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DRAFTFOR DEVELOPMENT DD ENV13670-1:2000ICS 91.080.40NO COPYING WITHOUTBSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWExecution ofconcretestructures Part 1: CommonLicensed Copy: London South BankUniversity, London South Bank University, Fri Oct 06 09:18:34 BST2006, Uncontrolled Copy, (c) BSIThis Draft for Development,havingbeen prepared under thedirection of the SectorCommittee forBuilding and CivilEngineering, was published underthe authority ofthe StandardsCommittee and comes into effecton 15 June 2000 BSI06-2000ISBN 0 580 34934 9DD ENV 13670-1:2000Amendments issued sincepublicationAmd. No. Date CommentsNational forewordThis Draft forDevelopment is the official English language version ofENV13670-1:2000. It results from a programme of work undertaken by CENtomake available a common set of standards for execution ofconcrete structures.This publication is not to be regarded as aBritish Standard.It is being issued in the Draft for Developmentseries of publications and is of aprovisional nature. It should beapplied on this provisional basis, so that informationandexperience of its practical application mat be obtained.Commentsarising from the use of this Draft for Development are requested sothatUK experience can be reported to the European organizationresponsible for itsconversion into a European Standard. A review ofthis publication will be initiated2 years after its publication bythe European organization so that a decision can betaken on itsstatus at the end of its three-year life. The commencement of thereviewperiod will be notified by an announcement in UpdateStandards.According to the replies received by the end of thereview period, the responsibleBSI Committee will decide whether tosupport the conversion into a EuropeanStandard, to extend the lifeof the prestandard or to withdraw it. Comments shouldbe sent inwriting to the Secretary of BSI Subcommittee B/525/2, Structuraluse ofconcrete, at 389 Chiswick High Road, London. W4 4AL, givingthe documentreference and clause number and proposing, wherepossible, an appropriaterevision of the text.A list oforganizations represented on this committee can be obtained onrequest toits secretary.Cross-referencesThe British Standards whichimplement international or European publicationsreferred to in thisdocument may be found in the BSI Standards Catalogue underthesection entitled International Standards Correspondence Index,or by using theFind facility of the BSI Standards ElectronicCatalogue.Summary of pagesThis document comprises a front cover, aninside front cover, the EN title page,pages 2 to 60, an inside backcover and a back cover.The BSI copyright notice displayed in thisdocument indicates when the documentwas last issued.Licensed Copy:London South Bank University, London South Bank University, Fri Oct06 09:18:34 BST 2006, Uncontrolled Copy, (c) BSIEUROPEANPRESTANDARDPRNORME EUROPENNEEUROPISCHE VORNORMENV 13670-1January2000ICS 91.010.30; 91.080.40English versionExecution of concretestructures - Part 1: CommonThis European Prestandard (ENV) wasapproved by CEN on 27 November 1999 as a prospective standard forprovisional application.The period of validity of this ENV islimited initially to three years. After two years the members ofCEN will be requested to submit theircomments, particularly on thequestion whether the ENV can be converted into a EuropeanStandard.CEN members are required to announce the existence of thisENV in the same way as for an EN and to make the ENV availablepromptlyat national level in an appropriate form. It is permissibleto keep conflicting national standards in force (in parallel to theENV) until the finaldecision about the possible conversion of theENV into an EN is reached.CEN members are the national standardsbodies of Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece,Iceland, Ireland, Italy, Luxembourg,Netherlands, Norway, Portugal, Spain, Sweden, Switzerland andUnited Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMI T EUROPENDE NORMALI SATI ONEUROPI SCHES KOMI TEE FR NORMUNGCentralSecretariat: rue de Stassart, 36 B-1050 Brussels 2000 CEN Allrights of exploitation in any form and by any meansreservedworldwide for CEN national Members.Ref. No. ENV13670-1:2000 ELicensed Copy: London South Bank University, LondonSouth Bank University, Fri Oct 06 09:18:34 BST 2006, UncontrolledCopy, (c) BSIPage 2ENV13670-1:2000ContensForeword.......................................................................................................................................................4Introduction..................................................................................................................................................51Scope.....................................................................................................................................................52 References.............................................................................................................................................62.1 Normative references.....................................................................................................................62.2 Informative references...................................................................................................................63Definitions.............................................................................................................................................74 Documentation......................................................................................................................................94.1 Projectspecification.......................................................................................................................94.2 Executiondocumentation...............................................................................................................95 Falsework andformwork.......................................................................................................................95.1 Basicrequirements.........................................................................................................................95.2Materials.......................................................................................................................................105.3Falsework.....................................................................................................................................105.4Formwork.....................................................................................................................................105.5 