SIST EN 17468-2:2022
(Main)Fibre-cement products - Determination of pull through and shear resistance and bending strength calculations - Part 2: Profiled sheets
Fibre-cement products - Determination of pull through and shear resistance and bending strength calculations - Part 2: Profiled sheets
This document specifies test methods for pull through resistance and shear resistance of fibre-cement profiled sheets for roofing and cladding. The results are only applicable to the fibre cement product and not to the complete fixing assembly.
It applies only to products as delivered.
The field of application for pull through resistance is defined in 7.6.
The field of application for shear resistance is defined in 8.6.
Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und der Biegefestigkeit - Teil 2: Wellplatten
Dieses Dokument legt Verfahren für die Prüfung des Durchzugs- und Querkraftwiderstands von Faserzement-Wellplatten für Dacheindeckung und Wandbekleidung fest. Die Ergebnisse sind nur auf das Faserzement¬produkt anwendbar, nicht auf die gesamte Befestigungsbaugruppe.
Es gilt nur für Produkte im Auslieferungszustand.
Der Anwendungsbereich für den Durchzugswiderstand ist in 7.6 festgelegt.
Der Anwendungsbereich für den Querkraftwiderstand ist in 8.6 festgelegt.
Produits en fibres-ciment - Détermination des calculs de résistance au déboutonnage, au cisaillement et à la flexion - Partie 2 : Plaques profilées
Le présent document spécifie des méthodes d'essai de la résistance au déboutonnage et de la résistance au cisaillement des plaques profilées en fibres-ciment pour toiture et bardage. Les résultats ne sont applicables qu'au produit en fibres-ciment, et non à l'assemblage de fixation complet.
Le présent document ne s'applique qu'aux produits dans l'état où ils sont livrés.
Le domaine d'application de la résistance au déboutonnage est défini au 7.6.
Le domaine d'application de la résistance au cisaillement est défini au 8.6.
Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter izračun upogibne trdnosti - 2. del: Valovite strešne plošče
Ta dokument določa preskusne metode za vlečno odpornost in strižno trdnost vlaknatocementnih valovitih strešnih plošč, ki se uporabljajo za prekrivanje streh in oblaganje sten. Rezultati se uporabljajo le za vlaknatocementni proizvod in ne za celoten pritrditveni sklop.
Dokument se uporablja le za proizvode, kot so dobavljeni.
Področje uporabe za vlečno odpornost je opredeljeno v točki 7.6.
Področje uporabe za strižno trdnost je opredeljeno v točki 8.6.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 17468-2:2022
01-maj-2022
Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter
izračun upogibne trdnosti - 2. del: Valovite strešne plošče
Fibre-cement products - Determination of pull through and shear resistance and bending
strength calculations - Part 2: Profiled sheets
Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und
der Biegefestigkeit - Teil 2: Wellplatten
Produits en fibres-ciment - Détermination des calculs de résistance au déboutonnage, au
cisaillement et à la flexion - Partie 2 : Plaques profilées
Ta slovenski standard je istoveten z: EN 17468-2:2022
ICS:
91.060.20 Strehe Roofs
91.100.40 Cementni izdelki, ojačani z Products in fibre-reinforced
vlakni cement
SIST EN 17468-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 17468-2:2022
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SIST EN 17468-2:2022
EN 17468-2
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 91.100.40
English Version
Fibre-cement products - Determination of pull through
and shear resistance and bending strength calculations -
Part 2: Profiled sheets
Produits en fibres-ciment - Détermination des calculs Faserzementprodukte - Bestimmung des Durchzugs-
de résistance au déboutonnage, au cisaillement et à la und Querkraftwiderstandes und der Biegefestigkeit -
flexion - Partie 2 : Plaques profilées Teil 2: Wellplatten
This European Standard was approved by CEN on 10 January 2022.
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-CENELEC 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-CENELEC 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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17468-2:2022 E
worldwide for CEN national Members.
