ENV 13381-7:2002
(Main)Test methods for determining the contribution to the fire resistance of structural members - Part 7: Applied protection to timber members
Test methods for determining the contribution to the fire resistance of structural members - Part 7: Applied protection to timber members
This Part of this European Prestandard specifies a test method to be followed for determining the contribution of fire protection systems to the fire resistance of structural timber members.
Such fire protection systems include claddings, sprayed fire protection and coatings.
The method is applicable to all fire protection systems used for the protection of timber members. These can be fixed directly, totally or in part, to the timber member and can include an air gap between the fire protection system and the timber member, as an integral part of its design.
Evaluation of timber constructions protected by horizontal or vertical protective membranes are the subject of prENV 13381-1 or prENV 13381-2 respectively.
The test method is applicable to the determination of the contribution of fire protection systems to the fire resistance of loadbearing timber structural members and non-loadbearing parts of the works, including floors, roofs, walls, beams and columns. It is also applicable to timber structural members incorporating insulating materials between the timber members, e.g. between timber joists in floor constructions.
The test method and its assessment procedure is designed to permit direct application of the results to cover a range of thicknesses of the applied fire protection material.
This European Prestandard contains the fire test which specifies the test to be carried out to determine the ability of the fire protection system to delay the temperature rise throughout the timber member, to determine the ability of the fire protection system to remain coherent and fixed to the timber member and to provide data of the temperature profile throughout the timber test member, when exposed to the standard temperature/time curve according to the procedures defined herein.
In special circumstances, where specified in national building regulations, there can be a need to subject reactive protection material to a smouldering curve. The test
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 7: Brandschutzmaßnahmen für Holzbauteile
Dieser Teil dieser Europäischen Vornorm legt ein Prüfverfahren zur Bestimmung des Beitrages von Brandschutzsystemen zum Feuerwiderstand von tragenden Holzbauteilen fest.
Diese Brandschutzsysteme schließen Beplankungen, aufgesprühte Brandschutzmaterialien und Beschichtungen mit ein.
Das Verfahren ist auf alle Brandschutzsysteme zum Schutz von Holzbauteilen anwendbar. Diese können direkt, sowohl vollständig als auch teilweise, an dem Holzbauteil befestigt sein oder sie können einen Spalt zwischen dem Brandschutzsystem und dem Holzbauteil als festen Bestandteil der konstruktiven Gestaltung beinhalten.
Die Bewertung von Holzkonstruktionen, die durch horizontale oder vertikale Brandschutzmaßnahmen geschützt sind, werden in ENV 13381-1 bzw. ENV 13381-2 behandelt.
Dieses Prüfverfahren ist zur Bestimmung des Beitrages von Brandschutzsystemen zum Feuerwiderstand von tragenden Holzbauteilen und nichttragenden Teilen des Bauwerks einschließlich Decken, Dächer, Wände, Balken und Stützen geeignet. Es ist ebenso anwendbar auf tragende Holzbauteile, die Wärmedämmmaterial zwischen den Holzbauteilen mit einschließen, z. B. zwischen den Holzbalken in Deckenaufbauten.
Das Prüfverfahren und ihr Verfahren zur Beurteilung ist dafür ausgelegt, das direkte Anwenden der Ergebnisse auf einen Bereich von Dicken der benutzten Brandschutzmaßnahme zu gestatten.
Diese Europäische Vornorm beinhaltet das Brandprüfverfahren, das die auszuführende Prüfung festlegt, um die Leistungsfähigkeit des Brandschutzsystems festzustellen, den Temperaturanstieg über das Holzbauteil hinweg zu verzögern und dabei formstabil zu verbleiben und die Verbindung mit dem Holzbauteil aufrechtzuerhalten. Außerdem ergibt die Prüfung Messwerte zum Temperaturprofil über das Holzbauteil hinweg, wenn dieses der Einheits-Temperaturzeitkurve entsprechend dem hier festgelegten Verfahren ausgesetzt ist.
Méthodes d'essai pour déterminer le contribution à la résistance au feu des éléments de construction - Partie 7: Protection appliquée aux éléments en bois
Cette partie de l'ENV 13381 spécifie une méthode d'essai permettant de déterminer la contribution apportée par les systèmes de protection contre le feu à la résistance au feu des éléments de construction en bois.
Ces systèmes de protection contre le feu englobent les habillages, les matériaux de protection appliqués par projection et les revêtements de protection contre le feu.
La méthode d'essai est applicable à tous les systèmes de protection contre le feu utilisés pour protéger les éléments en bois. Ils peuvent être fixés directement, totalement ou en partie, sur l'élément en bois et ils peuvent inclure un espace ou couche d'air entre le système de protection contre le feu et l'élément en bois, en tant que partie intégrante de la conception.
L'évaluation des constructions en bois protégées par des membranes horizontales ou verticales de protection contre le feu est traitée dans l'ENV 13381-1 et le EN 13381-2, respectivement.
