prEN 13670
(Main)Execution of concrete structures
Execution of concrete structures
The project will be the revision of ENV 136-1: 2000 with the intention to convert the prestandard into a European standard. The European standard will provide common requirements for the execution of concrete structures. It will be applicable to temporary as
well as permanent concrete structures. The standard will not cover the specification, production and conformity of concrete as well as contractual issues or responsibilities for the identified actions.
Ausführung von Tragwerken aus Beton
Exécution des structures en béton
Izvajanje betonskih konstrukcij
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 13670:2007
01-maj-2007
Izvajanje betonskih konstrukcij
Execution of concrete structures
Ausführung von Tragwerken aus Beton
Exécution des structures en béton
Ta slovenski standard je istoveten z: prEN 13670
ICS:
91.080.40 Betonske konstrukcije Concrete structures
oSIST prEN 13670:2007 en;fr;de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
DRAFT
prEN 13670
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2007
ICS 91.080.40 Will supersede ENV 13670-1:2000
English Version
Execution of concrete structures
Exécution des structures en béton Ausführung von Tragwerken aus Beton
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 104.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2007 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13670:2007: E
worldwide for CEN national Members.
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prEN 13670:2007 (E)
Contents Page
Foreword.5
Introduction .6
1 Scope .7
2 Normative references .7
3 Definitions .8
4 Execution management .11
4.1 Assumptions .11
4.2 Documentation.11
4.2.1 Execution specification.11
4.2.2 Quality Plan .12
4.2.3 Execution documentation.12
4.2.4 Special documentation .12
4.3 Quality Management.12
4.3.1 Execution classes.12
4.3.2 Inspection of materials and products.12
4.3.3 Inspection of execution.13
4.4 Action in the event of a non-conformity.14
5 Falsework and formwork .14
5.1 Basic requirements.14
5.2 Materials .15
5.2.1 General.15
5.2.2 Release agents.15
5.3 Design and installation of Falsework .15
5.4 Design and installation of Formwork.15
5.5 Special formwork.16
5.6 Inserts in formwork and embedded components .16
5.6.1 General.16
5.6.2 Making good of temporary recess and holes .16
5.7 Removal of formwork and falsework.16
6 Reinforcement.17
6.1 General.17
6.2 Materials .17
6.3 Bending, cutting, transport and storage of the reinforcement .17
6.4 Welding .18
6.5 Joints .18
6.6 Assembly and placing of the reinforcement.18
7 Prestressing .19
7.1 General.19
7.2 Materials for prestressing.19
7.2.1 Post-tensioning systems .19
7.2.2 Sheaths .19
7.2.3 Tensile elements.19
7.2.4 Anchorage elements and accessories .20
7.2.5 Tendon supports.20
7.2.6 Cement-based grout.20
7.2.7 Grease, wax or other products.20
7.3 Transport and storage.20
7.4 Installation of tendons .20
7.4.1 General.20
7.4.2 Pre-tensioned tendons.20
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prEN 13670:2007 (E)
7.4.3 Post-tensioned bonded tendons .21
7.4.4 Internal and external unbonded tendons.21
7.5 Tensioning .21
7.5.1 General .21
7.5.2 Pre-tensioned tendons.21
7.5.3 Post-tensioned bonded tendons .21
7.5.4 Internal and external unbonded tendons.22
7.6 Protective measures (grouting, greasing) .22
7.6.1 General .22
7.6.2 Pre-tensioned tendons.22
7.6.3 Post-tensioned bonded tendons .22
7.6.4 Internal or external unbonded tendons.22
7.6.5 Grouting operations .22
7.6.6 Greasing operations.22
8 Concreting.23
8.1 Specification of concrete.23
8.2 Pre-concreting operations.23
8.3 Delivery, reception and site transport of fresh concrete .23
8.4 Placing and compaction .24
8.4.1 General .24
8.4.2 Lightweight Aggregate Concrete.24
8.4.3 Self Compacting Concrete.24
8.4.4 Sprayed concrete .24
8.4.5 Slipforming.24
8.4.6 Underwater concreting .25
8.5 Curing and protection.25
8.6 Post-concreting operations.26
8.7 Concreting of composite structures .26
8.8 Surface Finish.26
9 Execution with precast concrete elements.26
9.1 General .26
9.2 Factory produced precast elements.27
9.3 Site manufactured components.27
9.4 Handling and storage.27
9.4.1 General .27
9.4.2 Handling .27
9.4.3 Storage .27
9.5 Placing and adjustment .27
9.5.1 General .27
9.5.2 Placing.28
9.6 Jointing and completion works .28
9.6.1 General .28
9.6.2 In situ works.28
9.6.3 Structural joints .28
10 Geometrical tolerances.29
10.1 General .29
10.2 Reference system.30
10.3 Base supports (foundations).30
10.4 Columns and walls .30
10.5 Beams and slabs .32
10.6 Sections.32
10.7 Surfaces and edge straightness .35
10.8 Tolerances for holes and inserts .35
Annex A (informative) Guidance on documentation .36
Annex B (informative) Guidance on Quality Management.40
Annex C (informative) Guidance on falsework and formwork.42
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prEN 13670:2007 (E)
Annex D (informative) Guidance on reinforcement .44
Annex E (informative) Guidance on prestressing .45
Annex F (informative) Guidance on concreting .47
Annex G (informative) Guidance on geometrical tolerances.53
Annex H (informative) Guidance on National Annex .60
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prEN 13670:2007 (E)
Foreword
This document (prEN 13670:2007) has been prepared by Technical Committee CEN/TC 104 “Concrete and
related products”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede ENV 13670-1:2000.
