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1、BRITISH STANDARD BS EN 12737:2004 Precast concrete products Floor slats for livestock The European Standard EN 12737:2004 has the status of a British Standard ICS 65.040.10; 91.100.30 ? Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 1
2、2737:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 7 September 2004 BSI 7 September 2004 ISBN 0 580 44424 4 National foreword This British Standard is the official English language version of EN 12737:2004. The UK participation in its
3、preparation was entrusted to Technical Committee B/524, Precast concrete products, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publ
4、ications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the ne
5、cessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the in
6、terpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 18, an inside back cover and
7、a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME
8、EUROPENNE EUROPISCHE NORM EN 12737 September 2004 ICS 65.040.10; 91.100.30 English version Precast concrete products - Floor slats for livestock Produits prfabriqus en bton - Caillebotis pour btailBetonfertigteile - Spaltenbden fr die Tierhaltung This European Standard was approved by CEN on 24 June
9、 2004. 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 national standards may be obtain
10、ed on application to the Central Secretariat 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 Central Secret
11、ariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Port
12、ugal, 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 2004 CENAll rights of exploitation in any form and by any means reserve
13、d worldwide for CEN national Members. Ref. No. EN 12737:2004: E Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 2 Contents page Foreword3 1 Scope 4 2 Normative references4 3 Terms and definitions .4 4 Requirements.6 4.1 Mat
14、erial requirements .6 4.1.1 General6 4.1.2 Constituent materials of concrete6 4.1.3 Reinforcing steel6 4.1.4 Prestressing steel6 4.2 Production requirements6 4.2.1 Concrete production .6 4.2.2 Hardened concrete 6 4.2.3 Structural reinforcement.6 4.3 Finished product requirements7 4.3.1 Geometrical c
15、haracteristics7 4.3.2 Surface characteristics .9 4.3.3 Mechanical resistance.9 4.3.4 Durability 13 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 Docum
16、entation.14 Annex A (normative) Additional scheme for finished product inspection15 Annex B (normative) Acceptance testing of a consignment at delivery16 B.1 General16 B.2 Non-certified products 17 B.3 Certified products17 Bibliography18 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:2
17、1 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 3 Foreword This document (EN 12737:2004) 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,
18、 either by publication of an identical text or by endorsement, at the latest by March 2005, and conflicting national standards shall be withdrawn at the latest by March 2005. No existing European Standard is superseded by this standard. This standard is consistent with the Council Directive 2001/88/
19、EC of 23 October 2001 amending Directive 91/630/EEC laying down minimum standards for the protection of pigs. This document includes a Bibliography. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European
20、 Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Licensed Copy: sh
21、effieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (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 evaluati
22、on of conformity of these products. This document does 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 refer
23、ences, the latest edition of the referenced document (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 floo
24、r component suitable for use by livestock situated above 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 sp
25、aced beams, mutually linked by means of two or more 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
26、 to the longitudinal direction of those beams, and/or 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) Licensed Co
27、py: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 5 3.7 acceptance number highest number of nonconforming products for which the consignment is accepted 3.8 rejection number smallest number of nonconforming products for which the consig
28、nment is rejected a) Slat beams b) Twin slats c) Multiple slats d) Perforated panels Figure 1 Examples of floor slats Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 6 4 Requirements 4.1 Material requirements 4.1.1 General
29、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 aggregates which may become slippery under the abrasion of h
30、ooves. 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 steel Subclause 4.1.4 of EN 13369:2004 shall apply. 4.2
31、 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 and at least C 45/55 for prestressed concrete. 4.2.3 Stru
32、ctural 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 less than 10 mm and more than 25 mm before the head-end of
33、 the component. The exposed ends of prestressing tendons shall be protected. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 7 4.3 Finished product requirements 4.3.1 Geometrical characteristics 4.3.1.1 Dimensions The nomin
34、al length of the floor slat shall be declared 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)
35、Load class Beam width (b) Gap width (s) 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 a For piglets, the maximum gap width is 11 mm (see Council Directive 2001/88/EC of 23 October 2001). Licensed C
36、opy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 8 Key r 5 mm for load 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 deviati
37、ons 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 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
38、 3 3 3 Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 9 4.3.1.3 Shape of the gaps The inclination of the side faces of the openings in floor slats shall conform to Figure 2 so as to enable efficient slurry drainage. The to
39、p 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. The flatness of end supported floor slats subjected only to their
40、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 components the vertical camber along the length of the component shal
41、l 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 width greater than 0,1 mm. 4.3.3 Mechanical resistance 4.3.3.1 Gener
42、al 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. Licensed Copy: sheffieldun sheffieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN
43、 12737:2004 (E) 10 Table 1 Classification 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 goa
44、ts 25 - 250 NOTE 1 Mass of animal 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 d
45、esigned in accordance with the 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
46、: a vertical characteristic linear load qk; a vertical characteristic point load Fk,v; a horizontal characteristic point load Fk,h. Values of qk, Fk,v and Fk,h shall be as given in Table 4. For single beams these values shall be multiplied by 1,1. Table 2 Characteristic loading values Load class Lin
47、ear load qk (kN/m) Vertical point 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. Licensed Copy: sheffieldun shef
48、fieldun, na, Sat Oct 28 10:02:21 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 12737:2004 (E) 11 NOTE Special consideration in 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.
49、1 General Subclauses 4.3.3.2 and 4.3.3.3 of EN 13369:2004 and the following shall apply. 4.3.3.3.2 Load cases The following load cases shall be taken into account separately: a) A combination of a vertical characteristic linear load qk and 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 Tab