BS PD ISO/TR 24679-4:2017提供了与建筑物耐火性评估相关的消防工程应用 按照ISO 24679-1中给出的方法建造15层钢框架建筑。这份文件 描述采用的流程，该流程遵循与中提供的相同的分步程序 ISO 24679-1。本文件的附件给出了该项目的详细评估结果 根据本特定消防安全工程程序的结果确定最严重的火灾情况 为了大楼。本例中的消防安全工程应用于办公楼的火灾 阻力考虑了具体的设计火灾场景以及相应的火灾发展。 它充分考虑了- 发生了隔间火灾。在现实情况下，激活火 灭火系统和/或消防队的干预是可以预期的，但它们的有益影响是有限的 没有考虑在内。应注意的是，这些严重火灾场景已被选为火灾场景 抵抗的目的。整体结构行为未明确考虑，但隐含在计算中 公式。由于示例建筑位于地震区，因此主要结构构件 它们彼此紧密相连。从加热元件到冷环境的负荷再分配 元素存在，但在设计计算中未将其考虑在内。通过这种方法，设计是可行的 保守，而安全检查过程大大简化和清晰。 因此，所有的 计算采用显式代数公式。交叉引用:ISO 13943:2008ISO 23932:2009 Ed 1ISO 834-1:1999/AMD 1:2012ISO 24679-1购买本文件时提供的所有当前修订版均包含在购买本文件中。

BS PD ISO/TR 24679-4:2017 provides a fire engineering application relative to the fire resistance assessment of a fifteen-storey steel framed building following the methodology given in ISO 24679-1. This document describes the adopted process which follows the same step by step procedure as that provided in ISO 24679-1. The annexes of this document present the detailed assessment results obtained for the most severe fire scenarios on the basis of the outcome of this specific fire safety engineering procedure for the building.The fire safety engineering applied in this example to the office building with respect to its fire resistance considers specific design fire scenarios as well as the corresponding fire development. It takes into account fully-developed compartment fires. In realistic situations, activation of fire suppression systems and/or intervention of fire brigade are expected, but their beneficial effects are not taken into account. It should be noted that these severe fire scenarios have been selected for fire resistance purposes.Global structural behaviour is not explicitly considered, but implicitly included in the calculation formulae. Since the building of the example is located in a seismic region, principal structural elements are rigidly connected to each other. Load redistribution from heated elements to cold surrounding elements exists, but it's not taken into account in the design calculations. By this approach, design is conservative, while the process of safety checking is greatly simplified and clear. As a result, all the calculations were carried out by explicit algebraic formulae.Cross References:ISO 13943:2008ISO 23932:2009 Ed 1ISO 834-1:1999/AMD 1:2012ISO 24679-1All current amendments available at time of purchase are included with the purchase of this document.