Because of the close connection between design rules and rules for execution, CEN/TC 104/SC 2 has
developed this standard in liaison with CEN/TC 250/SC 2, and CEN TC 229.
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prEN 13670:2007 (E)
Introduction
This European Standard applies to the execution of concrete structures to achieve the intended level of safety
and serviceability during its service life, as given by EN 1990 – Basis of structural design, and
EN 1992 – Design of concrete structures and EN 1994 Design of composite steel and concrete structures,
with the Nationally Determined Parameters (NDPs) applicable in the place of use.
This European Standard has three functions:
– to transfer the requirements set during design to the constructor i.e. to be link between design and
execution;
– to give a set of standardized technical requirements for the execution when ordering a concrete structure;
− to serve as a check list for the designer to ensure that he provides the constructor with all relevant
technical information for the execution of the structure (see Annex A).
In order to achieve these objectives the design shall result in a set of documents and drawings giving all
information required for the execution of the work in accordance with the plans. This set of documents is in
this European Standard referred to as the "execution specification". The standard leaves a number of items
open to be decided in the execution specification.
In areas where national provisions shall apply these should be referred in the execution specification.
It is in this European Standard recognised that areas such as detailed requirements for competence of
personnel, and details related to the Quality Management are within the competence of the Member States.
If the national CEN member publishes a National Annex to this Standard, it may refer to national standards
approved and published by the CEN member or national provisions, which supplement this standard,
alternatively the supplementing rules can be given directly in the National Annex.
National building legislation
and
National building regulation
(in the place of use)
EN 1990 (Eurocode)
Basis of structural design
EN 1992 (Eurocode 2)
Design of concrete structures
EN 13670
Execution of concrete structures
EN 206-1 EN 10080 prEN 10138 or ETA EN 13369 and hEN's for
Concrete Reinforcement Tendons & PT kits
Precast concrete products
Product and test Product and test Product and test Product and test
standards standards standards standards
System of European Standards as basis for design, execution and materials selection for concrete
works (only main modules)
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prEN 13670:2007 (E)
1 Scope
(1) This European Standard gives common requirements for execution of concrete structures.
(2) This standard expects the execution specification to state all the specific requirements relevant to the
particular structure.
(3) This standard is applicable to temporary as well as permanent concrete structures.
(4) Additional or different requirements should be considered and, if required, given in the execution
specification when using:
– lightweight aggregate concrete;
– other materials (e.g. fibres) or constituent materials;
− special technologies/innovative designs.
(5) This standard does not apply to concrete members used only as equipment or construction aids for the
execution.
(6) This standard does not cover the specification, production and conformity of concrete.
(7) This standard is not applicable to the production of precast concrete elements made in accordance with
product standards.
(8) This standard does not cover the requirements for concrete members in special geotechnical works such
as pile foundations, ground anchors, slurry walls, etc.
(9) This standard does not cover safety and health aspects of execution, or third party safety requirements.
(10) This standard does not cover contractual issues or responsibilities for the identified actions.
2 Normative references
(1) 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
document (including any amendments) applies.
