SIST EN 13381-5:2014
(Main)Test methods for determining the contribution to the fire resistance of structural members - Part 5: Applied protection to concrete/profiled sheet steel composite member
Test methods for determining the contribution to the fire resistance of structural members - Part 5: Applied protection to concrete/profiled sheet steel composite member
This European Standard specifies a test method for determining the contribution of fire protection systems to the fire resistance of structural concrete/profiled sheet steel composite members or slabs. The concrete can be lightweight, normal-weight or heavy-weight concrete and of strength classes 20/25 (LC/C/HC) to 50/60 (LC/C/HC).
The method is applicable to all fire protection systems used for the protection of such structural composite members or slabs and includes sprayed fire protection, coatings, cladding protection systems and multi-layer or composite fire protection materials.
The test method and its assessment procedure are designed to permit direct application of the results to cover a range of thicknesses of the applied fire protection material.
The test method is applicable to all fire protection materials used for the protection of concrete/steel composite members or slab and includes sprayed materials, coatings, cladding protection systems and multi-layer or composite fire protection materials, with or without a cavity between the fire protection material and the concrete/steel composite members or slab.
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 composite member and to provide data on the temperatures of the steel sheet, throughout the depth of the concrete (for extended application purposes) and the unexposed surface of the concrete, 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 concrete/steel composite members in accordance with the procedures given in EN 1994-1-2.
This European Standard also contains the assessment which prescribes how the analysis of the test data shall be made and gives guidance to the procedures by which interpolation shall 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 steel/concrete composite structures, steel types and thicknesses, concrete densities, strengths, thicknesses and production techniques over the range of thicknesses of the applied fire protection system tested.
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 5: Brandschutzmaßnahmen für profilierte Stahlblech/Beton-Verbundkonstruktionen
Diese Europäische Norm legt ein Prüfverfahren zur Bestimmung des Beitrags von Brandschutzsystemen zur Feuerwiderstandsfähigkeit von tragenden profilierten Stahlblech/Beton-Verbundkonstruktionen oder Verbundplatten fest. Der Beton kann Leichtbeton, Normalbeton oder Schwerbeton der Festigkeits-klassen 20/25 (LC/C/HC) bis 50/60 (LC/C/HC) sein. Das Prüfverfahren gilt für alle Brandschutzsysteme, die für den Schutz derartiger tragender Verbundkonstruktionen oder -platten verwendet werden und beinhaltet aufgesprühte Brandschutzmaterialien, Bekleidungen, Beschichtungsschutzsysteme sowie Mehrschicht- oder Verbundsysteme. Das Prüfverfahren und sein Beurteilungsverfahren sind so ausgelegt, dass eine direkte Anwendung der Ergebnisse möglich ist, um einen Bereich von Dicken des aufgebrachten Brandschutzmaterials abzudecken. Das Prüfverfahren gilt für alle Brandschutzmaterialien, die zum Schutz von Stahlblech/Beton-Verbund-konstruktionen oder Verbundplatten verwendet werden und beinhaltet aufgesprühte Brandschutzmaterialien, Bekleidungen, Beschichtungsschutzsysteme sowie Mehrschicht- oder Verbundsysteme, mit oder ohne Hohlraum zwischen dem Brandschutzmaterial und den Stahlblech/Beton-Verbundbauteilen oder -Verbundplatten. Diese Europäische Norm beinhaltet die Brandprüfung, die die Prüfungen festlegt, die durchzuführen sind, um die Fähigkeit des Brandschutzsystems, zusammenhängend und mit der Verbundkonstruktion fest verbunden zu bleiben, zu bestimmen und um Messwerte für die Temperaturen des Stahlblechs über die gesamte Tiefe des Betons (für erweiterte Anwendungszwecke) und die unbeflammte Oberfläche des Betons zu liefern, wenn diese der Einheits-Temperaturzeitkurve nach den hier festgelegten Verfahren ausgesetzt werden. Unter besonderen Umständen, die in nationalen Bauvorschriften festgelegt sind, kann es erforderlich sein, das reaktive Brandschutzmaterial einer Schwelbrandkurve zu unterziehen. Die diesbezügliche Prüfung und die besonderen Umstände für deren Anwendung sind in Anhang A ausführlich beschrieben. Die Methodologie der Brandprüfung bietet die Möglichkeit, Messwerte zu erfassen und darzustellen, die direkt als Eingangswerte zur Berechnung des Feuerwiderstandes von Stahlblech/Beton-Verbundkonstruktionen entsprechend den Verfahren nach EN 1994-1-2 verwendet werden können. Diese Europäische Norm beinhaltet ebenfalls die Beurteilung, die vorschreibt, wie die Analyse der Messwerte durchzuführen ist und enthält Hinweise auf die Verfahren, mit denen die Interpolation durchzuführen ist. Die Grenzen der Anwendbarkeit der Ergebnisse aus der Beurteilung der Brandprüfung sind gemeinsam mit dem zulässigen direkten Anwendungsbereich der Ergebnisse auf unterschiedliche Stahlblech/Beton-Verbundkonstruktionen, Stahlgüten und Dicken, Betonrohdichten, Festigkeiten, Dicken und Herstellungs-techniken über den Dickenbereich des geprüften Brandschutzsystems festgelegt.
Méthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 5: Protection appliquée aux dalles mixtes béton/tôle d'acier profilée
La présente Norme européenne 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, c’est-à-dire des dalles de construction mixtes béton/tôle d'acier profilée. Le béton peut être de type léger, normal ou dense et de classes de résistance aux contraintes 20/25 (LC/C/HC) à 50/60 (LC/C/HC).
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 méthode d'essai est applicable à tous les matériaux de protection contre le feu utilisés pour la protection des éléments ou dalles mixtes béton/acier et englobe les matériaux appliqués par projection, les revêtements, les systèmes de protection en plaque et les matériaux de protection contre le feu multicouches ou mixte, avec ou sans cavité entre le matériau de protection contre le feu et les éléments ou dalles mixtes béton/acier.
La présente Norme européenne contient l'essai au feu, qui spécifie les essais à effectuer pour déterminer l'aptitude du système de protection contre le feu à rester cohérent et fixé sur l'élément mixte et pour obtenir des données concernant les températures de la tôle d'acier, dans toute l'épaisseur du béton (pour des extensions d'application) et sur la surface du béton non exposée, lorsque cet élément est exposé au feu suivant la courbe de température/temps normalisée, conformément aux procédures définies dans le présent document.
Dans des circonstances particulières, lorsque des règlements nationaux le prescrivent, il peut être nécessaire de soumettre les matériaux réactifs de protection contre le feu à la courbe de feu couvant. Ce type d'essai et les circonstances particulières pour son utilisation sont décrits dans l'Annexe A.
La méthodologie de l'essai au feu prévoit la collecte et la présentation des informations qui peuvent être utilisées comme des données directes pour le calcul de la résistance au feu des éléments mixtes béton/acier conformément aux procédures définies dans l'EN 1994-1-2.
La présente Norme européenne contient également l'évaluation qui prescrit la méthode d'analyse des données d'essai à utiliser et donne des indications concernant les procédures d'interpolation.
Les limites d'application des résultats de l'évaluation découlant de l'essai au feu sont définies, ainsi que l'application directe autorisée des résultats à d'autres structures mixtes béton/acier, d'autres types et épaisseurs d'acier et d'autres masses volumiques, résistances, épaisseurs et techniques de fabrication du béton, pour la gamme d'épaisseurs du système de protection contre le feu appliqué soumis à essai.
Preskusne metode za ugotavljanje prispevka k požarni odpornosti konstrukcijskih elementov - 5. del: Zaščita kompozitnih elementov iz betona in jeklene profilirane pločevine
Ta evropski standard določa preskusno metodo za ugotavljanje prispevka sistemov protipožarnega varstva k požarni odpornosti konstrukcijskih kompozitnih elementov ali plošč iz betona in jeklene profilirane pločevine. Beton je lahko lahek, normalen ali težek beton razredov moči od 20/25 (LC/C/HC) do 50/60 (LC/C/HC).
Ta metoda velja za vse sisteme protipožarnega varstva, ki se uporabljajo za zaščito takšnih konstrukcijskih kompozitnih elementov ali plošč, in vključuje protipožarno varnost z razprševanjem, premaze, zaščitne sisteme fasadnih oblog in večplastne oziroma kompozitne protipožarne materiale.
