SIST EN 15254-5:2010
Extended application of results from fire resistance tests - Non-loadbearing walls - Part 5: Metal sandwich panel construction
Extended application of results from fire resistance tests - Non-loadbearing walls - Part 5: Metal sandwich panel construction
This part of EN 15254 defines rules for extended applications, provides guidance, and, where appropriate, defines procedures, for variations of certain parameters and factors associated with the design of internal and external non-loadbearing walls constructed of metal sandwich panels and that have been tested in accordance with EN 1364-1. EN 15254-5 applies for self-supporting, double skin metal faced sandwich panels having an insulating core bonded to both facings as defined in EN 14509.
Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen - Nichttragende Wände - Teil 5: Sandwichelemente in Metallbauweise
Dieser Teil der Normenreihe EN 15254 legt Regeln zum erweiterten Anwendungsbereich fest, bietet Anleitungen
und legt, falls erforderlich, Verfahren für Änderungen von bestimmten Parametern und Faktoren fest, die
mit der Bauweise von nichttragenden Innen- und Außenwänden aus Sandwichelementen (im Folgenden als
Element bezeichnet) in Metallbauweise zusammenhängen und die nach EN 1364-1 geprüft wurden.
EN 15254-5 gilt für selbsttragende Sandwichelemente mit beidseitigen Metalldeckschichten und einem Kern
aus Wärmedämmstoff, der auf beiden Seiten, wie in EN 14509 festgelegt, verklebt ist.
Application étendue des résultats d'essais de résistance au feu - Murs non porteurs - Partie 5 : Panneaux sandwich métalliques pour la construction
La présente partie du EN 15254 définit les règles pour les applications étendues, expose les lignes directrices et, le cas échéant, définit des procédures pour les modifications de certains paramètres et facteurs liés à la conception de murs internes et externes non porteurs en panneaux sandwiches métalliques et qui ont été soumis à essai conformément à l'EN 1364-1.
L’EN 15254-5 s'applique aux panneaux sandwiches autoportants, à deux parements métalliques comportant une âme isolante liée aux deux parements tels que défini dans l'EN 14509.
Razširjena uporaba rezultatov preskusov požarne odpornosti - Nenosilne stene - 5. del: Stene iz kovinskih sendvič panelov
Ta del EN 15254 določa pravila za razširjeno uporabo, zagotavlja vodilo in, kjer je primerno, določa postopke za spreminjanje določenih parametrov in dejavnikov, povezanih z zasnovo notranjih in zunanjih nenosilnih sten, narejenih iz kovinskih sendvič panelov, ki so bile preskušene v skladu z EN 1364-1. EN 15254-5 velja za samonosilne dvoslojne kovinske sendvič panele, ki imajo izolacijsko jedro, povezano z obema stranema, kot je opredeljeno v EN 14509.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen - Nichttragende Wände - Teil 5: Sandwichelemente in MetallbauweiseApplication étendue des résultats d'essais de résistance au feu - Murs non porteurs - Partie 5 : Panneaux sandwich métalliques pour la constructionExtended application of results from fire resistance tests - Non-loadbearing walls - Part 5: Metal sandwich panel construction91.060.10Stene. Predelne stene. FasadeWalls. Partitions. Facades13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 15254-5:2009SIST EN 15254-5:2010en,de01-februar-2010SIST EN 15254-5:2010SLOVENSKI
STANDARD
SIST EN 15254-5:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15254-5
November 2009 ICS 13.220.50; 91.060.10 English Version
Extended application of results from fire resistance tests - Non-loadbearing walls - Part 5: Metal sandwich panel construction
Application étendue des résultats d'essais de résistance au feu - Murs non porteurs - Partie 5 : Panneaux sandwiches métalliques pour la construction
Erweiterter Anwendungsbereich der Ergebnisse von Feuerwiderstandsprüfungen - Nichttragende Wände - Teil 5: Sandwichelemente in Metallbauweise This European Standard was approved by CEN on 5 October 2009.