EN 206-1 Concrete – Part 1: Specification, performance, production and conformity
EN 446 Grout for prestressing tendons – Grouting procedures
EN 447 Grout for prestressing tendons – Specifications for common grout
EN 523 Steel strip sheaths for prestressing tendons – Terminology – Requirements and quality control
EN 1065 Adjustable telescopic steel props – Product specifications, design and assessment by
calculation and tests
EN 1990 Eurocode – Basis of structural design
EN 1991 Eurocode 1: Actions on structures
EN 1992 Eurocode 2: Design of concrete structures
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prEN 13670:2007 (E)
EN 1994 Eurocode 4: Design of composite steel and concrete structures
EN10080 Steel for the reinforcement of concrete – Weldable reinforcing steel
1)
prEN 10138 Prestressing steels
prEN ISO 17660-1 Welding – Welding of reinforcing steel – Part 1: Load bearing welded joints
prEN ISO 17660-2 Welding – Welding of reinforcing steel – Part 2: Non-load bearing welded joints
3 Definitions
For the purposes of this standard, the following definitions apply:
3.1
backpropping
propping installed at levels below the slab that supports the falsework in order to distribute the load to suitable
support
3.2
chair for reinforcement
device used to secure the position between reinforcement layers e.g. supporting top reinforcement in a slab
3.3
construction works
everything that is constructed or results from construction operations (EN 1990)
NOTE The term covers both building and civil engineering works. It refers to the complete construction comprising
both structural and non-structural components
3.4
constructor
the organization executing the works
3.5
erection specification
documents covering all drawings, technical data and requirements required for the safe erection of precast
elements
3.6
execution
all activities carried out for the physical completion of the work, i.e. procurement, scaffolding, formwork,
reinforcing, concreting, curing, erection of precast elements etc., and the inspection and documentation
thereof
3.7
execution class
classified set of requirements specifying quality levels for the execution of the works generally or an individual
component
1) European Standard for prestressing steels (prEN 10138) is presently in preparation. Until it is issued and
implemented, national standards apply, in lieu of national standards ISO 6934 may be applied.
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prEN 13670:2007 (E)
3.8
execution specification
documents covering all drawings, technical data and requirements necessary for the execution of a particular
project prepared supplementing and qualifying the requirements of this European Standard, as well as
referring the national provisions relevant in the place of use
NOTE The execution specification is not one document but signifies the total sum of documents required for the
execution of the work as provided by design to the constructor. and includes the project specification.
3.9
falsework
temporary support for a part of a structure while it is not self-supporting and for associated service load
3.10
formwork
a structure, permanent or temporary, for containing poured concrete, moulding it to the required dimensions
and supporting it until it is able to support itself. Formwork consists of the face contact material and the
bearers directly supporting the face contact material
3.11
inspection
conformity evaluation by observation and judgement accompanied as appropriate by measurement, testing or
gauging
[EN-ISO 9000]
3.12
method statement
documentation describing the methods and procedures to be used to perform the work
3.13
permitted deviation
permitted algebraic differences between the limits of size and the corresponding reference size (see
ISO 1803-1 Building construction – Tolerances – Vocabulary – Part 1: General terms)
3.14
precast concrete element
concrete element cast and cured in a place other than the final location of use (factory produced or site
manufactured). Precast concrete element manufactured in compliance with relevant European product
standard is called precast concrete product
NOTE In this standard the shorter terms "precast element" and "precast product" are used.
3.15
project specification
a project specific document describing the requirements applicable for the particular project
3.16
quality plan
document specifying which procedures and associated resources shall be applied by whom and when to meet
the requirements of the specific project
3.17
reference line
line defined in the execution specification to which sizes are related
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prEN 13670:2007 (E)
3.18
secondary line
any line used for the purpose of setting-out the proposed building and for checking the conformity of the
building or building parts (see ISO 4463-1:1998 Measurement methods for building. Setting out
measurements - Part 1: Planning and organization measuring procedures, acceptance criteria)
3.19
spacer
device used to secure correct spacing between the form and the reinforcement
3.20
surface finish
description of the appearance of the concrete surface including aspects of geometry, texture, colour etc.
3.21
temporary structure
structure designed for a short design working life (see EN 1990)
3.22
tolerance
difference between upper limit of size and the lower limit of size (see ISO 1803 Building construction –
Tolerances-Expression of dimensional accuracy – Principles and terminology)
Tolerances for precast concrete elements are subdivided as follows:
– production tolerances i.e. geometrical tolerances as defined in the product standards;
– erection tolerances i.e. geometrical to
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