1、BRITISH STANDARDBS EN 12737:2004 +A1:2007Precast concrete products Floor slats for livestockICS 65.040.10; 91.100.30g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g
2、43g55g3g47g36g58BS EN 12737:2004+A1:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 September 2004 BSI 2008ISBN 978 0 580 61048 6National forewordThis British Standard is the UK implementation of EN 12737:2004+A1:2007. It supersedes BS
3、EN 12737:2004 which is withdrawn. 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 !“.The UK participation in its
4、preparation was entrusted to Technical Committee B/524, Precast concrete products.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its c
5、orrect application. Compliance with a British Standard cannot confer immunity from legal obligations.Amendments/corrigenda issued since publicationDate Comments31 January 2008 Implementation of CEN amendment A1:2007EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12737:2004+A1 October 2007 ICS 6
6、5.040.10; 91.100.30 Supersedes EN 12737:2004 English Version Precast concrete products - Floor slats for livestock Produits prfabriqus en bton - Caillebotis pour btail Betonfertigteile - Spaltenbden fr die Tierhaltung This European Standard was approved by CEN on 24 June 2004 and includes Amendment
7、1 approved by CEN on 30 August 2007. 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 without any alteration. Up-to-date lists and bibliographical references concerning such na
8、tional standards may be obtained on application to the CEN 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 an
9、d notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
10、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All right
11、s of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12737:2004+A1:2007: EBS EN 12737:2004+A1:2007 (E) 2 Contents !The numbering of clauses is strictly related to EN 13369:2004, Common rules for precast concrete products, at least for the first thre
12、e 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 in a gap on numbering.“ page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Requirements.6 4.1 Material requirements
13、 .6 4.2 Production requirements 6 4.3 Finished product requirements7 5 Test methods14 5.1 Compressive strength.14 5.2 Geometrical characteristics14 5.3 Cement content14 5.4 Water/cement ratio.14 5.5 Water absorption .14 6 Evaluation of conformity.14 7 Marking .14 8 Documentation.14 Annex A (normativ
14、e) Additional scheme for finished product inspection 15 Annex B (normative) Acceptance testing of a consignment at delivery16 B.1 General16 B.2 Non-certified products 17 B.3 Certified products17 Annex Y (informative) !Choice of CE marking method18 Y.1 General18 Y.2 Method 1 .18 Y.3 Method 2 .18 Y.4
15、Method 3 .18 Annex ZA (informative) !Relationship between this European Standard and the Essential Requirements of EU Directive 89/109/EEC, EU Construction Products Directive19 ZA.1 Scope and relevant characteristics .19 ZA.2 Procedure for attestation of conformity of floor slats .21 ZA.2.1 System o
16、f attestation of conformity 21 ZA.2.2 EC Certificate and Declaration of conformity.22 ZA.3 CE marking and labelling23 ZA.3.1 General23 ZA.3.2 Declaration of geometrical data and material properties 25 ZA.3.3 Declaration of product properties26 ZA.3.4 Declaration of compliance with a given design spe
17、cification 30 Bibliography 32 BS EN 12737:2004+A1:2007 (E) 3 Foreword This document (EN 12737:2004+A1:2007) has been prepared by Technical Committee CEN/TC 229 “Precast concrete products”, the secretariat of which is held by AFNOR and was examined by and agreed with a joint working party appointed b
18、y 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 endorsement, at the latest by April 2008, and conflicting national standards s
19、hall be withdrawn at the latest by July 2009. This document supersedes EN 12737:2004. This document includes Amendment 1, approved by CEN on 2007-08-30. The start and finish of text introduced or altered by amendment is indicated in the text by tags !“. !deleted text“ !This document has been prepare
20、d under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of the Construction Products Directive (89/106/EEC). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document.“ Th
21、is document is consistent with the Council Directive 2001/88/EC of 23 October 2001 amending Directive 91/630/EEC laying down minimum standards for the protection of pigs. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to i
22、mplement this European Standard: 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, Switzerl
