Extended application of results from fire resistance tests - Part 12: Loadbearing masonry walls

This European Standard provides guidance, and where appropriate defines procedures, for variations of certain parameters and factors associated with the design of internal and external loadbearing walls that have been tested in accordance with EN 1365-1.
Data from historic standard fire resistance tests may be used as supporting information.
Manufactured stone masonry units according to EN 771-5 and natural stone units according to EN 771-6 are not covered.
This European Standard is not valid for reinforced masonry.

Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 12: Tragende Mauerwerkswände

Diese Europäische Norm gibt eine Anleitung und definiert, falls zutreffend, Verfahren für Änderungen von bestimmten Parametern und Faktoren, die mit der Bemessung von tragenden Innen- und Außenwänden im Zusammenhang stehen und nach EN 1365-1 geprüft wurden.
Daten aus bereits vorliegenden Feuerwiderstandsprüfungen dürfen als unterstützende Informationen verwendet werden.
Mauersteine, die nach EN 771 5 aus Beton und nach EN 771 6 aus Naturstein gefertigt wurden, sind nicht abgedeckt.
Diese Europäische Norm gilt nicht für bewehrtes Mauerwerk.

Application étendue des résultats des essais de résistance au feu - Partie 12: Murs porteurs en maçonnerie

La présente Norme européenne fournit des lignes directrices et, le cas échéant, définit des modes opératoires, pour les variations de certains paramètres et facteurs associés à la conception de murs porteurs intérieurs et extérieurs qui ont été soumis à des essais conformément à l'EN 1365-1.
Les données issues d'essais de résistance au feu historiques peuvent être utilisées comme des informations complémentaires.
Les éléments de maçonnerie en pierre reconstituée en béton conformément à l'EN 771-5 et les éléments de maçonnerie en pierre naturelle conformément à l'EN 771-6 ne sont pas couverts.
La présente Norme européenne ne s'applique pas à la maçonnerie armée.

Razširjena uporaba rezultatov požarne odpornosti - 12. del: Nosilni zidovi

Ta evropski standard zagotavlja vodilo in po potrebi opredeljuje postopke za spremembe nekaterih parametrov in dejavnikov, povezanih s projektiranjem notranjih in zunanjih nosilnih zidov, preskušenih v skladu z EN 1365-1.
Kot podporne informacije se lahko uporabijo podatki starih standardnih preskusov požarne odpornosti.
Zidarski proizvodi iz izdelanega kamna v skladu z EN 771-5 in proizvodi iz naravnega kamna v skladu z EN 771-6 niso zajeti.
Ta evropski standard ne velja za armirano zidovje.

General Information

Status
Published
Publication Date
25-Jan-2011
Current Stage
9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
Due Date
15-Apr-2016
Completion Date
08-Nov-2016

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Razširjena uporaba rezultatov požarne odpornosti - 12. del: Nosilni zidoviErweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 12: Tragende MauerwerkswändeApplication étendue des résultats des essais de résistance au feu - Partie 12: Murs porteurs en maçonnerieExtended application of results from fire resistance tests - Part 12: Loadbearing masonry walls91.060.10Stene. 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 15080-12:2011SIST EN 15080-12:2011en,fr,de01-maj-2011SIST EN 15080-12:2011SLOVENSKI

STANDARD
SIST EN 15080-12:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15080-12
January 2011 ICS 13.220.50; 91.060.10 English Version

Extended application of results from fire resistance tests - Part 12: Loadbearing masonry walls

Application étendue des résultats des essais de résistance au feu - Partie 12: Murs porteurs en maçonnerie

Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 12: Tragende Mauerwerkswände This European Standard was approved by CEN on 11 December 2010.