Preskusna metoda in njen postopek presoje sta zasnovana tako, da omogočata neposredno uporabo rezultatov preskusa za različne debeline uporabljenih protipožarnih materialov.
Preskusna metoda velja za vse protipožarne materiale, ki se uporabljajo za zaščito kompozitnih elementov ali plošč iz betona in jeklene profilirane pločevine, in vključuje protipožarno varnost z razprševanjem, premaze, zaščitne sisteme fasadnih oblog in večplastne oziroma kompozitne protipožarne materiale, z ali brez prostora med protipožarnim materialom in kompozitnimi elementi ali ploščami iz betona in jeklene profilirane pločevine.
Ta evropski standard vključuje preskušanje požarne varnosti, kar določa preskuse, ki jih je treba opraviti za ugotavljanje zmožnosti sistema protipožarnega varstva glede ohranjanja skladnosti in pritrditve na kompozitni element ter za pridobitev podatkov o temperaturi jeklene profilirane pločevine, celotni debelini betona (za namene razširjene uporabe) in neizpostavljeni površini betona v času izpostavljenosti standardni krivulji temperatura-čas v skladu s postopki, določenimi v tem standardu.
V posebnih okoliščinah, kadar so opredeljene v nacionalnih gradbenih predpisih, lahko obstaja potreba, da se reaktivni material za zaščito podvrže krivulji tlenja. Preskus za to in posebne okoliščine za njegovo uporabo so podrobno opredeljeni v dodatku A.
Metodologija preskusa požarne varnosti vključuje zbiranje in predstavitev podatkov, ki se lahko neposredno vnesejo v izračun požarne odpornosti kompozitnih elementov iz betona in jeklene profilirane pločevine v skladu s postopki, navedenimi v standardu EN 1994-1-2.
Ta evropski standard prav tako vsebuje presojo, ki predpisuje način analiziranja podatkov preskusa, in navodila o postopkih, ki se nanašajo na interpolacijo.
Določijo se omejitve uporabnosti rezultatov presoje na podlagi požarnega preskusa skupaj z dovoljeno neposredno uporabo rezultatov za kompozitne strukture iz betona in jeklene profilirane pločevine, vrste in debelino jekla, gostote betona, moči, debeline in proizvodne tehnike pri različnih debelinah uporabljenega preskušenega sistema protipožarnega varstva.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RQVWUXNFLMVNLKSORþHYLQHPrüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 5: Brandschutzmaßnahmen für profilierte Stahlblech/Beton-VerbundkonstruktionenMéthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 5: Protection appliquée aux dalles mixtes béton/tôle d'acier profiléeTest methods for determining the contribution to the fire resistance of structural members - Part 5:
Applied protection to concrete/profiled sheet steel composite member91.080.01Gradbene konstrukcije na splošnoStructures of buildings in general13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 13381-5:2014SIST EN 13381-5:2014en,fr,de01-december-2014SIST EN 13381-5:2014SLOVENSKI
STANDARDSIST ENV 13381-5:20031DGRPHãþD
SIST EN 13381-5:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13381-5
November 2014 ICS 13.220.50; 91.080.01 Supersedes ENV 13381-5:2002English Version
Test methods for determining the contribution to the fire resistance of structural members - Part 5:
Applied protection to concrete/profiled sheet steel composite member
Méthodes d'essai pour déterminer la contribution à la résistance au feu des éléments de construction - Partie 5 : Protection appliquée aux dalles mixtes béton/tôle d'acier profilée
Prüfverfahren zur Bestimmung des Beitrages zum Feuerwiderstand von tragenden Bauteilen - Teil 5: Brandschutzmaßnahmen für profilierte Stahlblech/Beton-Verbundkonstruktionen This European Standard was approved by CEN on 13 September 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 13381-5:2014 ESIST EN 13381-5:2014
EN 13381-5:2014 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Terms and definitions, symbols and units .6 3.1 Terms and definitions .6 3.2 Symbols and units .8 4 Test equipment .9 4.1 General .9 4.2 Furnace .9 4.3 Loading equipment .9 5 Test conditions .9 5.1 General .9 5.2 Support and restraint conditions . 10 5.3 Loading conditions . 10 6 Test specimens . 10 6.1 Number of test specimens . 10 6.2 Size of test specimens . 11 6.3 Construction of test specimens . 11 6.4 Composition of test specimen component materials . 13 6.5 Properties of test materials . 14 6.6 Verification of the test specimen . 15 7 Installation of the test construction . 15 8 Conditioning of the test construction. 15 9 Application of instrumentation . 16 9.1 General . 16 9.2 Instrumentation for measurement of furnace temperature . 16 9.3 Instrumentation for measurement of test specimen temperature . 16 9.4 Instrumentation for measurement of pressure . 17 9.5 Instrumentation for measurement of deformation . 17 9.6 Instrumentation for measurement of applied load . 17 10 Test procedure . 17 10.1 General . 17 10.2 Furnace temperature and pressure . 17 10.3 Application and control of load . 17 10.4 Temperature of test specimen . 17 10.5 Deformation . 18 10.6 Observations . 18 10.7 Termination of test. 18 11 Test results . 18 11.1 Acceptability of test results . 18 11.2 Presentation of test results . 19 12 Test report . 19 13 Assessment . 20 SIST EN 13381-5:2014
