标准摘要
[中文适用范围]： ISO 834 的这一部分规定了确定承重水平分隔元件在暴露于底部加热时的耐火性时应遵循的程序。 当无法在没有梁的情况下以代表性方式测试地板或屋顶组件时，该测试也适用于评估包含梁的承重分离元件。 然而，数据不能直接从一者传输到另一者。 当结构符合 ISO 834 本部分给出的直接应用领域或根据 ISO/TR 12470 进行扩展应用分析时，将该测试应用于其他未经测试的结构形式是可接受的。 TR 12470 仅给出一般指南，具体的扩展应用分析只能由耐火结构方面的专家进行。 [外文原描述]： This part of ISO 834 specifies the procedures to be followed for determining the fire resistance of loadbearing horizontal separating elements when exposed to heating from the underside. The test is also appropriate for the evaluation of loadbearing separating elements containing beams when it is not possible to test the floor or roof assembly in a representative manner without them. However, the data cannot be transferred directly one to the other. The application of this test to other untested forms of construction is acceptable when the construction complies with the direct field of application as given in this part of ISO 834 or when subjected to an extended application analysis in accordance with ISO/TR 12470. Since ISO/TR 12470 gives only general guidelines, specific extended application analyses are to be performed only by persons expert in fire-resistant constructions.
英文名称Fire-resistance tests — Elements of building construction — Part 5: Specific requirements for loadbearing horizontal separating elements