1、July 2007DEUTSCHE NORM English price group 13No 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 93.020!,z-x“9871085www.di
2、n.deDDIN EN 14991Precast concrete products Foundation elementsEnglish version of DIN EN 14991:2007-07Betonfertigteile GrndungselementeEnglische Fassung DIN EN 14991:2007-07See start of validitywww.beuth.deDocument comprises 29 pages 09.07DIN EN 14991:2007-07 2 Start of validity This standard is due
3、to be valid from 1 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 prepa
4、red by CEN/TC 229 “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 EURO
5、PENNEEUROPISCHE NORMEN 14991April 2007ICS 91.100.30English VersionPrecast concrete products - Foundation elementsProduits prfabriqus en bton - lments de fondation Betonfertigteile - GrndungselementeThis European Standard was approved by CEN on 13 January 2007.CEN members are bound to comply with the
6、 CEN/CENELEC Internal Regulations which stipulate 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
7、 to any CEN member.This European Standard exists in 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 versio
8、ns.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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain,
9、 Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE 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
10、.Ref. No. EN 14991:2007: EEN 14991:2007 (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 13369 is not relevant or included in a more general reference of this standar
11、d, its number is omitted and this may result in a gap on numbering. Foreword3 Introduction .5 1 Scope 6 2 Normative references 6 3 Terms and definitions .6 4 Requirements.7 5 Test methods8 6 Evaluation of conformity.8 7 Marking .9 8 Technical documentation .9 Annex A (normative) Inspection schemes 1
12、0 Annex B (informative) Typical shapes of foundation elements11 Annex Y (informative) Choice of CE marking method.17 Annex ZA (informative) Clauses of this European Standard addressing the provisions of the EU Construction Products Directive18 Bibliography 27 EN 14991:2007 (E) 3 Foreword This docume
13、nt (EN 14991:2007) 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 by the Liaison Group CEN/TC 229-TC250, particularly for its compatibility with structural
14、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 October 2007, and conflicting national standards shall be withdrawn at the latest by January 2009. This document has been prepared under
15、a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Construction Products Directives (89/106/EEC). For relationship with EU Directives, see informative Annex ZA, which is an integral part of this document. This standard
16、 is one of a series of product standards for precast concrete products. For common aspects reference is made to EN 13369: Common rules for precast concrete products, from which also the relevant requirements of the EN 206-1: Concrete Part 1: Specification, performance, production and conformity are
17、taken. The references to EN 13369 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 installation of some structural precast concrete products is dealt with by ENV 1
18、3670-1: Execution of concrete structures Part 1: Common rules, 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 a European Standard. The programme of standards for structural
19、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 Masts and poles EN 13747, Precast concrete products Fl
20、oor plates for floor systems EN 15037 (all parts), Precast concrete products Beams for beam-and-block floor systems EN 13224, Precast concrete products Ribbed floor elements EN 13225, Precast concrete products Linear structural elements EN 14992, Precast concrete products Wall elements EN 15258, Pre
21、cast concrete products Retaining wall elements EN 13693, Precast concrete products Special roof elements EN 14991:2007 (E) 4 EN 14844, Precast concrete products Box culverts EN 13978-1, Precast concrete products Precast concrete garages - Part 1: Requirements for reinforced garages monolithic or con
22、sisting of single sections with room dimensions EN 14991, Precast concrete products Foundation elements EN 15050, Precast concrete products Bridge elements EN 14843, Precast concrete products Stairs This European Standard defines in Annex ZA the application methods of CE marking to products designed
23、 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, the conditions to affix CE marking to the product are described in ZA
24、.3.5. 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, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, I
25、taly, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 14991:2007 (E) 5 Introduction The evaluation of conformity given in this European Standard refers to the completed precast elements which
26、are supplied to the market and covers all the production operations carried out in the factory. For design rules reference is made to EN 1992-1-1. Additional complementary rules are provided where necessary. EN 14991:2007 (E) 6 1 Scope This European Standard deals with the requirements and the basic
27、 performance criteria and specifies where applicable minimum values for precast foundation elements (comprising columns with integrated foundation elements, pocket foundation elements, sockets) made of reinforced normal weight concrete for structure of buildings according to EN 1992-1-1. This Europe
28、an Standard covers terminology, performance criteria, tolerances, relevant physical properties and special aspects of transport and erection. This European Standard does not cover the bearing capacity determined by testing. 2 Normative references The following referenced documents are indispensable
29、for the application of this document. For dated references, only the edition cited applies. For undated 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 buil
30、dings EN 1997-1:2004, Eurocode 7: Geotechnical design Part 1: General rules EN 13369:2004, Common rules for precast concrete products 3 Terms and definitions For the purpose of this document, the terms and definitions given in Clause 3 of EN 13369:2004 and the following apply. 3.1 pocket foundation
31、element precast reinforced concrete unit capable of transferring vertical actions, bending moments and horizontal shears from structural components of the structure (e.g. columns, foundation beams, walls) to the soil (see Figures B.2 to B.4) 3.2 column with integrated foundation element precast foun
32、dation element forming part of a column and permanently fixed to it 3.3 socket either vertical part of a pocket foundation element (see Figures B.3 and B.4) or separate precast unit corresponding to that part (see Figure B.1) 3.4 footing horizontal part of the pocket foundation element NOTE It can e
33、ither be a part of a pocket unit or be cast on site. 3.5 pocket with keyed surfaces pocket expressly wrought with indentations or keys at the vertical internal surfaces of the socket EN 14991:2007 (E) 7 3.6 pocket with smooth surfaces pocket with the internal surfaces of its socket smooth as cast 3.