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SIST EN 17468-2:2022
EN 17468:2022 (E)
Contents Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Symbols and abbreviations . 7
5 Product requirements . 9
5.1 Composition . 9
5.2 Appearance and finish . 9
6 Sampling procedure . 9
6.1 Sampling method . 9
6.2 Type testing . 9
6.3 Preparation of test specimens . 9
6.3.1 Preparation of the test specimens for the pull through test . 9
6.3.2 Preparation of test specimens for the shear resistance test . 10
7 Test method for the determination of pull through resistance of fibre-cement profiled
sheets . 10
7.1 Principle . 10
7.2 Test equipment . 10
7.2.1 Tensile testing machine . 10
7.3 Fasteners . 13
7.4 Test procedure . 13
7.5 Expression of results and test report . 14
7.5.1 Pull through resistance . 14
7.5.2 Test report . 15
7.6 Field of application . 15
8 Test method for the determination of shear resistance of fibre-cement profiled sheets
. 16
8.1 Principle . 16
8.2 Test equipment . 16
8.2.1 Testing of shear resistance . 16
8.2.2 Shear resistance parallel to the corrugations . 16
8.2.3 Shear resistance perpendicular to the corrugations . 17
8.3 Fasteners . 18
8.4 Test procedure . 18
8.5 Expression of results and test report . 19
8.5.1 Shear resistance . 19
8.5.2 Test report . 20
8.6 Field of application . 20
9 Mechanical characteristics . 20
9.1 Bending strength . 20
9.1.1 General. 20
9.1.2 Characteristic bending strength . 21
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EN 17468-2:2022 (E)
9.1.3 Bending modulus of elasticity . 22
9.1.4 Longitudinal direction . 23
9.1.5 Transverse direction . 24
9.1.6 Design bending strength . 24
9.2 Pull through resistance / shear resistance . 25
9.2.1 Characteristic pull through resistance / shear resistance . 25
9.2.2 Design pull through resistance / shear resistance . 25
Bibliography . 26
3
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SIST EN 17468-2:2022
EN 17468-2:2022 (E)
European foreword
This document (EN 17468-2:2022) has been prepared by Technical Committee CEN/TC 128 “Roof
covering products for discontinuous laying and products for wall cladding”, the secretariat of which is
held by NBN.
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 September 2022, and conflicting national standards shall
be withdrawn at the latest by September 2022.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document is part 2 of the EN 17468 series and deals with profiled sheets, whereas part 1 deals with
flat sheets.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United
Kingdom.
4
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SIST EN 17468-2:2022
EN 17468-2:2022 (E)
Introduction
Different fibre-cement profiled sheets on the market are assessed for pull through resistance.
Fibre-cement profiled sheets have been evaluated for pull through and shear resistance by a number of
test methods designed to simulate conditions of use.
The results from the different existing methods are not directly comparable.
This document establishes an agreed method for evaluation of the pull through resistance of fibre-cement
profiled sheet products, based on the experiences obtained over the last number of years in different
countries. The document is partly based on the French national standard NF P30-311.
This is a testing standard with no classifications, but this test procedure may be used by national
regulators to set classifications for roof and wall assemblies.
The performance of an assembly constructed with these products depends not only on the properties of
product as required by this document, but also on the design, construction and performance of an
assembly to be assessed by appropriate methods such as calculations or testing.
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EN 17468-2:2022 (E)
1 Scope
This document specifies test methods for pull through (tension/compression testing for fasteners
through the sheets) and shear resistance of fibre-cement profiled sheets according to EN 494. The results
are only applicable to the fibre-cement product and not to the complete fixing assembly.
It applies only to products as delivered.
The field of application for pull through resistance is defined in 7.6.
The field of application for shear resistance is defined in 8.6.
NOTE For design purposes of fibre-cement profiled sheets in the final application, the failure modes pull-out
and breaking of the fixings or substructure are not in the scope of this standard. They might become decisive and
need to be tested or calculated according to the relevant design standards for fixings (e.g. Eurocode 3 for steel,
Eurocode 5 for wood and Eurocode 9 for aluminium substructures) and compared with the results for pull-through
and shear resistance.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 494:2012+A1:2015, Fibre-cement profiled sheets and fittings - Product specification and test methods
EN 1990, Eurocode - Basis of structural design
EN ISO 7500-1, Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1:
Tension/compression testing machines - Calibration and verification of the force-measuring system (ISO
7500-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1
profiled sheet
as defined in EN 494
3.2
type test
test carried out to demonstrate conformity with the requirements of this document or for approval of a
new product and/or when a fundamental change is made in formulation and/or method of manufacture
the effects of which cannot be predicted on the basis of previous experience
Note 1 to entry: The test is performed on the delivered product, but is not required for each batch.