23、and and the United Kingdom. BS EN 12737:2004+A1:2007 (E) 4 1 Scope This document specifies the requirements for reinforced and prestressed precast concrete floor slats used in slatted floors for the housing of livestock and provides for the evaluation of conformity of these products. This document d
24、oes not cover slats for loadings other than stock and stockmen. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced documen
25、t (including any amendments) applies. 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 floor slat floor component suitable for use by livestock situated a
26、bove a slurry pit or channel and provided with openings for the draining of slurry, feed and straw waste to the slurry pit or channel underneath (see Figure 1) 3.2 slat beam single beam used as a floor slat 3.3 twin slat assembly of two parallel spaced beams, mutually linked by means of two or more
27、transversal connections, perpendicular to the longitudinal direction of those beams used as a floor slat 3.4 multiple slat assembly of two or more parallel spaced beams, mutually linked by means of two or more transversal connections, perpendicular to the longitudinal direction of those beams, and/o
28、r with a perforated slab in between used as a floor slat 3.5 perforated panel panel with a regular pattern of holes used as a floor slat 3.6 load class class of floor slats according to the type of stock and mass of animal (see Table 3) BS EN 12737:2004+A1:2007 (E) 5 3.7 acceptance number highest nu
29、mber of nonconforming products for which the consignment is accepted 3.8 rejection number smallest number of nonconforming products for which the consignment is rejected a) Slat beams b) Twin slats c) Multiple slats d) Perforated panels Figure 1 Examples of floor slats BS EN 12737:2004+A1:2007 (E) 6
30、 4 Requirements 4.1 Material requirements 4.1.1 General Subclause 4.1.1 of EN 13369:2004 shall apply. 4.1.2 Constituent materials of concrete Subclause 4.1.2 of EN 13369:2004 shall apply, provided that high alumina and super-sulphated cement are not used. Special consideration shall be given to aggr
31、egates which may become slippery under the abrasion of hooves. 4.1.3 Reinforcing steel 4.1.3.1 Bars, coils and welded fabric Subclause 4.1.3 of EN 13369:2004 shall apply. 4.1.3.2 Lattice girders The suitability of lattice girders shall be verified following 4.1.1 of EN 13369:2004. 4.1.4 Prestressing
32、 steel Subclause 4.1.4 of EN 13369:2004 shall apply. 4.2 Production requirements 4.2.1 Concrete production Subclause 4.2.1 of EN 13369:2004 shall apply. 4.2.2 Hardened concrete Subclause 4.2.2 of EN 13369:2004 shall apply, provided that the strength class is at least C35/45 for reinforced concrete a
33、nd at least C 45/55 for prestressed concrete. 4.2.3 Structural reinforcement Subclause 4.2.3 of EN 13369:2004 and the following shall apply. The reinforcement shall be positioned correctly throughout the component. The longitudinal reinforcement of reinforced concrete components shall continue to le
34、ss than 10 mm and more than 25 mm before the head-end of the component. The exposed ends of prestressing tendons shall be protected. BS EN 12737:2004+A1:2007 (E) 7 4.3 Finished product requirements 4.3.1 Geometrical characteristics 4.3.1.1 Dimensions The nominal length of the floor slat shall be dec
35、lared by the manufacturer. The nominal sizes of the beam width and gap width between beams, or for perforated slabs the diameter of round holes shall be as given in Table 1 (see also Figure 2). Table 1 Nominal sizes for floor slats (dimensions in millimetres) Load class Beam width (b) Gap width (s)
36、Hole diameter (d) A1 70 - 120 20 - 28 30 A2 70 - 160 30 - 35 A3 70 - 180 30 - 40 50 B1 50 - 80 10 14 a 20 B2 80 - 120 14 - 18 B3 80 - 120 14 - 20 25 aFor piglets, the maximum gap width is 11 mm (see Council Directive 2001/88/EC of 23 October 2001). BS EN 12737:2004+A1:2007 (E) 8 Key r 5 mm for load
37、class A 5 h1(mm) 20 3 mm for load class B 88 90 5 Figure 2 Geometry of slat beam sections 4.3.1.2 Dimensional tolerances The maximum permitted dimensional deviations of length ( l), height ( h), beam width ( b) or gap width ( s) and diameter ( d) of round holes shall be as given in Table 2. Table 2
38、Maximum permitted dimensional deviations (dimensions in millimetres) Maximum permitted deviation Load class l h b = s d A1 3 A2 A3 + 0 10 3 5 5 B1 2 2 B2 B3 + 0 6 3 3 3 BS EN 12737:2004+A1:2007 (E) 9 4.3.1.3 Shape of the gaps The inclination of the side faces of the openings in floor slats shall con
39、form to Figure 2 so as to enable efficient slurry drainage. The top of the beams shall have no sharp edges. Where radius or chamfer are provided these shall not exceed 5 mm for load class A and 3 mm for load class B. 4.3.1.4 Flatness The upper face of the floor slats shall be flat across the width.
