Fire resistance tests — Elements of building construction — Part 10: Specific requirements to determine the contribution of applied fire protection materials to structural steel elements
耐火试验——建筑构件第10部分:确定所用防火材料对结构钢构件贡献的特殊要求
发布日期:
2014-02-10
ISO 834-10:2014规定了一种测试建筑中用作梁、柱或受拉构件的结构钢构件防火系统的方法。它旨在与ISO 834-11中描述的评估协议一起使用。它适用于钢型材(包括空心型材),只考虑腹板上没有开口的型材。I型或H型截面的分析结果直接适用于具有相同截面系数的角钢、槽钢和T型截面,无论是用作单个构件(如支撑)还是装配式结构系统(如钢桁架结构)的一部分。ISO 834-10:2014不适用于实心钢筋、杆或混凝土填充空心型材。
ISO 834-10:2014描述了火灾试验程序,其中规定了应进行的试验,以确定消防系统对油井保持足够一致和到位的能力-
规定的变形范围、炉温和钢材温度,以确保消防系统的效能不会显著受损,并提供暴露在ISO 834-1规定的标准温度/时间曲线下时消防系统热特性的数据。
在国家建筑法规规定的特殊情况下,可要求反应型防火材料符合阴燃曲线。ISO 834-10:2014(附录G)中描述了试验及其使用要求。
ISO 834-10:2014适用于术语和定义中定义的被动和被动消防系统,其安装或应用方式应确保其在火灾暴露的预期持续时间内保持原位。
耐火试验方法规定了数据的收集和呈现,然后将其作为ISO 834?11的直接输入,以确定直接应用于各种形状、尺寸和耐火期的型钢的极限。
ISO 834-10:2014 specifies a method for testing fire protection systems applied to structural steel members used in buildings as beams, columns, or tension members. It is intended for use in conjunction with the assessment protocol described in ISO 834?11. It applies to steel sections (including hollow sections) and only considers sections without openings in the web. 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 members, e.g. bracing, or part of a fabricated structural system such as a steel truss construction. ISO 834-10:2014 does not apply to solid bar, rod, or concrete-filled hollow sections.
ISO 834-10:2014 describes the fire test procedures that specify the tests which should be carried out to determine the ability of the fire protection system to remain sufficiently coherent and in position for a well-defined range of deformations, furnace, and steel temperatures, such that the efficacy of the fire protection system is not significantly impaired, and 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.
In special circumstances, where specified in National Building Regulations, there can be a requirement to subject reactive fire protection materials to a smouldering curve. The test and the requirements for its use are described in ISO 834-10:2014 (Annex G).
ISO 834-10:2014 is applicable to both passive and reactive fire protection systems as defined in the terms and definitions, which are installed or applied in such a way that they remain in place for the intended duration of fire exposure.
The fire test methodology makes provision for the collection and presentation of data which is then used as direct input into ISO 834?11 to determine the limits of direct application to steel sections of various shapes, sizes, and fire resistance periods.