La méthode d'essai est applicable pour déterminer la contribution apportée par les systèmes de protection contre le feu à la résistance au feu des éléments porteurs de la structure en bois et des parties non porteuses de l'ouvrage, comprenant planchers, toits, murs, poutres et poteaux en bois. Elle est également applicable aux éléments de construction en bois comportant des matériaux d'isolation entre les élément en bois, par exemple entre les solives en bois dans les planchers.
La méthode d'essai et sa procédure d'évaluation sont conçues pour permettre l'application directe des résultats à une gamme d'épaisseurs du matériau de protection contre le feu.
La présente prénorme européenne contient :
L'essai au feu, qui spécifie les essais qui doivent être effectués pour déterminer l'aptitude du système de protection contre le feu à retarder l'élévation de la température dans l'élément en bois, pour déterminer l'aptitude du système de protection contre le feu à rester cohérent et fixé sur l'élément en bois, et pour obtenir des données conc
Preskusne metode za ugotavljanje prispevka k požarni odpornosti konstrukcijskih elementov - 7. del: Zaščita lesenih elementov
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2003
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Test methods for determining the contribution to the fire resistance of structural members
- Part 7: Applied protection to timber members
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden
Bauteilen - Teil 7: Brandschutzmaßnahmen für Holzbauteile
Méthodes d'essai pour déterminer le contribution a la résistance au feu des éléments de
construction - Partie 7: Protection appliquée aux éléments en bois
Ta slovenski standard je istoveten z: ENV 13381-7:2002
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.080.20 Lesene konstrukcije Timber structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN PRESTANDARD
ENV 13381-7
PRÉNORME EUROPÉENNE
EUROPÄISCHE VORNORM
July 2002
ICS 13.220.50
English version
Test methods for determining the contribution to the fire
resistance of structural members - Part 7: Applied protection to
timber members
This European Prestandard (ENV) was approved by CEN on 1 March 2002 as a prospective standard for provisional application.
The period of validity of this ENV is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the ENV can be converted into a European Standard.
CEN members are required to announce the existence of this ENV in the same way as for an EN and to make the ENV available promptly
at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the ENV) until the final
decision about the possible conversion of the ENV into an EN is reached.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, 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
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. ENV 13381-7:2002 E
worldwide for CEN national Members.
Contents
page
Foreword. 3
1 Scope . 4
2 Normative references. 5
3 Terms and definitions, symbols and units . 5
4 Test equipment . 7
5 Test conditions. 7
6 Test specimens. 8
7 Installation of the test construction. 12
8 Conditioning of the test construction. 12
9 Application of instrumentation. 13
10 Test procedure . 14
11 Test results. 15
12 Test report. 16
13 Assessment . 16
14 Report of the assessment . 18
15 Limits of applicability of the results of the assessment. 18
Annex A (normative) Test method to the smouldering fire or slow heating curve. 23
Annex B (informative) Guidelines for fire protection of timber structures according to
ENV 1995-1-2 - Loadbearing function. 26
Annex C (normative) Measurement of properties of fire protection materials . 29
Annex D (informative) Alternative construction for loaded beam test specimen . 32
Bibliography . 34
Foreword
This document ENV 13381-7:2002 has been prepared by Technical Committee CEN/TC127 "Fire safety in buildings", the
secretariat of which is held by BSI.
This document has been prepared under the mandate given to CEN/TC127 by the Commission and the European Free Trade
Association.
As there was little experience in carrying out these tests in Europe CEN/TC127 agreed that more experience should be built
up during a prestandardization period before agreeing text as European Standards. Consequently all parts are being prepared
as European Prestandards.
This European Prestandard is one of a series of standards for evaluating the contribution to the fire resistance of structural
members by applied fire protection materials. Other parts of this ENV are:
Part 1: Horizontal protective membranes.
Part 2: Vertical protective membranes.
Part 3: Applied protection to concrete members.
Part 4: Applied protection to steel members.
Part 5: Applied protection to concrete/profiled sheet steel composite members.
Part 6: Applied protection to concrete filled hollow steel columns.
Annexes A and C are normative. Annexes B and D are informative.
Caution
The attention of all persons concerned with managing and carrying out this fire resistance test, is drawn to fact that fire testing
can be hazardous and that there is a possibility that toxic and/or harmful smoke and gases can be evolved during the test.
Mechanical and operational hazards can also arise during the construction of test elements or structures, their testing and the
disposal of test residues.
An assessment of all potential hazards and risks to health should be made and safety precautions should be identified and
provided. Written safety instructions should be issued. Appropriate training should be given to relevant personnel. Laboratory
personnel should ensure that they follow written safety instructions at all times.
The specific health and safety instructions contained within this prestandard should be followed.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are
bound to announce this European Prestandard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany,
Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the
United Kingdom.
1Scope
This Part of this European Prestandard specifies a test method to be followed for determining the contribution of
fire protection systems to the fire resistance of structural timber members.