EN 13381-5:2014 (E) 3 13.1 General . 20 13.2 Profiled steel sheet temperature . 21 13.3 Equivalent thickness of concrete . 21 13.4 Limiting exposure time . 22 13.5 Insulation . 22 14 Report of the assessment . 22 15 Limits of applicability of the results of the assessment . 23 16 Additional limits of applicability of the results of the assessment for suspended ceilings used as protection system . 25 16.1 Height of the cavity . 25 16.2 Exposed width of test specimen . 25 16.3 Properties of the horizontal protective membrane . 25 16.4 Size of panels within the horizontal protective membrane . 25 16.5 Fixtures and fittings . 25 16.6 Gaps between grid members and test frame or walls . 25 Annex A (normative)
Test method to the smouldering fire or slow heating curve . 32 A.1 General . 32 A.2 Test conditions . 32 A.3 Termination of the test . 32 A.4 Evaluation of the results . 33 Annex B (normative)
Measurement of properties of fire protection materials . 35 B.1 General . 35 B.2 Thickness of fire protection materials . 35 B.3 Density of applied fire protection materials . 36 B.4 Moisture content of applied fire protection materials . 36 Bibliography . 38
SIST EN 13381-5:2014
EN 13381-5:2014 (E) 4 Foreword This document (EN 13381-5:2014) 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 May 2015 and conflicting national standards shall be withdrawn at the latest by May 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 13381-5:2002. In comparison with the previous edition, the entire document has been revised. 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 this standard are: — Part 1: Horizontal protective membranes; — Part 2: Vertical protective membranes; — Part 3: Applied protection to concrete members; — Part 4: Applied passive protection products to steel 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. 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 will be made and safety precautions will be identified and provided. Written safety instructions will be issued. Appropriate training will be given to relevant personnel. Laboratory personnel will ensure that they follow written safety instructions at all times. The specific health and safety instructions contained within this standard will be followed. 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. SIST EN 13381-5:2014
EN 13381-5:2014 (E) 5 1 Scope This European Standard specifies a test method for determining the contribution of fire protection systems to the fire resistance of structural concrete/profiled sheet steel composite members or slabs. The concrete can be lightweight, normal-weight or heavy-weight concrete and of strength classes 20/25 (LC/C/HC) to 50/60 (LC/C/HC). The test method and its assessment procedure are designed to permit direct application of the results to cover a range of thicknesses of the applied fire protection material. The test method is applicable to all fire protection materials used for the protection of concrete/steel composite members or slab and includes sprayed materials, coatings, cladding protection systems and multi-layer or composite fire protection materials, with or without a cavity between the fire protection material and the concrete/steel composite members or slab. This European Standard contains the fire test which specifies the tests which will be carried out to determine the ability of the fire protection system to remain coherent and fixed to the composite member and to provide data on the temperatures of the steel sheet, throughout the depth of the concrete (for extended application purposes) and the unexposed surface of the concrete, 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 concrete/steel composite members in accordance with the procedures given in EN 1994-1-2. This European Standard also contains the assessment which prescribes how the analysis of the test data needs to be made and gives guidance to the procedures by which interpolation needs to 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 steel/concrete composite structures, steel types and thicknesses, concrete densities, strengths, thicknesses and production techniques over the range of thicknesses of the applied fire protection system tested. 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 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 SIST EN 13381-5:2014