3.3
as delivered
same condition as the fibre-cement producer intends to supply the product after completing all aspects
of the process including maturing and, when appropriate, painting
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EN 17468-2:2022 (E)
3.4
span
distance between the parallel support axes
3.5
lap
overlap
amount one sheet overlaps another at either the end (end lap) or the side (side lap)
4 Symbols and abbreviations
For the purpose of this document, the following symbols and abbreviations apply.
a it can be the deformation or the pitch of the corrugation as defined in EN 494
b dimension of the specimen as defined in EN 494
e thickness of a sheet, in millimetres
e average thickness of sheets, in millimetres
m
e nominal thickness of the sheet according to EN 494, in millimetres
nom
E bending modulus of elasticity
m
F load
F pull through load at failure
ax
F average pull through load at failure
ax,m
F load at the intersection of the test diagram and the 10 % reduced linear regression of the
el
E modulus
F load of test i at intersection of the test diagram and the 10 % reduced linear regression of
el,i
the E modulus (see Figure 6)
F breaking load of test i
max,i
F shear load at failure
v
F characteristic shear load at failure
v,k
F maximum shear load perpendicular to the corrugation
v⊥
F maximum shear load parallel to the corrugation
v∥
F the average failure load for pull through/shear resistance
m
F average shear load at failure
vm
M bending moment at rupture as defined in EN 494 for test i with respect to the chosen test
i,test
conditioning “test”, e.g. when the conditioning is “wet”, it reads: M
i,wet
h dimension from the extreme top of the corrugation to the neutral axis
t
h dimension from the extreme bottom of the corrugation to the neutral axis
b
k statistical factor derived from EN 1990
I second moment of area, also known as area moment of inertia, of fibre-cement profiled
nom
sheets (nominal thickness)
l clear span between the supports in the breaking load test or span between the centre of
s
the supports in the bending moment test as defined in EN 494; in millimetres
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EN 17468-2:2022 (E)
l the minimum edge distance longitudinal to the direction of the corrugation
min,long
l the minimum edge distance perpendicular to the direction of the corrugation
min,perp
f bending strength at rupture
f bending strength in the longitudinal direction, from breaking load testing
BL
f bending strength in the transverse direction, from bending moment testing
BM
f characteristic bending strength in the longitudinal direction, from breaking load testing
BL,k
f 5 % quantile of the bending strength in the longitudinal direction
BL,0.5
f bending strength by the load F at the intersection of the test diagram and the 10 %
el el,i
reduced linear regression of the E modulus (see Figure 6)
f mean value of the yield strength
el,mean
f mean value of the yield strength in the longitudinal direction
BL,el,mean
f characteristic bending strength in the transverse direction, from bending moment testing
BM,k
f 5 % quantile of the bending strength in the transverse direction
BM,0.5
f mean value of the yield strength in the transverse direction
BM,el,mean
f characteristic bending strength
k
f design bending strength
d
design bending strength in the longitudinal direction, from breaking load testing
fBL,d
f design bending strength in the transverse direction, from bending moment testing
BM,d
f 5 % quantile of the maximum bending strength
0.5
2
R in statistics, the coefficient of determination “R squared”, is the proportion of the variance
in the dependent variable that is predictable from the independent variable(s)
R mean quotient of the modulus of rupture of exposed and unexposed specimen, where “i”
i
shall stand for either of the following testing options: 1) testing freeze-thaw, 2) soak-dry
and 3) warm-water according to EN 494
R mean quotient of the modulus of rupture of exposed and unexposed specimen at 95 %
L,i
confidence level as defined in EN 494, where “i” shall stand for either of the following
testing options: 1) freeze-thaw, 2) soak-dry and 3) warm-water according to EN 494
R characteristic resistance
k
R characteristic pull through resistance
ax,k
R average pull through resistance
ax,m
R characteristic shear resistance
v,k
R average shear resistance
v,m
R characteristic shear resistance perpendicular to the corrugation
v,k⊥
R average shear resistance perpendicular to the corrugation
v,m⊥
R characteristic shear resistance parallel to the corrugation
v,k∥
Rv,m∥ average shear resistance parallel to the corrugation
R design value pull through/shear resistance
d
s estimate of the standard deviation
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EN 17468-2:2022 (E)
W section modulus corresponding to the breaking load
nom,BL
W section modulus corresponding to the bending moment
nom,BM
α ageing factor gained by multiplication of the three mean quotients of the modulus of
rupture R from the warm water, soak dry and freeze thaw type tests in EN 494
i
γ partial safety factor for a component property under consideration of model uncertainties
M
and size deviations
γ confidence level (%)
γ partial factor for the dead load (γ = 1,35)
F F
κwet correction factor “kappa wet” to take into consideration different test conditions
5 Product requirements
5.1 Composition
The test method is applicable to fibre-cement profiled sheets manufactured in accordance with EN 494.