Such fire protection systems include claddings, sprayed fire protection and coatings.
The method is applicable to all fire protection systems used for the protection of timber members. These can be fixed
directly, totally or in part, to the timber member and can include an air gap between the fire protection system and
the timber member, as an integral part of its design.
Evaluation of timber constructions protected by horizontal or vertical protective membranes are the subject of ENV
13381-1 or ENV 13381-2 respectively.
The test method is applicable to the determination of the contribution of fire protection systems to the fire resistance
of loadbearing timber structural members and non-loadbearing parts of the works, including floors, roofs, walls,
beams and columns. It is also applicable to timber structural members incorporating insulating materials between
the timber members, e.g. between timber joists in floor constructions.
The test method and its assessment procedure is designed to permit direct application of the results to cover a range
of thicknesses of the applied fire protection material.
This European Prestandard contains the fire test which specifies the test to be carried out to determine the ability
of the fire protection system to delay the temperature rise throughout the timber member, to determine the ability
of the fire protection system to remain coherent and fixed to the timber member and to provide data of the
temperature profile throughout the timber test member, when exposed to the standard temperature/time curve
according to the procedures defined herein.
In special circumstances, where specified in national building regulations, there can be a need to subject reactive
protection material to a smouldering curve. The test for this and the special circumstances for its use are detailed
in annex A.
The fire test methodology makes provision for the collection and presentation of data which can be used as direct
input to the calculation of fire resistance of timber members in accordance with the procedures given in
ENV 1995-1-2.
A description of the relationship of this test method and the assessment of the results obtained therefrom to
ENV 1995-1-2 and guidelines for the use of this test method in accordance with that standard are given in annex B.
This European Prestandard also contains the assessment which prescribes how the analysis of the test data should
be made and gives guidance to the procedures by which interpolation should be undertaken.
The limits of applicability of the results of the assessment arising from the fire test are defined, together with
permitted direct application of the results to different timber constructions over the range of thicknesses of the
applied fire protection system tested.
2 Normative references
This European Prestandard 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 Prestandard
only when incorporated in it by amendment or revision. For undated references the latest edition of the publication
referred to applies (including amendments).
EN 1363-1 Fire resistance tests - Part 1: General requirements.
EN 1363-2 Fire resistance tests - Part 2: Alternative and additional procedures.
EN 1365-1 Fire resistance tests for loadbearing elements - Part 1: Walls.
EN 1365-2 Fire resistance tests for loadbearing elements - Part 2: Floors and roofs.
EN 1365-3 Fire resistance tests for loadbearing elements - Part 3: Beams.
EN 1365-4 Fire resistance tests for loadbearing elements - Part 4: Columns.
ENV 1995-1-2 Eurocode 5: Design of timber structures
Part 1-2: General rules - Structural fire design.
EN 338 Structural timber - Strength classes.
EN 312 Particleboards - Specifications.
ISO 8421-2 Fire protection -Vocabulary - Part 2: Structural fire protection.
ISO 13943 Fire safety - Vocabulary (ISO 13943:1999).
3 Terms and definitions, symbols and units
3.1 Terms and definitions
For the purposes of this European Prestandard, the terms and definitions given in EN 1363-1, EN ISO 13943 and ISO 8421-2,
together with the following, apply.
3.1.1
timber structural member
element of building construction which may be loadbearing or non-loadbearing and which is mainly constructed from solid
timber and/or other wood based products
3.1.2
fire protection material
material or combination of materials applied to the surface of a timber structural member for the purpose of increasing its fire
resistance
3.1.3
passive fire protection materials
materials which do not change their physical form upon heating, provide fire protection by virtue of their physical or thermal
properties. They may include materials containing water which, on heating, is removed to produce cooling effects
3.1.4
reactive fire protection materials
materials which are specifically formulated to provide a chemical reaction upon heating such that their physical form changes
and in so doing provide fire protection by thermal insulative and cooling effects
3.1.5
fire protection system
fire protection material together with a prescribed method of attachment to a timber structural member. The fire protection
system may include multiple layers of materials and multiple combinations of materials
3.1.6
fire protection
protection afforded to the timber member by the fire protection system such that the rise of temperature of the timber and
fixings is limited or delayed throughout the period of exposure to fire
3.1.7
test specimen
complete assembly of the timber test member plus the fire protection system under test. Within this test method, several timber
beams representative of timber in various constructional environments in a structural building member, may be combined into
a single test specimen
3.1.8
stickability
ability of a fire protection material to remain sufficiently coherent and in position for a well defined range of deformations,
and furnace and test specimen surface temperatures, such that its ability to provide fire protection is not significantly impaired
3.1.9
charring depth
distance from the original surface of the timber member to the char line. The char line is the border-line between char layer
and the residual cross section
3.2 Symbols and units
Symbol Unit Designation.
t min Time.
t min The
...
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