SIST EN 845-1:2004+A1:2008
(Main)Specification for ancillary components for masonry - Part 1: Ties, tension straps, hangers and brackets
Specification for ancillary components for masonry - Part 1: Ties, tension straps, hangers and brackets
This European Standard specifies requirements for wall ties, tension straps, hangers and brackets for interconnecting masonry and for connecting masonry to other parts of works and buildings including walls, floors, beams, and columns. Where anchors or fasteners are supplied or specified as part of an ancillary component, the requirements including performance requirements apply to the complete product. This European Standard is not applicable to: a) anchors and fasteners other than as part of an ancillary component; b) shelf angles; c) wall starter plates for tying into existing walls; d) products formed from materials other than: 1) austenitic stainless steel (molybdenum chrome nickel alloys or chrome nickel alloys); 2) ferritic stainless steel; 3) copper; 4) phosphor bronze; 5) aluminium bronze; 6) zinc-coated-steel with or without organic coating; 7) polypropylene; 8) polyamide (for expansion plugs only).
Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil 1: Maueranker, Zugbänder, Auflager und Konsolen
Diese Europäische Norm legt die Anforderungen an Maueranker, Zugbänder, Auflager und Konsolen zur Verbindung von Bauteilen aus Mauerwerk untereinander und zur Verbindung von Mauerwerk mit anderen Teilen von baulichen Anlagen und Gebäuden einschließlich Wänden, Geschossdecken, Trägern und Stützen fest. Sofern Anker oder Befestigungsmittel als Teil eines Ergänzungsbauteils geliefert werden oder als solches festgelegt sind, gelten die Anforderungen einschließlich der Leistungsanforderungen für das vollständige Produkt.
Diese Europäische Norm gilt nicht für:
a) Anker und Befestigungsmittel, die nicht Teil eines Ergänzungsbauteils sind;
b) Wandabfangungen;
c) Wandanschlussplatten für die Verankerung in bestehenden Wänden;
d) Produkte aus anderen Materialien als:
1) austenitischer nichtrostender Stahl (Molybdän-Chrom-Nickel-Legierungen bzw. Chrom-Nickel- Legierungen);
2) ferritischer nichtrostender Stahl;
3) Kupfer;
4) Phosphorbronze;
5) Aluminiumbronze;
6) verzinktes Stahlblech mit oder ohne organischen Überzug;
7) Polypropylen;
8) Polyamid (nur Spreizdübel).
ANMERKUNG Es ist nicht möglich, den Feuerwiderstand der hierin aufgeführten Produkte unabhängig vom Mauerwerksbauteil, mit dem sie eine Einheit bilden, zu beurteilen. Der Feuerwiderstand ist daher nicht Gegenstand dieser Europäischen Norm.
Spécification pour composants accessoires de maçonnerie - Partie 1: Attaches, brides de fixation, étriers de support et consoles
La présente Norme européenne spécifie les prescriptions concernant les attaches, brides de fixation, brides de
suspension et consoles utilisées pour assurer les liaisons entre des maçonneries et les liaisons entre la
maçonnerie et d’autres parties de l’ouvrage ou de la construction, incluant les murs, planchers, poutres et poteaux.
Lorsque des éléments d’ancrage ou de fixation sont fournis ou spécifiés comme partie intégrante d’un composant
accessoire, les prescriptions, y compris les prescriptions de performances, s’appliquent au produit complet.
La présente Norme européenne n'est pas applicable aux :
a) éléments d’ancrage et de fixation autres que ceux qui font partie intégrante d’un composant accessoire ;
b) cornières supports ;
c) plaques supports de mur destinées à assurer la fixation avec des murs existants ;
d) produits composés de matériaux autres que les suivants :
1) acier inoxydable austénitique (alliages molybdène chrome nickel ou alliages chrome nickel) ;
2) acier inoxydable ferritique ;
3) cuivre ;
4) bronze phosphorique ;
5) bronze alumineux ;
6) acier galvanisé avec ou sans revêtement organique ;
7) polypropylène ;
8) polyamide (uniquement pour les chevilles à expansion).