5.2 Appearance and finish
The appearance and finish shall be evaluated as defined in EN 494.
6 Sampling procedure
6.1 Sampling method
Take an adequate number of full size sheets drawn at random from a consignment of sheets or, in the
case of continuous production, from a production batch. All test specimens used on the test assembly
shall be from the same consignment or production batch. The size of the batch is chosen by the
manufacturer up to a maximum of one week’s production.
6.2 Type testing
The pull through resistance and shear resistance tests, for fibre-cement profiled sheets, are type tests.
For continuous production the type test shall be repeated at least once every year.
6.3 Preparation of test specimens
6.3.1 Preparation of the test specimens for the pull through test
Cut 2 samples from a minimum of 10 profiled sheets to a length of (625 ± 5) mm and a width of
2 corrugations ± 5 mm. For each test, the 2 samples should be taken from the same sheet. For crown
fixings, the test specimens shall comprise one crown and two valleys, with the crown central in the width
of the test specimen. For valley fixings, the test specimen should comprise one valley and two crowns,
with the valley central in the width of the test specimen.
The specimens should be stored for 7 days ± 1 day in ambient laboratory conditions followed by 24 h
immersion in water.
The normal conditioning is 7 days at 23 °C / 50 % RH followed by 24 h under water, the same as the
conditioning for type testing breaking load and bending moment in accordance with EN 494. Other
conditions may be used provided that for design appropriate correction factors are introduced to
(Kappa wet) is used for calculation
recalculate the measured values to the wet conditioning. A factor κwet
of the design values (see 9.2.2 Formula (21)) in wet condition.
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The sheets shall be pre-drilled allowing a clearance hole around the fastener as recommended by the
sheeting manufacturer (minimum 1 mm clearance) or, for tests on winged fasteners, directly using the
self-drilling fasteners. The sheets can be pre-drilled before or after conditioning.
6.3.2 Preparation of test specimens for the shear resistance test
Cut a minimum of 20 profiled sheets (10 for both directions) to a length of (300 ± 5) mm and a width of
3 corrugations with the cuts at the crown corrugations.
The specimens should be stored for 7 days ± 1 day in ambient laboratory conditions followed by 24 h
immersion in water.
The normal conditioning is 7 days at 23 °C / 50 % RH followed by 24 h under water, the same as the
conditioning for type testing breaking load and bending moment in accordance with EN 494. Other
conditions may be used provided that for design appropriate correction factors are introduced to
recalculate the measured values to the wet conditioning.
The sheets shall be pre-drilled allowing a clearance hole around the fastener as recommended by the
sheeting manufacturer or use self-drilling fasteners. The sheets can be pre-drilled before or after
conditioning.
The minimum edge distances (longitudinal and perpendicular) l and should be specified by
min,long lmin,perp
the manufacturer.
7 Test method for the determination of pull through resistance of fibre-cement
profiled sheets
7.1 Principle
The pull through resistance is determined by the maximum load F (in N) required to pull the fastener
ax
through the test sheet.
7.2 Test equipment
7.2.1 Tensile testing machine
The test rig shall be essentially composed of a vertical-uniaxial class-1 tensile testing machine as per
EN ISO 7500-1 with force capacity appropriate to delivering the loading required, featuring the following
main components:
— an upper test-frame part fitted with a specimen-holding device;
— a lower test-frame part fitted with a second specimen-holding device.
Either or both parts shall, by virtue of design, enable alignment of the fixtures and the vector of loading.
NOTE The test device simulates a fibre-cement profiled sheeting-to-purlin roofing fixture, as illustrated in
Figure 1, or by changing the configuration can also be used to simulate sheets fixed through the valley corrugations
for use as wall cladding.
The fastener shall be held in the upper-frame grip as illustrated in the schematic diagrams given in
Figures 2 and 3.
If the length or geometry of the fastener means it cannot be held directly in the upper-frame grip, then a
mechanical system that fixes into the upper-frame grip should be used (see Figures 2 and 3).