Specialformwork.........................................................................................................................105.6 Surface finish...............................................................................................................................115.7 Inserts in formwork and embeddedcomponents..........................................................................115.8 Removal of formwork and falsework..........................................................................................116 Reinforcement.....................................................................................................................................126.1 General.........................................................................................................................................126.2Materials.......................................................................................................................................126.3 Bending, cutting, transport and storage of the reinforcement...................................................... 126.4Welding........................................................................................................................................126.5 Joints............................................................................................................................................136.6 Assembly and placing of thereinforcement.................................................................................137Prestressing..........................................................................................................................................137.1 General.........................................................................................................................................137.2 Materials forprestressing.............................................................................................................137.3 Transport and Storage..................................................................................................................147.4 Fabrication oftendons..................................................................................................................147.5 Placing of the tendons..................................................................................................................157.6Tensioning....................................................................................................................................157.7 Protective measures (grouting, greasing, concreting ).................................................................168Concreting...........................................................................................................................................178.1 Specification ofconcrete..............................................................................................................178.2 Delivery, reception and site transport of freshconcrete...............................................................178.3 Pre-concretingoperations.............................................................................................................178.4 Placing and compaction...............................................................................................................188.5 Curing andprotection...................................................................................................................188.6 Post-concretingoperations...........................................................................................................198.7 Special executionmethods...........................................................................................................198.8 Concreting of compositestructures..............................................................................................199 Execution with precast concrete elements and site manufacturedcomponents .................................. 199.1 General.........................................................................................................................................199.2 Factory produced precast elements..............................................................................................209.3 Site manufactured components....................................................................................................20Licensed Copy: London South Bank University, London South BankUniversity, Fri Oct 06 09:18:34 BST 2006, Uncontrolled Copy, (c)BSIPage 3ENV 13670-1:20009.4 Handling and storage....................................................................................................................209.5Placing and adjustment.................................................................................................................209.6Jointing and completion works.....................................................................................................2110Geometricaltolerances.........................................................................................................................2110.1General..........................................................................................................................................2110.2Referencesystem..........................................................................................................................2210.3Base supports(foundations)..........................................................................................................2210.4Columns andwalls........................................................................................................................2310.5Beams andslabs............................................................................................................................2410.6Sections.........................................................................................................................................2510.7Surfaces and edgestraightness......................................................................................................2610.8Tolerances for holes andinserts....................................................................................................2611Inspection.............................................................................................................................................2611.1Inspectionclasses..........................................................................................................................2611.2Inspection of materials and