Test methods for determining the contribution to the fire resistance of structural members - Part 4: Applied passive protection products to steel members

This specifies the test methods for determining the contribution to the fire resistance of structural members for applied protection to steel members.

Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 4: Passive Brandschutzmaterialien für Stahlbauteile

Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung des Beitrages von Brandschutzsystemen zum
Feuerwiderstand von Stahlbauteilen wie Balken, Stützen oder Zuggliedern fest.
Die Bewertung ist so konzipiert, dass diese einen Bereich von Dicken des Brandschutzmaterials, einen Bereich
von Stahlquerschnitten, die durch ihre Profilfaktoren beschrieben sind, einen Bereich von Bemessungstemperaturen,
sowie einen Gültigkeitsbereich von Klassifizierungszeiten der Brandschutzmaßnahme umfasst.
Diese Europäische Norm ist für Brandschutzmaterialien anwendbar, bei denen der Hohlraum zwischen dem
Material der Brandschutzbekleidung und der Oberfläche des Flansches vom Stahlbauteil kleiner als 5 mm ist.
Andernfalls ist das Prüfverfahren je nach Anwendung nach EN 13381-1 oder EN 13381-2 durchzuführen.
Diese Europäische Norm beinhaltet das Prüfverfahren, das durchzuführen ist, um das Leistungsvermögen des
Brandschutzsystems sowohl hinsichtlich seiner Formstabilität als auch ihrer Haftungseigenschaft mit den zu
schützenden Stahlbauteilen zu bestimmen. Weiterhin werden Messwerte zum thermischen Verhalten der
Brandschutzsysteme ermittelt, wenn diese durch die Einheits-Temperaturzeitkurve nach EN 1363-1 beansprucht
werden.
Sofern in nationalen Bauvorschriften festgelegt, kann es in besonderen Fällen für reaktive Brandschutzbeschichtungen
erforderlich sein, diese durch eine Schwelbrandkurve zu beanspruchen. Das Prüfverfahren hierzu
und die Gründe für ihre Benutzung sind in Anhang A aufgeführt.
Das Brandprüfverfahren erlaubt die Ermittlung und Darstellung von Messwerten, die als direkte Eingangswerte zur
Ermittlung der Feuerwiderstandsfähigkeit von tragenden Stahlbauteilen nach EN 1993-1-2 anwendbar sind.
Diese Europäische Norm beinhaltet ebenfalls die Beurteilung, die festlegt, wie die Analyse der Messwerte
durchzuführen ist, sowie eine Anleitung zur Interpolation.

Méthode d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 4 : Revêtements non réactifs

Cette partie de la présente Norme européenne spécifie une méthode d'essai permettant de déterminer la contribution apportée par l'application de systèmes de protection au feu aux éléments de construction en acier pouvant être utilisés comme des poutres ou des poteaux. Elle ne prend en compte que les tronçons ne comportant pas d'ouverture dans l'âme. Elle ne s'applique pas directement aux éléments précontraints sans évaluation supplémentaire. Les résultats des analyses des sections en I ou H s'appliquent directement aux cornières, profilés en U et sections en T pour le même facteur de massiveté, qu'ils soient utilisés individuellement ou en entretoisement. La présente norme ne s'applique pas aux barres ni aux tiges pleines.
Elle couvre les systèmes de protection au feu qui impliquent uniquement des matériaux passifs et non les matériaux réactifs de protection au feu tels que définis dans le présent document.
L'évaluation est conçue pour couvrir une plage d'épaisseurs du matériau de protection au feu appliqué, une plage de tronçons d'acier, caractérisés par leurs facteurs de massiveté, une plage de températures données et une plage de durées de résistance au feu.
La présente Norme européenne comprend l'essai au feu qui spécifie les essais devant être réalisés pour déterminer l'aptitude du système de protection au feu à rester cohérent et fixé sur l’ouvrage en acier et pour fournir des données sur les caractéristiques thermiques du système de protection au feu lorsqu'il est exposé à la courbe normalisée température/temps prescrite dans l'EN 1363-1.
La méthodologie des essais au feu comporte des dispositions concernant le recueil et la présentation de données susceptibles de servir comme des entrées directes pour le calcul de la résistance au feu d'éléments de construction en acier conformément aux modes opératoires donnés dans l'EN 1993­1­2 et l'EN 1994-1-2.