NOTE La résistance au feu des produits inclus ci-après ne peut être évaluée séparément de l’élément de maçonnerie dont ils
font partie et n’est, par conséquent, pas couverte par le domaine d’application de la présente partie de cette
Norme européenne.
Specifikacija za dodatne komponente zidovja - 1. del: Vezna stremena, sidrni trakovi, obešala in konzole
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 845-1:2004+A1:2008
01-julij-2008
Specifikacija za dodatne komponente zidovja - 1. del: Vezna stremena, sidrni
trakovi, obešala in konzole
Specification for ancillary components for masonry - Part 1: Ties, tension straps, hangers
and brackets
Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil 1: Maueranker, Zugbänder,
Auflager und Konsolen
Spécification pour composants accessoires de maçonnerie - Partie 1: Attaches, brides
de fixation, étriers de support et consoles
Ta slovenski standard je istoveten z: EN 845-1:2003+A1:2008
ICS:
91.060.10 Stene. Predelne stene. Walls. Partitions. Facades
Fasade
91.080.30 Zidane konstrukcije Masonry
SIST EN 845-1:2004+A1:2008 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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EUROPEAN STANDARD
EN 845-1:2003+A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2008
ICS 91.060.10; 91.080.30 Supersedes EN 845-1:2003
English Version
Specification for ancillary components for masonry - Part 1: Ties,
tension straps, hangers and brackets
Spécification pour composants accessoires de maçonnerie Festlegungen für Ergänzungsbauteile für Mauerwerk - Teil
- Partie 1: Attaches, brides de fixation, étriers de support et 1: Maueranker, Zugbänder, Auflager und Konsolen
consoles
This European Standard was approved by CEN on 2 October 2002 and includes Amendment 1 approved by CEN on 2 December 2007.
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 CEN 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 845-1:2003+A1:2008: E
worldwide for CEN national Members.
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EN 845-1:2003+A1:2008 (E)
Contents
page
Foreword. 3
1 Scope. 4
2 Normative references . 4
3 Terms, definitions and symbols . 6
3.1 Terms and definitions. 6
3.2 Symbols . 9
4 Materials. 9
4.1 General. 9
4.2 Fixings and materials not supplied by the manufacturer. 9
5 Requirements . 9
5.1 General. 9
5.2 Dimensions and limit deviations .10
5.3 Mechanical strength . 11
5.4 Resistance to water crossing a cavity. 14
5.5 Safety during installation . 14
5.6 Durability. 14
6 Description and designation. 14
7 Marking . 16
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) Materials and protective coatings. 19
Annex B (normative) Scheme of factory production control. 24
Annex ZA (informative) Clauses of this European Standard addressing the provisions of
the EU Construction Products Directive . 26
Bibliography . 56
2
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EN 845-1:2003+A1:2008 (E)
Foreword
This document (EN 845-1:2003+A1:2008) has been prepared by Technical Committee CEN/TC 125
"Masonry", the secretariat of which is held by BSI.
This document shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by August 2008 and conflicting national standards shall be
withdrawn at the latest by August 2008.
This document 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
document.
This document includes Amendment 1 approved by CEN on 2007-12-02.
This document supersedes !EN 845-1:2003".
The start and finish of text introduced or altered by amendment is indicated in the text by tags ! ".
In this European Standard the Annexes A and B are 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.
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, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
3
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EN 845-1:2003+A1:2008 (E)
1 Scope
This European Standard specifies requirements for wall ties, tension straps, hangers and brackets for
interconnecting masonry and for connecting masonry to other parts of works and buildings including
walls, floors, beams, and columns. Where anchors or fasteners are supplied or specified as part of an
ancillary component, the requirements including performance requirements apply to the complete
product.
This European Standard is not applicable to:
a) anchors and fasteners other than as part of an ancillary component;
b) shelf angles;
c) wall starter plates for tying into existing walls;
d) products formed from materials other than:
1) austenitic stainless steel (molybdenum chrome nickel alloys or chrome nickel alloys);
2) ferritic stainless steel;
3) copper;
4) phosphor bronze;
5) aluminium bronze;
6) zinc-coated-steel with or without organic coating;
7) polypropylene;
8) polyamide (for expansion plugs only).
