SIST EN 845-3:2004

SLOVENSKI STANDARD
01-januar-2004
1DGRPHãþD
SIST EN 845-3:2002
Specifikacija za dodatne komponente zidovine - 3. del: Jeklene mreže za armiranje
naležnih reg
Specification for ancillary components for masonry - Part 3: Bed joint reinforcement of
steel meshwork
Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil 3: Lagerfugenbewehrung aus
Stahl
Spécification pour composants accessoires de maçonnerie - Partie 3: Treillis d'armature
en acier pour joints horizontaux
Ta slovenski standard je istoveten z: EN 845-3:2003
ICS:
91.060.10
91.080.30
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 845-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2003
ICS 91.060.10; 91.080.30 Supersedes EN 845-3:2001
English version
Specification for ancillary components for masonry - Part 3: Bed
joint reinforcement of steel meshwork
Spécification pour composants accessoires de maçonnerie Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil
- Partie 3: Treillis d'armature en acier pour joints 3: Lagerfugenbewehrung aus Stahl
horizontaux
This European Standard was approved by CEN on 2 October 2002.
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 obtained on application to the 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 and notified to the Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 845-3:2003 E
worldwide for CEN national Members.

Contents Page
Foreword .4
1 Scope.5
2 Normative reference.5
3 Terms, definitions and symbols .6
3.1 Terms and definitions.6
3.2 Symbols .7
4 Materials and types of products.8
4.1 Materials.8
4.2 Types of products .10
4.2.1 General .10
4.2.2 Welded wire meshwork .10
4.2.3 Woven wire meshwork .11
4.2.4 Expanded metal meshwork.11
5 Requirements .12
5.1 General .12
5.2 Product applications and types.12
5.2.1 Products for structural use .12
5.2.2 Products for non-structural use .12
5.3 Dimensions and limit deviations .13
5.3.1 General .13
5.3.2 Determination of wire size.13
5.3.3 Determination of cross-sectional area.14
5.3.4 Determination of other dimensions.14
5.4 Mechanical strength.14
5.4.1 Mechanical strength of bed joint reinforcement for structural applications .14
5.4.2 Mechanical strength of bed joint reinforcement for non-structural applications .15
5.5 Bond strength and lap length .15
5.6 Durability.15
6 Description and designation.16
7 Marking.17
8 Evaluation of conformity .18
8.1 General .18
8.2 Initial type tests .18
8.3 Factory production control .19
8.4 Sampling for initial type testing and independent testing of consignments.19
Annex A (normative) Scheme of factory production control.21
A.1 General .21
A.2 Design .21
A.2.1 Design process.21
A.2.2 Communications .21
A.3 Production .21
A.3.1 Raw or incoming materials .21
A.3.2 Production Process .21
A.3.3 Tests on the finished (or part finished?) product.21
A.3.4 Equipment.22
A.4 Assessment of results and other actions.22
A.4.1 General .22
A.4.2 Assessment of results.22
A.4.3 Records .22
A.4.4 Traceability .22
A.4.5 Corrective action for non-conforming materials and products .22
Annex ZA (informative) Clauses of this European Standard addressing the provisions of
the EU Construction Products Directive .23
Bibliography .28
Foreword
This document (EN 845-3:2003) has been prepared by Technical Committee CEN/TC125 ’Masonry’, the
Secretariat of which is held by BSI, following initial preparation by Working Group 3.
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 2003, and conflicting national standards
shall be withdrawn at the latest by January 2005.
This European standard has been prepared under a mandate given to CEN by the European
Commission and the European Free Trade Association and supports the essential requirements of the
EU Construction Products Directive (89/106/EEC).
For relationship with EU Directives, see informative Annex ZA which is an integral part of this
standard.
In this European Standard the Annex A is normative.
This document supersedes EN 845-3:2001.
This Part has been modified, including the introduction of additional requirements, taking into account
the detailed answer by CEN/TC 125 to EC mandate M116 for masonry as well as details of the
relationship of this new harmonized European standard with the EU Directives.
Specification for ancillary components for masonry” consists of the following Parts:
EN 845 “
— Part 1: Wall ties, tension straps, hangers and brackets.
— Part 2: Lintels.
— Part 3: Bed joint reinforcement of steel meshwork.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Czech
Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg,
Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United
Kingdom.
1 Scope
This European Standard specifies the requirements for masonry bed joint reinforcement for structural
use (see 5.2.1) and for non-structural use (see 5.2.2).
Where products are intended for use in cavity wall construction, this European Standard covers only
the performance of the meshwork as reinforcement in bed joints and not its performance as wall ties
across the cavity.
This European Standard is not applicable to:
a) products in the form of individual bars or rods;
b) products formed from materials other than specified grades of austenitic stainless steel or zinc
pre-coated steel sheet or zinc coated steel wire with or without organic coating.
NOTE Annex ZA refers only to welded wire meshwork intended for structural use for structural use referred
to in 5.2.1 as there are no known regulated requirements for products of this family for non.structural use.
2 Normative reference
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
EN 846-2, Methods of test for ancillary components for masonry — Part 2: Determination of bond
strength of prefabricated bed joint reinforcement in mortar joints.
EN 846-3, Methods of test for ancillary components for masonry — Part 3: Determination of shear
load capacity of welds of prefabricated bed joint reinforcement.
EN 10002-1, Metallic materials; Tensile testing — Part 1: Method of test at ambient temperature.
EN 10002-2, Metallic materials; Tensile testing — Part 2: Verification of the force measuring system
of the tensile testing machines.
EN 10002-4, Metallic materials; Tensile testing — Part 4: Verification of extensometers used in
uniaxial testing.
EN 10020, Definition and classification of grades of steel.
EN 10088-1, Stainless steels — Part 1: List of stainless steels.
EN 10088-2, Stainless steels — Part 2: Technical delivery conditions for sheet/plate and strip for
general purposes.
EN 10088-3, Stainless steels — Part 3: Technical delivery conditions for for semi-finished products,
bars, rods and sections for general purposes.
EN 10142, Continuously hot-dip zinc coated low carbon steels strip and sheet for cold forming
Technical delivery conditions.
EN 10147, Continuously hot-dip zinc coated structural steels strip and sheet Technical delivery
conditions.
EN 10244-1, Steel wire and wire products-Non-ferrous metallic coatings on steel wire — Part 1:
General principles.
EN 10244-2, Steel wire and wire products-Non-ferrous metallic coatings on steel wire — Part 2: Zinc
and zinc alloy coatings.
EN 10245-1, Steel wire and wire products — Organic coatings on steel wire — Part 1: General rules.
EN 1
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