Mixed fence 26A.6 Rail fence 28A.7 Anti-intruder fence 29Annex B (normative) Test method for the determination of the load bearing capacity and the complementary load bearing capacity 32B.1 Load testing . 32Annex C (normative) Factory production contr
17、ol procedures . 38Annex D (informative) Acceptance testing of a consignment at delivery . 39D.1 General . 39D.2 Sampling. 39D.3 Places and dates of inspection and acceptance testing . 39D.4 Compliance 39Annex ZA (informative) Relationship between this European Standard and the essential requirements
18、 of EU Directive 89/106/EEC, EU Construction Products Directive . 41ZA.1 Scope and relevant characteristics . 41ZA.2 Procedure for attestation of conformity of precast concrete elements for boundary fences . 42ZA.3 CE marking and labelling 44Bibliography 52BS EN 12839:2012EN 12839:2012 (E) 4 Forewor
19、d This document (EN 12839:2012) has been prepared by Technical Committee CEN/TC 229 “Precast concrete products”, the secretariat of which is held by AFNOR. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the la
20、test by July 2012, and conflicting national standards shall be withdrawn at the latest by October 2013. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all su
21、ch patent rights. This document supersedes EN 12839:2001. 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 Directive(s). For relationship with EU Directive(s), see informative An
22、nex ZA, which is an integral part of this document. This standard is one of a series of product standards for precast concrete products. For common aspects reference is made to EN 13369:2004, Common rules for precast concrete products, from which also the relevant requirements of EN 206-1, Concrete
23、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 repetitions of similar requirements. Eurocodes are taken as a common reference for design aspects. The installa
24、tion of some structural precast concrete products is dealt with by EN 13670-1, Execution of concrete structures, which has at the moment the status of an European prestandard. In all countries, it can be accompanied by alternatives for national application and it shall not be treated as an European
25、standard. The programme of standards for structural precast concrete products comprises the following standards, in some cases consisting on several parts: EN 1168, Precast concrete products Hollow core slabs; EN 12794, Precast concrete products Foundation piles; EN 12843, Precast concrete products
26、Masts and poles; EN 13224, Precast concrete products Ribbed floor elements; EN 13225, Precast concrete products Linear structural elements; EN 13693, Precast concrete products Special roof elements; EN 13747, Precast concrete products Floor plates for floor systems; EN 13978 (all parts), Precast con
27、crete products Precast concrete garages; EN 14843, Precast concrete products Stairs; BS EN 12839:2012EN 12839:2012 (E) 5 EN 14844, Precast concrete products Box culverts; EN 14991, Precast concrete products Foundation elements; EN 14992, Precast concrete products Wall elements; EN 15037-1, Precast c
28、oncrete products Beam-and-block floor systems Part 1: Beams; EN 15037-2, Precast concrete products Beam-and-block floor systems Part 2: Concrete blocks; EN 15037-3, Precast concrete products Beam-and-block floor systems Part 3: Clay blocks; EN 15050, Precast concrete products Bridge elements; EN 152
29、58, Precast concrete products Retaining wall elements. This standard defines in Annex ZA the application 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
30、, design Provisions other than EN Eurocodes are used for mechanical strength, 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 Euro
31、pean Standard: Austria, Belgium, Bulgaria, Croatia, 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, Turk
32、ey and the United Kingdom. BS EN 12839:2012EN 12839:2012 (E) 6 1 Scope This European standard specifies precast products in reinforced or pre-stressed concrete with or without fibres, to be used together or in combination with other elements to erect fences e.g. boundary fences. This European standa
33、rd covers both mechanical resistance determined by calculation and load bearing capacity determined by testing. Normal weight concrete or light weight concrete elements include posts, solid or open panels, slabs, rails, spurs, struts and base panels. The intended uses may be nonstructural or lightly
