BS DD ENV 13381-5:2002 Test methods for determining the contribution to the fire resistance of structural members. Applied protection to concrete/profiled sheet composite members
This European Prestandard specifies a test method for determining the contribution of fire protection systems to the
fire resistance of structural concrete/profiled sheet steel composite members or slabs. The concrete can be
lightweight, normal-weight or heavy-weight concrete and of strength classes 20/25 (LC/C/HC) to 50/60 (LC/C/HC).
The method is applicable to all fire protection systems used for the protection of such structural composite members
or slabs and includes sprayed fire protection, coatings, cladding protection systems and multi-layer or composite
fire protection materials.
The test method and its assessment procedure are designed to permit direct application of the results to cover a range
of thicknesses of the applied fire protection material.
The test method is only applicable to fire protection systems which are fixed directly to the underside of the
concrete/steel composite member or slab. Fire protection systems where the fire protection material is not attached
directly to the composite member, leading to a continuous cavity between the concrete/steel composite member and
the fire protection system of size greater than 5 mm is the subject of ENV 13381-1.
This European Prestandard 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 composite member and to provide data
on the temperatures of the steel sheet, throughout the depth of the concrete (for extended application purposes) and
the unexposed surface of the concrete, when exposed to the standard temperature/time curve according to the
procedures defined herein.
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 detailed
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 concrete/steel composite members in accordance with the procedures
given in ENV 1994-1-2.
This European Prestandard also contains the assessment which prescribes how the analysis of the test data should
be made and gives guidance to the procedures by which interpolation should be undertaken.
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/concrete composite structures, steel types and
thicknesses, concrete densities, strengths, thicknesses and production techniques over the range of thicknesses of
the applied fire protection system tested.
BS DD ENV 13381-5:2002 history
2014BS EN 13381-5:2014 Test methods for determining the contribution to the fire resistance of structural members. Applied protection to concrete/profiled sheet steel composite member
2002BS DD ENV 13381-5:2002 Test methods for determining the contribution to the fire resistance of structural members. Applied protection to concrete/profiled sheet composite members