NOTE The resistance fire performance of the products included herein cannot be assessed separately from
the masonry element of which they are part and is therefore not covered under the scope of this part of this
European Standard.
2 Normative references
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 846-4, Methods of test for ancillary components for masonry — Part 4: Determination of load
capacity and load-deflection characteristics of straps
EN 846-5, !Methods of test for ancillary components for masonry — Part 5: Determination of tensile
and compressive load capacity and load displacement characteristics of wall ties (couple test)"
EN 846-6, !Methods of test for ancillary components for masonry — Part 6: Determination of tensile
and compressive load capacity and load displacement characteristics of wall ties (single end test)"
EN 846-7, Methods of test for ancillary components for masonry — Part 7: Determination of shear
load capacity and load displacement characteristics of shear ties and slip ties (couplet test for mortar
joint connections)
4
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EN 845-1:2003+A1:2008 (E)
EN 846-8, Methods of test for ancillary components for masonry — Part 8: Determination of load
capacity and load-deflection characteristics of joist hangers
EN 846-10, Methods of test for ancillary components for masonry — Part 10: Determination of load
capacity and load-deflection characteristics of brackets
EN 846-13:2001, Methods of test for ancillary components for masonry — Part 13: Determination of
resistance to impact, abrasion and corrosion of organic coatings
EN 10020, Definitions 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"
!deleted text"
!EN 10143:2006, Continuously hot-dip coated steel sheet and strip — Tolerances on dimensions
and shape"
!deleted text"
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 or 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 1461, !Hot dip galvanized coatings on fabricated iron and steel articles — Specifications
and test methods (ISO 1461:1999)"
EN ISO 1463, !Metallic and oxide coatings — Measurement of coating thickness — Microscopical
method (ISO 1463:2003)"
ISO 75-1, Plastics — Determination of temperature of deflection under load — Part 1: General test
method
ISO 75-2, !Plastics — Determination of temperature of deflection under load — Part 2: Plastics and
ebonite"
5
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EN 845-1:2003+A1:2008 (E)
ISO 178, Plastics — Determination of flexural properties
!ISO 180:2000", Plastics — Determination of Izod impact strength
ISO 306, Plastics — Thermoplastic materials — Determination of Vicat Softening Temperature (VST)
ISO 427, Wrought copper-tin alloys — Chemical composition and forms of wrought products
ISO 428, Wrought copper-aluminium alloys — Chemical composition and forms of wrought products
ISO 431, Copper refinery shapes
ISO 527-1, Plastics — Determination of tensile properties — Part 1: General principles
ISO 527-2, Plastics — Determination of tensile properties — Part 2: Test conditions for moulding and
extrusion plastics
ISO 1133, Plastics — Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate
(MVR) of thermoplastics
ISO 1183, !Plastics — Methods for determining the density of non-cellular plastics"
ISO 2039-2, Plastics — Determination of hardness — Part 2: Rockwell hardness
3 Terms, definitions and symbols
3.1 Terms and definitions
For the purposes of this European Standard the following terms and definitions apply.
NOTE Dimensions and terms relating to wall ties are given in Figure 1.
3.1.1
asymmetrical tie
1) wall tie which is of a different physical design at either end over its embedment depth (or end
fixing). The centre section may be symmetrical or asymmetrical in detail
NOTE 1 Examples are given in Figure 2 a).
2) wall tie which is physically identical at either end over its embedment depth (or end fixing) but
which is fixed in a different manner at each end is also defined as asymmetrical for the purposes
of the test procedure
NOTE 2 Examples are given in Figure 2 b).
3.1.2
bracket
device attached to structural elements, comprising an individual support for two adjacent masonry
units, which form part of a masonry wall
NOTE Examples are given in Figure 3.