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 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 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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15254-5:2009: ESIST EN 15254-5:2010
EN 15254-5:2009 (E) 2 Contents Page Foreword . 31 Scope. 42 Normative references . 43 Terms and definitions, symbols and abbreviations . 43.1 Terms and definitions . 43.2 Symbols and abbreviations . 54 Establishing the field of extended application . 64.1 General . 64.2 Assumptions in the extended application . 64.3 Assumed structural behaviour of a sandwich panel in fire . 75 Rules for extended applications of the tested product . 75.1 General . 75.2 Variations in the materials of the product . 95.2.1 General . 95.2.2 Variations in the metal sheets . 105.2.3 Variations in the adhesive . 115.2.4 Variations in the core material . 115.3 Variations in the construction . 125.3.1 Variations in span length . 125.3.2 Variations in the panel thickness . 135.3.3 Variations in the joint construction . 135.3.4 Variations in the boundary conditions and fixing system . 135.3.5 Length and height of wall construction . 135.4 Interaction between the factor influences . 135.5 Support structure . 145.6 Heating conditions . 146 Small scale tests and calculation methods . 146.1 Small scale tests . 146.2 Calculation methods . 146.2.1 General . 146.2.2 Calculation of strength properties . 146.3 Additional measurements to be carried out in the reference test . 157 Report of the extended application analysis . 15Annex A (informative)
Typical behaviour of a metal faced sandwich panel wall when exposed to fire . 16Annex B (normative)
Evaluation of extension of span length . 17Bibliography . 20 SIST EN 15254-5:2010
EN 15254-5:2009 (E) 3 Foreword This document (EN 15254-5:2009) 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 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. 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 has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). This standard is currently composed of the following parts: EN 15254-2, Extended application of results from fire resistance tests — Non-loadbearing walls — Part 2: Masonry and Gypsum Blocks EN 15254-4, Extended application of results from fire resistance tests — Non-loadbearing walls — Part 4: Glazed constructions EN 15254-5, Extended application of results from fire resistance tests — Non-loadbearing walls — Part 5: Metal sandwich panel construction prEN 15254-7, Extended application of results from fire resistance tests — Non-loadbearing walls — Part 7: Non-load bearing sandwich panels — Ceilings 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, 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 the United Kingdom. SIST EN 15254-5:2010
EN 15254-5:2009 (E) 4 1 Scope This part of EN 15254 defines rules for extended applications, provides guidance, and, where appropriate, defines procedures, for variations of certain parameters and factors associated with the design of internal and external non-loadbearing walls constructed of metal sandwich panels and that have been tested in accordance with EN 1364-1. EN 15254-5 applies for self-supporting, double skin metal faced sandwich panels having an insulating core bonded to both facings as defined in EN 14509. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1363-1:1999, Fire resistance tests — Part 1: General requirements EN 1364-1:1999, Fire resistance tests for non-loadbearing elements — Part 1: Walls EN 13501-2, Fire classification of construction products and building elements — Part 2: Classification using data from fire resistance tests, excluding ventilation services EN 14509, Self-supporting double skin metal faced insulating panels — Factory made products — Specifications EN 1993-1-2, Eurocode 3: Design of steel structures — Part 1-2: General rules — Structural fire design 3 Terms and definitions, symbols and abbreviations 3.1 Terms and definitions For the purposes of this document the terms and definitions given in EN 14509:2006, EN 1364-1:1999 and EN 1363-1:1999 together with the following apply.
