1、BSI Standards PublicationBS EN 13381-3:2015Test methods for determiningthe contribution to thefire resistance of structuralmembersPart 3: Applied protection to concretemembersBS EN 13381-3:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13381-3:2015.It supe
2、rsedes DD ENV 13381-3:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee FSH/22/-/12, Fire resistance tests For Protection Systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does n
3、ot purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015. Published by BSI StandardsLimited 2015ISBN 978 0 580 78055 4ICS 13.220.50; 91.060.01; 91.080.40Compliance with a British Standard cannot confer i
4、mmunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2015.Amendments issued since publicationDate Text affectedBS EN 13381-3:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13381-3 April 2015 ICS 13.2
5、20.50; 91.080.40 Supersedes ENV 13381-3:2002English Version Test methods for determining the contribution to the fire resistance of structural members - Part 3: Applied protection to concrete members Mthodes dessai pour dterminer la contribution la rsistance au feu des lments de construction - Parti
6、e 3: Protection applique aux lments en bton Prfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 3: Brandschutzmanahmen fr Betonbauteile This European Standard was approved by CEN on 8 November 2014. CEN members are bound to comply with the CEN/CENELEC Interna
7、l 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 CE
8、N 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 versi
9、ons. 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, P
10、oland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitati
11、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13381-3:2015 EBS EN 13381-3:2015EN 13381-3:2015 (E) 2 Contents Page Foreword 5 1 Scope 7 2 Normative references 7 3 Terms and definitions, symbols and units 8 3.1 Terms and definitions .8 3.2 Symbols and units .
12、9 4 Test equipment . 10 4.1 General . 10 4.2 Furnace 10 4.3 Loading equipment . 10 5 Test conditions . 10 5.1 General . 10 5.2 Support and restraint conditions 11 5.2.1 Standard support and restraint conditions 11 5.2.2 Other support and restraint conditions 11 5.3 Loading conditions . 11 6 Test spe
13、cimens . 12 6.1 Type and number of test specimens 12 6.1.1 Type of test specimens 12 6.1.2 Number of test specimens . 12 6.2 Size of test specimens . 13 6.2.1 Concrete slabs 13 6.2.2 Concrete beams 13 6.3 Construction of concrete test specimens 14 6.3.1 Concrete slab test members 14 6.3.2 Concrete b
14、eam test members . 14 6.3.3 Fabrication of concrete test members . 14 6.3.4 Application of fire protection material (except ceiling) to concrete test member . 15 6.3.5 Installation of a ceiling below the concrete slab . 15 6.4 Composition of test specimen component materials . 16 6.4.1 Concrete 16 6
15、.4.2 Steel reinforcement 16 6.4.3 Fire protection system . 16 6.5 Properties of test materials . 16 6.5.1 General . 16 6.5.2 Concrete 16 6.5.3 Steel reinforcement 17 6.5.4 Fire protection materials 17 6.6 Verification of the test specimen 17 7 Installation of the test construction 18 7.1 Concrete la
16、rge slab test specimens . 18 7.2 Concrete small slab test specimens . 18 7.3 Concrete beam test specimens . 18 8 Conditioning 18 BS EN 13381-3:2015EN 13381-3:2015 (E) 3 9 Application of instrumentation 19 9.1 General . 19 9.2 Instrumentation for measurement of furnace temperature . 19 9.2.1 Slab spe
17、cimens . 19 9.2.2 Beam specimens . 19 9.3 Instrumentation for the measurement of test specimen temperature . 19 9.3.1 General . 19 9.3.2 Large and small concrete slab test specimens 20 9.3.3 Beams . 20 9.3.4 Equivalent locations as referred to in 11.2 are: . 21 9.4 Instrumentation for the measuremen
18、t of pressure 22 9.5 Instrumentation for the measurement of deformation 22 9.6 Instrumentation for the measurement of applied load 22 10 Test procedure . 22 10.1 General . 22 10.2 Furnace temperature and pressure . 22 10.3 Application and control of load . 22 10.4 Temperature of test specimen . 23 1
19、0.5 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 13 Assessment . 25 13.1 General . 25 13.2 Concrete slabs . 26 13.3 Concrete beams . 26 13.4 Insulation 27 13.5 Stick
20、ability 27 13.6 Equivalent thickness of concrete 27 14 Report of the assessment 27 15 Limits of applicability of the results of the assessment . 28 16 Additional limits of applicability of the results of the assessment for suspended ceilings used as protection system . 30 16.1 Height of the cavity .