The clamping plates (Figure 3, position 4) are made of timber cut to fit the shape of the corrugation and
their surface in contact with the test sample is covered over the full width with 6 mm to 10 mm thick
memory foam or rubber strips (shore A hardness 35 to 40). The clamping plates are made in a way to
10
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EN 17468-2:2022 (E)
provide sufficient stiffness towards the reaction forces. In principle a width of the clamping plates of
60 mm and a height (position 4 and 5) of at least 50 mm above the surface of the samples is considered
appropriate. In testing with or without overlap the heights shall be adjusted to ensure horizontal
clamping in a plane perpendicular to the axis of pull through loading.
The upper and lower frame (Figure 2 and 3, position 7) are connected at four corners with M10 wired
steel rods. Clamping of the test samples between the clamping plates is done by adjusting and tightening
the nuts on the steel rods. A tightening (torque) moment of (2 to 3) Nm shall be applied to prevent
rotation of test samples at their clamping position during pull through testing.
Pull through shall be tested following the configuration as in Figures 2 and 3 simulating fixing of sheets
in the overlap. For longer sheets, fixing outside the overlap into intermediate supports is used in practice.
If needed, pull through resistance of intermediate fixings shall be tested using the same principle but
without overlap, using only a single sheet.
Key
1 overlapping sheet
2 underlapping sheet
A overlap or sheet end lap
B lmin,long
Figure 1 — Example of fixture on a roof
11
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SIST EN 17468-2:2022
EN 17468-2:2022 (E)
Dimensions in mm
Key
1 underlapping test sheet (dimensions 625 mm ± 5 mm x 2 corrugations ± 5 mm)
2 overlapping test sheet (dimensions 625 mm ± 5 mm x 2 corrugations ± 5 mm)
3 fastener assembly including its sealing assembly
4 clamping plate to stabilize the assembly prior to tensile loading – width 60 mm ± 10 mm
5 sheet support, which reacts in a way that simulates downward pressure – width 60 mm ± 10 mm
6 memory foam, 10 mm-thick, allowing sheet deformation
7 metal frame for fixing the system to the tensile testing machine
Figure 2 — Schematic diagram of a test device — Right side view (diagram indicates a test for
sheets fixed through the crown corrugations)
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SIST EN 17468-2:2022
EN 17468-2:2022 (E)
Dimensions in mm
Key
1 underlapping test sheet (dimensions 625 mm ± 5 mm x 2 corrugations ± 5 mm)
2 overlapping test sheet (dimensions 625 mm ± 5 mm x 2 corrugations ± 5 mm)
3 fastener assembly including its sealing assembly
4 clamping plate to stabilize the assembly prior to tensile loading - width 60 mm ± 10 mm
5 sheet support, which reacts in a way that simulates downward pressure - width 60 mm ± 10 mm
6 memory foam, 10 mm-thick, allowing sheet deformation
7 metal frame for fixing the system to the tensile testing machine
a wave length, pitch
Figure 3 — Schematic diagram of a test device — Front view (diagram indicates a test for sheets
fixed through the crown corrugations)
7.3 Fasteners
The fastener shall incorporate all sealing and fastening elements that form part of the fastening assembly.
The fastener supplier should provide the make, type,
...
SLOVENSKI STANDARD
oSIST prEN 17468-2:2020
01-oktober-2020
Vlaknatocementni proizvodi - Ugotavljanje vlečne odpornosti in strižne trdnosti ter
izračun upogibne trdnosti - 2. del: Valovite strešne plošče
Fibre cement products - Determination of pull through and shear resistance and bending
strength calculations - Part 2: Profiled sheets
Faserzementprodukte - Bestimmung des Durchzugs- und Querkraftwiderstandes und
der Biegefestigkeit - Teil 2: Wellplatten
Produits en fibres-ciment - Détermination des calculs de résistance à la traversée de la
tête, au cisaillement et à la flexion - Partie 2 : Plaques profilées
Ta slovenski standard je istoveten z: prEN 17468-2
ICS:
91.060.20 Strehe Roofs
91.100.40 Cementni izdelki, ojačani z Products in fibre-reinforced
vlakni cement
oSIST prEN 17468-2:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 17468-2:2020
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oSIST prEN 17468-2:2020
DRAFT
EUROPEAN STANDARD
prEN 17468-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2020
ICS 91.100.40
English Version
Fibre cement products - Determination of pull through and
shear resistance and bending strength calculations - Part
2: Profiled sheets
Produits en fibres-ciment - Détermination des calculs Faserzementprodukte - Bestimmung des Durchzugs-
de résistance à la traversée de la tête, au cisaillement et und Querkraftwiderstandes und der Biegefestigkeit -
à la flexion - Partie 2 : Plaques profilées Teil 2: Wellplatten
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 128.