3.1.1 direct field of application of test results outcome of a process (involving the application of defined rules) whereby a test result is deemed to be equally valid for variations in one or more of the product properties and/or intended end-use applications 3.1.2 extended field of application of test results outcome of a process (involving the application of defined rules that may incorporate calculation procedures) that predicts, for a variation of a product property and/or its intended end-use application(s), a test result on the basis of one or more test results to the same test standard 3.1.3 factor one of the possible variations that may be applied to a parameter 3.1.4 factor influence one of the potential causes of a change in the fire resistance due to a factor SIST EN 15254-5:2010
EN 15254-5:2009 (E) 5 3.1.5 fastening
fixing device that fastens the panels to a support structure or to the test frame 3.1.6 fixing system system consisting of fastenings and possible other means to fasten the panels to a support structure or to the test frame 3.1.7 height of assembly for horizontally or vertically installed wall panels the height of the wall in the reference test or in the end-use application 3.1.8 length of assembly for horizontally or vertically installed wall panels the length of the wall in the reference test or in the end-use application 3.1.9 reference test fire resistance test in accordance with EN 1363-1 and EN 1364-1, and where applicable EN 1363-2, on which the extended application is based and the results of which are used as the main source of data for the extended application 3.1.10 stiching device for fixing panels to panels in the longitudinal joint 3.1.11 span length centre to centre distance between the supports of a panel and/or intermediate supports to which the sandwich panel is fixed 3.1.12 support structure construction onto which the panel wall is fastened in the end-use application 3.1.13 test frame frame containing the test construction for the purpose of mounting onto the furnace 3.2 Symbols and abbreviations For the purposes of this document, the following symbols and abbreviations apply. Ft,Ed
the tensile load on the fasteners
Fv,Ed
the shear load on the fasteners Ft,Rd
the design tensile load on the fastener at normal temperature Fv,Rd
the design shear load on the fastener at normal temperature L
span length
L1
distance between midspan of two adjacent panels SIST EN 15254-5:2010
EN 15254-5:2009 (E) 6 L2
overlap of the metal facing at the panel to panel joint b
width of panel c1
opening in adjacent metal sheet joints at normal room temperature on non exposed side c2
opening in adjacent metal sheet joints during the reference test on non exposed side fj
deflection of panel to panel joint in the reference test f1 f2
deflection of two adjacent panels at midspan in the reference test g
panel weight per square meter q
pressure action on the panel in a fire situation ∆c
increase in opening of the metal sheet joint in the reference test ∆f
relative deflection of the joint compared to the adjacent panels in the reference test 4 Establishing the field of extended application 4.1 General An extended application analysis is required when the application differs in one or more parameters from the tested one described in the test report and/or in the classification document, and which is not covered by the field of direct application of the classification document. The extended application of the wall shall be based on the reference fire test results performed according to EN 1364-1 and may be complemented by one or more additional small or full scale tests or by historical data. If historical data are used they shall comply with the rules given in this document. 4.2 Assumptions in the extended application The following assumptions are considered when evaluating extended applications for sandwich panels: The wall is required to possess fire resistance in the end-use condition; relevant classes are given in EN 13501-2; The wall is assumed to be exposed on the entire face of one side to the standardised heating conditions given in the EN 1363-1 fire resistance test specification; The structure above and below the wall does not deflect vertically during the fire exposure period; this simulates the non-deflecting nature of the test frame which forms part of the furnace test apparatus; NOTE In reality constructions deflect and this should be taken into account when designing the building and planning the constructional details so that no vertical loads are applied to the wall. After delamination of the fire-exposed facing the dead load of the panels is carried by a support structure to which the ends of the panels are attached; The support structure has at least the same loadbearing capacity R of the resistance to fire performance as the wall regarding integrity; SIST EN 15254-5:2010
EN 15254-5:2009 (E) 7 The self weight of the facing and core is calculated from the volume and density of the materials; The calculation of the reduction in the strength properties of steel at elevated temperature shall be in accordance with EN 1993-1-2. 4.3 Assumed structural behaviour of a sandwich panel in fire When one face of a sandwich panel assembly is exposed to fire the following behaviour may be expected. The panel initially bows towards the fire and the ends of the panel can move because of expansion of the fire-exposed face. When delamination of the fire-exposed face occurs the flexural strength of the assembly is lost and, unless both faces are restrained at the ends, the panels can collapse. The fastenings for the ends of the fire-exposed face have to support the dead load of that face whereas the fastenings for the ends of the unexposed face have to support the combined dead load of the face and the core for the entire fire resistance period. Combined fixations (e.g. through fixings) for both faces are also possible.
