prEN 845-3
(Main)Specification for ancillary components for masonry - Part 3: Bed joint reinforcement of steel meshwork
Specification for ancillary components for masonry - Part 3: Bed joint reinforcement of steel meshwork
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).
Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil 3: Lagerfugenbewehrung aus Stahl
Diese Europäische Norm legt die Anforderungen an Lagerfugenbewehrung für Mauerwerk für Konstruktionen mit Bemessung (siehe 5.2.1) sowie für Konstruktionen ohne Bemessung (siehe 5.2.2) fest.
Für Produkte zur Verwendung in zweischaligem Mauerwerk wird in dieser Europäischen Norm lediglich das Verhalten von Stahldrahtgittern als Bewehrung in Lagerfugen, nicht jedoch das Verhalten als Luftschichtanker behandelt.
Diese Europäische Norm gilt nicht für:
a) Produkte in Form einzelner Flach- oder Rundstäbe;
b) Produkte, die nicht aus austenitischem rostfreien Stahl der festgelegten Güte, Stahlblech mit Zink-Vorbeschichtung oder verzinktem Stahldraht mit oder ohne organischen Überzug bestehen.
ANMERKUNG Der Anhang ZA bezieht sich nur auf geschweißte Stahldrahtgitter für tragende Zwecke für die in 5.2.1 genannten Verwendungszwecke, da keine gesetzlich geregelten Anforderungen an Produkte dieser Familie für Konstruktionen ohne Bemessung bekannt sind.
Spécifications pour composants accessoires de maçonnerie - Partie 3 : Treillis d'armature en acier pour joints horizontaux
La présente Norme européenne spécifie les prescriptions concernant les treillis d'armature pour les joints horizontaux de maçonnerie à usage structurel (voir 5.2.1) et non structurel (voir 5.2.2).
Dans le cas où les produits sont destinés à être utilisés dans la construction de murs doubles, la présente Norme européenne couvre uniquement les performances du treillis employé comme armature pour les joints horizontaux et ne s'applique pas aux performances du treillis utilisé comme attache pour mur double traversant la cavité.
Les produis suivants ne sont pas couverts par la présente Norme européenne :
a) produits sous forme de barres ou de tiges individuelles ;
b) produits fabriqués à partir de matériaux autres que les classes spécifiées d'acier inoxydable austénitique, la tôle d'acier pré-galvanisé ou le fil d'acier galvanisé, avec ou sans revêtement organique.
NOTE En l'absence de prescriptions réglementées connues pour les treillis en fils soudés destinés à un usage non structurel, l'Annexe ZA fait uniquement référence aux treillis en fils soudé destinés à un usage structurel tel qu'indiqué en 5.2.1.
Specifikacija za dodatne komponente zidovja - 3. del: Jeklene mreže za armiranje naležnih reg
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2010
Specifikacija za dodatne komponente zidovja - 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
Ta slovenski standard je istoveten z: prEN 845-3
ICS:
91.060.10 Stene. Predelne stene. Walls. Partitions. Facades
Fasade
91.080.30 Zidane konstrukcije Masonry
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
DRAFT
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2010
ICS 91.080.30 Will supersede EN 845-3:2003+A1:2008
English Version
Specification for ancillary components for masonry - Part 3: Bed
joint reinforcement of steel meshwork
Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil
3: Lagerfugenbewehrung aus Stahl
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 125.
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, Croatia, 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: Avenue Marnix 17, B-1000 Brussels
© 2010 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 845-3:2010: E
worldwide for CEN national Members.
Contents Page
Foreword . 3
1 Scope. 4
2 Normative reference . 4
3 Terms, definitions and symbols . 5
3.1 Terms and definitions . 5
3.2 Symbols . 6
4 Materials and types of products . 7
4.1 Materials . 7
4.2 Types of products . 9
5 Requirements . 10
5.1 General . 10
5.2 Product applications and types . 11
5.3 Dimensions and limit deviations . 11
5.4 Mechanical strength . 13
5.5 Bond strength and lap length . 14
5.6 Durability . 14
6 Description and designation . 14
7 Marking . 15
8 Evaluation of conformity . 16
8.1 General . 16
8.2 Initial type tests . 16
8.3 Factory production control . 17
8.4 Sampling for initial type testing and independent testing of consignments . 17
Annex A (normative) Scheme of factory production control . 18
A.1 General . 18
A.2 Design . 18
A.3 Production . 18
A.4 Assessment of results and other actions. 19
Annex ZA (informative) Clauses of this European Standard addressing the provisions
of the EU Construction Products Directive . 20
Bibliography . 25
Foreword
This document (prEN 845-3:2010) has been prepared by Technical Committee CEN/TC 125
“Masonry”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 845-3:2003+A1:2008.
