标准编号：ISO 834-11:2014
中文名称：防火试验 建筑物构件 第11部分： 结构钢构件用防火材料评估的特定要求
英文名称：Fire resistance tests — Elements of building construction — Part 11: Specific requirements for the assessment of fire protection to structural steel elements
发布日期：2014-03
标准范围
The assessment detailed in this part of ISO 834 is designed to cover a range of thicknesses of the fireprotection material, a range of steel sections characterized by their section factors, a range of designtemperatures, and a range of valid fire resistance classification periods.This part of ISO 834 covers fire protection systems that include both passive (boards, mats, slabs, andspray materials) and reactive materials as defined in this document.The assessment procedure is used to establisha) on the basis of the temperature data derived from testing loaded and unloaded specimens, acorrection factor and practical constraints on the use of the fire protection system (the physicalperformance) andb) on the basis of the temperature data derived from testing unloaded short steel specimens, thethermal properties of the fire protection material (the thermal performance).The limits of applicability of the results of the assessment are defined together with permitted directapplication of the results to different steel section sizes and strength grades (but not stainless steels)and to the fire protection system tested. The results of the tests obtained according to ISO 834-10 andthe assessment in this part of ISO 834 are directly applicable to steel sections of “I” and “H” crosssectionalshape and hollow sections. Results from analysis of I or H sections are directly applicable toangles, channels, and T-sections for the same section factor, whether used as individual elements or aspart of a fabricated steel truss.The results of the assessment are applicable to fabricated sections.This part of ISO 834 does not apply to concrete-filled hollow sections, beams, or columns containingholes or openings of any type or solid bar.Any assessment method is acceptable provided it meets the acceptability criteria given in 5.5. Examplesof assessment methods in common use are given in Annexes C to G.
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