Norm

NEN-EN 13381-4:2009 Ontw. en

Beproevingsmethoden voor de bepaling van de bijdrage aan brandwerendheid van draagconstructieonderdelen - Deel 4: Passieve bescherming aangebracht op stalen constructiedelen

  • Deze norm is ingetrokken sinds 26-04-2012

46,90

Over deze norm

Status Ingetrokken
Aantal pagina's 88
Commissie Brandveiligheidsaspecten bouwproducten en bouwdelen
Gepubliceerd op 01-01-2009
Taal Engels
This part of this European Standard specifies a test method for determining the contribution made by applied fire protection systems to the fire resistance of structural steel members, which can be used as beams, columns or tension members. The evaluation is designed to cover a range of thicknesses of the applied fire protection material, a range of steel sections, characterized by their section factors, a range of design temperatures and a range of valid fire protection classification periods. This European Standard applies to fire protection materials where the gap between the material and the flange faces of the steel member is less than 5 mm in size. Otherwise, the test methods in EN 13381-1 or EN 13381-2, as appropriate, apply. 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 steelwork, and to provide data on the thermal characteristics of the fire protection system, when exposed to the standard temperature/time curve specified in EN 1363-1. 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 described 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 steel structural members in accordance with the procedures given in EN 1993-1-2. This European Standard also contains the assessment which prescribes how the analysis of the test data shall be made and gives guidance on the procedures by which interpolation shall be undertaken. The assessment procedure is used to establish: a) on the basis of temperature data derived from testing loaded and unloaded sections, a correction factor and any practical constraints on the use of the fire protection system under fire test conditions, (the physical performance); b) on the basis of the temperature data derived from testing short steel column sections, the thermal properties of the fire protection system, (the thermal performance). 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 sections and grades and to different fire protection systems and fixings. The results of the test and assessment obtained according to this part of EN 13381 are directly applicable to steel sections of "I" and "H" cross sectional shape. Guidance is given in annex B on the application of the data obtained from "I" and "H" steel sections to other section shapes.

Details

ICS-code 13.220.50
91.080.10
Nederlandse titel Beproevingsmethoden voor de bepaling van de bijdrage aan brandwerendheid van draagconstructieonderdelen - Deel 4: Passieve bescherming aangebracht op stalen constructiedelen
Engelse titel Test methods for determining the contribution to the fire resistance of structural members - Part 4: Applied passive protection products to steel members
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