3.1.3
cavity wall tie
device for connecting a masonry leaf across a cavity to another masonry leaf or to a structural frame
to resist tension and compression forces while allowing limited differential movement in the plane of
the wall
6
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EN 845-1:2003+A1:2008 (E)
NOTE 1 Examples are given in Figures 2 and 4.
NOTE 2 Wall ties are further sub classified as asymmetrical or symmetrical and as horizontal, slope-tolerant
or movement-tolerant. Examples are given in Figures 2, 4 and 5 respectively.
3.1.4
cavity width
distance between the cavity faces of the masonry leaves of a cavity wall, measured perpendicular to
the plane of the wall
3.1.5
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
3.1.6
design embedment length
length of a wall tie, strap or hanger designed to be embedded in mortar (see Figure 1)
3.1.7
fixing
device, (e.g. a nail, screw, screw/plug, anchor or bolt) used to connect ancillary components to
masonry or to supporting structures to resist tension and shear forces
3.1.8
horizontal wall tie
cavity wall tie which is designed to be installed approximately horizontally and in the plane of the
mortar joint across a cavity
NOTE Examples are given in Figures 2, and 4.
3.1.9
joist hanger (face fixing type)
device for supporting a joist, beam, truss or rafter on a masonry wall via fixing bolts or screws
NOTE Examples are given in Figure 6.
3.1.10
joist hanger (joint fixing type)
device for supporting a joist, beam, truss or rafter on a masonry wall by direct loading via a flange
which is embedded in a mortar joint
NOTE Examples are given in Figure 7.
3.1.11
1)
load capacity
individual value of the failure load, or load at an extreme displacement, given in the appropriate test
method, whichever is the lesser
3.1.12
tensile/compressive/shear load capacity
mean of the load capacities of the wall ties when tested in tension/compression/shear
1) A convention has been adopted in this standard for terminology relating to the term ‘load capacity’. It is also used in the
EN 846 test methods which support EN 845. This term without a preceding qualifying adjective as shown in 3.1.11 denotes an
individual value of ‘load capacity’, i.e. the result of one measurement on one specimen. Where the term is used with a
preceding qualifying adjective e.g. ‘tensile load capacity’ (see 3.1.12) this relates to the mean of the load capacities from a
number of specimens tested.
7
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EN 845-1:2003+A1:2008 (E)
3.1.13
vertical load capacity
mean of the load capacities of the joist hangers/brackets when tested
3.1.14
movement-tolerant cavity wall tie
cavity wall tie which is designed to allow large in-plane differential movements of the walls, without
generating large shear stresses, by the use of flexible body materials, free-running slot systems,
articulated joints or other means
NOTE Examples are given in Figures 8 and 9 c).
3.1.15
profile height
maximum overall height (distance between the upper and lower surface at right angles to the length
and width of the joint) of the embedded portion of a wall tie, strap or hanger (see Figure 1)
3.1.16
shear tie
wall tie designed to transmit shear, tension and compression forces between two adjacent sections of
masonry or between structural frames and masonry
NOTE Shear ties are sub-classified as symmetrical or asymmetrical. (Examples are given in Figure 10).
3.1.17
slip tie (general purpose)
wall tie designed to transmit only shear forces between two adjacent sections of masonry or between
masonry and structural frames while allowing in-plane movement
NOTE Examples are given in Figure 11.
3.1.18
slip tie (wall-head restraint type)
wall tie designed to transmit shear forces between masonry and structural frames while allowing
vertical in-plane movement
NOTE Examples are given in Figure 12.
3.1.19
slope-tolerant tie
cavity wall tie designed to function satisfactorily with a significant slope from the horizontal
NOTE Examples are given in Figure 5.
3.1.20
slot tie
wall tie whose end fixing (at one end) is by means of engaging a re-entrant key (e.g. dovetail) into a
slot either embedded in a concrete wall or surface fixed to concrete, steel or masonry walls or frame
elements and which is free to slide in the slot either only during installation (for adjustment purposes)
or both during installation and while in service (to allow differential movement)
NOTE Examples are given in Figure 9.