EN 13381-5:2014 (E) 6 EN 1994-1-2, Eurocode 4 - Design of composite steel and concrete structures - Part 1-2: General rules - Structural fire design EN 10346, Continuously hot-dip coated steel flat products - Technical delivery conditions EN 12467, Fibre-cement flat sheets - Product specification and test methods EN ISO 3251, Paints, varnishes and plastics - Determination of non-volatile-matter content (ISO 3251) EN ISO 13943, Fire safety - Vocabulary (ISO 13943) ISO 8421-2, Fire protection - Vocabulary - Part 2: Structural fire protection 3 Terms and definitions, symbols and units 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1363-1, EN ISO 13943, ISO 8421-2, EN 206 and the following apply. 3.1.1 concrete/steel composite member or slab (generally referred to as slab) element of building construction which is loadbearing and is fabricated from a profiled steel sheet lower surface and a concrete upper layer, which may contain steel reinforcing bars Note 1 to entry: Profiled steel sheet is specified in EN 10346 and concrete according to EN 206. 3.1.2 fire protection material material or combination of materials applied directly or by means of fixing system to the surface of a concrete/steel composite slab for the purpose of increasing its fire resistance 3.1.3 passive fire protection materials materials which do not change their physical form on heating, providing fire protection by virtue of their physical or thermal properties and which may include materials containing water which, on heating, evaporates 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 provides 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 the structural concrete/steel composite slab 3.1.6 fire protection protection afforded to the concrete/steel composite slab by the fire protection system such that the temperature throughout the depth of the structural slab and upon any steel reinforcing bars within it is limited throughout the period of exposure to fire SIST EN 13381-5:2014
EN 13381-5:2014 (E) 7 3.1.7 test specimen concrete/steel composite test slab plus the fire protection system under test 3.1.8 fire protection thickness thickness of a single layer fire protection material or combined thickness of all layers of a multilayer fire protection material 3.1.9 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 3.1.10 equivalent thickness of concrete theoretical thickness of concrete which provides the same thermal insulation for a given period of test as does the given thickness of the applied fire protection system 3.1.11 limiting exposure time time at which the adherence of a fire protection system to the concrete/steel composite test slab can be no longer considered acceptable, as indicated by a defined, significant increase in maximum recorded temperature at any point on the steel surface 3.1.12 limiting temperature maximum value of temperature reached on the lower surface of the ribs of the profiled steel sheet when the limiting exposure time is reached 3.1.13 profiled fire protection system material which is applied following the shape of the profiled steel sheet of the slab and directly in contact with the steel sheet 3.1.14 suspended fire protection system system which is not directly in contact with parts of the slab 3.1.15 boxed fire protection system system which is directly in contact with parts of the slab 3.1.16 characteristic temperature average of the mean temperature and the maximum individual temperature [(mean + maximum)/2] for a thermocouple group or location SIST EN 13381-5:2014
EN 13381-5:2014 (E) 8 3.2 Symbols and units For the purposes of this document, the following symbols and units apply. Symbol Unit Designation Lexp mm length of the test specimen exposed to the furnace Lsup mm centre to centre distance between the supports of the test specimen Lspec mm total length of the test specimen Wexp mm width of test specimen exposed to the furnace h1 mm thickness of concrete above the steel ribs h2 mm thickness of concrete within the steel profile h mm thickness of concrete in concrete/steel composite test specimen thickness h = h1 + h2 lp mm length of the components of the trapezoidal or re-entrant profile of the steel sheet (lp1, lp2 and lp3) P kN loading applied to concrete/steel composite test specimen
°C characteristic temperature m,l (m,u) °C limiting temperature at the lower respectively upper part of the steel profile heff mm the effective thickness of the concrete/steel composite test slab he mm the equivalent effective thickness of the concrete/steel composite test slab heq mm the equivalent thickness of concrete corresponding to the particular thickness of the fire protection system tested tr min the time at which an increase of the characteristic temperature of all thermocouples on the unexposed concrete surface of 140 180
fy N/mm2 yield strength of steel dp mm thickness of fire protection material SIST EN 13381-5:2014