products............................................................................................2711.3Scope for inspection ofexecution.................................................................................................2711.4Inspection of falsework and formwork.........................................................................................2811.5Inspection of reinforcement..........................................................................................................2911.6Inspection ofprestressing..............................................................................................................2911.7Inspection of the concreting operations........................................................................................3011.8Inspection of precast concreteelements........................................................................................3111.9Action in the event of anon-conformity.......................................................................................31AnnexA (informative): Guidance on documentation.................................................................................32AnnexB (informative) : Guidance on falsework andformwork.................................................................37AnnexC (informative): Guidance rules on reinforcement..........................................................................38AnnexD (informative): Guidance onprestressing......................................................................................40AnnexE (informative): Guidance on concreting........................................................................................42AnnexF (informative): Guidance on geometricaltolerances......................................................................45AnnexG (informative): Guidance on inspection........................................................................................50LicensedCopy: London South Bank University, London South Bank University,Fri Oct 06 09:18:34 BST 2006, Uncontrolled Copy, (c) BSIPage 4ENV13670-1:2000ForewordThis European Prestandard has been prepared byTechnical Committee CEN/TC 104 "Concrete(performance, production,placing and compliance criteria)", the secretariat of which is heldby DIN.According to the CEN/CENELEC Internal Regulations, thenational standards organizations of thefollowing countries arebound to announce this European Prestandard: Austria, Belgium,Czech Republic,Denmark, Finland, France, Germany, Greece, Iceland,Ireland, Italy, Luxembourg, Netherlands, Norway,Portugal, Spain,Sweden, Switzerland and the United Kingdom.Because of the closeconnection between design rules and rules for execution, CEN/TC104/SC 2 hasdeveloped this prestandard in conjunction with CEN/TC250/SC 2.This prestandard supersedes the execution and toleranceclauses in ENV 1992-1 Eurocode 2: Design ofconcrete structures andthe execution rules in prEN 206:1997: Concrete - Performance,production,placing and compliance criteria.This prestandardspecifies the required level of execution in assembling productssuch as fresh concrete,reinforcement, precast concrete elementsetc. into a structure that achieves the intended level ofmechanicalresistance and stability.This prestandard has three functions: totransfer the requirements set during design from the designer tothe constructor i.e. to be linkbetween design and execution; togive a set of standardized technical requirements for the executionwhen ordering a concretestructure; to serve as a check list for thedesigner to ensure that he provides the constructor with allrelevanttechnical information for the execution of the structure(see Annex A).Licensed Copy: London South Bank University, LondonSouth Bank University, Fri Oct 06 09:18:34 BST 2006, UncontrolledCopy, (c) BSIPage 5ENV 13670-1:2000Introduction(1) This EuropeanPrestandard assumes: the availability of a comprehensive design ofthe structure a project management in charge of the supervision ofthe works which will ensure the execution of aconforming structure;a site management which will take charge of the organisation of theworks and ensure the correct andsafe use of the equipment andmachinery, the satisfactory quality of materials, the execution ofaconforming structure and its safe use up to the delivery of theworks.When precast elements are used, the following additionalassumptions are made: the availability of a specific design of theprecast elements conforming to the relevant standards theavailability of a design coordination between precast elements andsite manufactured components. a technical specification of theprecast structure with instructions for installation; there is anerection management to direct the erection team.(2) This EuropeanPrestandard presupposes that the work is carried out with thenecessary skill andadequate equipment and resources to perform thework in accordance with the requirements of theprojectspecification and the requirements of this EuropeanPrestandard.It is assumed that generally accepted rules for goodworkmanship for the various activities are known andapplied.(3) Itis assumed that the constructor will conform to provisions valid atthe construction site with respectto: qualifications for thepersonnel doing the various activities covered by this prestandard;health and safety aspects of construction.(4) This prestandardassumes that the finished structure after completion is used asintended in the designand submitted to the planned inspection andmaintenance necessary to achieve the intended design lifeand todetect weaknesses or any unexpected behaviour.1 Scope(1) ThisEuropean Prestandard gives common requirements for execution ofconcrete structures. Inparticular, this part gives requirements forstructures designed according to ENV 1992 -1 and for theconcretepart of composite structures designed according to ENV 1994-1.(2)In the case of civil engineering works, different or additionalrequirements need to be considered and,if required, given in theproject specification.(3) This prestandard permits the projectspecification to state specific requirements relevant totheparticular structure.(4) This prestandard is applicable totemporary as well as permanent concrete structures.(5) Additionalor different requirements should be considered and, if required,given in the projectspecification when using: Lightweight aggregateconcrete; other materials (e.g.fibres) or constituent materials;special technologies/innovate designs.(6) Small and simple concreteworks and secondary structures of minor importance, defined


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