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, 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 © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 15080-12:2011: ESIST EN 15080-12:2011

EN 15080-12:2011 (E) 2 Contents Page Foreword ..............................................................................................................................................................31 Scope ......................................................................................................................................................42 Normative references ............................................................................................................................43 Terms and definitions ...........................................................................................................................54 General principles..................................................................................................................................54.1 General ....................................................................................................................................................54.2 Classifications ........................................................................................................................................64.3 Necessary additional information ........................................................................................................65 Rules for extended application ............................................................................................................75.1 Units ........................................................................................................................................................75.2 Masonry mortars and joints ..................................................................................................................95.3 Plaster, rendering or external covering ...............................................................................................95.4 Load Level ........................................................................................................................................... 105.5 Geometrical parameters ..................................................................................................................... 106 Report of the extended application analysis ................................................................................... 10Annex A (informative)

Examples of extended applications for loadbearing masonry walls.................... 12A.1 Basis for the Definition: Test report according to EN 1365-1 (add photo) ................................... 12A.2 Material Properties from Report: ....................................................................................................... 12A.2.1 Units ..................................................................................................................................................... 12A.2.2 Mortar ................................................................................................................................................... 12A.2.3 Plaster or rendering ............................................................................................................................ 12A.3 Load ..................................................................................................................................................... 12A.3.1 Centric application of the load .............................................................................................................. 12A.4 Test results: ......................................................................................................................................... 13A.5 Possible applications according to EN 15080-12 ............................................................................ 13A.5.1 Units ..................................................................................................................................................... 13A.5.2 Masonry mortar:.................................................................................................................................. 14A.5.3 Plaster or rendering ............................................................................................................................ 14A.5.4 Load level ............................................................................................................................................ 14A.5.5 Geometrical parameters ..................................................................................................................... 14Annex B (informative)

Recommendations for the installation .................................................................... 15B.1 Connection systems for REI walls .................................................................................................... 15B.2 Recesses and chases ......................................................................................................................... 15Bibliography ..................................................................................................................................................... 16 SIST EN 15080-12:2011

EN 15080-12:2011 (E) 3 Foreword This document (EN 15080-12:2011) 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 July 2011, and conflicting national standards shall be withdrawn at the latest by July 2011. 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 89/106/EEC. 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

SIST EN 15080-12:2011

EN 15080-12:2011 (E) 4 1 Scope This European Standard provides guidance, and where appropriate defines procedures, for variations of certain parameters and factors associated with the design of internal and external loadbearing walls that have been tested in accordance with EN 1365-1. Data from historic standard fire resistance tests may be used as supporting information. Manufactured stone masonry units according to EN 771-5 and natural stone units according to EN 771-6 are not covered. This European Standard is not valid for reinforced masonry. 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 771-1, Specification for masonry units — Part 1: Clay masonry units EN 771-3, Specification for masonry units — Part 3: Aggregate concrete masonry units (Dense and light-weight aggregates)

EN 772-1, Methods of test for masonry units — Part 1: Determination of compressive strength EN 772-16, Methods of test for masonry units – Part 16: Determination of dimensions EN 998-1:2010, Specification for mortar for masonry — Part 1: Rendering and plastering mortar EN 1363-1, Fire resistance tests — Part 1: General requirements EN 1363-2, Fire resistance tests — Part 2: Alternative and additional procedures EN 1365-1, Fire resistance tests for loadbearing elements — Part 1: Walls EN 1996-1-1, Eurocode 6 — Design of masonry structures — Part 1-1: General rules for reinforced and unreinforced masonry structures EN 1996-1-2:2005, Eurocode 6 — Design of masonry structures — Part 1-2: General rules — Structural fire design EN 1996-2, Eurocode 6 — Design of masonry structures — Part 2: Design considerations, selection of materials and execution of masonry EN 1996-3:2006, Eurocode 6 — Design of masonry structures — Part 3: Simplified calculation methods for unreinforced masonry structures EN 13501-2, Fire classification of construction products and buildings elements — Part 2 Classification using data from fire resistance tests, excluding ventilation services SIST EN 15080-12:2011

EN 15080-12:2011 (E) 5 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1996-1-2:2005 and the following apply. 3.1 unit grouping is defined in EN 1996-1-1 3.2 unfilled perpend joint vertical plain joint or joint with tongue and groove, not filled with mortar or adhesive 3.3 utilisation factor relation between the applied load on the test specimen and the design resistance without partial safety factors NOTE For design resistance see EN 1996-1-1 or EN 1996-3. 3.4 historical test data test data generated by fire resistance tests that have been undertaken by a Notified Test Laboratory in accordance with European and/or former and in accordance with standards

NOTE 1 Previously existing test data is acceptable even though the test may not have been carried out using the plate thermometer as long as the necessary additional information, (see 4.3) is available. This data can only be used as described in this European Standard.