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 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.
EN 845 “Specification for ancillary components for masonry” consists of the following Parts:
— Part 1: Wall ties, tension straps, hangers and brackets.
— Part 2: Lintels.
— Part 3: Bed joint reinforcement of steel meshwork.
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 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 of
corrosion resisting steels for general purposes.
EN 10088-3, Stainless steels — Part 3: Technical delivery conditions for semi-finished products, bars,
rods, wire, sections and bright products of corrosion resisting steels for general purposes.
EN 10143, Continuously hot-dip coated steel sheet and strip — Tolerances on dimensions and shape.
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 10245-2, Steel wire and wire products — Organic coatings on steel wire — Part 2: PVC finished
wire.
EN 10245-3, Steel wire and wire products — Organic coatings on steel wire — Part 3: PE coated wire.
EN 10326, Continuously hot-dip coated strip and sheet of structural steels — Technical delivery conditions.
EN 10327, Continuously hot-dip coated strip and sheet of low carbon steels for cold forming —
Technical delivery conditions
EN ISO 15630–1, Steel for the reinforcement and prestressing of concrete — Test methods —
Part 1: Reinforcing bars, wire rod and wire
EN ISO 15630–2, Steel for the reinforcement and prestressing of concrete — Test methods —
Part 2: Welded fabric
ISO 7500-1, Metallic materials — Verification of static uniaxial testing machines —
Part 1: Tension/compression testing machines — Verification and calibration of the force-measuring system
ISO 9513, Metallic materials — Calibration of extensometers used in uniaxial testing
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
3.1.1
bed joint
mortar layer between the bed faces of masonry units
3.1.2
bed joint reinforcement
steel reinforcement that is prefabricated for building into a bed joint
3.1.3
bond strength
tensile load that can be resisted by a specified length of reinforcement in a masonry bed joint
3.1.4
characteristic yield strength
the value of the yield strength above which 95 % of all the individual test results occur
3.1.5
cross-wires
wires which connect longitudinal wires
3.1.6
declared value
value for a product property, determined in accordance with this standard, that a manufacturer is
confident of achieving bearing in mind the variability of the manufacturing process
3.1.7
element
complete length of bed joint reinforcement either in straight cut lengths or in a roll
3.1.8
lap length
minimum length of a piece of bed joint reinforcement running parallel with the next piece in order to
maintain the full effectiveness of the reinforcement in the masonry bed joint
3.1.9
longitudinal wire
wire placed parallel to the length of the masonry
3.1.10
meshwork
network created with welded or woven wires or as a result of expanding a strip with a series of parallel
slits
3.1.11
profile height
maximum overall height (distance between the upper and lower surfaces at right angles to the length
and width of the joint) of the embedded portion of the bed joint reinforcement
3.1.12
shear load capacity
mean value for sample of product specimens of the failure loads at the junction between two wires
loaded in the direction of the longitudinal axis in the plane of the bed joint reinforcement
3.1.13
width
overall dimension in the plane of the bed joint reinforcement measured perpendicular to the
longitudinal axis
3.1.14
wire
longitudinal cold drawn metal of any cross-sectional shape
3.1.15
wire size
diameter in millimetres of a circle with an area equal to the cross-sectional area of the wire
3.2 Symbols
A is the cross-sectional area of deformed plain wire, in mm ;
c
A is the cross-sectional area of bed joint reinforcement, in mm ;
e
A is the percentage total elongation at maximum force (F ), in %;
gt m
a is the width of the bed joint reinforcement, in mm;
b is the pitch of the cross-wire, in mm;
c is the wire size of the longitudinal wires, in mm;
d is the wire size of the cross-wires, in mm;
e is the pitch of the longitudinal wires in woven wire meshwor
...
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