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Normas BSI – AENOR
BS EN 13381-4:2013

BS EN 13381-4:2013

Test methods for determining the contribution to the fire resistance of structural members. Applied passive protection products to steel members

Fecha:
2013-05-31 /Revision Underway
Comité:
FSH/22/-/12
Equivalencias internacionales:

EN 13381-4:2013

Relación con otras normas BSI:

Reemplaza a: DD ENV 13381-4:2002

Resumen:
This European Standard specifies a test method for determining the contribution made by applied passive fire protection systems to the fire resistance of structural steel members, which can be used as beams or columns. It considers only sections without openings in the web. It is not directly applicable to structural tension members without further evaluation. Results from analysis of I or H -sections are directly applicable to angles, channels and T-sections for the same section factor, whether used as individual elements or as bracing. This European Standard does not apply to solid bar or rod. This European Standard covers fire protection systems that involve only passive materials and not to reactive fire protection materials as defined in this document. The evaluation is designed to cover a range of thicknesses of the applied fire protection material, a range of steel sections, characterised by their section factors, a range of design temperatures and a range of valid fire protection classification periods. This European Standard contains the fire test procedures, which specifies the tests which should be carried out to determine the ability of the fire protection system to remain coherent and attached 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. 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 and 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 on the procedures by which interpolation should 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 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 the fire protection system. The results of the test and assessment obtained according to this European Standard are directly applicable to steel sections of I and H cross sectional shape and hollow sections.
Keywords:
Thermal properties of materials, Performance testing, Beams, Steels, Fire safety in buildings, Construction systems, Fire tests, Construction systems parts, Fire resistance, Structural members, Flame propagation, Surface spread of flame, High-temperature testing, Fire safety, Structural steels, Columns
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