Preskusne metode za ugotavljanje prispevka k požarni odpornosti konstrukcijskih elementov - 4. del: Pasivna požarna zaščita za konstrukcijska jekla

General Information

Status
Not Published
Public Enquiry End Date
09-Mar-2009
Technical Committee
Current Stage
98 - Abandoned project (Adopted Project)
Start Date
11-Oct-2013
Due Date
16-Oct-2013
Completion Date
11-Oct-2013

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SLOVENSKI STANDARD
oSIST prEN 13381-4:2009
01-februar-2009
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HOHPHQWRYGHO=DãþLWDMHNOHQLKHOHPHQWRY

Test methods for determining the contribution to the fire resistance of structural members

- Part 4: Applied passive protection products to steel members
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden
Bauteilen - Teil 4: Passive Brandschutzmaterialien für Stahlbauteile

Méthode d'essai pour déterminer la contribution à la résistance au feu des éléments de

construction - Partie 4 : Revêtements non réactifs
Ta slovenski standard je istoveten z: prEN 13381-4
ICS:
13.220.50 Požarna odpornost Fire-resistance of building
gradbenih materialov in materials and elements
elementov
91.080.10 Kovinske konstrukcije Metal structures
oSIST prEN 13381-4:2009 en,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 13381-4:2009
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oSIST prEN 13381-4:2009
EUROPEAN STANDARD
DRAFT
prEN 13381-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2008
ICS 91.080.10; 13.220.50 Will supersede ENV 13381-4:2002
English Version
Test methods for determining the contribution to the fire
resistance of structural members - Part 4: Applied passive
protection products to steel members

Méthode d'essai pour déterminer la contribution à la Prüfverfahren zur Bestimmung des Beitrages zum

résistance au feu des éléments de construction - Partie 4 : Feuerwiderstand von tragenden Bauteilen - Teil 4: Passive

Revêtements non réactifs Brandschutzmaterialien für Stahlbauteile

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee CEN/TC 127.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language

made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the

same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,

France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,

Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to

provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and

shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2008 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 13381-4:2008: E

worldwide for CEN national Members.
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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)
Contents Page

Foreword............................................................................................................................................................. 5

1 Scope...................................................................................................................................................... 6

2 Normative references ........................................................................................................................... 7

3 Terms and definitions, symbols and units......................................................................................... 7

3.1 Terms and definitions........................................................................................................................... 7

3.2 Symbols and units ................................................................................................................................ 9

4 Test equipment.................................................................................................................................... 11

4.1 General................................................................................................................................................. 11

4.2 Furnace ................................................................................................................................................ 11

4.3 Loading equipment............................................................................................................................. 11

5 Test conditions.................................................................................................................................... 11

5.1 General................................................................................................................................................. 11

5.2 Support and loading conditions........................................................................................................ 11

5.2.1 Loaded beams ..................................................................................................................................... 11

5.2.2 Unloaded beams ................................................................................................................................. 12

5.2.3 Loaded columns.................................................................................................................................. 12

5.2.4 Unloaded columns.............................................................................................................................. 12

5.3 Loading ................................................................................................................................................ 12

6 Test specimens ................................................................................................................................... 13

6.1 Number of test specimens ................................................................................................................. 13

6.1.1 General................................................................................................................................................. 13

6.1.2 Passive fire protection systems ........................................................................................................ 13

6.1.3 Reactive fire protection systems....................................................................................................... 13

6.1.4 Precautions against erroneous results ............................................................................................ 14

6.2 Size of test specimens........................................................................................................................ 14

6.2.1 Loaded beam test sections................................................................................................................ 14

6.2.2 Unloaded beam test sections ............................................................................................................ 14

6.2.3 Loaded column test sections ............................................................................................................ 14

6.2.4 (Unloaded) Tall column test sections ............................................................................................... 14

6.2.5 Short column test sections................................................................................................................ 14

6.3 Construction of steel test specimens............................................................................................... 15

6.3.1 Loaded beam test sections................................................................................................................ 15

6.3.2 Unloaded beam test sections ............................................................................................................ 15

6.3.3 Loaded column test sections ............................................................................................................ 15

6.3.4 Unloaded tall column test section..................................................................................................... 15

6.3.5 Short steel column test sections....................................................................................................... 15

6.3.6 Application of the fire protection material to the steel test section .............................................. 16

6.4 Composition of test specimen component materials ..................................................................... 16

6.4.1 Steel sections ...................................................................................................................................... 16

6.4.2 Fire protection system........................................................................................................................ 16

6.5 Properties of test specimen component materials ......................................................................... 16

6.5.1 Steel...................................................................................................................................................... 16

6.5.2 Fire protection materials .................................................................................................................... 17