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-CENELEC
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17468-2:2020 E
worldwide for CEN national Members.
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Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviations . 6
5 Product requirements . 7
6 Sampling procedure . 7
7 Test method for the determination of pull through resistance of fibre cement
profiled sheets . 8
8 Test method for the determination of shear resistance of fibre-cement profiled
sheets . 13
9 Mechanical characteristics . 17
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European foreword
This document (prEN 17468-2:2020) has been prepared by Technical Committee CEN/TC 128 “Roof
covering products for discontinuous laying and products for wall cladding", the secretariat of which is
held by NBN.
This document is currently submitted to the CEN Enquiry.
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Introduction
Different fibre-cement profiled sheets on the market are assessed for pull through resistance.
Fibre-cement profiled sheets have been evaluated for pull through and shear resistance by a number of
test methods designed to simulate conditions of use.
The results from the different existing methods are not directly comparable.
This document establishes an agreed method for evaluation of the pull through resistance of fibre-cement
profiled sheet products, based on the experiences obtained over the last number of years in different
countries.
This is a product standard with no classifications, but this test procedure may be used by national
regulators to set classifications for roof and wall assemblies.
The performance of an assembly constructed with these products depends not only on the properties of
product as required by this document, but also on the design, construction and performance of the
assembly as a whole in relation to the environment and conditions of use.
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1 Scope
This document specifies test methods for pull through resistance and shear resistance of fibre-cement
profiled sheets for roofing and cladding. The results are only applicable to the fibre cement product and
not to the complete fixing assembly.
It applies only to products as delivered.
The field of application for pull through resistance is defined in 7.6.
The field of application for shear resistance is defined in 8.6.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 494:2012+A1:2015, Fibre-cement profiled sheets and fittings - Product specification and test methods
EN 755-2, Aluminium and aluminium alloys - Extruded rod/bar, tube and profiles - Part 2: Mechanical
properties
EN 1990, Eurocode - Basis of structural design
EN 10025 (all parts), Hot rolled products of structural steels
EN 10346, Continuously hot-dip coated steel flat products for cold forming - Technical delivery conditions
EN 14081-1, Timber structures - Strength graded structural timber with rectangular cross section - Part 1:
General requirements
EN ISO 7500-1, Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1:
Tension/compression testing machines - Calibration and verification of the force-measuring system (ISO
7500-1)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
type test
test carried out to demonstrate conformity with the requirements of this document or for approval of a
new product and/or when a fundamental change is made in formulation and/or method of manufacture
the effects of which cannot be predicted on the basis of previous experience
Note 1 to entry: The test is performed on the delivered product, but is not required for each batch.
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3.2
as delivered
same condition as the producer intends to supply the product after completing all aspects of the process
including maturing and, when appropriate, painting
3.3
span
distance between the parallel support axes
3.4
lap (overlap)
amount one sheet overlaps another at either the end (end lap) or the side (side lap)
4 Symbols and abbreviations
For the purpose of this document, the following symbols and abbreviations apply.