3.1.21
symmetrical tie
wall tie which is physically identical at each end over its embedment depth (or end fixing) and which is
fixed in an identical manner at each end
NOTE 1 The centre section may be symmetrical or asymmetrical in detail.
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EN 845-1:2003+A1:2008 (E)
NOTE 2 Examples are given in Figure 4.
3.1.22
tension strap
device for connecting masonry walls to other adjacent components such as floors and roofs and
which resists tension forces
NOTE Examples are given in Figure 13.
3.1.23
wall tie
device capable of transferring loads between masonry leaves or between masonry and other
structures, in order to limit their relative movement in purely one or more planes, as required
NOTE Examples are given in Figures 1, 2, 4, 8, and 10.
3.2 Symbols
L the overall perpendicular length of a bracket from the fixing surface to the extremity of the
support flange, in mm.
NOTE Examples are given in Figure 3.
4 Materials
4.1 General
Materials for the manufacture of components covered by this standard shall be selected from Annex A
and the material/coating reference shall be declared. The materials within a product, including those
for any fixings, shall be compatible and stainless steel shall not be in contact with other types of steel.
4.2 Fixings and materials not supplied by the manufacturer
The manufacturer shall declare the combinations of masonry units, mortars and fixings (where
appropriate) for which the relevant declared values of product performance characteristics are valid.
Unless otherwise chosen by the manufacturer, the products shall be tested using masonry units
2
conforming to EN 771 with a normalized compressive strength of not greater than 5 N/mm and
general purpose mortar conforming to EN 998-2 with a compressive strength not greater than
2
1,5 N/mm .
Where the fixings are not supplied as part of the product, fixings in accordance with a European
Standard or European Technical Approval shall be specified. The materials for such fixings shall be
compatible with that of the component.
5 Requirements
5.1 General
The requirements and properties specified in this standard shall be defined in terms of the test
methods and procedures referred to in this European Standard.
NOTE The conformity criteria given in 5.2 to 5.6 inclusive relate to initial type tests (see 8.2) and when
relevant consignment testing (see 8.4).
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EN 845-1:2003+A1:2008 (E)
For production evaluation, conformity criteria in the factory production control documentation shall be
defined.
5.2 Dimensions and limit deviations
5.2.1 Method of measurement and accuracy
Dimensions shall be measured using a calibrated device capable of achieving an error limit of ± 1 %.
5.2.2 Length, applicable cavity width, embedment and fixings (number, size and location)
5.2.2.1 Wall ties
The design embedment length of wall ties shall be at least 40 mm.
The overall length of wall ties shall be declared. When sampled in accordance with clause 8 and
measured, the overall length of wall ties shall be within ± 2,5 % of the declared value.
For cavity wall ties, the range of cavity widths over which the declared values of product performance
characteristics are valid shall be declared.
For each end of a wall tie, the design embedment length, or details and instructions for fixing shall be
declared.
NOTE The requirements of this standard may be applied to some component parts of more complex tying
systems (e.g. head restraint slip ties of the types shown in Figure 12).
5.2.2.2 Tension straps
The overall dimensions of each length of a strap together with details of the number, size and location
of fixings as appropriate shall be declared. When sampled in accordance with clause 8 and
measured, dimensions shall be within ± 5 % or 3 mm of the declared values whichever is the lesser.
5.2.2.3 Joist hangers
The design embedment length of joist hangers (joint fixing type) shall be at least 60 mm. The clear
length of the joist flange (all types) shall be at least 75 mm.
The following dimensions shall be declared. When sampled in accordance with clause 8 and
measured these dimensions shall be within ± 5 % or 3 mm of the declared values whichever is the
lesser:
the clear length of the masonry flange;
the clear length of the joist flange;
the perpendicular distance between the bearing surface of the masonry flange and the bearing
surface of the joist flange (joint fixing type only);
the width of the joist for which the hanger is intended.
5.2.2.4 Brackets
The overall perpendicular length, L (see Figure 3), from the fixing surface to the extremity of the
support flange shall be declared. When sampled in accordance with clause 8 and measured, L shall
be within ± 5 % or ± 3 mm of the declared value, whichever is the lesser.