21、 30 16.2 Exposed width of test specimen 30 16.3 Properties of the horizontal protective membrane 30 16.4 Size of panels within the horizontal protective membrane . 30 16.5 Fixtures and fittings 30 16.6 Gaps between grid members and test frame or walls . 31 Annex A (normative) Test method to the smou
22、ldering fire or slow heating curve 44 A.1 Introduction 44 A.2 Evaluation of the results . 44 Annex B (normative) Measurement of properties of fire protection materials . 46 B.1 General . 46 B.2 Thickness of fire protection materials 46 B.3 Density of applied fire protection materials . 47 BS EN 1338
23、1-3:2015EN 13381-3:2015 (E) 4 B.3.1 General . 47 B.4 Moisture content of applied fire protection materials . 48 Annex C (normative) Equivalent thickness of concrete . 49 C.1 General . 49 C.1.1 General . 49 C.1.2 Equivalent thickness of concrete slabs - preliminary data collection 49 C.1.3 Equivalent
24、 thickness of concrete beams - preliminary data collection 49 C.2 Equivalent thickness of concrete slabs and beams - assessment methodology 50 Annex D (normative) Calculation of stresses in standard concrete structures 58 D.1 General . 58 D.2 Relevant concrete structures 58 D.3 Distribution of stres
25、ses across the section of the concrete structures . 58 D.4 Mechanical study 59 D.4.1 Equilibrium of external forces . 59 D.4.2 Determination of the position of the neutral axis (x) 59 D.4.3 Determination of the quadratic modulus . 60 D.4.4 Determination of stresses in reinforcement bars and concrete
26、 60 Annex E (informative) Calculation of the load to apply on concrete member . 63 E.1 Remind and scheme . 63 E.2 Calculation of the force of the spring for a loaded beam . 63 E.3 Calculation of the force of the spring for a loaded large slab . 64 Bibliography . 66 BS EN 13381-3:2015EN 13381-3:2015
27、(E) 5 Foreword This document (EN 13381-3:2015) 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 endorsemen
28、t, at the latest by October 2015 and conflicting national standards shall be withdrawn at the latest by October 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
29、 any or all such patent rights. This document supersedes ENV 13381-3:2002. 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. The dimension tolerances regarding the manufa
30、cturing of the specimen indicated in the ENV 13381-3:2002 led to tensile stress values of 290 +/- 30 N/mm in the reinforcement bars depending on the type of structural member. In order to harmonize the mechanical constraint applied on the structural member, the bending moment has been modified to pr
31、oduce the same tensile stress on reinforcement bars equal to 300 N/mm. This value is corresponding to 60 % of the grade of the steel to be used. Due to this approach, the result of tests carried out according to ENV 13381-3:2002 can be taken into account for assessment according to the present docum
32、ent. In comparison with ENV 13381-3:2002, the following significant changes have been made: the bending moment has been modified to be adapted to the thickness of the slab; the location of thermocouple used within beams for the calculation of equivalent thickness of concrete is now at 25 mm away fro
33、m the beam bottom corner instead of 55 mm; the graphs to be used for the determination of equivalent concrete thickness for slabs has been improved and extended and is directly available in the standard. This European Standard is one of a series of standards for evaluating the contribution to the fi
34、re resistance of structural members by applied fire protection materials. The other parts of this standard are: Part 1: Horizontal protective membranes Part 2: Vertical protective membranes Part 4: Applied protection to steel members Part 5: Applied protection to concrete/profiled sheet steel compos
35、ite 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 Annexes A, B and C are normative. BS EN 13381-3:2015EN 13381-3:2015 (E) 6 Caution: The attention of all persons concerned w
36、ith 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
37、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
38、personnel. Laboratory personnel should ensure that they follow written safety instructions at all times. The specific health and safety instructions contained within this standard should be followed. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the follo
39、wing 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, N
40、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13381-3:2015EN 13381-3:2015 (E) 7 1 Scope This European Standard specifies a test method for determining the contribution of fire protection systems to the fire resistance of struct
41、ural concrete members, for instance slabs, floors, roofs and walls and which can include integral beams and columns. The concrete can be lightweight, normal weight or heavyweight concrete and of all strength classes (e.g. 20/25 to 50/60 for normal strength concrete and for high strength concrete 55/
42、67 to 90/105). The member is to contain steel reinforcing bars. The test method is applicable to all fire protection materials used for the protection of concrete members and includes sprayed materials, reactive coatings, cladding protection systems and multi-layer or composite fire protection mater
43、ials, with or without a gap between the fire protection material and the concrete member This European Standard specifies the tests which are to be carried out to determine the ability of the fire protection material to remain coherent and fixed to the concrete and to provide data on the temperature
44、 distribution throughout the protected concrete member, when exposed to the standard temperature time curve. 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 ci
45、rcumstances 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 concrete members in accordance with the procedures given in EN 1992-1-2. This European Sta
46、ndard also contains the assessment which prescribes how the analysis of the test data is to be made and gives guidance to the procedures by which interpolation is to be undertaken. The limits of applicability of the results of the assessment arising from the fire test are defined together with permi
47、tted direct application of the results to different concrete structures, densities, strengths, thicknesses and production techniques over the range of thicknesses of the applied fire protection system tested. The test method, the test results and the assessment method are not applicable to structura
48、l hollow concrete members. 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 do
49、cument (including any amendments) applies. EN 206, Concrete - Specification, performance, production and conformity EN 823, Thermal insulating products for building applications - Determination of thickness EN 1363-1, Fire resistance tests - Part 1: General Requirements EN 1363-2, Fire resistance tests - Part 2: Alternative and additional procedures EN 1992-1-1, Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings EN 1992-1-2, Eurocode 2: Design of concrete structures - Part 1-2: General rules - Structural f
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