34、 structural. It provides for the evaluation of conformity of elements to this European Standard. Marking conditions are included. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. Fo
35、r undated references, the latest edition of the referenced document (including any amendments) applies. EN 206-1:2000, Concrete Part 1: Specification, performance, production and conformity EN 1991-1-4:2005, Eurocode 1: Actions on structures Part 1-4: General actions Wind actions EN 12390-4:2000, Te
36、sting hardened concrete Part 4: Compressive strength Specification for testing machines EN 13369:2004, Common rules for precast concrete products 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13369:2004 and the following apply. 3.1 types of fences N
37、OTE Annex A intends to provide information on the possible types of fences in which these elements may be part of. 3.1.1 solid fence fence made of posts and solid panels or cladding 3.1.2 open-work fence fence made of posts and open-work panels possibly including solid panels 3.1.3 mesh or wire fenc
38、e fence made of posts and woven or welded wire mesh, and/or wires BS EN 12839:2012EN 12839:2012 (E) 7 3.1.4 mixed fence fence made of posts and a combination of different elements with at least one base panel or fence made of load bearing base enclosure walls acting as a base panel and a combination
39、 of different (welded) wire meshes 3.1.5 rail fence fence made of posts and rails 3.1.6 anti-intruder fence mesh fence, solid fence or mixed fence with an enhanced level of security provided by the addition of barbed wire, barbed tape or similar attached to posts with cranked or vertical extensions
40、3.2 post vertical element of reinforced or pre-stressed concrete, intended to be buried or fastened at its base NOTE This element is designed to accommodate solid or open-work panels and/or rails, meshes or wires. 3.2.1 intermediate post post used in the fence line, interposed between ends, directio
41、n changes and straining points (if any) 3.2.2 accessory post post shaped and designed to provide a particular function 3.2.2.1 corner post post used at a change of direction 3.2.2.2 end post post used at the extremity of a fence line 3.2.2.3 straining post post from which tension wires are stretched
42、, with or without struts (e.g. end-straining post, corner post, intermediate straining post) 3.2.2.4 gate post post used to support a gate 3.3 rail horizontal element of reinforced or pre-stressed concrete, connected to and supported by the post NOTE Rails for sports grounds are distinguished from o
43、ther types of rails. 3.4 panel horizontal element of reinforced or pre-stressed concrete, connected to the post 3.4.1 solid panel panel of reinforced concrete BS EN 12839:2012EN 12839:2012 (E) 8 3.4.2 open-work panel panel with regular or varied open-work patterns 3.4.3 base panel panel of reinforce
44、d concrete used between posts at ground level 3.5 spur short post intended to support a fence post made with a material other than concrete 3.6 strut element designed to provide support to post carrying horizontal loads 3.7. dimension dimension specified by the manufacturer and generally complying w
45、ith the dimension indicated in the project or in the manufacturer technical documentation NOTE 1 The design height of the posts for solid fences is the height of the solid part of the fence. NOTE 2 The design height of the anti-intruder fence is equal to the height of the post without cranked or ver
46、tical extension. 3.8 surface finish Finishes are classified as one of two categories corresponding to the different manufacturing techniques detailed below. 3.8.1 surface finish as cast surface finish obtained at demoulding, if necessary after surfacing or finishing 3.8.2 surface finish treated surf
47、ace finish obtained after complementary treatment on the concrete in fresh state or in hardened state 3.9 heat treatment The process of heating the fresh concrete in order to accelerate cement hydration where the temperature of the concrete after compaction is above 45 C or is in excess of 25 C abov
48、e the ambient temperature 3.10 normal weight concrete 3.1.7 of EN 206-1:2000 shall apply 3.11 lightweight concrete 3.1.8 of EN 206-1:2000 shall apply 4 Requirements 4.1 Material requirements 4.1 of EN 13369:2004 shall apply: BS EN 12839:2012EN 12839:2012 (E) 9 4.2 Production requirements 4.2.1 Concrete production 4.2.1 of EN 13369:2004 shall apply, with the following complementary requirements. However, where instant demoulding of elements is required, they may be produced using a concrete mix of water content and workability s