40、The flatness of end supported floor slats subjected only to their self weight shall conform to the following: for reinforced concrete components the upper face of the component shall not deviate more than 5 mm from the connection line between the upper faces at the ends; for prestressed concrete com
41、ponents the vertical camber along the length of the component shall not deviate from the declared camber by more than 5 mm. 4.3.2 Surface characteristics Before use, the upper face and edges shall be free from burrs and projections. At departure from the factory, slats shall show no cracks with a wi
42、dth greater than 0,1 mm. 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 Loads Table 3 gives the classification of the slats for livestock housing defined on the base of type of stock and mass of animals. BS EN 12737:2004+A1:2007 (E) 10 !Table 3“ C
43、lassification of floor slats for livestock housing Load class Type of stock Mass of animal (kg) A1 Calves 200 A2 A3 Cattle 200 - 825 B1 Piglets and weaner pigs 40 B2 Rearing and finishing pigs, sheep and goats 20 - 125 B3 Gilts after service, sows and boars, sheep and goats 25 - 250 NOTE 1 Mass of a
44、nimal relates to the average of a group. The mass of a single animal can exceed the tabulated mass by up to 15 %. NOTE 2 Type of livestock not mentioned in this table should be classified according to their mass. Floor slats for use solely by stock and stockmen shall be designed in accordance with t
45、he indicated vertical and horizontal variable characteristic loads. Self weight of floor slats and other additional loads (e.g. self weight of pen partitions, feeding troughs, .) shall be dealt with in the design. The following variable characteristic loads shall be taken: a vertical characteristic
46、linear load qk; a vertical characteristic point load Fk,v; a horizontal characteristic point load Fk,h. Values of qk, Fk,vand Fk,hshall be as given in Table 4. For single beams these values shall be multiplied by 1,1. !Table 4“ Characteristic loading values Load class Linear load qk(kN/m) Vertical p
47、oint load Fk,v(kN) Distance a (m) Horizontal point load Fk,h(kN) A1 2,5 1,2 0,5 0,5 A2 5,0 4,2 0,8 2,5 A3 5,0 4,2 0,8 2,5 B1 0,8 0,8 0,3 0,1 B2 1,5 1,0 0,5 0,5 B3 2,5 1,3 0,5 1,0 The given loading values include possible dynamic effects. BS EN 12737:2004+A1:2007 (E) 11 NOTE Special consideration in
48、design should be given to loading values for stock with a mass of animal greater than the maximum values of load classes A2/A3 and B3. 4.3.3.3 Design by calculation 4.3.3.3.1 General Subclause 4.3.3.2 !deleted text“ of EN 13369:2004 and the following shall apply. 4.3.3.3.2 Load cases The following l
49、oad cases shall be taken into account separately: a) A combination of a vertical characteristic linear load qkand a vertical characteristic point load Fk,v, located at the most unfavourable position on the axis of a beam (see Figure 3). Further linear load(s) qk, placed at distance a (see Table 4) shall be added if this increases the action-effect. The vertical point load shall act at a location that is relevant for the action-effect under consideration. NOTE 1 Locations within a distance