a the deformation
e thickness of a sheet
e average thickness of sheets
m
e nominal thickness of the sheet according to EN 494
nom
E bending modulus of elasticity
m
F load
F pull through load at failure
ax
F load at the intersection of the test diagram and the 10% reduced linear regression of the E
el
modulus
F load F at intersection of the test diagram and the 10 % reduced linear regression of the
el,i el,i
E modulus (see Figure 6)
F breaking load
max,i
Fs breaking load per m width
F shear load at failure
v
F characteristic shear load at failure
vk
F average shear load at failure
vm
h dimension from the extreme top of the corrugation to the neutral axis
t
h dimension from the extreme bottom of the corrugation to the neutral axis
b
k statistical factor derived from EN 1990
I second moment of area
I area moment of inertia of fibre-cement profiled sheets
i
l span between the bearingLs Clear span between supports
A
MOR bending moment at rupture
MOR bending strength in the longitudinal direction
BL
MOR bending strength in the transverse direction
BM
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MOR bending strength by the load F at the intersection of the test diagram and the 10%
el el,i
reduced linear regression of the E modulus (see Figure 6)
MOR mean value of the yield strength
el,mean
MOR characteristic bending strength
k
MOR design bending strength
d
MOR 5% quantile of the maximum bending strength
0.5
R mean quotient of the modulus of rupture of exposed and unexposed specimen, where “ ”
i i
shall stand for 1 testing freeze-thaw, 2 soak-dry and 3 warm-water according to EN 494
R mean quotient of the modulus of rupture of exposed and unexposed specimen at 95%
L,i
confidence level as defined in EN 494, where “ ” shall stand for testing: 1 freeze-thaw, 2
i
soak-dry and 3 warm-water according to EN 494
R characteristic shear resistance
vk
R average shear resistance
vm
s standard deviation
W elastic section modulus corresponding to the breaking load
eIBL
W section modulus corresponding to the breaking load
nomBL
W section modulus corresponding to the bending moment
nomBM
α multiplication of the average ageing factors R from the warm water, soak dry and freeze
thaw type tests in EN 494
γ material safety factor
m
γ confidence level (%)
γ
F
partial factor for the dead load (γ =1,35 )
F
5 Product requirements
5.1 Composition
Fibre cement profiled sheets shall be manufactured to meet the requirements of EN 494.
5.2 Appearance and finish
The appearance and finish shall be evaluated as defined in EN 494.
6 Sampling procedure
6.1 Sampling method
Take an adequate number of full size sheets from a production batch. The size of the batch is chosen by
the manufacturer up to a maximum of one week’s production.
6.2 Type testing
The pull through resistance and shear resistance tests are type tests.
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6.3 Preparation of test specimens
6.3.1 Preparation of the test specimens for the pull through test
Cut 2 samples from a minimum of 10 profiled sheets to a length of (625 ± 5) mm and a width of
2 corrugations ± 5 mm. For each test, the 2 samples should be taken from the same sheet. For crown
fixings, the test specimens shall comprise one crown and two valleys, with the crown central in the width
of the test specimen. For valley fixings, the test specimen should comprise one valley and two crowns,
with the valley central in the width of the test specimen.
The specimens should be stored for 7 days ± 1 day in ambient laboratory conditions followed by 24 h
immersion in water.
The sheets shall be pre-drilled allowing a clearance hole around the fastener as recommended by the
sheeting manufacturer (minimum 1mm clearance) or, for tests on winged fasteners, directly using the
self-drilling fasteners. The sheets can be pre-drilled before or after conditioning.
6.3.2 Preparation of test specimens for the shear resistance test
Cut a minimum of 20 profiled sheets to a length of (300 ± 5) mm and a width of 3 corrugations with the
cuts at the crown corrugations.
The specimens should be stored for 7 days ± 1 day in ambient laboratory conditions followed by 24 h
immersion in water.
The sheets shall be pre-drilled allowing a clearance hole around the fastener as recommended by the
sheeting manufacturer (minimum 1 mm clearance). The sheets can be pre-drilled before or after
conditioning.
The minimum edge distances lmin,long and lmin,perp should be specified by the manufacturer.
7 Test method for the determination of pull through resistance of fibre cement
profiled sheets
7.1 Principle
The pull through resistance is determined by the maximum load Fax (in N) required to pull the fastener
through the test sheet.
7.2 Test equipment
7.2.1 Tensile testing machine
The test rig shall be essentially composed of a vertical-uniaxial class-1 tensile testing machine as per
EN ISO 7500-1 with force capacity appropriate to delivering the loading required (for example: 10 kN),
featuring the following main components:
— an upper test-frame part fitted with a specimen-holding device;
— a lower test-frame part fitted with a second specimen-holding device.
Either or both parts shall, by virtue of design, enable alignment of the fixtures and the vector of loading.
NOTE The test device simulates a fibre-cement profiled sheeting-to-purlin roofing fixture, as illustrated in Figure 1,
or by changing the configuration can also be used to simulate sheets fixed through the valley corrugations for use
as wall cladding.
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The fastener shall be held in the upper-frame grip as illustrated in the schematic diagrams given in
Figures 2 and 3.
If the length or geometry of the fastener means it cannot be held directly in the upper-frame grip, then a
mechanical system that fixes into the upper-frame grip should be used (see Figures 2 and 3).
Dimensions in mm
Key
1 overlap sheet
2 underlap sheet
R sheet end lap
Figure 1 — example of fixture on a roof
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