NOTE Annex A illustrates a typical behaviour of panels. 5 Rules for extended applications of the tested product 5.1 General When performing extended applications for a tested wall changes can occur either in the materials and/or in the construction. Both are dealt with in this standard. Table 1 and Table 2 list the changes which may or may not be made in an extended application assessment. The rules for the changes are given in 5.2 and 5.3. SIST EN 15254-5:2010
EN 15254-5:2009 (E) 8 Table 1 — Material changes relevant to extended application Parameter Factors Factor influence on performance Rules Integrity E Insulation I Changes in metal facings Chemical composition of coating influence
no influence a
5.2.2.1
Change from coated to non coated metal no influence influence 5.2.2.1 Sheet thickness influence no influence a Valid up to ± 50 % of tested thickness Change from one metal to another no information no information 5.2.2.2 Change in sheet geometry no information no information 5.2.2.3 Changes in adhesive Amount
influence influence 5.2.3 Type influence
no influence a 5.2.3 Changes in core material Type major influence major influence 5.2.4 Change in composition.
major influence
major influence
5.2.4.2 - 5.2.4.6 a It is understood that when a change in a factor can influence the integrity of a joint, there is a possibility that a change in leakage of hot gases or in joint geometry can also influence the temperature rise near the joint and therefore influence the insulation rating.
SIST EN 15254-5:2010
EN 15254-5:2009 (E) 9 Table 2 — Constructional changes relevant to extended application Parameter Factors Factor influence on performance Rules Integrity E Insulation I Span length Decrease no influence no influence a
Always valid Increase influence
no influence a 5.3.1 Orientation
influence no influence a Valid for both horizontal and vertical joints between panels but see also Annex B of this standard Panel width Decrease no influence no influence a Test results valid Increase influence
no influence a Test results valid up to + 20 % Panel thickness e.g. core thickness
no information
major influence 5.3.2 Joint construction Type major influence
major influence
5.3.3 Stiching decreased influence
influence Not allowed Stiching increased influence
influence 5.3.3 Sealants influence influence 5.3.3 Fixing system Type major influence
no influence a 5.3.4 Amount decreased major influence
no influence a 5.3.4 Amount increased influence
no influence a Valid Protection decreased major influence
influence
5.3.4 Protection increased influence
influence
Valid Length of assembly Vertical installation no influence no influence a 5.3.5 Horizontal installation
See span length 5.3.1 Height of assembly Vertical installation
See span length 5.3.1 Horizontal installation no influence no influence a 5.3.5 Support structure Changes no information no influence a 5.5 a It is understood that when a change in a factor can influence the integrity of a joint, there is a possibility that a change in leakage of hot gases or in joint geometry can also influence the temperature rise near the joint and therefore influence the insulation rating.
5.2 Variations in the materials of the product 5.2.1 General Sandwich panels consist of three main materials (facing metal sheets, adhesive and core material). In the case of autoadhesively bonded panels the foamed core material also form the adhesive layer during the foaming process.
SIST EN 15254-5:2010
EN 15254-5:2009 (E) 10 Changes in the properties of the metal sheets will not affect the fire resistance results significantly and changes can therefore be allowed. On the other hand even small changes in the core material can result in big variations in the fire resistance test results. These facts are taken into account in the following rules. 5.2.2 Variations in the metal sheets 5.2.2.1 Variations in the coatings The most essential property of the coating regarding fire resistance is the emissivity on the non-exposed side. Normally the emissivity for a coated steel sheet is between 0,8 and 0,95. A change in emissivity of - 10 % for a new coating compared to the tested one is thus allowed if there is at least a 10 % margin in the insulation test result compared to the I-classification. Test results are always valid for coatings with higher emissivity values compared to the tested one. When a change in coating is made the manufacturer of the coated sheet shall provide emissivity properties for the products. A non-coated metal sheet can have an emissivity as low as 0,1. A change from a coated to a non-coated sheet is therefore not allowed. The same rule as for coatings above applies also in this case. A change in emissivity of - 10 % is allowed if the emissivities for the different sheets are known. For changes in emissivity > 10 % surface temperatures can be estimated from small-scale tests in accordance with 6.1 where the surface temperatures of the new panel is compared to the one tested
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