6.6 Verification of the test specimen....................................................................................................... 18

7 Installation of the test specimens ..................................................................................................... 18

7.1 Loaded beam ....................................................................................................................................... 18

7.2 Unloaded beam ................................................................................................................................... 19

7.3 Loaded columns.................................................................................................................................. 19

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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)

7.4 Unloaded columns.............................................................................................................................. 19

7.5 Test specimen installation patterns.................................................................................................. 19

8 Conditioning of the test specimens .................................................................................................. 19

9 Application of instrumentation.......................................................................................................... 19

9.1 General................................................................................................................................................. 19

9.2 Instrumentation for measurement of furnace temperature ............................................................ 20

9.2.1 General................................................................................................................................................. 20

9.2.2 Furnace temperature in the region of beam test specimens ......................................................... 20

9.2.3 Furnace temperature in the region of column test specimens ...................................................... 20

9.3 Instrumentation for measurement of steel temperatures............................................................... 20

9.3.1 General................................................................................................................................................. 20

9.3.2 Loaded beam test specimens............................................................................................................ 21

9.3.3 Unloaded beam test specimens ........................................................................................................ 21

9.3.4 Loaded column test specimens ........................................................................................................ 21

9.3.5 Unloaded tall column test specimen................................................................................................. 21

9.3.6 Short column test specimens............................................................................................................ 21

9.4 Instrumentation for the measurement of pressure ......................................................................... 21

9.5 Instrumentation for the measurement of deformation.................................................................... 21

9.6 Instrumentation for the measurement of load ................................................................................. 21

10 Test procedure .................................................................................................................................... 22

10.1 General................................................................................................................................................. 22

10.2 Furnace temperature and pressure................................................................................................... 22

10.3 Application and control of load ......................................................................................................... 22

10.3.1 Loaded beams ..................................................................................................................................... 22

10.3.2 Loaded columns.................................................................................................................................. 22

10.4 Temperature of steelwork .................................................................................................................. 23

10.5 Deformation ......................................................................................................................................... 23

10.6 Observations ....................................................................................................................................... 23

10.7 Termination of test.............................................................................................................................. 23

11 Test results .......................................................................................................................................... 23

11.1 Acceptability of test results ............................................................................................................... 23

11.2 Presentation of test results................................................................................................................ 24

12 Test report ........................................................................................................................................... 25

12.1 General................................................................................................................................................. 25

13 Assessment ......................................................................................................................................... 26

13.1 General................................................................................................................................................. 26

13.2 All fire protection systems................................................................................................................. 26

13.2.1 General................................................................................................................................................. 26

13.2.2 Temperature of steel sections ........................................................................................................... 27

13.2.3 Correction for discrepancy in thickness .......................................................................................... 27

13.2.4 Correction of temperature data for stickability................................................................................ 28

13.3 Reactive fire protection systems....................................................................................................... 29

13.3.1 General................................................................................................................................................. 29

13.3.2 Correction of temperature data for localised high temperature .................................................... 29

13.3.3 Correction for discrepancy in thickness .......................................................................................... 29

13.3.4 Correction to temperature data for stickability................................................................................ 29

13.3.5 Choice of k (θ)..................................................................................................................................... 31

13.4 Presentation of data to be used in the assessment ........................................................................ 31

13.5 Assessment procedures for thermal performance ......................................................................... 31

13.5.1 General................................................................................................................................................. 31

13.5.2 Differential equation analysis method.............................................................................................. 32

13.5.3 Numerical regression analysis method............................................................................................32

13.5.4 Graphical analysis method ................................................................................................................ 32

13.6 Acceptability of the assessment method used and the resulting analysis .................................. 32

13.6.1 Criteria for acceptability..................................................................................................................... 32

13.6.2 Modification of the analysis............................................................................................................... 32

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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)

13.7 Three and four sided exposure ......................................................................................................... 33

14 Report of the assessment .................................................................................................................. 33

15 Limits of the applicability of the results of the assessment........................................................... 34

A.1 Introduction ......................................................................................................................................... 62

A.2 Test equipment.................................................................................................................................... 62

A.3 Test specimens ................................................................................................................................... 62

A.4 Termination of test.............................................................................................................................. 63

A.5 Evaluation of the results .................................................................................................................... 63

B.1 Structural hollow sections ................................................................................................................. 65

B.2 Angles, channels and ‘t’ sections ..................................................................................................... 67

C.1 Introduction ......................................................................................................................................... 68