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EN 845-1:2003+A1:2008 (E)
5.2.3 Thickness or diameter
5.2.3.1 Wall ties, tension straps and joist hangers
The minimum thickness of mortar joint for which the component is suitable shall be declared. This
declared thickness shall be not less than the thickness of the joint as used in the tests carried out in
accordance with EN 846.
5.2.3.2 Brackets
The minimum thickness of the material shall be declared. When sampled in accordance with clause 8
and measured, the minimum thickness shall be equal to or greater than the declared value.
The permissible deviations on thickness for coated steel flat materials shall be in accordance with
Tables 1 and 2 of !EN 10143:2006".
5.2.4 Other dimensions
5.2.4.1 General
Any other dimensions, including the number, size and location of fixings, which affect the structural
performance of a product or which co-ordinate with other components shall be declared. When
sampled in accordance with clause 8 and measured, these dimensions shall be within ± 5 % of the
declared values.
5.2.4.2 Movement-tolerant cavity wall ties
For movement-tolerant cavity wall ties the maximum permissible range of movement shall be
declared.
5.2.4.3 Slope-tolerant cavity wall ties
For slope-tolerant ties the maximum and minimum permissible slopes shall be declared.
5.3 Mechanical strength
5.3.1 Wall ties and associated fixings
5.3.1.1 General
Wall ties shall be designated as either symmetrical or asymmetrical and either horizontal, slope-
tolerant or movement-tolerant. The mechanical performance of slope-tolerant and movement-tolerant
ties at all points of their ranges of slope or movement shall be equal to or greater than the declared
values.
NOTE 1 See 3.1.5 for definition of the term ‘declared value’.
Where cavity wall ties are declared to be movement-tolerant and/or slope-tolerant then their
mechanical strength shall be determined for the maximum condition of movement and/or maximum
slope.
NOTE 2 The term ‘load capacity’ relates to test values for individual specimens whereas the terms
‘compressive load capacity’, ‘shear load capacity’ and ‘vertical load capacity’ relate to the mean of the test values
for a sample.
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EN 845-1:2003+A1:2008 (E)
5.3.1.2 Tensile load capacity
The tensile load capacity of the wall ties shall be declared. When sampled in accordance with
clause 8 and tested by the method of EN 846-5 or EN 846-6 as appropriate, the tensile load capacity
shall be equal to or greater than the declared value and additionally no load capacity of a specimen in
tension shall be less than 70 % of the declared value. For asymmetrical ties, where the ends are
tested separately, the tensile load capacity shall be that of the weaker end. Each of the two
supplementary tests over the 15 mm wider cavity shall not give load capacities in tension less than
50 % of the declared value.
5.3.1.3 Compressive load capacity
The compressive load capacity of the wall ties shall be declared. When sampled in accordance with
clause 8 and tested by the method of EN 846-5 or EN 846-6 as appropriate, the compressive load
capacity shall be equal to or greater than the declared value and additionally no load capacity of a
specimen in compression shall be less than 70 % of the declared value. For asymmetrical ties, where
the ends are tested separately, the load capacity of a specimen in compression shall be that of the
weaker end. Each of the two supplementary tests over the 15 mm wider cavity shall not give load
capacities in compression less than 50 % of the declared value.
5.3.1.4 Displacement under load
When measured in accordance with EN 846-5 or EN 846-6 as appropriate, the displacement of any
individual wall tie at one third of the declared value of tensile load capacity or compressive load
capacity shall not exceed 1 mm. In each of the two supplementary tests over a 15 mm wider cavity
the displacement of the wall tie at one sixth of the declared value shall not exceed 1 mm.
5.3.2 Shear ties
5.3.2.1 Shear load capacity
Shear ties shall be designated as either symmetrical or asymmetrical. Shear ties shall comply with the
requirements of 5.3.1 and this sub-clause.
The shear load capacity of the shear ties shall be declared. When sampled in accordance with
clause 8 and tested by the method of EN 846-7, the shear load capacity shall be equal to or greater
than the declared value for eit
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