EN 13381-5:2014 (E) 9 4 Test equipment 4.1 General The furnace and test equipment shall be as specified in EN 1363-1. 4.2 Furnace The furnace shall be designed to permit the dimensions of the test specimen to be exposed to heating to be as specified in 6.2 and its installation to be as specified in Clause 7. 4.3 Loading equipment Loading equipment shall conform to that specified in EN 1363-1. The loading system shall permit loading, of the magnitude defined in 5.3, to be applied along the length and width of the test specimen. The loading equipment shall not inhibit the free movement of air above the test specimen and no part of the loading equipment, other than at the loading points, shall be closer than 60 mm to the unexposed surface of the test specimen. 5 Test conditions 5.1 General Test specimens, subjected to predefined loading, are heated upon a furnace under specified temperature/time conditions, in horizontal orientation, with fire exposure applied from below. Tests are carried out on a loaded large size test slab and an unloaded small size test slab to provide information on: — the temperature of the profiled steel sheet behind the fire protection system; — the behaviour of the fire protection system and its stickability; — the temperature of the unexposed side of the test specimen; — the temperature throughout the concrete (optional for extended application purposes). It is recommended that the test be continued until the temperature of the exposed profiled steel surface reaches a mean value of at least 400 °C, (or any single maximum value of 500 °C is recorded), to give the necessary information on the stickability of the fire protection system. These temperatures may be modified if requested by the sponsor. If the recommended termination temperatures are not reached after 6 h test duration the test shall normally be terminated. The procedures given in EN 1363-1 and EN 1363-2 (if relevant) shall be followed in the performance of this test method unless specific contrary instruction is given. SIST EN 13381-5:2014
EN 13381-5:2014 (E) 10 5.2 Support and restraint conditions 5.2.1 Standard conditions The concrete/steel composite slab test specimens shall be tested as a simply supported one way structure with two free edges and an exposed surface and span as specified in 6.3. The concrete/steel composite slab test specimens shall be installed onto the furnace to allow freedom for longitudinal movement and deflection using at one side rolling support(s) and at the other hinge support(s). The surface of the bearings shall be smooth concrete or steel plates. The width of the bearings shall be the minimum representative of practice. 5.2.2 Other support and restraint conditions If the support and restraint conditions differ from the standard conditions specified in 5.2.1, these conditions shall be described in the test report and the validity of the test results will be restricted to those tested. For example the concrete/steel composite slab can be installed on a steel H or I profile at each end of the furnace and fixed by means of nails shot in each bottom of waves. 5.3 Loading conditions Loading shall be applied to the full size test specimens. The load shall be designed in order to introduce, between the two loading lines, a bending moment equivalent to the maximal allowed load designed by the manufacturer of the profiled steel sheets for the tested concrete thickness and span. The load shall be symmetrically applied to the test specimen along two transverse loading lines, each one at a distance (Lsup/4) from each of the supports. The proportion of the total load applied at each loading position shall be P/2, as specified in Figure 1. Point loads shall be transferred to the test specimen through load distribution beams or plates (see Figure 1a)). The total contact area between these and the concrete surface of the test specimen shall be as specified in EN 1363-1, provided that the load distribution beam or plate chosen has a flexural rigidity large enough to give the required distribution of the load. Load distribution beams, for safety reasons, shall have a height to width ratio of < 1. If the load distribution beams or plates are of steel or other high conductivity material, they shall be insulated from the concrete surface of the test specimen by a suitable thermal insulation material. Unexposed surface thermocouples shall not be closer than 100 mm to any part of the load distribution system as shown in Figure 1a). 6 Test specimens 6.1 Number of test specimens Two full size loaded concrete/steel composite members shall be tested. To one member the minimum thickness of the fire protection system shall be applied and to the other member the maximum thickness. If the fire protection system is only available in a single thickness, then one test on one type of member only shall be carried out at that thickness. SIST EN 13381-5:2014
EN 13381-5:2014 (E) 11 Additional small scale tests (one test per variable) may be carried out to provide further test data for the fire protection system when: — it is to be applied to a co
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.