34、7 product family group of foundation elements of the same type and shape, with the same critical dimensions and manufactured with the same type of concrete (type of concrete: see EN 13369:2004, 3.1.8) 4 Requirements 4.1 Material requirements 4.1 of EN 13369:2004 shall apply except that 4.1.4 is not
35、relevant. 4.2 Production requirements 4.2.1 Concrete production 4.2.1 of EN 13369:2004 shall apply. 4.2.2 Hardened concrete 4.2.2 of EN 13369:2004 shall apply. 4.2.3 Structural reinforcement 4.2.3 of EN 13369:2004 shall apply except that 4.2.3.2 is not relevant. 4.3 Finished product requirements 4.3
36、.1 Geometrical properties 4.3.1.1 Production tolerances 4.3.1.1 of EN 13369:2004 shall apply. 4.3.1.2 Minimum nominal dimensions 4.3.1.2 of EN 13369:2004 shall apply. 4.3.2 Surface characteristics 4.3.2 of EN 13369:2004 shall apply. EN 14991:2007 (E) 8 4.3.3 Mechanical resistance 4.3.3.1 General 4.3
37、.3.1 of EN 13369:2004 shall apply. 4.3.3.2 Verification by calculation 4.3.3.2 of EN 13369:2004, 10.9.6 of EN 1992-1-1:2004 and 6 of EN 1997-1:2004 shall apply. Interactions with soil irregularities shall be checked. 4.3.3.3 Resistance to vertical load and bending moment 10.9.6 of EN 1992-1-1:2004 a
38、nd Clause 6 of EN 1997-1:2004 shall apply. 4.3.3.4 Verification by calculation aided by physical testing 4.3.3.3 of EN 13369:2004 shall apply. 4.3.3.5 Safety factors 4.3.3.5 of EN 13369:2004 shall apply. 4.3.3.6 Transient situations 4.3.3.6 of EN 13369:2004 shall apply. 4.3.7 Durability 4.3.7 of EN
39、13369:2004 shall apply. 4.3.8 Other requirements 4.3.8 of EN 13369:2004 shall apply. 5 Test methods Clause 5 of EN 13369:2004 shall apply. 6 Evaluation of conformity 6.1 General Compliance of the product with the requirements of this European Standard shall be demonstrated by: initial type testing;
40、factory production control. 6.1 of EN 13369:2004 shall apply. EN 14991:2007 (E) 9 6.2 Type testing 6.2 of EN 13369:2004 shall apply. Previous type tests (or tests) executed before the application of the present standard may be used as type tests provided they are related to the same product family w
41、ith the same or equivalent or more demanding test method. 6.3 Factory production control 6.3 of EN 13369:2004 shall apply. Inspection schemes shall be conducted in an accordance with Annex A of the present standard and EN 13369:2004, Annexes D.1 to D.3, D.4 as amended in Annex A and D.5. 7 Marking C
42、lause 7 of EN 13369:2004 shall apply. NOTE For CE marking see Annex ZA. 8 Technical documentation The detailing of the element, referred to geometrical data with the complementary properties of materials and inserts, shall be given in technical documentation, which includes the construction data, su
43、ch as the dimensions, the tolerances, the layout of reinforcement, the concrete cover, the expected transient and final support conditions and lifting conditions. The composition of technical documentation is given in clause 8 of EN 13369:2004. EN 14991:2007 (E) 10 Annex A (normative) Inspection sch
44、emes A.1 Finished product inspection The Table A.1 replaces item 2 of Table D.4 of EN 13369:2004. Table A.1 Finished product inspection Subject Method Purpose Frequency Product Testing 2a Critical dimensions Measuring according to 5.2 of EN 13369:2004 Conformity with the requirements of this standar
45、d and with the design specification One product / family / 5 production days One product/production day 2b Internal surface characteristics in case of pockets with keyed surfaces Visual inspection Roughness for shear resistance As for critical dimensions If treated after production: 1 element/roughe
46、ning process/production day EN 14991:2007 (E) 11 Annex B (informative) Typical shapes of foundation elements B.1 Typology Precast concrete foundation elements dealt with in this European Standard can be distinguished in some principal types according to the following criteria: a) sockets constitutin
47、g separate units (see Figure B.1); b) pocket foundation elements: without footing (see Figure B.2); with footing: with or without gentle slope (see Figure B.3); with stiffeners (see Figure B.4); c) columns with integrated foundation elements (see Figure B.5). EN 14991:2007 (E) 12 a) for concrete col
48、umn, with chamferred edges b) for concrete column, with straight edges Key 1 concrete column 2 reinforcement protruding from the socket 3 cast on site footing c) for steel column Key 1 steel column 2 precast concrete socket 3 hole for steel bar 4 steel bar Figure B.1 Examples of sockets EN 14991:200
49、7 (E) 13 Key 1 concrete column Figure B.2 Example of pocket foundation without footing a) for concrete column, with parallelepiped footing b) for concrete column, with footing with gentle slope Key 1 concrete column 3 footing 2 socket 4 gentle slope EN 14991:2007 (E) 14 c) for steel column and concrete foundation beams Key 1 steel loop 4 holes for steel bars 2 internal stiffener 5 footing with gentle slope 3 encasing d) for wall Key 1 gap for the wall 3 footing with gentle slope 2 socket F
