EN 15080-8:2009
(Main)Extended application of results from fire resistance tests - Part 8: Beams
Extended application of results from fire resistance tests - Part 8: Beams
This Part of EN 15080 identifies the parameters and factors that affect the fire resistance of beams and need to be taken into account when considering extended application of results of beams tested in accordance with EN 1365-3. It also gives the methodology to be used when preparing an extended application, including rules and calculation methods which can be applied to establish the resultant influence of a variation in one or more parameters and to determine the field of extended application.
Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 8: Balken
In diesem Teil der Normenreihe EN 15080 werden die Parameter und Faktoren festgestellt, die die Feuer-widerstandsfähigkeit von Balken beeinflussen und die in Betracht gezogen werden müssen, um den erweiterten Anwendungsbereich auf Basis der Prüfergebnisse von Balken nach EN 1365 3:1999 ermitteln zu können. Dieser Teil beinhaltet auch die anzuwendende Methodologie, wenn ein erweiterter Anwendungs-bereich vorbereitet wird, einschließlich der Regeln und Berechnungsverfahren, die angewandt werden können, um die aufgrund von Änderungen in einem oder mehreren Parameter(n) resultierenden Einflüsse zu ermitteln und den erweiterten Anwendungsbereich zu bestimmen.
Application étendue des résultats des essais de résistance au feu - Partie 8 : Poutres
La présente partie de l’EN 15080 identifie les paramètres et facteurs qui affectent la résistance au feu des poutres et qui doivent être pris en compte si l’on considère l’application étendue des résultats des poutres soumises à un essai conformément à l’EN 1365-3. Elle fournit également la méthodologie à utiliser lors de l’élaboration d’une application étendue, notamment les règles et les méthodes de calcul qui peuvent être appliquées pour établit l’influence résultant d’une variation dans un ou plusieurs paramètres mais aussi pour déterminer le champ de l’application étendue.
Razširjena uporaba rezultatov preskusov požarne odpornosti - 8. del: Nosilci
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Razširjena uporaba rezultatov preskusov požarne odpornosti - 8. del: NosilciErweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 8: BalkenApplication étendue des résultats des essais de résistance au feu - Partie 8 : PoutresExtended application of results from fire resistance tests - Part 8: Beams91.060.99Drugi stavbni elementiOther elements of buildings13.220.50Požarna odpornost gradbenih materialov in elementovFire-resistance of building materials and elementsICS:Ta slovenski standard je istoveten z:EN 15080-8:2009SIST EN 15080-8:2009en,de01-december-2009SIST EN 15080-8:2009SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15080-8
October 2009 ICS 13.220.50; 91.060.99 English Version
Extended application of results from fire resistance tests - Part 8: Beams
Application étendue des résultats des essais de résistance au feu - Partie 8 : Poutres
Erweiterter Anwendungsbereich der Ergebnisse aus Feuerwiderstandsprüfungen - Teil 8: Balken This European Standard was approved by CEN on 10 February 2008.
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.
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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 15080-8:2009: ESIST EN 15080-8:2009
Guidelines for making assessments . 15 A.1 Mode of failure . 15 A.1.1 General . 15 A.1.2 Failure of protection system . 15 A.1.3 Change of structural mode of failure from bending to shear . 15 A.1.4 Change of structure mode of failure from bending to connection failure . 16 A.2 Effect of material strength . 16 A.3 Extrapolation of fire resistance . 17 A.4 Accuracy of predictions . 17 A.5 Prediction based on material laws . 18 A.6 Modifying predicted temperatures . 18 A.7 Deflection limits . 19 Annex B (informative)
The Extended Application Of Steel Beams . 20 B.1 Introduction . 20 B.2 Analysis of reference tests . 20 B.2.1 Thermal performance . 20 B.2.2 Mechanical performance . 21 B.2.3 Other features . 22 B.3 Model for extended application . 22 SIST EN 15080-8:2009
The Extended Application Of Timber Beams . 24 C.1 Introduction . 24 C.2 Extended application in the load domain (increase of load-bearing capacity) . 24 C.2.1 Increasing of load-bearing capacity by higher strength class . 24 C.2.2 Increasing of load-bearing capacity by increasing beam dimensions (braced beams) 25 C.2.3 Increasing of load-bearing capacity by decreasing the fire resistance . 26 C.3 Extended application in the time domain: Increasing fire resistance by applied fire protection . 30 Annex D (informative)
The Extended Application of a Composite Steel Concrete Beam . 32 D.1 Introduction . 32 D.1.1 General . 32 D.1.2 Reference test 1 . 33 D.1.3 Reference test 2 . 33 D.2 Analysis of reference tests . 34 D.2.1 Thermal performance . 34 D.2.2 Reference test 1 . 34 D.2.3 Reference test 2 . 35 D.2.4 Structural performance . 36 D.2.5 Bending resistance . 36 D.2.6 Assessment of reference test 1 . 36 D.2.7 Assessment of reference test 2 . 37 D.2.8 Conclusions of structural performance . 38 D.2.9 Model for extended application . 38 D.2.10 Extended application . 38 Annex E (informative)
The extended application of concrete beams . 41 E.1 Introduction . 41 E.2 Failure modes . 41 E.3 Examples . 41 E.3.1 Possible change of failure mode . 41 E.3.2 Change of cross section . 42 E.3.3 Change of material strength . 42 E.3.4 Axial and rotational restraint . 43 Bibliography . 44
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