SIST EN 12811-2:2004

SLOVENSKI STANDARD
SIST EN 12811-2:2004
01-maj-2004
2SUHPD]D]DþDVQHJUDGQMH±GHO,QIRUPDFLMDRPDWHULDOLK
Temporary works equipment - Part 2: Information on materials
Temporäre Konstruktionen für Bauwerke - Teil 2: Informationen zu den Werkstoffen
Équipements temporaires de chantiers - Partie 2: Informations concernant les matériaux
Ta slovenski standard je istoveten z: EN 12811-2:2004
ICS:
91.220 Gradbena oprema Construction equipment
SIST EN 12811-2:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

EUROPEAN STANDARD
EN 12811-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2004
ICS 91.220
English version
Temporary works equipment - Part 2: Information on materials
Equipements temporaires de chantiers - Partie 2: Temporäre Konstruktionen für Bauwerke - Teil 2:
Information concernant les matériaux Informationen zu den Werkstoffen
This European Standard was approved by CEN on 17 December 2003.
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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 12811-2:2004 E
worldwide for CEN national Members.

---------------------- Page: 2 ----------------------

EN 12811-2:2004 (E)
Contents page
1 Scope . 5
2 Normative references . 5
3 General. 6
3.1 Selection of materials. 6
3.2 Characteristic values. 6
3.3 Inspection documents. 6
3.4 Effects of fabrication . 6
4 Steel. 6
4.1 General. 6
4.2 Dimensions, mass and tolerance. 6
4.3 Fracture toughness . 7
4.4 Steel grades in EN 10142 . 7
5 Cast iron. 7
5.1 General. 7
5.2 Prototype testing . 7
5.3 Inspection document. 7
6 Aluminium alloys . 8
6.1 General. 8
6.2 Dimensions, mass and tolerance. 8
6.3 Heat affected zones . 8
6.4 Inspection document. 8
7 Timber and timber based materials . 8
7.1 General. 8
7.2 Solid timber and glued laminated timber . 9
7.2.1 General. 9
7.2.2 Characteristic values. 9
7.2.3 Dimensions, mass and tolerance. 9
7.3 Wood-based materials (plywood, particleboard, fibreboard). 9
7.3.1 General. 9
8 Protection against corrosion and deterioration . 9
8.1 Ferrous metal products. 9
8.2 Aluminium alloys . 10
8.3 Plywood for scaffold decks . 10
9 Welding . 10
Annex A (informative) Information taken from other material and design standards. 11
Bibliography . 17
2

---------------------- Page: 3 ----------------------

EN 12811-2:2004 (E)
Foreword
This document (EN 12811-2:2004) has been prepared by Technical Committee CEN/TC 53 “Temporäre
Baukonstruktionen”, the secretariat of which is held by DIN.
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 August 2004, and conflicting national standards shall be withdrawn at
the latest by August 2004.
This European Standard EN 12811 consists of the following parts under the general title: Temporary works
equipment:
- Part 1: Scaffolds - Performance requirements and general design
- Part 2: Information on materials
- Part 3: Load testing
Annex A is informative.
This document includes a Bibliography.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland
and United Kingdom.
3

---------------------- Page: 4 ----------------------

EN 12811-2:2004 (E)
Introduction
This European Standard represents a supporting standard for product standards produced by CEN/TC 53.
It takes into account the material-related comments on the following drafts obtained in the CEN-enquiry:
prEN 12810-1:1997, Façade scaffolds made of prefabricated components — Part 1: Product specifications.
prEN 12810-2, Façade scaffolds made of prefabricated components - Part 2: Particular methods of structural
design
prEN 12811:1997, Scaffolds — Performance requirements and general design.
prEN 12812:1997, Falsework — Performance requirements and general design.
prEN 12813:1997, Load bearing towers made of prefabricated elements — Methods of particular design and
assessment.
prEN 13331-1:1998, Trench lining systems — Part 1: Product specifications.
prEN 13331-2:1998, Trench lining systems — Part 2: Assessment by calculation or test.
prEN 13377:1998, Prefabricated timber formwork beams — Requirements, classification and assessment.
This standard is limited to the selection of types and grades of material from standards, which are either
international or European standards. However, in the field of temporary works equipment the use of other
materials can be indicated or even imperative.
The use of non standardised (new) materials can give advantage for particular components. But this use
prevents the marking of the product conforming in other respects to the product standard with the number of
the respective product standard.
The components of temporary works equipment are used for many years. There are components in the stores
of the users and on building sites which are made of materials corresponding to former national standards.
This standard does not intend to prevent neither the use of non standardised (new) materials nor the use of
components made of old materials.
It is beyond the scope and the competence of CEN/TC 53 to formulate regulations for non standardized new
materials and for old materials former standardized nationally.
In the absence of a European product directive for temporary works equipment, such regulations and their
mutual acknowledgement are reserved to the single European country.
For closing the gap until a European regulation is available, the following recommendations are given:
1. The single country could add a national foreword to this standard, which regulates the further use of
components, made of old materials for its jurisdiction.
2. The Working Groups of CEN/TC 53 could include a requirement in their product standards that also
products made partially of materials not covered by ISO or EN standards may have the number of the
product standard, if they are marked with an asterisk additionally and if the fact is recorded in the product
manual.
4

