DANSK DSF/ISO/FDIS 834-13 PDF

This Standard specifies a test and assessment method for determining the contribution made by fire protection systems to the fire resistance of structural steel beams, I and H sections, in the horizontal plane containing openings in the web which may affect the structural performance of the beam. It is applicable to beams subjected to 3 or 4 sided fire exposure. For any cellular beam with a single web opening or where the web openings are considered to be of small diameter in relation to the web depth the applicability of this Standard shall be determined by a structural engineer The Standard applies to fire protection materials that have already been tested and assessed in accordance with ISO 834-10 and ISO 834-11 and cannot be used in isolation. It covers fire protection systems that include both passive and reactive materials which follow the section profile as defined in this document. Use of ISO 834-13 requires the multi-temperature analysis (MTA) derived from ISO 834-11 as the basis for determining the thickness of fire protection for beams with web openings. The MTA shall be carried out on the web and bottom flange separately generating an elemental multi-temperature analysis (EMTA). The bottom flange EMTA may be used as the top flange EMTA when a beam is subject to 4 sided exposure. The standard contains the fire test methodology, which specifies the tests that shall be carried out to provide data on the thermal characteristics of the fire protection system when exposed to the standard temperature/time curve specified in ISO 834-1. It also contains the assessment, which prescribes how the analysis of the test data should be made and gives guidance on the procedures that should be undertaken.