C.2 Thickness of fire protection materials.............................................................................................. 68

C.3 Density of applied fire protection materials..................................................................................... 70

C.4 Moisture content of applied fire protection materials..................................................................... 70

D.1 Introduction ......................................................................................................................................... 72

D.2 Types of thermocouples..................................................................................................................... 72

D.3 Fixing of thermocouples .................................................................................................................... 72

D.4 Routing of thermocouple wires ......................................................................................................... 73

D.5 Connection of thermocouples ........................................................................................................... 73

D.6 Thermocouple failures........................................................................................................................ 73

F.1 Input data ............................................................................................................................................. 75

F.2 Basic Equation .................................................................................................................................... 75

F.3 Methodology........................................................................................................................................ 76

G.1 Input data ............................................................................................................................................. 82

G.2 Basic Equation .................................................................................................................................... 82

G.3 Methodology........................................................................................................................................ 83

H.1 Data....................................................................................................................................................... 84

H.2 Basic Equation .................................................................................................................................... 84

H.3 Methodology........................................................................................................................................ 84

I.1 Data....................................................................................................................................................... 85

I.2 Methodology........................................................................................................................................ 85

Bibliography ..................................................................................................................................................... 88

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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)
Foreword

This document (prEN 13381-4:2008) has been prepared by Technical Committee CEN/TC 127 “Fire

safety in buildings”, the secretariat of which is held by BSI.
This document is currently submitted to the CEN Enquiry.
This document will supersede ENV 13381-4:2002.

This document has been prepared under a mandate given to CEN by the European Commission and

the European Free Trade Association, and supports essential requirements of 89/106/EEC.

This document 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 EN are:

Part 1: Horizontal protective membranes.
Part 2: Vertical protective membranes.
Part 3: Applied protection to concrete members.
Part 5: Applied protection to concrete/profiled sheet steel composite members.
Part 6: Applied protection to concrete filled hollow steel composite columns.
Part 7: Applied protection to timber members.
Annexes A to J are normative.

CAUTION — The attention of all persons concerned with managing and carrying out this fire

resistance test, is drawn to the 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 shall be made and safety precautions shall

be identified and provided. Written safety instructions shall be issued. Appropriate training shall be

given to relevant personnel. Laboratory personnel shall ensure that they follow written safety

instructions at all times.

The specific health and safety instructions contained within this Standard shall be followed.

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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)
1 Scope

This part of this European Standard specifies a test method for determining the contribution made by

applied fire protection systems to the fire resistance of structural steel members, which can be used

as beams, columns or tension members.

The evaluation is designed to cover a range of thicknesses of the applied fire protection material, a

range of steel sections, characterized by their section factors, a range of design temperatures and a

range of valid fire protection classification periods.

This European Standard applies to fire protection materials where the gap between the material and

the flange faces of the steel member is less than 5 mm in size. Otherwise, the test methods in

EN 13381-1 or EN 13381-2, as appropriate, apply.

This European Standard contains the fire test which specifies the tests which shall be carried out to

determine the ability of the fire protection system to remain coherent and fixed to the steelwork, and to

provide data on the thermal characteristics of the fire protection system, when exposed to the

standard temperature/time curve specified in EN 1363-1.

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 described 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 steel structural members in accordance with

the procedures given in EN 1993-1-2.

This European Standard also contains the assessment which prescribes how the analysis of the test

data shall be made and gives guidance on the procedures by which interpolation shall be undertaken.

The assessment procedure is used to establish:

a) on the basis of temperature data derived from testing loaded and unloaded sections, a correction

factor and any practical constraints on the use of the fire protection system under fire test

conditions, (the physical performance);

b) on the basis of the temperature data derived from testing short steel column sections, the thermal

properties of the fire protection system, (the thermal performance).

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 steel sections and grades and to

different fire protection systems and fixings.

The results of the test and assessment obtained according to this part of EN 13381 are directly

applicable to steel sections of "I" and "H" cross sectional shape. Guidance is given in annex B on the

application of the data obtained from "I" and "H" steel sections to other section shapes.

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oSIST prEN 13381-4:2009
prEN 13381-4:2008 (E)
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 1363-1, Fire resistance tests — Part 1: General requirements
EN 1363-2, Fire resistance tests — Part 2: Alternative and additional procedures

EN 10025, Hot rolled products of non-alloy structural steels — Technical delivery conditions

EN 10113, Hot rolled products in weldable fine grade structural steels
EN 1993-1-1, Eurocode 3: Design of steel structures — Part 1-1: General rules a
...

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