---------------------- Page: 5 ----------------------

EN 12811-2:2004 (E)
1 Scope
This European Standard provides guidance on where to find information on materials often used in temporary
works. It draws attention to a number of points that a designer should take into account.
The information given is limited to commonly used steel, aluminium alloys, cast iron, timber and timber based
materials.
Requirements are also given for welding, for limiting corrosion and other deterioration.
It is limited to the selection of types and grades of material from standards, which are either international or
European Standards.
2 Normative references
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 301, Adhesives, phenolic and aminoplastic, for load-bearing timber structures - Classification and
performance requirements.
EN 336, Structural timber — Sizes, permitted deviations.
EN 338, Structural timber — Strength classes.
EN 390, Glued laminated timber — Sizes — Permissible deviations.
EN 729-1, Quality requirements for welding — Fusion welding of metallic materials — Part 1: Guidelines for
selection and use.
EN 1562, Founding — Malleable cast irons.
EN 1563, Founding — Spheroidal graphite cast irons.
EN 10142, Continuously hot-dip zinc coated low carbon steels strip and sheet for cold forming — Technical
delivery conditions.
EN 10204, Metallic products — Types of inspection documents.
ENV 1993-1-1, Eurocode 3: Design of steel structures — Part 1-1: General rules and rules for buildings.
ENV 1993-1-3, Eurocode 3: Design of steel structures — Part 1-3: General rules - Supplementary rules for
cold formed thin gauge members and sheeting.
ENV 1995-1-1, Eurocode 5: Design of timber structures — Part 1-1: General rules and rules for buildings.
ENV 1999-1-1:1998, Eurocode 9: Design of aluminium structures — Part 1-1: General rules - General rules
and rules for buildings.
EN ISO 1461; Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test
methods (ISO 1461:1999).
EN ISO 12944 – Parts 1 to 8, Paints and varnishes — Corrosion protection of steel structures by protective
paint systems.
5

---------------------- Page: 6 ----------------------

EN 12811-2:2004 (E)
3 General
3.1 Selection of materials
Material used shall be sufficiently robust and durable to withstand normal working conditions.
Materials shall be free from any impurities and defects, which may affect their satisfactory use.
Materials shall be selected from European or International Standards.
NOTE Commonly used materials are listed in annex A.
3.2 Characteristic values
The minimum values for yield stress or proof stress and for the tensile strength specified in material standards
shall be used as characteristic values in design calculations.
3.3 Inspection documents
Materials for components, which affect the load bearing behaviour and/or health and safety aspects, shall be
delivered with an inspection document in accordance with EN 10204. The minimum level shall be 2.2.
3.4 Effects of fabrication
Account shall be taken of forming or other fabrication techniques such as welding which can affect the
material properties. For example, for steel the yield stress could be raised and the ductility could be reduced
by these operations.
4 Steel
4.1 General
The commonly used materials are listed in Table A.1 and Table A.2. In addition, requirements are given in
ENV 1993-1-1 and ENV 1993-1-3.
Some material values are given in Table 1.
Table 1 — Material values for steel
Modulus of elasticity, Shear modulus, Coefficient of linear Density
E G thermal expansion a
kg
1
3
m
MPa MPa
K
210000 81000 7850-5
1,2·10
2
1 MPa = 1 N/mm
4.2 Dimen
...