NOTE 2 The temperature-time curve used is based on the one specified in EN 1363-1, which is also defined in

ISO 834. 3.5 moisture content of units difference between the density of the units at the beginning of the fire test and the gross dry density of the units, related to the gross dry density of the units, in percent by mass 4 General principles 4.1 General (1) The fire behaviour of load bearing masonry mainly depends on:  the masonry unit material - clay, calcium silicate, autoclaved aerated concrete, dense/lightweight aggregate concrete;  the type of unit - solid or hollow (type of holes, percentage and direction of holes), shell and web thickness;  the unit dimensions;  the unit gross density;  the unit compressive strength;  the type of mortar - general purpose, thin layer or lightweight mortar; SIST EN 15080-12:2011

EN 15080-12:2011 (E) 6  the type of perpend joint – filled or unfilled perpend joint, especially for unplastered walls;  the use of finishes;  the geometrical slenderness of the wall as defined in EN 1996-1-1;  the level of the applied load;  eccentricities;

 fire exposure of separating/non separating elements. (2) For the determination of values by consideration of test results, the interpretation of any existing fire test results has to be based on the requirements for the relevant test method from EN 1363-1, EN 1363-2 and EN 1365-1.

(3) For the evaluation of use of previously existing data, differences between the test methods, have to be considered.

NOTE Differences to be considered are for example material properties, specimen dimensions, utilisation factor based on maximum loading, eccentricities, etc. (4) To establish the extended application, the rules given in Clause 5 shall be followed for each of the given parameters. (5) Extrapolations exceeding the rules of this European Standard are possible, provided that tests give evidence to do so. Such extrapolations have to be specified in the report, see Clause 6. 4.2 Classifications (1) All the given rules are always valid for the same classification. (2) Extrapolation is possible for different wall thicknesses and geometries, different unit densities, compressive strengths, perforation patterns and sizes, different types of masonry mortar, different types of external covering, different load levels and eccentricities. (3) An extrapolation for higher fire resistances or from REI tests to REI-M or R is not possible. NOTE 1 In some cases, there are different extended application rules given for the classifications R, REI and REI-M.

NOTE 2 In addition, the rules given in this European Standard for REI tests also apply for RE and REW tests. 4.3 Necessary additional information For the classification according to these extended application rules additional information on material properties and additional measurements during the test procedure according to EN 1363-1, EN 1365-1 and EN 1363-2 or historic standard fire test methods are necessary:  measurement of the deflection of the test specimen at least in mid height, to allow for an extrapolation for height, see 5.5 (1);  gross density, compressive strength and moisture content of the units;  percentage of voids, web and shell thickness and combined thickness for perforated units;  gross density and compressive strength of the mortar; SIST EN 15080-12:2011

EN 15080-12:2011 (E) 7  thickness of unfilled perpend joints in unplastered or unrendered walls;  thickness and type of plaster or render in rendered walls;  measurement of applied load on the test specimens;

 determination of the utilisation factor. NOTE

The measurement of the temperature within the test specimen at least in mid-height across the wall thickness is advised to allow for a future calculation of fire resistances according to EN 1996-1-2. Thermocouples should be placed at least in depths of 10 mm, 30 mm and 50 mm from the exposed side and then every 50 mm. 5 Rules for extended application 5.1 Units (1) Extrapolations are only possible within the same type of material – e.g. tests on clay unit masonry with units according to EN 771-1 can only be used for extrapolations for clay unit masonry. For lightweight aggregate concrete units according to EN 771-3 extrapolations are only possible within lightweight aggregate concrete units. (2) The test results are valid for the tested type of unit. If solid units, i.e. group 1 units according to EN 1996-1-1 are tested, the results are only valid for group 1 units with the same or a smaller percentage of voids.

(3) For vertically perforated units (group 1, 2 and group 3 according to EN 1996-1-1), the test results can be applied for units wi

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