BS EN 13381-2-2014

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BSEN13381 2014
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BSI Standards Publication BS EN 13381-2:2014 Test methods for determining the contribution to the fire resistance of structural members Part 2: Vertical protective membranesBS EN 13381-2:2014 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN 13381-2:2014. It supersedes DD ENV 13381-2:2002 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee FSH/22/-/7, Non loadbearing separating elements. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. © The British Standards Institution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 78056 1 ICS 13.220.50; 13.220.99 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 September 2014. Amendments issued since publication Date Text affectedBS EN 13381-2:2014EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM EN 13381-2 September 2014 ICS 13.220.50; 13.220.99 Supersedes ENV 13381-2:2002 English Version Test methods for determining the contribution to the fire resistance of structural members - Part 2: Vertical protective membranes Méthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 2: Membranes de protection verticales Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 2: Vertikal angeordnete Brandschutzbekleidungen This European Standard was approved by CEN on 25 July 2014. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13381-2:2014 EBS EN 13381-2:2014 EN 13381-2:2014 (E) 2 Contents Page Foreword 4 1 Scope 6 2 Normative references 6 3 Terms and definitions, symbols and units 7 3.1 Terms and definitions .7 3.2 Symbols and units .8 4 Test equipment 8 4.1 General 8 4.2 Furnace .9 4.3 Test frame .9 4.4 Supporting construction .9 4.5 Furnace closure .9 5 Test conditions . 10 5.1 General . 10 5.2 Support and restraint . 10 5.2.1 Standard conditions . 10 5.2.2 Other support and restraint conditions 10 6 Test specimens . 10 6.1 General . 10 6.2 Number of tests . 11 6.3 Size of test specimen . 11 6.4 Structural building members . 11 6.4.1 Standard vertical structural building members . 11 6.4.2 Practical vertical structural members. 12 6.5 Properties of test materials . 13 6.6 Verification of the test specimen 13 6.7 Optional and additional plate thermometers within the cavity 13 7 Installation of the test construction 14 8 Conditioning 14 9 Application of instrumentation 14 9.1 General . 14 9.2 Instrumentation for measurement of furnace temperature 14 9.3 Instrumentation for measurement of specimen temperature 15 9.3.1 General . 15 9.3.2 Instrumentation for measuring cavity temperature 15 9.3.3 Instrumentation for measuring surface temperatures 15 9.3.4 Optional and supplementary instrumentation for measuring temperature 16 9.4 Instrumentation for measurement of pressure 16 10 Test procedure 16 10.1 General . 16 10.2 Furnace temperature and pressure 16 10.3 Temperatures of the test specimen 17 10.4 Observations . 17 10.5 Termination of the test . 17 BS EN 13381-2:2014 EN 13381-2:2014 (E) 3 11 Test results 17 11.1 Acceptability of test results 17 11.2 Presentation of test results 17 12 Test report 18 13 Assessment . 18 13.1 General . 18 13.2 Assessment of loadbearing capacity 19 13.2.1 General . 19 13.2.2 Characteristic temperature curve: cavity temperatures 19 13.2.3 Characteristic temperature curve: surface temperatures (steel or concrete or composite columns) . 19 13.2.4 Application of method of limiting temperatures 19 13.3 Assessment of integrity and insulation 20 13.4 Assessment of data for calculation purposes 20 14 Report of the assessment. 20 15 Limits of applicability of the results of the assessment . 21 15.1 Type of vertical structural building member 21 15.2 Type of steel column . 23 15.3 Size of concrete column . 23 15.4 Size of concrete filled hollow steel composite column . 23 15.5 Type of concrete 23 15.6 Timber column . 24 15.7 Depth of the cavity 24 15.8 Type of closure opposite to the vertical protective membrane 24 15.9 Properties of the vertical protective membrane . 24 15.10 Size of the vertical protective membrane . 24 15.11 Size of panels within the vertical protective membrane . 24 15.12 Fixtures and fittings 24 15.13 Applicability of results from test columns to beams or combined column /beam structural building members 25 Annex A (normative) Measurement of properties of vertical protective membranes and components . 30 A.1 General . 30 A.2 Thickness of vertical protective membrane and components thereof 30 A.3 Density of vertical protective membranes and components thereof . 31 A.3.1 General . 31 A.4 Moisture content of vertical protective membrane and components thereof . 32 Annex B (normative) Test method to the smouldering fire (slow heating curve) 33 B.1 Introduction 33 B.2 Test equipment 33 B.3 Test specimens 33 B.4 Termination of test 33 B.5 Evaluation of the results . 34 Bibliography 35 BS EN 13381-2:2014 EN 13381-2:2014 (E) 4 Foreword This document (EN 13381-2:2014) has been prepared by Technical Committee CEN/TC 127 “Fire safety in buildings”, the secretariat of which is held by BSI. 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 March 2015 and conflicting national standards shall be withdrawn at the latest by March 2015. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document supersedes ENV 13381-2:2002. The main changes with respect to the previous edition are listed below: Clarifications regarding the following items: a) preparation of the test specimen; b) instrumentation of the test specimen (no more steel plate within the cavity); c) limits of applicability. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. This European Standard 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 the standard are: — Part 1: Horizontal 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, — Part 7: Applied protection to timber members, — Part 8: Applied reactive protection to steel members. The fire protection capacity of the vertical protective membrane can be nullified by the presence of combustible materials in the cavity behind the membrane. The applicability of the results of the assessment is limited according to the quantity and position of such combustible materials within that cavity. The amount of combustible material permissible in the cavity should be given in national regulations. 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. BS EN 13381-2:2014 EN 13381-2:2014 (E) 5 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. When testing concrete filled hollow steel composite columns steam release holes shall be provided for the release of steam from the column, during the test, as specified in EN 13381-6. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13381-2:2014 EN 13381-2:2014 (E) 6 1 Scope This European Standard specifies a test method for determining the ability of a vertical protective membrane, when used as a fire resistant barrier, to contribute to the fire resistance (loadbearing capacity R) of loadbearing vertical structural building members fabricated from steel, concrete, steel/concrete composites or timber. The method described is applicable to any type of vertical protective membrane, which can be associated with a separate bracing membrane. The vertical protective membrane can be either separated from or attached to the structural building member and is self-supporting. This test method is applicable to vertical protective membranes where there is a gap and a cavity between the vertical protective membrane and the structural building member, otherwise alternative test methods prEN 13381-3, EN 13381-4, EN 13381-6 or prEN 13381-7 should be used as appropriate. This test method and assessment is not applicable to the following: a) all situations where the cavity is to be used as a service or ventilation shaft; b) all situations where the vertical protective membrane acts as a bracing membrane. This European Standard contains the fire test which specifies the tests which shall be carried out whereby the vertical protective membrane together with the structural member to be protected is exposed to the specified fire. The fire exposure, to the standard temperature/time curve given in EN 1363-1, is applied to the side which would be exposed in practice. The test method makes provision, through specified optional additional procedures, for the collection of data which can be used as direct input to the calculation of fire resistance according to the processes given in EN 1992-1-2, EN 1993-1-2, EN 1994-1-2 and EN 1995-1-2. This European Standard also contains the assessment which provides information relative to the analysis of the test data and gives guidance for the interpretation of the results of the fire test, in terms of loadbearing capacity criteria of the protected vertical structural member. The results of the fire test and the assessment can be applied, with certain defined provisions, to vertical structural building members which can be beams, columns or a combination of both and / or which could form part of a separating element or partition. 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 structures, membranes and fittings. In special circumstances, where specified in national building regulations, there can be a need to subject the protection material to a smouldering curve. The test for this and the special circumstances for its use are detailed in Annex B. Tests should be carried out without additional combustible materials in the cavity. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 206, Concrete - Specification, performance, production and conformity BS EN 13381-2:2014 EN 13381-2:2014 (E) 7 EN 1363-1, Fire resistance tests - Part 1: General Requirements EN 1363-2, Fire resistance tests - Part 2: Alternative and additional procedures EN 1364-1, Fire resistance tests for non-loadbearing elements - Part 1: Walls EN 1365-1, Fire resistance tests for loadbearing elements - Part 1: Walls EN 1992-1-2, Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural fire design EN 1993-1-2, Eurocode 3: Design of steel structures - Part 1-2: General rules - Structural fire design EN 1994-1-2, Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design EN 1995-1-2:2004, Eurocode 5: Design of timber structures - Part 1-2: General - Structural fire design EN 10025-1, Hot rolled products of structural steels – Part 1: General technical delivery conditions EN 10080, Steel for the reinforcement of concrete - Weldable reinforcing steel - General EN 10210-1, Hot finished structural hollow sections of non-alloy and fine grain steels - Part 1: Technical delivery conditions prEN 13381-3, Test methods for determining the contribution to the fire resistance of structural members - Part 3: Applied protection to concrete members EN 13381-4, Test methods for determining the contribution to the fire resistance of structural members - Part 4: Applied passive protection to steel members EN 13381-6, Test methods for determining the contrib
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